./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/thin000_pso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_045965dd-c811-4f8e-b1ce-1ef0d0ab5d4a/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_045965dd-c811-4f8e-b1ce-1ef0d0ab5d4a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_045965dd-c811-4f8e-b1ce-1ef0d0ab5d4a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_045965dd-c811-4f8e-b1ce-1ef0d0ab5d4a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/thin000_pso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_045965dd-c811-4f8e-b1ce-1ef0d0ab5d4a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_045965dd-c811-4f8e-b1ce-1ef0d0ab5d4a/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 c2d7484d3329da20ece99192d00e62d96fcc1d2b ........................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:10:18,953 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:10:18,955 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:10:18,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:10:18,969 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:10:18,970 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:10:18,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:10:18,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:10:18,984 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:10:18,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:10:18,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:10:18,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:10:18,990 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:10:18,992 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:10:18,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:10:18,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:10:18,995 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:10:18,996 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:10:18,998 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:10:19,001 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:10:19,005 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:10:19,008 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:10:19,009 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:10:19,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:10:19,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:10:19,012 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:10:19,012 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:10:19,013 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:10:19,014 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:10:19,014 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:10:19,015 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:10:19,015 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:10:19,016 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:10:19,016 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:10:19,017 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:10:19,017 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:10:19,018 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:10:19,018 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:10:19,018 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:10:19,019 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:10:19,020 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:10:19,021 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_045965dd-c811-4f8e-b1ce-1ef0d0ab5d4a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:10:19,045 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:10:19,045 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:10:19,045 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:10:19,046 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:10:19,046 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:10:19,046 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:10:19,046 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:10:19,046 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:10:19,047 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:10:19,047 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:10:19,047 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:10:19,047 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:10:19,047 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:10:19,047 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:10:19,048 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:10:19,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:10:19,048 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:10:19,049 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:10:19,049 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:10:19,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:10:19,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:10:19,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:10:19,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:10:19,050 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:10:19,050 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:10:19,050 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:10:19,050 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:10:19,050 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:10:19,051 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:10:19,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:10:19,051 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:10:19,051 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:10:19,051 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:10:19,052 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:10:19,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:10:19,052 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:10:19,052 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:10:19,052 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_045965dd-c811-4f8e-b1ce-1ef0d0ab5d4a/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 -> c2d7484d3329da20ece99192d00e62d96fcc1d2b [2019-11-26 02:10:19,230 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:10:19,245 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:10:19,247 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:10:19,249 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:10:19,249 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:10:19,250 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_045965dd-c811-4f8e-b1ce-1ef0d0ab5d4a/bin/utaipan/../../sv-benchmarks/c/pthread-wmm/thin000_pso.opt.i [2019-11-26 02:10:19,305 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_045965dd-c811-4f8e-b1ce-1ef0d0ab5d4a/bin/utaipan/data/a9d64fe66/b7e5bfd9ef124922b32396c11bbbab39/FLAG5d44ce4ff [2019-11-26 02:10:19,762 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:10:19,763 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_045965dd-c811-4f8e-b1ce-1ef0d0ab5d4a/sv-benchmarks/c/pthread-wmm/thin000_pso.opt.i [2019-11-26 02:10:19,778 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_045965dd-c811-4f8e-b1ce-1ef0d0ab5d4a/bin/utaipan/data/a9d64fe66/b7e5bfd9ef124922b32396c11bbbab39/FLAG5d44ce4ff [2019-11-26 02:10:20,130 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_045965dd-c811-4f8e-b1ce-1ef0d0ab5d4a/bin/utaipan/data/a9d64fe66/b7e5bfd9ef124922b32396c11bbbab39 [2019-11-26 02:10:20,132 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:10:20,133 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:10:20,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:10:20,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:10:20,137 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:10:20,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:10:20" (1/1) ... [2019-11-26 02:10:20,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79d379a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:10:20, skipping insertion in model container [2019-11-26 02:10:20,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:10:20" (1/1) ... [2019-11-26 02:10:20,147 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:10:20,187 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:10:20,610 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:10:20,619 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:10:20,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:10:20,731 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:10:20,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:10:20 WrapperNode [2019-11-26 02:10:20,732 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:10:20,733 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:10:20,733 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:10:20,733 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:10:20,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:10:20" (1/1) ... [2019-11-26 02:10:20,754 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:10:20" (1/1) ... [2019-11-26 02:10:20,774 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:10:20,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:10:20,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:10:20,775 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:10:20,783 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:10:20" (1/1) ... [2019-11-26 02:10:20,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:10:20" (1/1) ... [2019-11-26 02:10:20,786 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:10:20" (1/1) ... [2019-11-26 02:10:20,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:10:20" (1/1) ... [2019-11-26 02:10:20,791 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:10:20" (1/1) ... [2019-11-26 02:10:20,793 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:10:20" (1/1) ... [2019-11-26 02:10:20,795 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:10:20" (1/1) ... [2019-11-26 02:10:20,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:10:20,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:10:20,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:10:20,798 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:10:20,799 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:10:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_045965dd-c811-4f8e-b1ce-1ef0d0ab5d4a/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:10:20,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:10:20,863 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-26 02:10:20,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:10:20,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:10:20,864 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-26 02:10:20,864 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-26 02:10:20,864 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-26 02:10:20,865 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-26 02:10:20,865 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-26 02:10:20,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:10:20,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:10:20,868 WARN L202 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-26 02:10:21,197 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:10:21,198 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-26 02:10:21,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:10:21 BoogieIcfgContainer [2019-11-26 02:10:21,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:10:21,200 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:10:21,200 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:10:21,202 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:10:21,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:10:20" (1/3) ... [2019-11-26 02:10:21,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6deb2895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:10:21, skipping insertion in model container [2019-11-26 02:10:21,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:10:20" (2/3) ... [2019-11-26 02:10:21,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6deb2895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:10:21, skipping insertion in model container [2019-11-26 02:10:21,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:10:21" (3/3) ... [2019-11-26 02:10:21,204 INFO L109 eAbstractionObserver]: Analyzing ICFG thin000_pso.opt.i [2019-11-26 02:10:21,257 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:10:21,257 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:10:21,257 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:10:21,258 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:10:21,258 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:10:21,259 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:10:21,259 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:10:21,259 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:10:21,259 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:10:21,259 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:10:21,260 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:10:21,260 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:10:21,261 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:10:21,261 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:10:21,261 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:10:21,262 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:10:21,262 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:10:21,262 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:10:21,263 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:10:21,263 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:10:21,264 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:10:21,264 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:10:21,264 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:10:21,264 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:10:21,264 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:10:21,265 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:10:21,265 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:10:21,265 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:10:21,265 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:10:21,265 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:10:21,266 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:10:21,267 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:10:21,267 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:10:21,267 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:10:21,268 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:10:21,268 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:10:21,289 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-26 02:10:21,289 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:10:21,296 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:10:21,307 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:10:21,327 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:10:21,327 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:10:21,327 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:10:21,327 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:10:21,327 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:10:21,327 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:10:21,328 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:10:21,328 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:10:21,339 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 71 places, 57 transitions [2019-11-26 02:10:21,389 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 287 states. [2019-11-26 02:10:21,391 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states. [2019-11-26 02:10:21,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-26 02:10:21,414 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:10:21,415 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:10:21,415 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:10:21,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:10:21,419 INFO L82 PathProgramCache]: Analyzing trace with hash -410351249, now seen corresponding path program 1 times [2019-11-26 02:10:21,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:10:21,428 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161051450] [2019-11-26 02:10:21,428 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:10:21,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:10:21,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:10:21,759 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161051450] [2019-11-26 02:10:21,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:10:21,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:10:21,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809176360] [2019-11-26 02:10:21,765 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:10:21,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:10:21,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:10:21,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:10:21,780 INFO L87 Difference]: Start difference. First operand 287 states. Second operand 4 states. [2019-11-26 02:10:21,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:10:21,841 INFO L93 Difference]: Finished difference Result 288 states and 647 transitions. [2019-11-26 02:10:21,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:10:21,847 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2019-11-26 02:10:21,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:10:21,866 INFO L225 Difference]: With dead ends: 288 [2019-11-26 02:10:21,866 INFO L226 Difference]: Without dead ends: 152 [2019-11-26 02:10:21,868 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:10:21,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2019-11-26 02:10:21,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2019-11-26 02:10:21,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2019-11-26 02:10:21,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 326 transitions. [2019-11-26 02:10:21,925 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 326 transitions. Word has length 26 [2019-11-26 02:10:21,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:10:21,925 INFO L462 AbstractCegarLoop]: Abstraction has 152 states and 326 transitions. [2019-11-26 02:10:21,925 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:10:21,925 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 326 transitions. [2019-11-26 02:10:21,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-26 02:10:21,927 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:10:21,927 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:10:21,928 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:10:21,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:10:21,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1300883899, now seen corresponding path program 1 times [2019-11-26 02:10:21,928 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:10:21,929 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150947655] [2019-11-26 02:10:21,929 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:10:21,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:10:22,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:10:22,036 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150947655] [2019-11-26 02:10:22,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:10:22,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-26 02:10:22,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821189089] [2019-11-26 02:10:22,038 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 02:10:22,038 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:10:22,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 02:10:22,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:10:22,038 INFO L87 Difference]: Start difference. First operand 152 states and 326 transitions. Second operand 5 states. [2019-11-26 02:10:22,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:10:22,091 INFO L93 Difference]: Finished difference Result 125 states and 242 transitions. [2019-11-26 02:10:22,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:10:22,096 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-11-26 02:10:22,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:10:22,097 INFO L225 Difference]: With dead ends: 125 [2019-11-26 02:10:22,097 INFO L226 Difference]: Without dead ends: 110 [2019-11-26 02:10:22,097 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:10:22,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-11-26 02:10:22,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-11-26 02:10:22,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-11-26 02:10:22,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 214 transitions. [2019-11-26 02:10:22,110 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 214 transitions. Word has length 27 [2019-11-26 02:10:22,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:10:22,111 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 214 transitions. [2019-11-26 02:10:22,111 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 02:10:22,111 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 214 transitions. [2019-11-26 02:10:22,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-26 02:10:22,112 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:10:22,113 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:10:22,113 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:10:22,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:10:22,113 INFO L82 PathProgramCache]: Analyzing trace with hash 707336749, now seen corresponding path program 1 times [2019-11-26 02:10:22,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:10:22,114 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377986918] [2019-11-26 02:10:22,114 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:10:22,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:10:22,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:10:22,239 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377986918] [2019-11-26 02:10:22,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:10:22,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-26 02:10:22,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773469482] [2019-11-26 02:10:22,240 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-26 02:10:22,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:10:22,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-26 02:10:22,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:10:22,241 INFO L87 Difference]: Start difference. First operand 110 states and 214 transitions. Second operand 7 states. [2019-11-26 02:10:22,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:10:22,377 INFO L93 Difference]: Finished difference Result 164 states and 331 transitions. [2019-11-26 02:10:22,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 02:10:22,378 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2019-11-26 02:10:22,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:10:22,379 INFO L225 Difference]: With dead ends: 164 [2019-11-26 02:10:22,380 INFO L226 Difference]: Without dead ends: 95 [2019-11-26 02:10:22,380 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-26 02:10:22,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-11-26 02:10:22,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2019-11-26 02:10:22,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-11-26 02:10:22,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 184 transitions. [2019-11-26 02:10:22,388 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 184 transitions. Word has length 28 [2019-11-26 02:10:22,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:10:22,389 INFO L462 AbstractCegarLoop]: Abstraction has 95 states and 184 transitions. [2019-11-26 02:10:22,389 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-26 02:10:22,389 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 184 transitions. [2019-11-26 02:10:22,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-26 02:10:22,390 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:10:22,390 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:10:22,390 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:10:22,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:10:22,391 INFO L82 PathProgramCache]: Analyzing trace with hash 523853883, now seen corresponding path program 2 times [2019-11-26 02:10:22,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:10:22,391 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608284500] [2019-11-26 02:10:22,391 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:10:22,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:10:22,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:10:22,570 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608284500] [2019-11-26 02:10:22,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:10:22,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-26 02:10:22,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116406625] [2019-11-26 02:10:22,571 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-26 02:10:22,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:10:22,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-26 02:10:22,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:10:22,571 INFO L87 Difference]: Start difference. First operand 95 states and 184 transitions. Second operand 7 states. [2019-11-26 02:10:22,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:10:22,656 INFO L93 Difference]: Finished difference Result 77 states and 142 transitions. [2019-11-26 02:10:22,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 02:10:22,657 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2019-11-26 02:10:22,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:10:22,657 INFO L225 Difference]: With dead ends: 77 [2019-11-26 02:10:22,657 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:10:22,658 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-26 02:10:22,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:10:22,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:10:22,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:10:22,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:10:22,659 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2019-11-26 02:10:22,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:10:22,659 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:10:22,659 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-26 02:10:22,659 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:10:22,659 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:10:22,662 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-26 02:10:22,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:10:22 BasicIcfg [2019-11-26 02:10:22,664 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:10:22,664 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:10:22,664 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:10:22,664 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:10:22,665 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:10:21" (3/4) ... [2019-11-26 02:10:22,668 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:10:22,674 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-26 02:10:22,674 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-26 02:10:22,678 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-26 02:10:22,678 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:10:22,679 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:10:22,722 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_045965dd-c811-4f8e-b1ce-1ef0d0ab5d4a/bin/utaipan/witness.graphml [2019-11-26 02:10:22,722 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:10:22,724 INFO L168 Benchmark]: Toolchain (without parser) took 2590.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 946.1 MB in the beginning and 968.0 MB in the end (delta: -22.0 MB). Peak memory consumption was 114.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:10:22,724 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:10:22,725 INFO L168 Benchmark]: CACSL2BoogieTranslator took 598.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -162.6 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:10:22,725 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.19 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. [2019-11-26 02:10:22,725 INFO L168 Benchmark]: Boogie Preprocessor took 23.31 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:10:22,726 INFO L168 Benchmark]: RCFGBuilder took 401.22 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. [2019-11-26 02:10:22,726 INFO L168 Benchmark]: TraceAbstraction took 1464.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 968.0 MB in the end (delta: 112.8 MB). Peak memory consumption was 112.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:10:22,726 INFO L168 Benchmark]: Witness Printer took 58.08 ms. Allocated memory is still 1.2 GB. Free memory is still 968.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:10:22,729 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 598.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -162.6 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.19 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. * Boogie Preprocessor took 23.31 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 401.22 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 1464.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 968.0 MB in the end (delta: 112.8 MB). Peak memory consumption was 112.8 MB. Max. memory is 11.5 GB. * Witness Printer took 58.08 ms. Allocated memory is still 1.2 GB. Free memory is still 968.0 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 9 procedures, 67 locations, 1 error locations. Result: SAFE, OverallTime: 1.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 144 SDtfs, 151 SDslu, 349 SDs, 0 SdLazy, 60 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=287occurred 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 109 NumberOfCodeBlocks, 109 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 8139 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...