./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1300_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7291d3dc-bf80-403a-804a-61eac274ec82/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7291d3dc-bf80-403a-804a-61eac274ec82/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7291d3dc-bf80-403a-804a-61eac274ec82/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7291d3dc-bf80-403a-804a-61eac274ec82/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1300_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7291d3dc-bf80-403a-804a-61eac274ec82/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7291d3dc-bf80-403a-804a-61eac274ec82/bin-2019/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 ee5ae4bbae935ee4fc29ea9e50ac81dc390a543f ....................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7291d3dc-bf80-403a-804a-61eac274ec82/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7291d3dc-bf80-403a-804a-61eac274ec82/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7291d3dc-bf80-403a-804a-61eac274ec82/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7291d3dc-bf80-403a-804a-61eac274ec82/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1300_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7291d3dc-bf80-403a-804a-61eac274ec82/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7291d3dc-bf80-403a-804a-61eac274ec82/bin-2019/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 ee5ae4bbae935ee4fc29ea9e50ac81dc390a543f ............................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output. --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 00:40:04,083 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 00:40:04,084 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 00:40:04,089 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 00:40:04,090 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 00:40:04,090 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 00:40:04,091 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 00:40:04,091 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 00:40:04,092 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 00:40:04,092 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 00:40:04,093 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 00:40:04,093 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 00:40:04,093 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 00:40:04,094 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 00:40:04,094 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 00:40:04,095 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 00:40:04,095 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 00:40:04,096 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 00:40:04,097 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 00:40:04,098 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 00:40:04,098 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 00:40:04,099 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 00:40:04,100 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 00:40:04,100 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 00:40:04,100 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 00:40:04,100 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 00:40:04,101 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 00:40:04,101 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 00:40:04,102 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 00:40:04,102 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 00:40:04,102 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 00:40:04,103 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 00:40:04,103 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 00:40:04,103 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 00:40:04,103 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 00:40:04,104 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 00:40:04,104 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7291d3dc-bf80-403a-804a-61eac274ec82/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 00:40:04,111 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 00:40:04,111 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 00:40:04,111 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 00:40:04,111 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 00:40:04,112 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 00:40:04,112 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 00:40:04,112 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 00:40:04,112 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 00:40:04,112 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 00:40:04,112 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 00:40:04,112 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 00:40:04,112 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 00:40:04,112 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 00:40:04,113 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 00:40:04,113 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 00:40:04,113 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 00:40:04,113 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 00:40:04,113 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 00:40:04,113 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 00:40:04,113 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 00:40:04,113 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 00:40:04,113 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 00:40:04,113 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 00:40:04,113 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 00:40:04,114 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 00:40:04,114 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 00:40:04,114 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 00:40:04,114 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 00:40:04,114 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 00:40:04,114 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 00:40:04,114 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 00:40:04,114 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 00:40:04,114 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 00:40:04,114 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 00:40:04,115 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 00:40:04,115 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 00:40:04,115 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_7291d3dc-bf80-403a-804a-61eac274ec82/bin-2019/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 -> ee5ae4bbae935ee4fc29ea9e50ac81dc390a543f [2018-12-09 00:40:04,131 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 00:40:04,138 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 00:40:04,140 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 00:40:04,141 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 00:40:04,141 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 00:40:04,142 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7291d3dc-bf80-403a-804a-61eac274ec82/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1300_true-unreach-call.c [2018-12-09 00:40:04,176 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7291d3dc-bf80-403a-804a-61eac274ec82/bin-2019/utaipan/data/3dc5a4df3/ce02a14300264f80ade404a2d6fe781c/FLAG0fe35de41 [2018-12-09 00:40:04,594 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 00:40:04,594 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7291d3dc-bf80-403a-804a-61eac274ec82/sv-benchmarks/c/float-newlib/double_req_bl_1300_true-unreach-call.c [2018-12-09 00:40:04,598 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7291d3dc-bf80-403a-804a-61eac274ec82/bin-2019/utaipan/data/3dc5a4df3/ce02a14300264f80ade404a2d6fe781c/FLAG0fe35de41 [2018-12-09 00:40:04,606 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7291d3dc-bf80-403a-804a-61eac274ec82/bin-2019/utaipan/data/3dc5a4df3/ce02a14300264f80ade404a2d6fe781c [2018-12-09 00:40:04,608 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 00:40:04,609 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 00:40:04,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 00:40:04,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 00:40:04,611 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 00:40:04,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:40:04" (1/1) ... [2018-12-09 00:40:04,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d0accd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:40:04, skipping insertion in model container [2018-12-09 00:40:04,614 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:40:04" (1/1) ... [2018-12-09 00:40:04,618 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 00:40:04,628 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 00:40:04,722 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:40:04,724 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 00:40:04,739 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:40:04,752 INFO L195 MainTranslator]: Completed translation [2018-12-09 00:40:04,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:40:04 WrapperNode [2018-12-09 00:40:04,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 00:40:04,753 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 00:40:04,753 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 00:40:04,753 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 00:40:04,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:40:04" (1/1) ... [2018-12-09 00:40:04,764 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:40:04" (1/1) ... [2018-12-09 00:40:04,769 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 00:40:04,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 00:40:04,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 00:40:04,769 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 00:40:04,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:40:04" (1/1) ... [2018-12-09 00:40:04,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:40:04" (1/1) ... [2018-12-09 00:40:04,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:40:04" (1/1) ... [2018-12-09 00:40:04,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:40:04" (1/1) ... [2018-12-09 00:40:04,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:40:04" (1/1) ... [2018-12-09 00:40:04,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:40:04" (1/1) ... [2018-12-09 00:40:04,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:40:04" (1/1) ... [2018-12-09 00:40:04,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 00:40:04,819 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 00:40:04,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 00:40:04,819 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 00:40:04,819 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:40:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7291d3dc-bf80-403a-804a-61eac274ec82/bin-2019/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 [2018-12-09 00:40:04,850 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2018-12-09 00:40:04,850 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2018-12-09 00:40:04,850 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-12-09 00:40:04,850 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-12-09 00:40:04,850 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-12-09 00:40:04,850 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-12-09 00:40:04,850 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 00:40:04,851 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 00:40:04,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 00:40:04,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 00:40:04,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-09 00:40:04,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 00:40:04,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 00:40:04,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 00:40:04,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 00:40:04,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 00:40:04,996 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 00:40:04,996 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-09 00:40:04,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:40:04 BoogieIcfgContainer [2018-12-09 00:40:04,996 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 00:40:04,997 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 00:40:04,997 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 00:40:04,999 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 00:40:04,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 12:40:04" (1/3) ... [2018-12-09 00:40:04,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e3fa52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:40:04, skipping insertion in model container [2018-12-09 00:40:04,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:40:04" (2/3) ... [2018-12-09 00:40:05,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e3fa52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:40:04, skipping insertion in model container [2018-12-09 00:40:05,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:40:04" (3/3) ... [2018-12-09 00:40:05,001 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1300_true-unreach-call.c [2018-12-09 00:40:05,006 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 00:40:05,010 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 00:40:05,018 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 00:40:05,037 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 00:40:05,037 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 00:40:05,037 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 00:40:05,037 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 00:40:05,037 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 00:40:05,037 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 00:40:05,037 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 00:40:05,037 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 00:40:05,047 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-12-09 00:40:05,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-09 00:40:05,050 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:40:05,051 INFO L402 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] [2018-12-09 00:40:05,052 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:40:05,055 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:40:05,055 INFO L82 PathProgramCache]: Analyzing trace with hash -2080830514, now seen corresponding path program 1 times [2018-12-09 00:40:05,056 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:40:05,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:40:05,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:40:05,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:40:05,083 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:40:05,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:40:05,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:40:05,134 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:40:05,134 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 00:40:05,134 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:40:05,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 00:40:05,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 00:40:05,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 00:40:05,145 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2018-12-09 00:40:05,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:40:05,158 INFO L93 Difference]: Finished difference Result 66 states and 79 transitions. [2018-12-09 00:40:05,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 00:40:05,159 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-12-09 00:40:05,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:40:05,163 INFO L225 Difference]: With dead ends: 66 [2018-12-09 00:40:05,163 INFO L226 Difference]: Without dead ends: 32 [2018-12-09 00:40:05,165 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 00:40:05,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-12-09 00:40:05,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-12-09 00:40:05,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-12-09 00:40:05,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2018-12-09 00:40:05,186 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 24 [2018-12-09 00:40:05,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:40:05,186 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2018-12-09 00:40:05,186 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 00:40:05,186 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2018-12-09 00:40:05,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-09 00:40:05,187 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:40:05,187 INFO L402 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] [2018-12-09 00:40:05,187 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:40:05,187 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:40:05,187 INFO L82 PathProgramCache]: Analyzing trace with hash 52000231, now seen corresponding path program 1 times [2018-12-09 00:40:05,187 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:40:05,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:40:05,188 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:40:05,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:40:05,188 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:40:05,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:40:05,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:40:05,247 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:40:05,247 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 00:40:05,247 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:40:05,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 00:40:05,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 00:40:05,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 00:40:05,248 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 3 states. [2018-12-09 00:40:05,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:40:05,258 INFO L93 Difference]: Finished difference Result 44 states and 43 transitions. [2018-12-09 00:40:05,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 00:40:05,258 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-12-09 00:40:05,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:40:05,259 INFO L225 Difference]: With dead ends: 44 [2018-12-09 00:40:05,259 INFO L226 Difference]: Without dead ends: 32 [2018-12-09 00:40:05,260 INFO L631 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 [2018-12-09 00:40:05,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-12-09 00:40:05,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-12-09 00:40:05,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-12-09 00:40:05,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 31 transitions. [2018-12-09 00:40:05,262 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 31 transitions. Word has length 26 [2018-12-09 00:40:05,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:40:05,263 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 31 transitions. [2018-12-09 00:40:05,263 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 00:40:05,263 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 31 transitions. [2018-12-09 00:40:05,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-09 00:40:05,263 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:40:05,263 INFO L402 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] [2018-12-09 00:40:05,263 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:40:05,264 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:40:05,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1291078367, now seen corresponding path program 1 times [2018-12-09 00:40:05,264 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:40:05,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:40:05,264 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:40:05,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:40:05,265 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:40:05,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:40:05,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:40:05,337 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 00:40:05,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 12:40:05 BoogieIcfgContainer [2018-12-09 00:40:05,356 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 00:40:05,356 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 00:40:05,356 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 00:40:05,356 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 00:40:05,357 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:40:04" (3/4) ... [2018-12-09 00:40:05,359 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 00:40:05,359 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 00:40:05,360 INFO L168 Benchmark]: Toolchain (without parser) took 751.70 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 953.5 MB in the beginning and 1.0 GB in the end (delta: -81.8 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. [2018-12-09 00:40:05,361 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:40:05,361 INFO L168 Benchmark]: CACSL2BoogieTranslator took 143.61 ms. Allocated memory is still 1.0 GB. Free memory was 953.5 MB in the beginning and 941.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-12-09 00:40:05,361 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.93 ms. Allocated memory is still 1.0 GB. Free memory was 941.6 MB in the beginning and 936.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 00:40:05,362 INFO L168 Benchmark]: Boogie Preprocessor took 49.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -164.3 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-12-09 00:40:05,362 INFO L168 Benchmark]: RCFGBuilder took 177.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2018-12-09 00:40:05,363 INFO L168 Benchmark]: TraceAbstraction took 359.20 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 45.6 MB). Peak memory consumption was 45.6 MB. Max. memory is 11.5 GB. [2018-12-09 00:40:05,363 INFO L168 Benchmark]: Witness Printer took 3.11 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:40:05,365 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 143.61 ms. Allocated memory is still 1.0 GB. Free memory was 953.5 MB in the beginning and 941.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.93 ms. Allocated memory is still 1.0 GB. Free memory was 941.6 MB in the beginning and 936.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 49.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -164.3 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 177.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 359.20 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 45.6 MB). Peak memory consumption was 45.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.11 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 59]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 25, overapproximation of bitwiseAnd at line 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 58, overapproximation of to_real at line 55. Possible FailurePath: [L50] double x = __VERIFIER_nondet_double(); [L53] CALL, EXPR isinf_double(x) VAL [\old(x)=10737418245] [L17] __int32_t hx, lx; VAL [\old(x)=10737418245, x=10737418245] [L19] ieee_double_shape_type ew_u; [L20] ew_u.value = (x) [L21] EXPR ew_u.parts.msw [L21] (hx) = ew_u.parts.msw [L22] EXPR ew_u.parts.lsw [L22] (lx) = ew_u.parts.lsw [L24] hx &= 0x7fffffff [L25] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L26] hx = 0x7ff00000 - hx [L27] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=10737418245, \result=0, hx=2146435073, lx=-2147483648, x=10737418245] [L53] RET, EXPR isinf_double(x) VAL [isinf_double(x)=0, x=10737418245] [L53] !isinf_double(x) && !isnan_double(x) VAL [!isinf_double(x) && !isnan_double(x)=1, isinf_double(x)=0, x=10737418245] [L53] CALL, EXPR isnan_double(x) VAL [\old(x)=10737418245] [L31] return x != x; VAL [\old(x)=10737418245, \result=0, x=10737418245] [L53] RET, EXPR isnan_double(x) VAL [!isinf_double(x) && !isnan_double(x)=1, isinf_double(x)=0, isnan_double(x)=0, x=10737418245] [L53] !isinf_double(x) && !isnan_double(x) VAL [!isinf_double(x) && !isnan_double(x)=1, isinf_double(x)=0, isnan_double(x)=0, x=10737418245] [L53] COND TRUE !isinf_double(x) && !isnan_double(x) [L55] CALL, EXPR isfinite_double(x) VAL [\old(x)=10737418245] [L34] __int32_t hx; VAL [\old(x)=10737418245, x=10737418245] [L36] ieee_double_shape_type gh_u; [L37] gh_u.value = (x) [L38] EXPR gh_u.parts.msw [L38] (hx) = gh_u.parts.msw [L40] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [\old(x)=10737418245, \result=3, hx=-2147483648, x=10737418245] [L55] RET, EXPR isfinite_double(x) VAL [isfinite_double(x)=3, x=10737418245] [L55] double res = isfinite_double(x); [L58] COND TRUE res == 0.0 VAL [x=10737418245] [L59] __VERIFIER_error() VAL [x=10737418245] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 37 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 70 SDtfs, 0 SDslu, 27 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 81 NumberOfCodeBlocks, 81 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 1179 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-09 00:40:06,637 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 00:40:06,638 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 00:40:06,645 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-12-09 00:40:06,649 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 00:40:06,649 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 00:40:06,650 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 00:40:06,650 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 00:40:06,651 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 00:40:06,651 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 00:40:06,652 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 00:40:06,653 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 00:40:06,654 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 00:40:06,654 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 00:40:06,655 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 00:40:06,656 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 00:40:06,656 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 00:40:06,656 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 00:40:06,657 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 00:40:06,657 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 00:40:06,658 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 00:40:06,658 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 00:40:06,659 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 00:40:06,659 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 00:40:06,659 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 00:40:06,659 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 00:40:06,660 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 00:40:06,660 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 00:40:06,660 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 00:40:06,661 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7291d3dc-bf80-403a-804a-61eac274ec82/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 00:40:06,668 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 00:40:06,668 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 00:40:06,669 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 00:40:06,669 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 00:40:06,669 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 00:40:06,669 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 00:40:06,669 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 00:40:06,669 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 00:40:06,670 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 00:40:06,670 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 00:40:06,670 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 00:40:06,670 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 00:40:06,670 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 00:40:06,670 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 00:40:06,671 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 00:40:06,671 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 00:40:06,671 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 00:40:06,671 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 00:40:06,671 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 00:40:06,671 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 00:40:06,671 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 00:40:06,671 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 00:40:06,672 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 00:40:06,672 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 00:40:06,672 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 00:40:06,672 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 00:40:06,672 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 00:40:06,672 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 00:40:06,672 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 00:40:06,673 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 00:40:06,673 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 00:40:06,673 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 00:40:06,673 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 00:40:06,673 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 00:40:06,673 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 00:40:06,673 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_7291d3dc-bf80-403a-804a-61eac274ec82/bin-2019/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 -> ee5ae4bbae935ee4fc29ea9e50ac81dc390a543f [2018-12-09 00:40:06,692 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 00:40:06,701 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 00:40:06,704 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 00:40:06,705 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 00:40:06,705 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 00:40:06,706 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7291d3dc-bf80-403a-804a-61eac274ec82/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1300_true-unreach-call.c [2018-12-09 00:40:06,746 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7291d3dc-bf80-403a-804a-61eac274ec82/bin-2019/utaipan/data/18ac7ec90/d83b40bee05c48279f973962382a3e6e/FLAG34b1629c8 [2018-12-09 00:40:07,096 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 00:40:07,096 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7291d3dc-bf80-403a-804a-61eac274ec82/sv-benchmarks/c/float-newlib/double_req_bl_1300_true-unreach-call.c [2018-12-09 00:40:07,100 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7291d3dc-bf80-403a-804a-61eac274ec82/bin-2019/utaipan/data/18ac7ec90/d83b40bee05c48279f973962382a3e6e/FLAG34b1629c8 [2018-12-09 00:40:07,479 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7291d3dc-bf80-403a-804a-61eac274ec82/bin-2019/utaipan/data/18ac7ec90/d83b40bee05c48279f973962382a3e6e [2018-12-09 00:40:07,481 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 00:40:07,482 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 00:40:07,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 00:40:07,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 00:40:07,485 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 00:40:07,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:40:07" (1/1) ... [2018-12-09 00:40:07,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cdf94f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:40:07, skipping insertion in model container [2018-12-09 00:40:07,487 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:40:07" (1/1) ... [2018-12-09 00:40:07,491 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 00:40:07,501 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 00:40:07,591 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:40:07,594 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 00:40:07,609 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:40:07,626 INFO L195 MainTranslator]: Completed translation [2018-12-09 00:40:07,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:40:07 WrapperNode [2018-12-09 00:40:07,626 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 00:40:07,627 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 00:40:07,627 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 00:40:07,627 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 00:40:07,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:40:07" (1/1) ... [2018-12-09 00:40:07,639 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:40:07" (1/1) ... [2018-12-09 00:40:07,643 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 00:40:07,643 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 00:40:07,643 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 00:40:07,643 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 00:40:07,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:40:07" (1/1) ... [2018-12-09 00:40:07,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:40:07" (1/1) ... [2018-12-09 00:40:07,651 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:40:07" (1/1) ... [2018-12-09 00:40:07,651 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:40:07" (1/1) ... [2018-12-09 00:40:07,657 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:40:07" (1/1) ... [2018-12-09 00:40:07,692 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:40:07" (1/1) ... [2018-12-09 00:40:07,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:40:07" (1/1) ... [2018-12-09 00:40:07,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 00:40:07,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 00:40:07,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 00:40:07,695 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 00:40:07,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:40:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7291d3dc-bf80-403a-804a-61eac274ec82/bin-2019/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 [2018-12-09 00:40:07,732 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2018-12-09 00:40:07,733 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2018-12-09 00:40:07,733 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-12-09 00:40:07,733 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-12-09 00:40:07,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-12-09 00:40:07,733 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-12-09 00:40:07,733 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-12-09 00:40:07,733 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 00:40:07,733 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 00:40:07,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 00:40:07,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 00:40:07,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 00:40:07,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-09 00:40:07,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 00:40:07,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 00:40:07,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 00:40:07,830 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 00:40:07,889 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 00:40:07,943 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 00:40:07,943 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-09 00:40:07,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:40:07 BoogieIcfgContainer [2018-12-09 00:40:07,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 00:40:07,944 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 00:40:07,944 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 00:40:07,946 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 00:40:07,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 12:40:07" (1/3) ... [2018-12-09 00:40:07,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e3f7ab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:40:07, skipping insertion in model container [2018-12-09 00:40:07,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:40:07" (2/3) ... [2018-12-09 00:40:07,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e3f7ab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:40:07, skipping insertion in model container [2018-12-09 00:40:07,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:40:07" (3/3) ... [2018-12-09 00:40:07,947 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1300_true-unreach-call.c [2018-12-09 00:40:07,953 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 00:40:07,957 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 00:40:07,965 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 00:40:07,982 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 00:40:07,982 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 00:40:07,982 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 00:40:07,982 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 00:40:07,982 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 00:40:07,982 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 00:40:07,982 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 00:40:07,982 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 00:40:07,982 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 00:40:07,992 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-12-09 00:40:07,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-09 00:40:07,995 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:40:07,996 INFO L402 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] [2018-12-09 00:40:07,997 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:40:08,000 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:40:08,000 INFO L82 PathProgramCache]: Analyzing trace with hash -2080830514, now seen corresponding path program 1 times [2018-12-09 00:40:08,002 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 00:40:08,003 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7291d3dc-bf80-403a-804a-61eac274ec82/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-09 00:40:08,007 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:40:08,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:40:08,053 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:40:08,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:40:08,065 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 00:40:08,073 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:40:08,073 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 00:40:08,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 00:40:08,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 00:40:08,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 00:40:08,084 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2018-12-09 00:40:08,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:40:08,096 INFO L93 Difference]: Finished difference Result 66 states and 79 transitions. [2018-12-09 00:40:08,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 00:40:08,097 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-12-09 00:40:08,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:40:08,102 INFO L225 Difference]: With dead ends: 66 [2018-12-09 00:40:08,102 INFO L226 Difference]: Without dead ends: 32 [2018-12-09 00:40:08,104 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 00:40:08,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-12-09 00:40:08,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-12-09 00:40:08,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-12-09 00:40:08,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2018-12-09 00:40:08,126 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 24 [2018-12-09 00:40:08,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:40:08,126 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2018-12-09 00:40:08,126 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 00:40:08,126 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2018-12-09 00:40:08,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-09 00:40:08,127 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:40:08,127 INFO L402 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] [2018-12-09 00:40:08,128 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:40:08,128 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:40:08,128 INFO L82 PathProgramCache]: Analyzing trace with hash 52000231, now seen corresponding path program 1 times [2018-12-09 00:40:08,128 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 00:40:08,129 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7291d3dc-bf80-403a-804a-61eac274ec82/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-09 00:40:08,132 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:40:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:40:08,194 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:40:08,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:40:08,205 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 00:40:08,212 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:40:08,213 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 00:40:08,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 00:40:08,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 00:40:08,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 00:40:08,215 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 3 states. [2018-12-09 00:40:08,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:40:08,226 INFO L93 Difference]: Finished difference Result 44 states and 43 transitions. [2018-12-09 00:40:08,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 00:40:08,227 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-12-09 00:40:08,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:40:08,228 INFO L225 Difference]: With dead ends: 44 [2018-12-09 00:40:08,228 INFO L226 Difference]: Without dead ends: 32 [2018-12-09 00:40:08,229 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 00:40:08,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-12-09 00:40:08,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-12-09 00:40:08,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-12-09 00:40:08,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 31 transitions. [2018-12-09 00:40:08,233 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 31 transitions. Word has length 26 [2018-12-09 00:40:08,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:40:08,233 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 31 transitions. [2018-12-09 00:40:08,233 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 00:40:08,234 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 31 transitions. [2018-12-09 00:40:08,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-09 00:40:08,234 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:40:08,235 INFO L402 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] [2018-12-09 00:40:08,235 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:40:08,235 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:40:08,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1291078367, now seen corresponding path program 1 times [2018-12-09 00:40:08,236 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 00:40:08,236 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7291d3dc-bf80-403a-804a-61eac274ec82/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-09 00:40:08,239 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:40:08,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:40:08,321 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:40:08,350 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 00:40:08,351 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 00:40:08,353 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 00:40:08,353 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 00:40:08,357 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 98 [2018-12-09 00:40:08,459 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 00:40:08,460 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 00:40:08,474 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 59 [2018-12-09 00:40:08,475 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 00:40:08,501 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2018-12-09 00:40:08,532 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2018-12-09 00:40:08,533 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 00:40:08,546 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 00:40:08,567 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2018-12-09 00:40:08,573 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 4 [2018-12-09 00:40:08,574 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-09 00:40:08,577 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 00:40:08,587 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 00:40:08,608 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-09 00:40:08,608 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:82, output treesize:23 [2018-12-09 00:40:09,212 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 40 [2018-12-09 00:40:14,509 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2018-12-09 00:40:14,511 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:225) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.checkSat(ManagedScript.java:141) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:84) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:928) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:767) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:339) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:575) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 39 more [2018-12-09 00:40:14,516 INFO L168 Benchmark]: Toolchain (without parser) took 7034.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 943.4 MB in the beginning and 956.8 MB in the end (delta: -13.4 MB). Peak memory consumption was 119.7 MB. Max. memory is 11.5 GB. [2018-12-09 00:40:14,518 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:40:14,518 INFO L168 Benchmark]: CACSL2BoogieTranslator took 144.31 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 00:40:14,518 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.98 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 00:40:14,519 INFO L168 Benchmark]: Boogie Preprocessor took 51.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -201.1 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. [2018-12-09 00:40:14,519 INFO L168 Benchmark]: RCFGBuilder took 248.50 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: 31.0 MB). Peak memory consumption was 31.0 MB. Max. memory is 11.5 GB. [2018-12-09 00:40:14,519 INFO L168 Benchmark]: TraceAbstraction took 6571.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 956.8 MB in the end (delta: 140.6 MB). Peak memory consumption was 140.6 MB. Max. memory is 11.5 GB. [2018-12-09 00:40:14,521 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 144.31 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.98 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -201.1 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 248.50 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: 31.0 MB). Peak memory consumption was 31.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6571.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 956.8 MB in the end (delta: 140.6 MB). Peak memory consumption was 140.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...