./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_cb53bf1c-040b-4710-bf34-a5d9018848d3/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_cb53bf1c-040b-4710-bf34-a5d9018848d3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cb53bf1c-040b-4710-bf34-a5d9018848d3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cb53bf1c-040b-4710-bf34-a5d9018848d3/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_cb53bf1c-040b-4710-bf34-a5d9018848d3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cb53bf1c-040b-4710-bf34-a5d9018848d3/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1c6c05365b181d4eacf1f0a2b19f094d722c4a6a .................................................................................................................................................................................................................................................................................................. 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_cb53bf1c-040b-4710-bf34-a5d9018848d3/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_cb53bf1c-040b-4710-bf34-a5d9018848d3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cb53bf1c-040b-4710-bf34-a5d9018848d3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cb53bf1c-040b-4710-bf34-a5d9018848d3/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_cb53bf1c-040b-4710-bf34-a5d9018848d3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cb53bf1c-040b-4710-bf34-a5d9018848d3/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1c6c05365b181d4eacf1f0a2b19f094d722c4a6a ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 04:51:49,768 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 04:51:49,769 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 04:51:49,782 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 04:51:49,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 04:51:49,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 04:51:49,785 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 04:51:49,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 04:51:49,788 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 04:51:49,789 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 04:51:49,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 04:51:49,791 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 04:51:49,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 04:51:49,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 04:51:49,793 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 04:51:49,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 04:51:49,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 04:51:49,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 04:51:49,799 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 04:51:49,801 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 04:51:49,803 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 04:51:49,804 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 04:51:49,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 04:51:49,805 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 04:51:49,808 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 04:51:49,808 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 04:51:49,808 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 04:51:49,813 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 04:51:49,814 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 04:51:49,815 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 04:51:49,816 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 04:51:49,816 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 04:51:49,817 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 04:51:49,818 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 04:51:49,821 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 04:51:49,821 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 04:51:49,822 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 04:51:49,822 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 04:51:49,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 04:51:49,825 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 04:51:49,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 04:51:49,827 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cb53bf1c-040b-4710-bf34-a5d9018848d3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 04:51:49,845 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 04:51:49,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 04:51:49,846 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 04:51:49,846 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 04:51:49,847 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 04:51:49,847 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 04:51:49,847 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 04:51:49,847 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 04:51:49,848 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 04:51:49,848 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 04:51:49,849 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 04:51:49,850 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 04:51:49,850 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 04:51:49,850 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 04:51:49,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 04:51:49,850 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 04:51:49,851 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 04:51:49,851 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 04:51:49,851 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 04:51:49,851 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 04:51:49,852 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 04:51:49,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 04:51:49,852 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 04:51:49,852 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 04:51:49,852 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 04:51:49,853 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 04:51:49,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 04:51:49,853 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 04:51:49,853 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_cb53bf1c-040b-4710-bf34-a5d9018848d3/bin/uautomizer 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 -> Automizer 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 -> 1c6c05365b181d4eacf1f0a2b19f094d722c4a6a [2019-11-20 04:51:50,004 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 04:51:50,017 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 04:51:50,024 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 04:51:50,025 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 04:51:50,027 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 04:51:50,027 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cb53bf1c-040b-4710-bf34-a5d9018848d3/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2019-11-20 04:51:50,076 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cb53bf1c-040b-4710-bf34-a5d9018848d3/bin/uautomizer/data/98687cc86/4e20135fff3f4c3cadfece86107846ed/FLAGf7aecb38f [2019-11-20 04:51:50,451 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 04:51:50,451 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cb53bf1c-040b-4710-bf34-a5d9018848d3/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2019-11-20 04:51:50,457 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cb53bf1c-040b-4710-bf34-a5d9018848d3/bin/uautomizer/data/98687cc86/4e20135fff3f4c3cadfece86107846ed/FLAGf7aecb38f [2019-11-20 04:51:50,467 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cb53bf1c-040b-4710-bf34-a5d9018848d3/bin/uautomizer/data/98687cc86/4e20135fff3f4c3cadfece86107846ed [2019-11-20 04:51:50,469 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 04:51:50,470 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 04:51:50,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 04:51:50,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 04:51:50,474 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 04:51:50,475 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:51:50" (1/1) ... [2019-11-20 04:51:50,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5195dffe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:51:50, skipping insertion in model container [2019-11-20 04:51:50,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:51:50" (1/1) ... [2019-11-20 04:51:50,484 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 04:51:50,506 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 04:51:50,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:51:50,761 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 04:51:50,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:51:50,825 INFO L192 MainTranslator]: Completed translation [2019-11-20 04:51:50,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:51:50 WrapperNode [2019-11-20 04:51:50,826 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 04:51:50,826 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 04:51:50,827 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 04:51:50,827 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 04:51:50,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:51:50" (1/1) ... [2019-11-20 04:51:50,845 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:51:50" (1/1) ... [2019-11-20 04:51:50,880 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 04:51:50,880 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 04:51:50,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 04:51:50,880 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 04:51:50,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:51:50" (1/1) ... [2019-11-20 04:51:50,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:51:50" (1/1) ... [2019-11-20 04:51:50,896 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:51:50" (1/1) ... [2019-11-20 04:51:50,896 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:51:50" (1/1) ... [2019-11-20 04:51:50,921 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:51:50" (1/1) ... [2019-11-20 04:51:50,927 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:51:50" (1/1) ... [2019-11-20 04:51:50,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:51:50" (1/1) ... [2019-11-20 04:51:50,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 04:51:50,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 04:51:50,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 04:51:50,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 04:51:50,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:51:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cb53bf1c-040b-4710-bf34-a5d9018848d3/bin/uautomizer/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 [2019-11-20 04:51:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 04:51:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 04:51:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-20 04:51:51,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-20 04:51:51,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 04:51:51,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 04:51:51,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 04:51:51,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-20 04:51:51,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 04:51:51,661 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 04:51:51,661 INFO L285 CfgBuilder]: Removed 22 assume(true) statements. [2019-11-20 04:51:51,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:51:51 BoogieIcfgContainer [2019-11-20 04:51:51,662 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 04:51:51,663 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 04:51:51,663 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 04:51:51,666 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 04:51:51,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 04:51:50" (1/3) ... [2019-11-20 04:51:51,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c9897a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:51:51, skipping insertion in model container [2019-11-20 04:51:51,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:51:50" (2/3) ... [2019-11-20 04:51:51,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c9897a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:51:51, skipping insertion in model container [2019-11-20 04:51:51,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:51:51" (3/3) ... [2019-11-20 04:51:51,669 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121b.c [2019-11-20 04:51:51,678 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 04:51:51,684 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 04:51:51,694 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 04:51:51,714 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 04:51:51,715 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 04:51:51,715 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 04:51:51,715 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 04:51:51,715 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 04:51:51,715 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 04:51:51,716 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 04:51:51,716 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 04:51:51,731 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2019-11-20 04:51:51,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 04:51:51,736 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:51:51,737 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:51:51,737 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:51:51,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:51:51,742 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2019-11-20 04:51:51,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:51:51,750 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604178796] [2019-11-20 04:51:51,750 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:51:51,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:51:51,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:51:51,865 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604178796] [2019-11-20 04:51:51,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:51:51,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 04:51:51,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524453990] [2019-11-20 04:51:51,870 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 04:51:51,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:51:51,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 04:51:51,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 04:51:51,882 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 2 states. [2019-11-20 04:51:51,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:51:51,902 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2019-11-20 04:51:51,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 04:51:51,903 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-20 04:51:51,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:51:51,912 INFO L225 Difference]: With dead ends: 108 [2019-11-20 04:51:51,912 INFO L226 Difference]: Without dead ends: 52 [2019-11-20 04:51:51,915 INFO L630 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 [2019-11-20 04:51:51,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-11-20 04:51:51,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-11-20 04:51:51,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-11-20 04:51:51,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2019-11-20 04:51:51,951 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2019-11-20 04:51:51,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:51:51,951 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2019-11-20 04:51:51,951 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 04:51:51,951 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2019-11-20 04:51:51,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 04:51:51,952 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:51:51,952 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:51:51,952 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:51:51,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:51:51,953 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2019-11-20 04:51:51,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:51:51,953 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085501444] [2019-11-20 04:51:51,953 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:51:52,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:51:52,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:51:52,108 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:51:52,108 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 04:51:52,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 04:51:52 BoogieIcfgContainer [2019-11-20 04:51:52,162 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 04:51:52,162 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 04:51:52,162 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 04:51:52,163 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 04:51:52,163 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:51:51" (3/4) ... [2019-11-20 04:51:52,166 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 04:51:52,166 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 04:51:52,168 INFO L168 Benchmark]: Toolchain (without parser) took 1697.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -111.1 MB). Peak memory consumption was 32.5 MB. Max. memory is 11.5 GB. [2019-11-20 04:51:52,169 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:51:52,169 INFO L168 Benchmark]: CACSL2BoogieTranslator took 355.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -183.2 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-20 04:51:52,170 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.26 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. [2019-11-20 04:51:52,170 INFO L168 Benchmark]: Boogie Preprocessor took 68.47 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 04:51:52,171 INFO L168 Benchmark]: RCFGBuilder took 713.73 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: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. [2019-11-20 04:51:52,172 INFO L168 Benchmark]: TraceAbstraction took 498.71 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2019-11-20 04:51:52,172 INFO L168 Benchmark]: Witness Printer took 4.09 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. [2019-11-20 04:51:52,184 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 355.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -183.2 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.26 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 68.47 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 713.73 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: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 498.71 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.09 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 175]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 44, overapproximation of someUnaryDOUBLEoperation at line 170, overapproximation of bitwiseAnd at line 39, overapproximation of someBinaryArithmeticDOUBLEoperation at line 45, overapproximation of someBinaryDOUBLEComparisonOperation at line 16, overapproximation of bitwiseXor at line 40. Possible FailurePath: [L18-L21] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={3:0}] [L169] double x = __VERIFIER_nondet_double(); [L170] double y = -0.0; [L24] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L25] __uint32_t lx, ly, lz; VAL [one_fmod=1, Zero_fmod={3:0}] [L28] ieee_double_shape_type ew_u; [L29] ew_u.value = (x) [L30] EXPR ew_u.parts.msw [L30] (hx) = ew_u.parts.msw [L31] EXPR ew_u.parts.lsw [L31] (lx) = ew_u.parts.lsw [L34] ieee_double_shape_type ew_u; [L35] ew_u.value = (y) [L36] EXPR ew_u.parts.msw [L36] (hy) = ew_u.parts.msw [L37] EXPR ew_u.parts.lsw [L37] (ly) = ew_u.parts.lsw [L39] sx = hx & 0x80000000 [L40] hx ^= sx [L41] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={3:0}] [L43-L44] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L45] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={3:0}] [L171] double res = fmod_double(x, y); [L16] return x != x; VAL [one_fmod=1, Zero_fmod={3:0}] [L174] COND TRUE !isnan_double(res) [L175] __VERIFIER_error() VAL [one_fmod=1, Zero_fmod={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 81 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 04:51:53,887 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 04:51:53,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 04:51:53,899 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 04:51:53,900 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 04:51:53,901 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 04:51:53,902 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 04:51:53,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 04:51:53,906 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 04:51:53,906 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 04:51:53,907 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 04:51:53,908 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 04:51:53,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 04:51:53,910 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 04:51:53,911 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 04:51:53,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 04:51:53,912 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 04:51:53,913 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 04:51:53,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 04:51:53,917 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 04:51:53,919 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 04:51:53,920 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 04:51:53,921 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 04:51:53,921 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 04:51:53,924 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 04:51:53,924 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 04:51:53,925 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 04:51:53,926 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 04:51:53,926 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 04:51:53,927 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 04:51:53,927 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 04:51:53,928 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 04:51:53,929 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 04:51:53,930 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 04:51:53,931 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 04:51:53,931 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 04:51:53,932 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 04:51:53,932 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 04:51:53,932 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 04:51:53,933 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 04:51:53,934 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 04:51:53,935 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cb53bf1c-040b-4710-bf34-a5d9018848d3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 04:51:53,948 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 04:51:53,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 04:51:53,950 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 04:51:53,950 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 04:51:53,950 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 04:51:53,950 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 04:51:53,951 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 04:51:53,951 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 04:51:53,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 04:51:53,951 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 04:51:53,951 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 04:51:53,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 04:51:53,952 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 04:51:53,952 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 04:51:53,952 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 04:51:53,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 04:51:53,953 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 04:51:53,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 04:51:53,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 04:51:53,954 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 04:51:53,954 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 04:51:53,954 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 04:51:53,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 04:51:53,955 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 04:51:53,955 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 04:51:53,955 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 04:51:53,955 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 04:51:53,956 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 04:51:53,956 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 04:51:53,956 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 04:51:53,956 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_cb53bf1c-040b-4710-bf34-a5d9018848d3/bin/uautomizer 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 -> Automizer 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 -> 1c6c05365b181d4eacf1f0a2b19f094d722c4a6a [2019-11-20 04:51:54,247 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 04:51:54,257 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 04:51:54,260 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 04:51:54,261 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 04:51:54,262 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 04:51:54,262 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cb53bf1c-040b-4710-bf34-a5d9018848d3/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2019-11-20 04:51:54,310 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cb53bf1c-040b-4710-bf34-a5d9018848d3/bin/uautomizer/data/a880aa1da/5356631e758c466e895e476f4a9fb3c9/FLAG25166f283 [2019-11-20 04:51:54,724 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 04:51:54,725 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cb53bf1c-040b-4710-bf34-a5d9018848d3/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2019-11-20 04:51:54,730 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cb53bf1c-040b-4710-bf34-a5d9018848d3/bin/uautomizer/data/a880aa1da/5356631e758c466e895e476f4a9fb3c9/FLAG25166f283 [2019-11-20 04:51:54,742 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cb53bf1c-040b-4710-bf34-a5d9018848d3/bin/uautomizer/data/a880aa1da/5356631e758c466e895e476f4a9fb3c9 [2019-11-20 04:51:54,744 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 04:51:54,745 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 04:51:54,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 04:51:54,747 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 04:51:54,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 04:51:54,750 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:51:54" (1/1) ... [2019-11-20 04:51:54,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a81bfb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:51:54, skipping insertion in model container [2019-11-20 04:51:54,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:51:54" (1/1) ... [2019-11-20 04:51:54,760 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 04:51:54,784 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 04:51:54,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:51:54,975 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 04:51:55,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:51:55,110 INFO L192 MainTranslator]: Completed translation [2019-11-20 04:51:55,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:51:55 WrapperNode [2019-11-20 04:51:55,111 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 04:51:55,111 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 04:51:55,111 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 04:51:55,112 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 04:51:55,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:51:55" (1/1) ... [2019-11-20 04:51:55,142 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:51:55" (1/1) ... [2019-11-20 04:51:55,187 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 04:51:55,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 04:51:55,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 04:51:55,188 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 04:51:55,197 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:51:55" (1/1) ... [2019-11-20 04:51:55,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:51:55" (1/1) ... [2019-11-20 04:51:55,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:51:55" (1/1) ... [2019-11-20 04:51:55,215 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:51:55" (1/1) ... [2019-11-20 04:51:55,228 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:51:55" (1/1) ... [2019-11-20 04:51:55,245 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:51:55" (1/1) ... [2019-11-20 04:51:55,249 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:51:55" (1/1) ... [2019-11-20 04:51:55,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 04:51:55,254 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 04:51:55,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 04:51:55,255 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 04:51:55,262 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:51:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cb53bf1c-040b-4710-bf34-a5d9018848d3/bin/uautomizer/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 [2019-11-20 04:51:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-20 04:51:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-20 04:51:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 04:51:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-11-20 04:51:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 04:51:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 04:51:55,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 04:51:55,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 04:51:55,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 04:51:58,734 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 04:51:58,734 INFO L285 CfgBuilder]: Removed 22 assume(true) statements. [2019-11-20 04:51:58,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:51:58 BoogieIcfgContainer [2019-11-20 04:51:58,735 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 04:51:58,736 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 04:51:58,736 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 04:51:58,739 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 04:51:58,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 04:51:54" (1/3) ... [2019-11-20 04:51:58,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f45cce6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:51:58, skipping insertion in model container [2019-11-20 04:51:58,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:51:55" (2/3) ... [2019-11-20 04:51:58,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f45cce6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:51:58, skipping insertion in model container [2019-11-20 04:51:58,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:51:58" (3/3) ... [2019-11-20 04:51:58,742 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121b.c [2019-11-20 04:51:58,749 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 04:51:58,755 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 04:51:58,765 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 04:51:58,788 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 04:51:58,788 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 04:51:58,788 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 04:51:58,788 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 04:51:58,789 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 04:51:58,789 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 04:51:58,789 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 04:51:58,789 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 04:51:58,803 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2019-11-20 04:51:58,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 04:51:58,808 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:51:58,809 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:51:58,810 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:51:58,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:51:58,815 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2019-11-20 04:51:58,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:51:58,826 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [255306941] [2019-11-20 04:51:58,826 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cb53bf1c-040b-4710-bf34-a5d9018848d3/bin/uautomizer/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 [2019-11-20 04:51:59,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:51:59,773 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-20 04:51:59,777 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:51:59,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:51:59,789 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:51:59,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:51:59,798 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [255306941] [2019-11-20 04:51:59,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:51:59,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 04:51:59,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516753705] [2019-11-20 04:51:59,804 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 04:51:59,805 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:51:59,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 04:51:59,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 04:51:59,816 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 2 states. [2019-11-20 04:51:59,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:51:59,854 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2019-11-20 04:51:59,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 04:51:59,855 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-20 04:51:59,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:51:59,863 INFO L225 Difference]: With dead ends: 108 [2019-11-20 04:51:59,864 INFO L226 Difference]: Without dead ends: 52 [2019-11-20 04:51:59,867 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 04:51:59,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-11-20 04:51:59,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-11-20 04:51:59,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-11-20 04:51:59,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2019-11-20 04:51:59,896 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2019-11-20 04:51:59,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:51:59,897 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2019-11-20 04:51:59,897 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 04:51:59,897 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2019-11-20 04:51:59,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 04:51:59,898 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:51:59,898 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:52:00,099 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-20 04:52:00,100 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:52:00,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:52:00,101 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2019-11-20 04:52:00,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:52:00,102 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [148060062] [2019-11-20 04:52:00,102 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cb53bf1c-040b-4710-bf34-a5d9018848d3/bin/uautomizer/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 [2019-11-20 04:52:02,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:52:02,740 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 04:52:02,743 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:52:12,456 WARN L191 SmtUtils]: Spent 3.00 s on a formula simplification that was a NOOP. DAG size: 9 [2019-11-20 04:52:12,458 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:52:24,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:52:24,491 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:52:36,524 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_double_~x c_ULTIMATE.start_fmod_double_~y))) (fp.div roundNearestTiesToEven .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2019-11-20 04:52:37,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:52:37,486 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [148060062] [2019-11-20 04:52:37,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:52:37,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-20 04:52:37,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480433985] [2019-11-20 04:52:37,488 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 04:52:37,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:52:37,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 04:52:37,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=52, Unknown=3, NotChecked=14, Total=90 [2019-11-20 04:52:37,491 INFO L87 Difference]: Start difference. First operand 52 states and 78 transitions. Second operand 10 states. [2019-11-20 04:52:41,665 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_double_~x c_ULTIMATE.start_fmod_double_~y))) (fp.div roundNearestTiesToEven .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) (= c_ULTIMATE.start_fmod_double_~y (fp.neg (_ +zero 11 53)))) is different from true [2019-11-20 04:53:08,272 WARN L191 SmtUtils]: Spent 13.52 s on a formula simplification. DAG size of input: 15 DAG size of output: 13 [2019-11-20 04:53:27,895 WARN L191 SmtUtils]: Spent 14.69 s on a formula simplification. DAG size of input: 17 DAG size of output: 15 [2019-11-20 04:53:27,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:53:27,949 INFO L93 Difference]: Finished difference Result 57 states and 82 transitions. [2019-11-20 04:53:27,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 04:53:27,950 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2019-11-20 04:53:27,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:53:27,951 INFO L225 Difference]: With dead ends: 57 [2019-11-20 04:53:27,951 INFO L226 Difference]: Without dead ends: 52 [2019-11-20 04:53:27,952 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 76.8s TimeCoverageRelationStatistics Valid=38, Invalid=75, Unknown=5, NotChecked=38, Total=156 [2019-11-20 04:53:27,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-11-20 04:53:27,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-11-20 04:53:27,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-11-20 04:53:27,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2019-11-20 04:53:27,960 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 12 [2019-11-20 04:53:27,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:53:27,961 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2019-11-20 04:53:27,961 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 04:53:27,961 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2019-11-20 04:53:27,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-20 04:53:27,962 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:53:27,962 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:53:28,177 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-20 04:53:28,177 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:53:28,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:53:28,178 INFO L82 PathProgramCache]: Analyzing trace with hash -910533226, now seen corresponding path program 1 times [2019-11-20 04:53:28,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 04:53:28,179 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1131875838] [2019-11-20 04:53:28,179 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cb53bf1c-040b-4710-bf34-a5d9018848d3/bin/uautomizer/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 [2019-11-20 04:53:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:53:28,369 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 04:53:28,372 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:53:28,433 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2019-11-20 04:53:28,453 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 04:53:28,456 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 27 [2019-11-20 04:53:28,457 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 04:53:28,474 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:53:28,484 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:53:28,484 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 12 [2019-11-20 04:53:28,485 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-20 04:53:28,488 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:53:28,488 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:53:28,504 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:53:28,505 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 04:53:28,505 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:47, output treesize:19 [2019-11-20 04:53:28,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:53:28,554 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 04:53:28,625 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:53:28,625 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 50 treesize of output 48 [2019-11-20 04:53:28,665 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:53:28,666 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 31 treesize of output 35 [2019-11-20 04:53:28,666 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 04:53:28,684 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:53:28,694 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:53:28,695 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 19 [2019-11-20 04:53:28,696 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-20 04:53:28,706 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:53:28,707 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:53:28,725 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:53:28,725 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 04:53:28,726 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:60, output treesize:20 [2019-11-20 04:53:28,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:53:28,765 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1131875838] [2019-11-20 04:53:28,766 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:53:28,766 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-20 04:53:28,766 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700116224] [2019-11-20 04:53:28,766 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 04:53:28,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 04:53:28,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 04:53:28,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-20 04:53:28,767 INFO L87 Difference]: Start difference. First operand 52 states and 77 transitions. Second operand 8 states. [2019-11-20 04:53:28,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:53:28,902 INFO L93 Difference]: Finished difference Result 52 states and 77 transitions. [2019-11-20 04:53:28,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 04:53:28,902 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2019-11-20 04:53:28,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:53:28,903 INFO L225 Difference]: With dead ends: 52 [2019-11-20 04:53:28,903 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 04:53:28,903 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2019-11-20 04:53:28,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 04:53:28,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 04:53:28,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 04:53:28,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 04:53:28,904 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-11-20 04:53:28,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:53:28,905 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 04:53:28,905 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 04:53:28,905 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 04:53:28,905 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 04:53:29,106 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-20 04:53:29,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 04:53:34,565 WARN L191 SmtUtils]: Spent 5.41 s on a formula simplification that was a NOOP. DAG size: 13 [2019-11-20 04:53:39,472 WARN L191 SmtUtils]: Spent 4.90 s on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2019-11-20 04:53:39,477 INFO L444 ceAbstractionStarter]: For program point L118(lines 118 119) no Hoare annotation was computed. [2019-11-20 04:53:39,477 INFO L444 ceAbstractionStarter]: For program point L118-2(lines 23 161) no Hoare annotation was computed. [2019-11-20 04:53:39,477 INFO L444 ceAbstractionStarter]: For program point L69-2(lines 69 70) no Hoare annotation was computed. [2019-11-20 04:53:39,477 INFO L440 ceAbstractionStarter]: At program point L69-3(lines 69 70) the Hoare annotation is: false [2019-11-20 04:53:39,477 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 04:53:39,478 INFO L444 ceAbstractionStarter]: For program point L152(lines 152 157) no Hoare annotation was computed. [2019-11-20 04:53:39,478 INFO L444 ceAbstractionStarter]: For program point L152-1(lines 140 159) no Hoare annotation was computed. [2019-11-20 04:53:39,478 INFO L444 ceAbstractionStarter]: For program point L152-2(lines 152 157) no Hoare annotation was computed. [2019-11-20 04:53:39,478 INFO L444 ceAbstractionStarter]: For program point L53(lines 23 161) no Hoare annotation was computed. [2019-11-20 04:53:39,478 INFO L444 ceAbstractionStarter]: For program point L120-1(lines 23 161) no Hoare annotation was computed. [2019-11-20 04:53:39,478 INFO L444 ceAbstractionStarter]: For program point L54(lines 54 60) no Hoare annotation was computed. [2019-11-20 04:53:39,478 INFO L444 ceAbstractionStarter]: For program point L104(lines 104 105) no Hoare annotation was computed. [2019-11-20 04:53:39,478 INFO L444 ceAbstractionStarter]: For program point L104-2(lines 101 115) no Hoare annotation was computed. [2019-11-20 04:53:39,478 INFO L444 ceAbstractionStarter]: For program point L55-2(lines 55 56) no Hoare annotation was computed. [2019-11-20 04:53:39,478 INFO L440 ceAbstractionStarter]: At program point L55-3(lines 55 56) the Hoare annotation is: false [2019-11-20 04:53:39,479 INFO L440 ceAbstractionStarter]: At program point L106-1(lines 101 115) the Hoare annotation is: false [2019-11-20 04:53:39,479 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 04:53:39,479 INFO L444 ceAbstractionStarter]: For program point L91(lines 91 97) no Hoare annotation was computed. [2019-11-20 04:53:39,479 INFO L444 ceAbstractionStarter]: For program point L91-2(lines 87 98) no Hoare annotation was computed. [2019-11-20 04:53:39,479 INFO L444 ceAbstractionStarter]: For program point L58-2(lines 58 59) no Hoare annotation was computed. [2019-11-20 04:53:39,479 INFO L440 ceAbstractionStarter]: At program point L58-3(lines 58 59) the Hoare annotation is: false [2019-11-20 04:53:39,479 INFO L444 ceAbstractionStarter]: For program point L174(lines 174 177) no Hoare annotation was computed. [2019-11-20 04:53:39,480 INFO L444 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2019-11-20 04:53:39,480 INFO L444 ceAbstractionStarter]: For program point L142(lines 142 151) no Hoare annotation was computed. [2019-11-20 04:53:39,480 INFO L444 ceAbstractionStarter]: For program point L43(lines 43 45) no Hoare annotation was computed. [2019-11-20 04:53:39,480 INFO L444 ceAbstractionStarter]: For program point L27-1(lines 27 32) no Hoare annotation was computed. [2019-11-20 04:53:39,480 INFO L440 ceAbstractionStarter]: At program point L27-2(lines 27 32) the Hoare annotation is: (= ULTIMATE.start_fmod_double_~y (fp.neg (_ +zero 11 53))) [2019-11-20 04:53:39,480 INFO L444 ceAbstractionStarter]: For program point L110(lines 110 111) no Hoare annotation was computed. [2019-11-20 04:53:39,481 INFO L440 ceAbstractionStarter]: At program point L160(lines 23 161) the Hoare annotation is: (not (fp.eq |ULTIMATE.start_fmod_double_#res| |ULTIMATE.start_fmod_double_#res|)) [2019-11-20 04:53:39,481 INFO L440 ceAbstractionStarter]: At program point L127-2(lines 127 131) the Hoare annotation is: false [2019-11-20 04:53:39,481 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 04:53:39,481 INFO L444 ceAbstractionStarter]: For program point L127-3(lines 23 161) no Hoare annotation was computed. [2019-11-20 04:53:39,481 INFO L444 ceAbstractionStarter]: For program point L145(lines 145 151) no Hoare annotation was computed. [2019-11-20 04:53:39,481 INFO L444 ceAbstractionStarter]: For program point L79(lines 79 85) no Hoare annotation was computed. [2019-11-20 04:53:39,481 INFO L444 ceAbstractionStarter]: For program point L46(lines 46 51) no Hoare annotation was computed. [2019-11-20 04:53:39,482 INFO L444 ceAbstractionStarter]: For program point L79-2(lines 23 161) no Hoare annotation was computed. [2019-11-20 04:53:39,482 INFO L444 ceAbstractionStarter]: For program point L46-2(lines 23 161) no Hoare annotation was computed. [2019-11-20 04:53:39,482 INFO L447 ceAbstractionStarter]: At program point L179(lines 163 180) the Hoare annotation is: true [2019-11-20 04:53:39,482 INFO L444 ceAbstractionStarter]: For program point L47(lines 47 48) no Hoare annotation was computed. [2019-11-20 04:53:39,482 INFO L444 ceAbstractionStarter]: For program point L64(lines 23 161) no Hoare annotation was computed. [2019-11-20 04:53:39,482 INFO L444 ceAbstractionStarter]: For program point L65(lines 65 71) no Hoare annotation was computed. [2019-11-20 04:53:39,482 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 04:53:39,483 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 175) no Hoare annotation was computed. [2019-11-20 04:53:39,483 INFO L444 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2019-11-20 04:53:39,483 INFO L440 ceAbstractionStarter]: At program point L16(line 16) the Hoare annotation is: (and (exists ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (= (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_double_~x (fp.neg (_ +zero 11 53))))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_fmod_double_#res|)) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|)) [2019-11-20 04:53:39,483 INFO L444 ceAbstractionStarter]: For program point L132(lines 132 159) no Hoare annotation was computed. [2019-11-20 04:53:39,483 INFO L444 ceAbstractionStarter]: For program point L33(lines 33 38) no Hoare annotation was computed. [2019-11-20 04:53:39,483 INFO L444 ceAbstractionStarter]: For program point L33-1(lines 23 161) no Hoare annotation was computed. [2019-11-20 04:53:39,484 INFO L444 ceAbstractionStarter]: For program point L66-2(lines 66 67) no Hoare annotation was computed. [2019-11-20 04:53:39,484 INFO L444 ceAbstractionStarter]: For program point L33-2(lines 33 38) no Hoare annotation was computed. [2019-11-20 04:53:39,484 INFO L440 ceAbstractionStarter]: At program point L66-3(lines 66 67) the Hoare annotation is: false [2019-11-20 04:53:39,484 INFO L444 ceAbstractionStarter]: For program point L134-1(lines 134 139) no Hoare annotation was computed. [2019-11-20 04:53:39,484 INFO L444 ceAbstractionStarter]: For program point L101-1(lines 101 115) no Hoare annotation was computed. [2019-11-20 04:53:39,484 INFO L440 ceAbstractionStarter]: At program point L134-2(lines 134 139) the Hoare annotation is: false [2019-11-20 04:53:39,484 INFO L444 ceAbstractionStarter]: For program point L101-3(lines 101 115) no Hoare annotation was computed. [2019-11-20 04:53:39,500 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 04:53:39,501 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 04:53:39,501 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2019-11-20 04:53:39,501 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 04:53:39,502 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2019-11-20 04:53:39,503 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 04:53:39,503 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 04:53:39,503 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2019-11-20 04:53:39,504 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 04:53:39,504 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2019-11-20 04:53:39,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 04:53:39 BoogieIcfgContainer [2019-11-20 04:53:39,507 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 04:53:39,507 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 04:53:39,507 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 04:53:39,508 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 04:53:39,508 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:51:58" (3/4) ... [2019-11-20 04:53:39,511 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 04:53:39,524 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-20 04:53:39,524 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-20 04:53:39,525 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 04:53:39,565 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_cb53bf1c-040b-4710-bf34-a5d9018848d3/bin/uautomizer/witness.graphml [2019-11-20 04:53:39,565 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 04:53:39,567 INFO L168 Benchmark]: Toolchain (without parser) took 104821.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 961.8 MB in the beginning and 954.0 MB in the end (delta: 7.8 MB). Peak memory consumption was 144.1 MB. Max. memory is 11.5 GB. [2019-11-20 04:53:39,567 INFO L168 Benchmark]: CDTParser took 0.23 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. [2019-11-20 04:53:39,568 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 961.8 MB in the beginning and 1.1 GB in the end (delta: -164.2 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-11-20 04:53:39,568 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.05 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. [2019-11-20 04:53:39,569 INFO L168 Benchmark]: Boogie Preprocessor took 66.55 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-20 04:53:39,569 INFO L168 Benchmark]: RCFGBuilder took 3481.05 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: 41.8 MB). Peak memory consumption was 41.8 MB. Max. memory is 11.5 GB. [2019-11-20 04:53:39,570 INFO L168 Benchmark]: TraceAbstraction took 100770.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 954.0 MB in the end (delta: 123.6 MB). Peak memory consumption was 123.6 MB. Max. memory is 11.5 GB. [2019-11-20 04:53:39,570 INFO L168 Benchmark]: Witness Printer took 58.52 ms. Allocated memory is still 1.2 GB. Free memory is still 954.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:53:39,572 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 364.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 961.8 MB in the beginning and 1.1 GB in the end (delta: -164.2 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 76.05 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 66.55 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 3481.05 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: 41.8 MB). Peak memory consumption was 41.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 100770.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 954.0 MB in the end (delta: 123.6 MB). Peak memory consumption was 123.6 MB. Max. memory is 11.5 GB. * Witness Printer took 58.52 ms. Allocated memory is still 1.2 GB. Free memory is still 954.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 175]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(\result, \result) - InvariantResult [Line: 16]: Loop Invariant [2019-11-20 04:53:39,580 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 04:53:39,580 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 04:53:39,580 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2019-11-20 04:53:39,581 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 04:53:39,581 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2019-11-20 04:53:39,581 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 04:53:39,582 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 04:53:39,582 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2019-11-20 04:53:39,582 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 04:53:39,582 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] Derived loop invariant: (\exists ULTIMATE.start_fmod_double_~x : C_DOUBLE :: ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start_fmod_double_~x, ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())), ~fp.mul~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start_fmod_double_~x, ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()))) == \result) && 1bv32 == \result - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 1 error locations. Result: SAFE, OverallTime: 100.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 50.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 10.3s, HoareTripleCheckerStatistics: 160 SDtfs, 5 SDslu, 416 SDs, 0 SdLazy, 30 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 2 IntricatePredicates, 2 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 77.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 15 NumberOfFragments, 35 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 24 FormulaSimplificationTreeSizeReductionInter, 10.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.4s SatisfiabilityAnalysisTime, 35.3s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 66 ConstructedInterpolants, 13 QuantifiedInterpolants, 4561 SizeOfPredicates, 16 NumberOfNonLiveVariables, 182 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...