./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-divine/condvar.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_8402c1a8-e859-464a-8b8f-02f3273be613/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8402c1a8-e859-464a-8b8f-02f3273be613/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8402c1a8-e859-464a-8b8f-02f3273be613/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8402c1a8-e859-464a-8b8f-02f3273be613/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-divine/condvar.i -s /tmp/vcloud-vcloud-master/worker/run_dir_8402c1a8-e859-464a-8b8f-02f3273be613/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8402c1a8-e859-464a-8b8f-02f3273be613/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 608daa6125fca7edb704aa4fad695d54b285441b ......................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8402c1a8-e859-464a-8b8f-02f3273be613/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8402c1a8-e859-464a-8b8f-02f3273be613/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8402c1a8-e859-464a-8b8f-02f3273be613/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8402c1a8-e859-464a-8b8f-02f3273be613/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-divine/condvar.i -s /tmp/vcloud-vcloud-master/worker/run_dir_8402c1a8-e859-464a-8b8f-02f3273be613/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8402c1a8-e859-464a-8b8f-02f3273be613/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 608daa6125fca7edb704aa4fad695d54b285441b ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:42:06,180 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:42:06,182 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:42:06,192 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:42:06,192 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:42:06,193 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:42:06,194 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:42:06,196 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:42:06,198 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:42:06,199 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:42:06,199 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:42:06,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:42:06,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:42:06,202 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:42:06,203 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:42:06,204 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:42:06,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:42:06,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:42:06,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:42:06,209 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:42:06,210 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:42:06,211 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:42:06,212 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:42:06,213 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:42:06,215 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:42:06,215 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:42:06,216 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:42:06,216 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:42:06,217 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:42:06,218 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:42:06,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:42:06,218 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:42:06,219 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:42:06,220 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:42:06,221 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:42:06,221 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:42:06,221 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:42:06,221 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:42:06,222 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:42:06,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:42:06,223 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:42:06,224 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8402c1a8-e859-464a-8b8f-02f3273be613/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:42:06,238 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:42:06,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:42:06,239 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:42:06,239 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:42:06,239 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:42:06,239 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:42:06,240 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:42:06,240 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:42:06,240 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:42:06,240 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:42:06,240 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:42:06,240 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:42:06,242 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:42:06,243 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:42:06,243 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:42:06,243 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:42:06,243 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:42:06,244 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:42:06,244 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:42:06,244 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:42:06,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:42:06,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:42:06,245 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:42:06,245 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:42:06,245 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:42:06,245 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:42:06,246 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:42:06,246 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:42:06,246 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:42:06,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:42:06,247 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:42:06,247 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:42:06,247 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:42:06,247 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:42:06,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:42:06,248 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:42:06,249 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:42:06,249 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_8402c1a8-e859-464a-8b8f-02f3273be613/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 -> 608daa6125fca7edb704aa4fad695d54b285441b [2019-11-26 02:42:06,388 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:42:06,397 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:42:06,400 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:42:06,401 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:42:06,402 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:42:06,402 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8402c1a8-e859-464a-8b8f-02f3273be613/bin/utaipan/../../sv-benchmarks/c/pthread-divine/condvar.i [2019-11-26 02:42:06,448 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8402c1a8-e859-464a-8b8f-02f3273be613/bin/utaipan/data/9560cd517/f662e9d480a3422d906bbfda1d3ec0dd/FLAGc85d4de20 [2019-11-26 02:42:06,912 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:42:06,913 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8402c1a8-e859-464a-8b8f-02f3273be613/sv-benchmarks/c/pthread-divine/condvar.i [2019-11-26 02:42:06,925 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8402c1a8-e859-464a-8b8f-02f3273be613/bin/utaipan/data/9560cd517/f662e9d480a3422d906bbfda1d3ec0dd/FLAGc85d4de20 [2019-11-26 02:42:06,941 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8402c1a8-e859-464a-8b8f-02f3273be613/bin/utaipan/data/9560cd517/f662e9d480a3422d906bbfda1d3ec0dd [2019-11-26 02:42:06,945 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:42:06,947 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:42:06,949 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:42:06,949 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:42:06,952 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:42:06,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:42:06" (1/1) ... [2019-11-26 02:42:06,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37b01945 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:06, skipping insertion in model container [2019-11-26 02:42:06,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:42:06" (1/1) ... [2019-11-26 02:42:06,962 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:42:07,012 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:42:07,261 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2019-11-26 02:42:07,415 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:42:07,448 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:42:07,474 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2019-11-26 02:42:07,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:42:07,563 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:42:07,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:07 WrapperNode [2019-11-26 02:42:07,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:42:07,564 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:42:07,565 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:42:07,565 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:42:07,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:07" (1/1) ... [2019-11-26 02:42:07,600 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:07" (1/1) ... [2019-11-26 02:42:07,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:42:07,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:42:07,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:42:07,619 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:42:07,627 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:07" (1/1) ... [2019-11-26 02:42:07,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:07" (1/1) ... [2019-11-26 02:42:07,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:07" (1/1) ... [2019-11-26 02:42:07,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:07" (1/1) ... [2019-11-26 02:42:07,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:07" (1/1) ... [2019-11-26 02:42:07,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:07" (1/1) ... [2019-11-26 02:42:07,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:07" (1/1) ... [2019-11-26 02:42:07,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:42:07,664 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:42:07,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:42:07,665 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:42:07,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8402c1a8-e859-464a-8b8f-02f3273be613/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 02:42:07,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-26 02:42:07,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:42:07,716 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-11-26 02:42:07,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:42:07,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:42:07,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:42:07,716 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2019-11-26 02:42:07,717 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2019-11-26 02:42:07,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:42:07,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:42:07,718 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 02:42:07,985 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:42:07,986 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-26 02:42:07,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:42:07 BoogieIcfgContainer [2019-11-26 02:42:07,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:42:07,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:42:07,988 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:42:07,990 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:42:07,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:42:06" (1/3) ... [2019-11-26 02:42:07,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23fa5c1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:42:07, skipping insertion in model container [2019-11-26 02:42:07,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:07" (2/3) ... [2019-11-26 02:42:07,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23fa5c1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:42:07, skipping insertion in model container [2019-11-26 02:42:07,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:42:07" (3/3) ... [2019-11-26 02:42:07,993 INFO L109 eAbstractionObserver]: Analyzing ICFG condvar.i [2019-11-26 02:42:08,028 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:08,029 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:08,029 WARN L315 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:08,029 WARN L315 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:08,030 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:08,030 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:08,031 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:08,031 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:08,031 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:08,031 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:08,032 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:08,032 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:08,032 WARN L315 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:08,033 WARN L315 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:08,033 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:08,033 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:08,034 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:08,034 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:08,034 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:08,034 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:08,035 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:08,035 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:08,035 WARN L315 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:08,036 WARN L315 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:08,036 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:08,036 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:08,037 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:08,037 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:08,037 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:08,038 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:08,058 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-26 02:42:08,058 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:42:08,064 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-26 02:42:08,073 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-26 02:42:08,087 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:42:08,088 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:42:08,088 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:42:08,088 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:42:08,088 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:42:08,088 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:42:08,088 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:42:08,088 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:42:08,098 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 89 places, 94 transitions [2019-11-26 02:42:08,125 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 171 states. [2019-11-26 02:42:08,127 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states. [2019-11-26 02:42:08,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-26 02:42:08,135 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:42:08,135 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, 1, 1, 1] [2019-11-26 02:42:08,135 INFO L410 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:42:08,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:42:08,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1451649095, now seen corresponding path program 1 times [2019-11-26 02:42:08,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:42:08,145 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743807545] [2019-11-26 02:42:08,146 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:42:08,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:42:08,374 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 02:42:08,375 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743807545] [2019-11-26 02:42:08,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:42:08,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:42:08,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802799832] [2019-11-26 02:42:08,380 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:42:08,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:42:08,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:42:08,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:42:08,393 INFO L87 Difference]: Start difference. First operand 171 states. Second operand 3 states. [2019-11-26 02:42:08,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:42:08,420 INFO L93 Difference]: Finished difference Result 115 states and 192 transitions. [2019-11-26 02:42:08,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:42:08,422 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2019-11-26 02:42:08,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:42:08,432 INFO L225 Difference]: With dead ends: 115 [2019-11-26 02:42:08,432 INFO L226 Difference]: Without dead ends: 101 [2019-11-26 02:42:08,434 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:42:08,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-11-26 02:42:08,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2019-11-26 02:42:08,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-11-26 02:42:08,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 174 transitions. [2019-11-26 02:42:08,473 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 174 transitions. Word has length 31 [2019-11-26 02:42:08,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:42:08,474 INFO L462 AbstractCegarLoop]: Abstraction has 101 states and 174 transitions. [2019-11-26 02:42:08,474 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:42:08,474 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 174 transitions. [2019-11-26 02:42:08,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-26 02:42:08,477 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:42:08,477 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, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:42:08,478 INFO L410 AbstractCegarLoop]: === Iteration 2 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:42:08,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:42:08,478 INFO L82 PathProgramCache]: Analyzing trace with hash -157941803, now seen corresponding path program 1 times [2019-11-26 02:42:08,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:42:08,479 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044565811] [2019-11-26 02:42:08,479 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:42:08,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:42:08,582 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 02:42:08,582 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044565811] [2019-11-26 02:42:08,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:42:08,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:42:08,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778637211] [2019-11-26 02:42:08,584 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:42:08,584 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:42:08,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:42:08,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:42:08,585 INFO L87 Difference]: Start difference. First operand 101 states and 174 transitions. Second operand 3 states. [2019-11-26 02:42:08,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:42:08,608 INFO L93 Difference]: Finished difference Result 129 states and 230 transitions. [2019-11-26 02:42:08,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:42:08,608 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2019-11-26 02:42:08,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:42:08,611 INFO L225 Difference]: With dead ends: 129 [2019-11-26 02:42:08,611 INFO L226 Difference]: Without dead ends: 129 [2019-11-26 02:42:08,611 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:42:08,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-11-26 02:42:08,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 108. [2019-11-26 02:42:08,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-11-26 02:42:08,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 188 transitions. [2019-11-26 02:42:08,625 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 188 transitions. Word has length 35 [2019-11-26 02:42:08,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:42:08,626 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 188 transitions. [2019-11-26 02:42:08,626 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:42:08,626 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 188 transitions. [2019-11-26 02:42:08,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-11-26 02:42:08,628 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:42:08,628 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:42:08,629 INFO L410 AbstractCegarLoop]: === Iteration 3 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:42:08,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:42:08,629 INFO L82 PathProgramCache]: Analyzing trace with hash 1265536404, now seen corresponding path program 1 times [2019-11-26 02:42:08,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:42:08,630 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116986841] [2019-11-26 02:42:08,630 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:42:08,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:42:08,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:42:08,743 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116986841] [2019-11-26 02:42:08,743 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204256918] [2019-11-26 02:42:08,743 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8402c1a8-e859-464a-8b8f-02f3273be613/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:42:08,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:42:08,823 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-26 02:42:08,829 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:42:08,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:42:08,873 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:42:08,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:42:08,920 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2110183759] [2019-11-26 02:42:08,936 FATAL L310 FreeRefinementEngine]: Exception during interpolant generation: UnsupportedOperationException [2019-11-26 02:42:09,137 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:42:09,139 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:294) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:269) at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175) at java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1556) at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482) at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472) at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:485) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:213) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:111) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:297) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:190) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:180) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-26 02:42:09,151 INFO L168 Benchmark]: Toolchain (without parser) took 2201.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -61.6 MB). Peak memory consumption was 80.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:42:09,153 INFO L168 Benchmark]: CDTParser took 0.21 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 02:42:09,154 INFO L168 Benchmark]: CACSL2BoogieTranslator took 615.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -169.2 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:42:09,155 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.28 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 02:42:09,156 INFO L168 Benchmark]: Boogie Preprocessor took 44.62 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 02:42:09,158 INFO L168 Benchmark]: RCFGBuilder took 323.20 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: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:42:09,161 INFO L168 Benchmark]: TraceAbstraction took 1158.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 79.7 MB). Peak memory consumption was 79.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:42:09,176 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 615.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -169.2 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 54.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 323.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1158.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 79.7 MB). Peak memory consumption was 79.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:294) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-6b5699a [2019-11-26 02:42:11,058 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:42:11,059 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:42:11,070 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:42:11,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:42:11,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:42:11,072 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:42:11,074 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:42:11,076 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:42:11,076 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:42:11,077 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:42:11,078 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:42:11,078 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:42:11,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:42:11,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:42:11,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:42:11,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:42:11,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:42:11,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:42:11,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:42:11,088 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:42:11,088 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:42:11,089 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:42:11,090 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:42:11,092 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:42:11,093 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:42:11,093 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:42:11,093 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:42:11,094 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:42:11,095 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:42:11,095 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:42:11,096 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:42:11,096 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:42:11,097 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:42:11,098 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:42:11,098 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:42:11,099 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:42:11,099 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:42:11,099 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:42:11,100 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:42:11,100 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:42:11,101 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8402c1a8-e859-464a-8b8f-02f3273be613/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-11-26 02:42:11,114 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:42:11,114 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:42:11,115 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:42:11,115 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:42:11,115 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:42:11,116 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:42:11,116 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:42:11,116 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:42:11,116 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:42:11,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:42:11,117 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:42:11,117 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:42:11,117 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:42:11,117 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:42:11,118 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:42:11,118 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:42:11,118 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-26 02:42:11,118 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-26 02:42:11,119 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-26 02:42:11,119 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:42:11,119 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:42:11,119 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:42:11,119 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:42:11,120 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:42:11,120 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 02:42:11,120 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:42:11,120 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:42:11,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:42:11,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:42:11,121 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:42:11,121 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:42:11,121 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-11-26 02:42:11,122 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-26 02:42:11,122 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:42:11,122 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:42:11,122 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_8402c1a8-e859-464a-8b8f-02f3273be613/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 -> 608daa6125fca7edb704aa4fad695d54b285441b [2019-11-26 02:42:11,373 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:42:11,384 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:42:11,387 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:42:11,388 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:42:11,388 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:42:11,389 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8402c1a8-e859-464a-8b8f-02f3273be613/bin/utaipan/../../sv-benchmarks/c/pthread-divine/condvar.i [2019-11-26 02:42:11,436 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8402c1a8-e859-464a-8b8f-02f3273be613/bin/utaipan/data/656b725fc/71c1ee27e1d347c2bcdcecfe0c98c3c5/FLAGad2c6b84e [2019-11-26 02:42:11,951 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:42:11,952 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8402c1a8-e859-464a-8b8f-02f3273be613/sv-benchmarks/c/pthread-divine/condvar.i [2019-11-26 02:42:11,963 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8402c1a8-e859-464a-8b8f-02f3273be613/bin/utaipan/data/656b725fc/71c1ee27e1d347c2bcdcecfe0c98c3c5/FLAGad2c6b84e [2019-11-26 02:42:12,411 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8402c1a8-e859-464a-8b8f-02f3273be613/bin/utaipan/data/656b725fc/71c1ee27e1d347c2bcdcecfe0c98c3c5 [2019-11-26 02:42:12,414 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:42:12,415 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:42:12,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:42:12,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:42:12,420 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:42:12,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:42:12" (1/1) ... [2019-11-26 02:42:12,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@760aa42c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:12, skipping insertion in model container [2019-11-26 02:42:12,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:42:12" (1/1) ... [2019-11-26 02:42:12,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:42:12,465 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:42:12,636 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2019-11-26 02:42:12,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:42:12,925 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:42:12,957 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2019-11-26 02:42:12,976 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:42:13,058 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:42:13,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:13 WrapperNode [2019-11-26 02:42:13,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:42:13,060 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:42:13,060 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:42:13,060 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:42:13,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:13" (1/1) ... [2019-11-26 02:42:13,102 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:13" (1/1) ... [2019-11-26 02:42:13,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:42:13,123 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:42:13,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:42:13,123 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:42:13,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:13" (1/1) ... [2019-11-26 02:42:13,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:13" (1/1) ... [2019-11-26 02:42:13,134 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:13" (1/1) ... [2019-11-26 02:42:13,135 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:13" (1/1) ... [2019-11-26 02:42:13,150 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:13" (1/1) ... [2019-11-26 02:42:13,156 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:13" (1/1) ... [2019-11-26 02:42:13,159 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:13" (1/1) ... [2019-11-26 02:42:13,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:42:13,169 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:42:13,170 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:42:13,170 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:42:13,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8402c1a8-e859-464a-8b8f-02f3273be613/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 02:42:13,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-26 02:42:13,247 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-11-26 02:42:13,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:42:13,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:42:13,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-26 02:42:13,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2019-11-26 02:42:13,248 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2019-11-26 02:42:13,248 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2019-11-26 02:42:13,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:42:13,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:42:13,251 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-26 02:42:13,612 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:42:13,612 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-26 02:42:13,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:42:13 BoogieIcfgContainer [2019-11-26 02:42:13,613 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:42:13,614 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:42:13,614 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:42:13,616 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:42:13,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:42:12" (1/3) ... [2019-11-26 02:42:13,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ae410e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:42:13, skipping insertion in model container [2019-11-26 02:42:13,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:13" (2/3) ... [2019-11-26 02:42:13,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ae410e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:42:13, skipping insertion in model container [2019-11-26 02:42:13,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:42:13" (3/3) ... [2019-11-26 02:42:13,619 INFO L109 eAbstractionObserver]: Analyzing ICFG condvar.i [2019-11-26 02:42:13,651 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:13,651 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:13,652 WARN L315 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:13,652 WARN L315 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:13,652 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:13,653 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:13,653 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:13,653 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:13,654 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:13,654 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:13,654 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:13,655 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:13,655 WARN L315 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:13,655 WARN L315 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:13,655 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:13,656 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:13,656 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:13,657 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:13,657 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:13,657 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:13,658 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:13,658 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:13,658 WARN L315 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:13,658 WARN L315 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:13,659 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:13,659 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:13,659 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:13,660 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:13,660 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:13,660 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:13,678 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-26 02:42:13,678 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:42:13,685 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-26 02:42:13,695 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-26 02:42:13,711 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:42:13,711 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:42:13,712 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:42:13,712 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:42:13,712 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:42:13,712 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:42:13,712 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:42:13,713 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:42:13,723 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 90 places, 95 transitions [2019-11-26 02:42:13,747 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 172 states. [2019-11-26 02:42:13,749 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states. [2019-11-26 02:42:13,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-26 02:42:13,758 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:42:13,759 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, 1, 1, 1, 1] [2019-11-26 02:42:13,759 INFO L410 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:42:13,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:42:13,764 INFO L82 PathProgramCache]: Analyzing trace with hash 337670385, now seen corresponding path program 1 times [2019-11-26 02:42:13,774 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:42:13,775 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1597690853] [2019-11-26 02:42:13,775 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8402c1a8-e859-464a-8b8f-02f3273be613/bin/utaipan/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:42:13,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:42:13,906 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-26 02:42:13,911 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:42:13,929 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 02:42:13,930 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:42:13,936 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 02:42:13,937 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1597690853] [2019-11-26 02:42:13,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:42:13,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-26 02:42:13,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113149647] [2019-11-26 02:42:13,943 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 02:42:13,943 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:42:13,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 02:42:13,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:42:13,958 INFO L87 Difference]: Start difference. First operand 172 states. Second operand 2 states. [2019-11-26 02:42:13,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:42:13,979 INFO L93 Difference]: Finished difference Result 172 states and 312 transitions. [2019-11-26 02:42:13,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 02:42:13,980 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 32 [2019-11-26 02:42:13,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:42:13,992 INFO L225 Difference]: With dead ends: 172 [2019-11-26 02:42:13,992 INFO L226 Difference]: Without dead ends: 126 [2019-11-26 02:42:13,994 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:42:14,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2019-11-26 02:42:14,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2019-11-26 02:42:14,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2019-11-26 02:42:14,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 226 transitions. [2019-11-26 02:42:14,038 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 226 transitions. Word has length 32 [2019-11-26 02:42:14,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:42:14,039 INFO L462 AbstractCegarLoop]: Abstraction has 126 states and 226 transitions. [2019-11-26 02:42:14,039 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 02:42:14,039 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 226 transitions. [2019-11-26 02:42:14,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-26 02:42:14,040 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:42:14,041 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, 1, 1, 1, 1] [2019-11-26 02:42:14,244 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:42:14,246 INFO L410 AbstractCegarLoop]: === Iteration 2 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:42:14,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:42:14,247 INFO L82 PathProgramCache]: Analyzing trace with hash 337671346, now seen corresponding path program 1 times [2019-11-26 02:42:14,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:42:14,265 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1388617194] [2019-11-26 02:42:14,265 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8402c1a8-e859-464a-8b8f-02f3273be613/bin/utaipan/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:42:14,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:42:14,375 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-26 02:42:14,377 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:42:14,400 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 02:42:14,400 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:42:14,407 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 02:42:14,407 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1388617194] [2019-11-26 02:42:14,407 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:42:14,408 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-11-26 02:42:14,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703705943] [2019-11-26 02:42:14,409 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:42:14,410 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:42:14,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:42:14,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:42:14,410 INFO L87 Difference]: Start difference. First operand 126 states and 226 transitions. Second operand 3 states. [2019-11-26 02:42:14,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:42:14,424 INFO L93 Difference]: Finished difference Result 110 states and 187 transitions. [2019-11-26 02:42:14,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:42:14,424 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2019-11-26 02:42:14,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:42:14,426 INFO L225 Difference]: With dead ends: 110 [2019-11-26 02:42:14,426 INFO L226 Difference]: Without dead ends: 102 [2019-11-26 02:42:14,427 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:42:14,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2019-11-26 02:42:14,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2019-11-26 02:42:14,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-11-26 02:42:14,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 173 transitions. [2019-11-26 02:42:14,437 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 173 transitions. Word has length 32 [2019-11-26 02:42:14,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:42:14,438 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 173 transitions. [2019-11-26 02:42:14,438 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:42:14,438 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 173 transitions. [2019-11-26 02:42:14,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-11-26 02:42:14,440 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:42:14,440 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:42:14,644 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:42:14,644 INFO L410 AbstractCegarLoop]: === Iteration 3 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:42:14,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:42:14,645 INFO L82 PathProgramCache]: Analyzing trace with hash -420777815, now seen corresponding path program 1 times [2019-11-26 02:42:14,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:42:14,646 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [660035647] [2019-11-26 02:42:14,647 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8402c1a8-e859-464a-8b8f-02f3273be613/bin/utaipan/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:42:14,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:42:14,780 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-26 02:42:14,782 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:42:14,798 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 02:42:14,798 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:42:14,818 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 02:42:14,819 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [660035647] [2019-11-26 02:42:14,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:42:14,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-26 02:42:14,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534215955] [2019-11-26 02:42:14,820 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:42:14,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:42:14,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:42:14,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:42:14,821 INFO L87 Difference]: Start difference. First operand 102 states and 173 transitions. Second operand 4 states. [2019-11-26 02:42:14,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:42:14,851 INFO L93 Difference]: Finished difference Result 130 states and 229 transitions. [2019-11-26 02:42:14,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:42:14,852 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2019-11-26 02:42:14,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:42:14,853 INFO L225 Difference]: With dead ends: 130 [2019-11-26 02:42:14,853 INFO L226 Difference]: Without dead ends: 130 [2019-11-26 02:42:14,854 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:42:14,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2019-11-26 02:42:14,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 109. [2019-11-26 02:42:14,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-11-26 02:42:14,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 187 transitions. [2019-11-26 02:42:14,866 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 187 transitions. Word has length 36 [2019-11-26 02:42:14,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:42:14,866 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 187 transitions. [2019-11-26 02:42:14,866 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:42:14,867 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 187 transitions. [2019-11-26 02:42:14,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-11-26 02:42:14,868 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:42:14,869 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:42:15,071 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:42:15,071 INFO L410 AbstractCegarLoop]: === Iteration 4 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:42:15,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:42:15,072 INFO L82 PathProgramCache]: Analyzing trace with hash -300126815, now seen corresponding path program 1 times [2019-11-26 02:42:15,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:42:15,074 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2062485479] [2019-11-26 02:42:15,074 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8402c1a8-e859-464a-8b8f-02f3273be613/bin/utaipan/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:42:15,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:42:15,250 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-26 02:42:15,252 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:42:15,276 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:42:15,276 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:42:15,331 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:42:15,332 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2062485479] [2019-11-26 02:42:15,332 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813888819] [2019-11-26 02:42:15,332 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8402c1a8-e859-464a-8b8f-02f3273be613/bin/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:42:15,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:42:15,425 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-26 02:42:15,429 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:42:15,440 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:42:15,441 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:42:15,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:42:15,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-11-26 02:42:15,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5] total 8 [2019-11-26 02:42:15,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833850294] [2019-11-26 02:42:15,451 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-26 02:42:15,452 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:42:15,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-26 02:42:15,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-11-26 02:42:15,452 INFO L87 Difference]: Start difference. First operand 109 states and 187 transitions. Second operand 8 states. [2019-11-26 02:42:15,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:42:15,622 INFO L93 Difference]: Finished difference Result 179 states and 327 transitions. [2019-11-26 02:42:15,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-26 02:42:15,622 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2019-11-26 02:42:15,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:42:15,624 INFO L225 Difference]: With dead ends: 179 [2019-11-26 02:42:15,624 INFO L226 Difference]: Without dead ends: 179 [2019-11-26 02:42:15,625 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2019-11-26 02:42:15,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2019-11-26 02:42:15,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2019-11-26 02:42:15,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2019-11-26 02:42:15,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 327 transitions. [2019-11-26 02:42:15,640 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 327 transitions. Word has length 41 [2019-11-26 02:42:15,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:42:15,640 INFO L462 AbstractCegarLoop]: Abstraction has 179 states and 327 transitions. [2019-11-26 02:42:15,640 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-26 02:42:15,641 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 327 transitions. [2019-11-26 02:42:15,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-11-26 02:42:15,643 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:42:15,644 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1] [2019-11-26 02:42:16,049 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:42:16,051 INFO L410 AbstractCegarLoop]: === Iteration 5 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:42:16,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:42:16,053 INFO L82 PathProgramCache]: Analyzing trace with hash -1173491039, now seen corresponding path program 2 times [2019-11-26 02:42:16,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:42:16,054 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [355237465] [2019-11-26 02:42:16,055 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8402c1a8-e859-464a-8b8f-02f3273be613/bin/utaipan/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:42:16,263 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-26 02:42:16,264 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-26 02:42:16,266 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-26 02:42:16,268 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:42:16,346 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:42:16,347 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:42:16,642 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:42:16,642 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [355237465] [2019-11-26 02:42:16,643 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189707826] [2019-11-26 02:42:16,643 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8402c1a8-e859-464a-8b8f-02f3273be613/bin/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:42:16,714 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-26 02:42:16,715 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-26 02:42:16,716 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-26 02:42:16,718 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:42:16,726 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:42:16,727 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:42:16,736 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:42:16,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-11-26 02:42:16,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9] total 16 [2019-11-26 02:42:16,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671336529] [2019-11-26 02:42:16,738 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-26 02:42:16,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:42:16,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-26 02:42:16,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2019-11-26 02:42:16,739 INFO L87 Difference]: Start difference. First operand 179 states and 327 transitions. Second operand 16 states. [2019-11-26 02:42:17,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:42:17,657 INFO L93 Difference]: Finished difference Result 319 states and 607 transitions. [2019-11-26 02:42:17,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-11-26 02:42:17,657 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 51 [2019-11-26 02:42:17,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:42:17,660 INFO L225 Difference]: With dead ends: 319 [2019-11-26 02:42:17,660 INFO L226 Difference]: Without dead ends: 319 [2019-11-26 02:42:17,661 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=244, Invalid=626, Unknown=0, NotChecked=0, Total=870 [2019-11-26 02:42:17,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2019-11-26 02:42:17,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2019-11-26 02:42:17,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2019-11-26 02:42:17,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 607 transitions. [2019-11-26 02:42:17,688 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 607 transitions. Word has length 51 [2019-11-26 02:42:17,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:42:17,689 INFO L462 AbstractCegarLoop]: Abstraction has 319 states and 607 transitions. [2019-11-26 02:42:17,689 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-26 02:42:17,689 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 607 transitions. [2019-11-26 02:42:17,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-11-26 02:42:17,698 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:42:17,698 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 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, 1, 1] [2019-11-26 02:42:18,099 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:42:18,100 INFO L410 AbstractCegarLoop]: === Iteration 6 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:42:18,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:42:18,101 INFO L82 PathProgramCache]: Analyzing trace with hash -1097188191, now seen corresponding path program 3 times [2019-11-26 02:42:18,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:42:18,102 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [974232609] [2019-11-26 02:42:18,103 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8402c1a8-e859-464a-8b8f-02f3273be613/bin/utaipan/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:42:18,268 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-11-26 02:42:18,268 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-26 02:42:18,269 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-26 02:42:18,272 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:42:18,364 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2019-11-26 02:42:18,365 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:42:18,551 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2019-11-26 02:42:18,551 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [974232609] [2019-11-26 02:42:18,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:42:18,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2019-11-26 02:42:18,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643526613] [2019-11-26 02:42:18,552 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-26 02:42:18,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:42:18,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-26 02:42:18,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2019-11-26 02:42:18,552 INFO L87 Difference]: Start difference. First operand 319 states and 607 transitions. Second operand 11 states. [2019-11-26 02:42:18,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:42:18,794 INFO L93 Difference]: Finished difference Result 315 states and 601 transitions. [2019-11-26 02:42:18,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-26 02:42:18,794 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 71 [2019-11-26 02:42:18,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:42:18,795 INFO L225 Difference]: With dead ends: 315 [2019-11-26 02:42:18,795 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:42:18,795 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 134 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2019-11-26 02:42:18,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:42:18,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:42:18,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:42:18,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:42:18,796 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 71 [2019-11-26 02:42:18,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:42:18,796 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:42:18,796 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-26 02:42:18,796 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:42:18,797 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:42:18,997 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:42:19,001 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-26 02:42:19,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:42:19 BasicIcfg [2019-11-26 02:42:19,004 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:42:19,004 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:42:19,004 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:42:19,005 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:42:19,006 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:42:13" (3/4) ... [2019-11-26 02:42:19,011 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:42:19,023 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread [2019-11-26 02:42:19,034 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2019-11-26 02:42:19,034 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:42:19,035 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-26 02:42:19,072 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8402c1a8-e859-464a-8b8f-02f3273be613/bin/utaipan/witness.graphml [2019-11-26 02:42:19,073 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:42:19,074 INFO L168 Benchmark]: Toolchain (without parser) took 6658.71 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 221.8 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -157.5 MB). Peak memory consumption was 64.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:42:19,074 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:42:19,075 INFO L168 Benchmark]: CACSL2BoogieTranslator took 642.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -165.4 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:42:19,075 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.18 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 02:42:19,076 INFO L168 Benchmark]: Boogie Preprocessor took 45.42 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 02:42:19,076 INFO L168 Benchmark]: RCFGBuilder took 443.95 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: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:42:19,076 INFO L168 Benchmark]: TraceAbstraction took 5390.21 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 68.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -17.1 MB). Peak memory consumption was 51.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:42:19,077 INFO L168 Benchmark]: Witness Printer took 68.50 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:42:19,079 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 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 642.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -165.4 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 63.18 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 45.42 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 443.95 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: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5390.21 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 68.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -17.1 MB). Peak memory consumption was 51.1 MB. Max. memory is 11.5 GB. * Witness Printer took 68.50 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 695]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 695]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 695]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 695]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 98 locations, 4 error locations. Result: SAFE, OverallTime: 5.2s, OverallIterations: 6, TraceHistogramMax: 7, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 389 SDtfs, 707 SDslu, 1388 SDs, 0 SdLazy, 250 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 721 GetRequests, 665 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=319occurred in iteration=5, 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, 6 MinimizatonAttempts, 21 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 355 NumberOfCodeBlocks, 330 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 694 ConstructedInterpolants, 0 QuantifiedInterpolants, 63510 SizeOfPredicates, 25 NumberOfNonLiveVariables, 514 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 16 InterpolantComputations, 8 PerfectInterpolantSequences, 224/300 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...