./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e1095ad9-ab3a-426c-9425-4079b91f0166/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e1095ad9-ab3a-426c-9425-4079b91f0166/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e1095ad9-ab3a-426c-9425-4079b91f0166/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e1095ad9-ab3a-426c-9425-4079b91f0166/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e1095ad9-ab3a-426c-9425-4079b91f0166/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e1095ad9-ab3a-426c-9425-4079b91f0166/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fa5701cbf2aecb18d72b6e5744b88307065d31ab ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_e1095ad9-ab3a-426c-9425-4079b91f0166/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e1095ad9-ab3a-426c-9425-4079b91f0166/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e1095ad9-ab3a-426c-9425-4079b91f0166/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e1095ad9-ab3a-426c-9425-4079b91f0166/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e1095ad9-ab3a-426c-9425-4079b91f0166/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e1095ad9-ab3a-426c-9425-4079b91f0166/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fa5701cbf2aecb18d72b6e5744b88307065d31ab .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 03:01:30,584 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 03:01:30,586 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 03:01:30,600 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 03:01:30,601 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 03:01:30,602 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 03:01:30,603 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 03:01:30,611 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 03:01:30,615 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 03:01:30,619 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 03:01:30,620 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 03:01:30,621 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 03:01:30,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 03:01:30,623 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 03:01:30,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 03:01:30,625 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 03:01:30,625 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 03:01:30,626 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 03:01:30,628 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 03:01:30,632 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 03:01:30,635 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 03:01:30,638 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 03:01:30,639 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 03:01:30,639 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 03:01:30,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 03:01:30,642 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 03:01:30,642 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 03:01:30,644 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 03:01:30,644 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 03:01:30,645 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 03:01:30,645 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 03:01:30,646 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 03:01:30,647 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 03:01:30,647 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 03:01:30,648 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 03:01:30,648 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 03:01:30,649 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 03:01:30,649 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 03:01:30,649 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 03:01:30,650 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 03:01:30,651 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 03:01:30,652 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e1095ad9-ab3a-426c-9425-4079b91f0166/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 03:01:30,665 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 03:01:30,665 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 03:01:30,666 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 03:01:30,666 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 03:01:30,667 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 03:01:30,667 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 03:01:30,667 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 03:01:30,667 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 03:01:30,668 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 03:01:30,668 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 03:01:30,668 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 03:01:30,668 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 03:01:30,669 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 03:01:30,669 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 03:01:30,669 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 03:01:30,670 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 03:01:30,670 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 03:01:30,670 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 03:01:30,670 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 03:01:30,671 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 03:01:30,671 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 03:01:30,671 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 03:01:30,671 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 03:01:30,672 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 03:01:30,672 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 03:01:30,672 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 03:01:30,672 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 03:01:30,673 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 03:01:30,673 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 03:01:30,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 03:01:30,673 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 03:01:30,674 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 03:01:30,674 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 03:01:30,674 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 03:01:30,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 03:01:30,675 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 03:01:30,675 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 03:01:30,675 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e1095ad9-ab3a-426c-9425-4079b91f0166/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa5701cbf2aecb18d72b6e5744b88307065d31ab [2019-11-26 03:01:30,820 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 03:01:30,838 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 03:01:30,842 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 03:01:30,847 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 03:01:30,848 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 03:01:30,848 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e1095ad9-ab3a-426c-9425-4079b91f0166/bin/utaipan/../../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c [2019-11-26 03:01:30,907 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e1095ad9-ab3a-426c-9425-4079b91f0166/bin/utaipan/data/842a43022/4403c9a8a4a64a34a0dd01c21c59a499/FLAGe9df2b6fc [2019-11-26 03:01:31,301 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 03:01:31,301 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e1095ad9-ab3a-426c-9425-4079b91f0166/sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c [2019-11-26 03:01:31,308 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e1095ad9-ab3a-426c-9425-4079b91f0166/bin/utaipan/data/842a43022/4403c9a8a4a64a34a0dd01c21c59a499/FLAGe9df2b6fc [2019-11-26 03:01:31,318 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e1095ad9-ab3a-426c-9425-4079b91f0166/bin/utaipan/data/842a43022/4403c9a8a4a64a34a0dd01c21c59a499 [2019-11-26 03:01:31,320 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 03:01:31,321 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 03:01:31,322 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 03:01:31,322 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 03:01:31,325 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 03:01:31,326 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 03:01:31" (1/1) ... [2019-11-26 03:01:31,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c2b217b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:31, skipping insertion in model container [2019-11-26 03:01:31,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 03:01:31" (1/1) ... [2019-11-26 03:01:31,335 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 03:01:31,359 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 03:01:31,673 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 03:01:31,676 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 03:01:31,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 03:01:31,722 INFO L205 MainTranslator]: Completed translation [2019-11-26 03:01:31,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:31 WrapperNode [2019-11-26 03:01:31,723 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 03:01:31,724 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 03:01:31,724 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 03:01:31,724 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 03:01:31,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:31" (1/1) ... [2019-11-26 03:01:31,749 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:31" (1/1) ... [2019-11-26 03:01:31,774 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 03:01:31,775 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 03:01:31,775 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 03:01:31,775 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 03:01:31,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:31" (1/1) ... [2019-11-26 03:01:31,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:31" (1/1) ... [2019-11-26 03:01:31,783 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:31" (1/1) ... [2019-11-26 03:01:31,784 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:31" (1/1) ... [2019-11-26 03:01:31,790 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:31" (1/1) ... [2019-11-26 03:01:31,797 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:31" (1/1) ... [2019-11-26 03:01:31,799 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:31" (1/1) ... [2019-11-26 03:01:31,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 03:01:31,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 03:01:31,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 03:01:31,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 03:01:31,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1095ad9-ab3a-426c-9425-4079b91f0166/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 03:01:31,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 03:01:31,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 03:01:32,507 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 03:01:32,507 INFO L284 CfgBuilder]: Removed 34 assume(true) statements. [2019-11-26 03:01:32,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 03:01:32 BoogieIcfgContainer [2019-11-26 03:01:32,509 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 03:01:32,509 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 03:01:32,510 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 03:01:32,512 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 03:01:32,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 03:01:31" (1/3) ... [2019-11-26 03:01:32,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e39f4e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 03:01:32, skipping insertion in model container [2019-11-26 03:01:32,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:31" (2/3) ... [2019-11-26 03:01:32,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e39f4e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 03:01:32, skipping insertion in model container [2019-11-26 03:01:32,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 03:01:32" (3/3) ... [2019-11-26 03:01:32,515 INFO L109 eAbstractionObserver]: Analyzing ICFG soft_float_4-3a.c.cil.c [2019-11-26 03:01:32,524 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 03:01:32,530 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2019-11-26 03:01:32,540 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-11-26 03:01:32,561 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 03:01:32,561 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 03:01:32,562 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 03:01:32,562 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 03:01:32,562 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 03:01:32,562 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 03:01:32,562 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 03:01:32,563 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 03:01:32,577 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states. [2019-11-26 03:01:32,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-26 03:01:32,582 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 03:01:32,582 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 03:01:32,583 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 03:01:32,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 03:01:32,587 INFO L82 PathProgramCache]: Analyzing trace with hash -478280060, now seen corresponding path program 1 times [2019-11-26 03:01:32,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 03:01:32,593 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176845898] [2019-11-26 03:01:32,594 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 03:01:32,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 03:01:32,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 03:01:32,921 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176845898] [2019-11-26 03:01:32,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 03:01:32,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-26 03:01:32,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717244585] [2019-11-26 03:01:32,930 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-26 03:01:32,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 03:01:32,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-26 03:01:32,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-26 03:01:32,945 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 7 states. [2019-11-26 03:01:33,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 03:01:33,239 INFO L93 Difference]: Finished difference Result 206 states and 300 transitions. [2019-11-26 03:01:33,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-26 03:01:33,241 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2019-11-26 03:01:33,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 03:01:33,252 INFO L225 Difference]: With dead ends: 206 [2019-11-26 03:01:33,253 INFO L226 Difference]: Without dead ends: 128 [2019-11-26 03:01:33,256 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-26 03:01:33,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2019-11-26 03:01:33,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 90. [2019-11-26 03:01:33,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2019-11-26 03:01:33,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 122 transitions. [2019-11-26 03:01:33,326 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 122 transitions. Word has length 10 [2019-11-26 03:01:33,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 03:01:33,326 INFO L462 AbstractCegarLoop]: Abstraction has 90 states and 122 transitions. [2019-11-26 03:01:33,327 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-26 03:01:33,327 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 122 transitions. [2019-11-26 03:01:33,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-26 03:01:33,329 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 03:01:33,329 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 03:01:33,330 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 03:01:33,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 03:01:33,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1943996300, now seen corresponding path program 1 times [2019-11-26 03:01:33,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 03:01:33,332 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392841234] [2019-11-26 03:01:33,332 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 03:01:33,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 03:01:33,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 03:01:33,701 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392841234] [2019-11-26 03:01:33,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 03:01:33,702 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-26 03:01:33,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753203549] [2019-11-26 03:01:33,703 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-26 03:01:33,703 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 03:01:33,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-26 03:01:33,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-11-26 03:01:33,704 INFO L87 Difference]: Start difference. First operand 90 states and 122 transitions. Second operand 11 states. [2019-11-26 03:01:34,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 03:01:34,432 INFO L93 Difference]: Finished difference Result 135 states and 166 transitions. [2019-11-26 03:01:34,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-26 03:01:34,433 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 13 [2019-11-26 03:01:34,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 03:01:34,434 INFO L225 Difference]: With dead ends: 135 [2019-11-26 03:01:34,434 INFO L226 Difference]: Without dead ends: 127 [2019-11-26 03:01:34,435 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2019-11-26 03:01:34,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2019-11-26 03:01:34,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 88. [2019-11-26 03:01:34,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-11-26 03:01:34,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 118 transitions. [2019-11-26 03:01:34,454 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 118 transitions. Word has length 13 [2019-11-26 03:01:34,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 03:01:34,454 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 118 transitions. [2019-11-26 03:01:34,455 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-26 03:01:34,455 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 118 transitions. [2019-11-26 03:01:34,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-26 03:01:34,456 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 03:01:34,456 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 03:01:34,456 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 03:01:34,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 03:01:34,459 INFO L82 PathProgramCache]: Analyzing trace with hash -1442172679, now seen corresponding path program 1 times [2019-11-26 03:01:34,460 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 03:01:34,460 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893401530] [2019-11-26 03:01:34,461 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 03:01:34,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 03:01:34,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 03:01:34,642 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893401530] [2019-11-26 03:01:34,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 03:01:34,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-26 03:01:34,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573270249] [2019-11-26 03:01:34,644 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 03:01:34,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 03:01:34,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 03:01:34,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-26 03:01:34,644 INFO L87 Difference]: Start difference. First operand 88 states and 118 transitions. Second operand 6 states. [2019-11-26 03:01:34,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 03:01:34,816 INFO L93 Difference]: Finished difference Result 135 states and 161 transitions. [2019-11-26 03:01:34,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-26 03:01:34,818 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-11-26 03:01:34,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 03:01:34,819 INFO L225 Difference]: With dead ends: 135 [2019-11-26 03:01:34,819 INFO L226 Difference]: Without dead ends: 113 [2019-11-26 03:01:34,820 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-26 03:01:34,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-11-26 03:01:34,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 78. [2019-11-26 03:01:34,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-11-26 03:01:34,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 101 transitions. [2019-11-26 03:01:34,838 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 101 transitions. Word has length 14 [2019-11-26 03:01:34,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 03:01:34,838 INFO L462 AbstractCegarLoop]: Abstraction has 78 states and 101 transitions. [2019-11-26 03:01:34,838 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 03:01:34,838 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 101 transitions. [2019-11-26 03:01:34,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-26 03:01:34,840 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 03:01:34,840 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 03:01:34,840 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 03:01:34,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 03:01:34,841 INFO L82 PathProgramCache]: Analyzing trace with hash -1301629257, now seen corresponding path program 1 times [2019-11-26 03:01:34,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 03:01:34,841 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686291944] [2019-11-26 03:01:34,841 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 03:01:34,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 03:01:35,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 03:01:35,072 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686291944] [2019-11-26 03:01:35,073 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 03:01:35,073 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-26 03:01:35,073 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793605500] [2019-11-26 03:01:35,073 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 03:01:35,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 03:01:35,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 03:01:35,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-26 03:01:35,074 INFO L87 Difference]: Start difference. First operand 78 states and 101 transitions. Second operand 6 states. [2019-11-26 03:01:35,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 03:01:35,170 INFO L93 Difference]: Finished difference Result 109 states and 133 transitions. [2019-11-26 03:01:35,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 03:01:35,170 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2019-11-26 03:01:35,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 03:01:35,171 INFO L225 Difference]: With dead ends: 109 [2019-11-26 03:01:35,172 INFO L226 Difference]: Without dead ends: 89 [2019-11-26 03:01:35,172 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-11-26 03:01:35,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-11-26 03:01:35,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 76. [2019-11-26 03:01:35,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-11-26 03:01:35,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 99 transitions. [2019-11-26 03:01:35,179 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 99 transitions. Word has length 16 [2019-11-26 03:01:35,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 03:01:35,179 INFO L462 AbstractCegarLoop]: Abstraction has 76 states and 99 transitions. [2019-11-26 03:01:35,180 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 03:01:35,180 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 99 transitions. [2019-11-26 03:01:35,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-26 03:01:35,181 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 03:01:35,181 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 03:01:35,181 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 03:01:35,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 03:01:35,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1117667873, now seen corresponding path program 1 times [2019-11-26 03:01:35,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 03:01:35,182 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785869848] [2019-11-26 03:01:35,182 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 03:01:35,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 03:01:35,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 03:01:35,612 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785869848] [2019-11-26 03:01:35,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 03:01:35,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-26 03:01:35,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219446402] [2019-11-26 03:01:35,613 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-26 03:01:35,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 03:01:35,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-26 03:01:35,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-11-26 03:01:35,613 INFO L87 Difference]: Start difference. First operand 76 states and 99 transitions. Second operand 10 states. [2019-11-26 03:01:35,819 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2019-11-26 03:01:36,332 WARN L192 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-11-26 03:01:36,756 WARN L192 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-11-26 03:01:36,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 03:01:36,879 INFO L93 Difference]: Finished difference Result 91 states and 113 transitions. [2019-11-26 03:01:36,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-26 03:01:36,879 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2019-11-26 03:01:36,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 03:01:36,880 INFO L225 Difference]: With dead ends: 91 [2019-11-26 03:01:36,880 INFO L226 Difference]: Without dead ends: 73 [2019-11-26 03:01:36,881 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2019-11-26 03:01:36,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2019-11-26 03:01:36,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 66. [2019-11-26 03:01:36,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-11-26 03:01:36,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 83 transitions. [2019-11-26 03:01:36,885 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 83 transitions. Word has length 17 [2019-11-26 03:01:36,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 03:01:36,885 INFO L462 AbstractCegarLoop]: Abstraction has 66 states and 83 transitions. [2019-11-26 03:01:36,886 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-26 03:01:36,886 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 83 transitions. [2019-11-26 03:01:36,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-26 03:01:36,886 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 03:01:36,886 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 03:01:36,887 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 03:01:36,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 03:01:36,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1695763361, now seen corresponding path program 1 times [2019-11-26 03:01:36,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 03:01:36,887 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361488894] [2019-11-26 03:01:36,887 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 03:01:36,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 03:01:37,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 03:01:37,178 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361488894] [2019-11-26 03:01:37,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 03:01:37,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-26 03:01:37,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660582432] [2019-11-26 03:01:37,179 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-26 03:01:37,179 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 03:01:37,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-26 03:01:37,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-11-26 03:01:37,180 INFO L87 Difference]: Start difference. First operand 66 states and 83 transitions. Second operand 9 states. [2019-11-26 03:01:37,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 03:01:37,617 INFO L93 Difference]: Finished difference Result 73 states and 90 transitions. [2019-11-26 03:01:37,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-26 03:01:37,618 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2019-11-26 03:01:37,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 03:01:37,618 INFO L225 Difference]: With dead ends: 73 [2019-11-26 03:01:37,618 INFO L226 Difference]: Without dead ends: 65 [2019-11-26 03:01:37,619 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2019-11-26 03:01:37,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2019-11-26 03:01:37,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 62. [2019-11-26 03:01:37,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-11-26 03:01:37,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 77 transitions. [2019-11-26 03:01:37,623 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 77 transitions. Word has length 17 [2019-11-26 03:01:37,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 03:01:37,623 INFO L462 AbstractCegarLoop]: Abstraction has 62 states and 77 transitions. [2019-11-26 03:01:37,623 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-26 03:01:37,623 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 77 transitions. [2019-11-26 03:01:37,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-26 03:01:37,624 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 03:01:37,624 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 03:01:37,624 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 03:01:37,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 03:01:37,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1958081134, now seen corresponding path program 1 times [2019-11-26 03:01:37,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 03:01:37,625 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565255672] [2019-11-26 03:01:37,625 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 03:01:37,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 03:01:37,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 03:01:37,676 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 03:01:37,676 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 03:01:37,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 03:01:37 BoogieIcfgContainer [2019-11-26 03:01:37,699 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 03:01:37,700 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 03:01:37,700 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 03:01:37,700 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 03:01:37,700 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 03:01:32" (3/4) ... [2019-11-26 03:01:37,704 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-26 03:01:37,704 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 03:01:37,705 INFO L168 Benchmark]: Toolchain (without parser) took 6383.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 943.4 MB in the beginning and 854.5 MB in the end (delta: 88.9 MB). Peak memory consumption was 213.2 MB. Max. memory is 11.5 GB. [2019-11-26 03:01:37,706 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 03:01:37,706 INFO L168 Benchmark]: CACSL2BoogieTranslator took 401.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -175.9 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-26 03:01:37,707 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.80 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. [2019-11-26 03:01:37,707 INFO L168 Benchmark]: Boogie Preprocessor took 28.20 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 03:01:37,708 INFO L168 Benchmark]: RCFGBuilder took 705.56 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: 44.7 MB). Peak memory consumption was 44.7 MB. Max. memory is 11.5 GB. [2019-11-26 03:01:37,708 INFO L168 Benchmark]: TraceAbstraction took 5189.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 854.5 MB in the end (delta: 214.7 MB). Peak memory consumption was 214.7 MB. Max. memory is 11.5 GB. [2019-11-26 03:01:37,708 INFO L168 Benchmark]: Witness Printer took 4.10 ms. Allocated memory is still 1.2 GB. Free memory is still 854.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 03:01:37,711 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 401.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -175.9 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.80 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. * Boogie Preprocessor took 28.20 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 705.56 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: 44.7 MB). Peak memory consumption was 44.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5189.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 854.5 MB in the end (delta: 214.7 MB). Peak memory consumption was 214.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.10 ms. Allocated memory is still 1.2 GB. Free memory is still 854.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 7]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 100, overapproximation of bitwiseAnd at line 98. Possible FailurePath: [L216] unsigned int a ; [L217] unsigned int ma = __VERIFIER_nondet_uint(); [L218] signed char ea = __VERIFIER_nondet_char(); [L219] unsigned int b ; [L220] unsigned int mb = __VERIFIER_nondet_uint(); [L221] signed char eb = __VERIFIER_nondet_char(); [L222] unsigned int r_add1 ; [L223] unsigned int r_add2 ; [L224] unsigned int zero ; [L225] int tmp ; [L226] int tmp___0 ; [L227] int __retres14 ; [L15] unsigned int res ; [L16] unsigned int __retres4 ; [L19] COND TRUE ! m [L20] __retres4 = 0U [L70] return (__retres4); [L231] zero = base2flt(0, 0) [L15] unsigned int res ; [L16] unsigned int __retres4 ; [L19] COND FALSE !(! m) [L25] COND FALSE !(m < 1U << 24U) [L47] COND TRUE 1 [L49] COND FALSE !(m >= 1U << 25U) [L66] m = m & ~ (1U << 24U) [L67] res = m | ((unsigned int )(e + 128) << 24U) [L68] __retres4 = res [L70] return (__retres4); [L232] a = base2flt(ma, ea) [L15] unsigned int res ; [L16] unsigned int __retres4 ; [L19] COND FALSE !(! m) [L25] COND FALSE !(m < 1U << 24U) [L47] COND TRUE 1 [L49] COND FALSE !(m >= 1U << 25U) [L66] m = m & ~ (1U << 24U) [L67] res = m | ((unsigned int )(e + 128) << 24U) [L68] __retres4 = res [L70] return (__retres4); [L233] b = base2flt(mb, eb) [L74] unsigned int res ; [L75] unsigned int ma ; [L76] unsigned int mb ; [L77] unsigned int delta ; [L78] int ea ; [L79] int eb ; [L80] unsigned int tmp ; [L81] unsigned int __retres10 ; [L84] COND FALSE !(a < b) [L91] COND FALSE !(! b) [L98] ma = a & ((1U << 24U) - 1U) [L99] ea = (int )(a >> 24U) - 128 [L100] ma = ma | (1U << 24U) [L101] mb = b & ((1U << 24U) - 1U) [L102] eb = (int )(b >> 24U) - 128 [L103] mb = mb | (1U << 24U) [L6] COND TRUE !(cond) [L7] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 72 locations, 7 error locations. Result: UNSAFE, OverallTime: 5.1s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 472 SDtfs, 354 SDslu, 2319 SDs, 0 SdLazy, 639 SolverSat, 75 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 135 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 9035 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-6b5699a [2019-11-26 03:01:39,483 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 03:01:39,485 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 03:01:39,501 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 03:01:39,502 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 03:01:39,503 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 03:01:39,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 03:01:39,514 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 03:01:39,519 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 03:01:39,522 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 03:01:39,523 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 03:01:39,525 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 03:01:39,525 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 03:01:39,527 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 03:01:39,528 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 03:01:39,530 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 03:01:39,531 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 03:01:39,532 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 03:01:39,534 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 03:01:39,537 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 03:01:39,541 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 03:01:39,545 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 03:01:39,546 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 03:01:39,547 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 03:01:39,550 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 03:01:39,550 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 03:01:39,550 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 03:01:39,552 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 03:01:39,552 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 03:01:39,554 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 03:01:39,554 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 03:01:39,555 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 03:01:39,556 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 03:01:39,557 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 03:01:39,557 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 03:01:39,558 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 03:01:39,558 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 03:01:39,559 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 03:01:39,559 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 03:01:39,559 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 03:01:39,561 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 03:01:39,561 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e1095ad9-ab3a-426c-9425-4079b91f0166/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-11-26 03:01:39,585 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 03:01:39,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 03:01:39,586 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 03:01:39,586 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 03:01:39,587 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 03:01:39,587 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 03:01:39,587 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 03:01:39,587 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 03:01:39,587 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 03:01:39,588 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 03:01:39,588 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 03:01:39,589 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 03:01:39,589 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 03:01:39,589 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 03:01:39,589 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 03:01:39,589 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 03:01:39,590 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-26 03:01:39,590 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-26 03:01:39,590 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-26 03:01:39,590 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 03:01:39,590 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 03:01:39,591 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 03:01:39,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 03:01:39,591 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 03:01:39,591 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 03:01:39,591 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 03:01:39,592 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 03:01:39,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 03:01:39,592 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 03:01:39,592 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 03:01:39,602 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 03:01:39,602 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-11-26 03:01:39,602 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-26 03:01:39,603 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 03:01:39,603 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 03:01:39,603 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_e1095ad9-ab3a-426c-9425-4079b91f0166/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa5701cbf2aecb18d72b6e5744b88307065d31ab [2019-11-26 03:01:39,910 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 03:01:39,925 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 03:01:39,928 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 03:01:39,929 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 03:01:39,930 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 03:01:39,930 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e1095ad9-ab3a-426c-9425-4079b91f0166/bin/utaipan/../../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c [2019-11-26 03:01:39,977 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e1095ad9-ab3a-426c-9425-4079b91f0166/bin/utaipan/data/a9cd47bff/56e09847a2754b31846114c2243626e5/FLAGe9fa25084 [2019-11-26 03:01:40,398 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 03:01:40,398 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e1095ad9-ab3a-426c-9425-4079b91f0166/sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c [2019-11-26 03:01:40,405 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e1095ad9-ab3a-426c-9425-4079b91f0166/bin/utaipan/data/a9cd47bff/56e09847a2754b31846114c2243626e5/FLAGe9fa25084 [2019-11-26 03:01:40,414 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e1095ad9-ab3a-426c-9425-4079b91f0166/bin/utaipan/data/a9cd47bff/56e09847a2754b31846114c2243626e5 [2019-11-26 03:01:40,417 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 03:01:40,418 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 03:01:40,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 03:01:40,419 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 03:01:40,422 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 03:01:40,423 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 03:01:40" (1/1) ... [2019-11-26 03:01:40,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b172d2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:40, skipping insertion in model container [2019-11-26 03:01:40,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 03:01:40" (1/1) ... [2019-11-26 03:01:40,432 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 03:01:40,458 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 03:01:40,663 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 03:01:40,671 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 03:01:40,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 03:01:40,844 INFO L205 MainTranslator]: Completed translation [2019-11-26 03:01:40,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:40 WrapperNode [2019-11-26 03:01:40,857 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 03:01:40,857 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 03:01:40,858 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 03:01:40,858 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 03:01:40,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:40" (1/1) ... [2019-11-26 03:01:40,883 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:40" (1/1) ... [2019-11-26 03:01:40,917 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 03:01:40,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 03:01:40,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 03:01:40,920 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 03:01:40,928 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:40" (1/1) ... [2019-11-26 03:01:40,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:40" (1/1) ... [2019-11-26 03:01:40,932 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:40" (1/1) ... [2019-11-26 03:01:40,933 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:40" (1/1) ... [2019-11-26 03:01:40,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:40" (1/1) ... [2019-11-26 03:01:40,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:40" (1/1) ... [2019-11-26 03:01:40,957 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:40" (1/1) ... [2019-11-26 03:01:40,962 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 03:01:40,962 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 03:01:40,963 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 03:01:40,963 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 03:01:40,963 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1095ad9-ab3a-426c-9425-4079b91f0166/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 03:01:41,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 03:01:41,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 03:01:41,520 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 03:01:41,520 INFO L284 CfgBuilder]: Removed 34 assume(true) statements. [2019-11-26 03:01:41,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 03:01:41 BoogieIcfgContainer [2019-11-26 03:01:41,521 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 03:01:41,522 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 03:01:41,522 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 03:01:41,525 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 03:01:41,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 03:01:40" (1/3) ... [2019-11-26 03:01:41,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e80cc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 03:01:41, skipping insertion in model container [2019-11-26 03:01:41,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:40" (2/3) ... [2019-11-26 03:01:41,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e80cc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 03:01:41, skipping insertion in model container [2019-11-26 03:01:41,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 03:01:41" (3/3) ... [2019-11-26 03:01:41,528 INFO L109 eAbstractionObserver]: Analyzing ICFG soft_float_4-3a.c.cil.c [2019-11-26 03:01:41,535 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 03:01:41,540 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2019-11-26 03:01:41,549 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-11-26 03:01:41,568 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 03:01:41,568 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 03:01:41,569 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 03:01:41,569 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 03:01:41,569 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 03:01:41,569 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 03:01:41,569 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 03:01:41,569 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 03:01:41,583 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2019-11-26 03:01:41,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-26 03:01:41,588 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 03:01:41,589 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 03:01:41,589 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 03:01:41,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 03:01:41,594 INFO L82 PathProgramCache]: Analyzing trace with hash 299467151, now seen corresponding path program 1 times [2019-11-26 03:01:41,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 03:01:41,603 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1535760928] [2019-11-26 03:01:41,603 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1095ad9-ab3a-426c-9425-4079b91f0166/bin/utaipan/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 03:01:41,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 03:01:41,683 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-26 03:01:41,688 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 03:01:41,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 03:01:41,769 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 03:01:41,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 03:01:41,783 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1535760928] [2019-11-26 03:01:41,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 03:01:41,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2019-11-26 03:01:41,786 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135449004] [2019-11-26 03:01:41,792 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-26 03:01:41,793 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 03:01:41,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-26 03:01:41,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-26 03:01:41,809 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 7 states. [2019-11-26 03:01:42,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 03:01:42,240 INFO L93 Difference]: Finished difference Result 284 states and 409 transitions. [2019-11-26 03:01:42,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-26 03:01:42,242 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2019-11-26 03:01:42,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 03:01:42,253 INFO L225 Difference]: With dead ends: 284 [2019-11-26 03:01:42,253 INFO L226 Difference]: Without dead ends: 184 [2019-11-26 03:01:42,257 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2019-11-26 03:01:42,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2019-11-26 03:01:42,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 107. [2019-11-26 03:01:42,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-11-26 03:01:42,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 143 transitions. [2019-11-26 03:01:42,301 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 143 transitions. Word has length 14 [2019-11-26 03:01:42,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 03:01:42,302 INFO L462 AbstractCegarLoop]: Abstraction has 107 states and 143 transitions. [2019-11-26 03:01:42,302 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-26 03:01:42,302 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 143 transitions. [2019-11-26 03:01:42,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-26 03:01:42,303 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 03:01:42,304 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 03:01:42,506 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 03:01:42,506 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 03:01:42,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 03:01:42,507 INFO L82 PathProgramCache]: Analyzing trace with hash -1094887938, now seen corresponding path program 1 times [2019-11-26 03:01:42,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 03:01:42,508 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1337735870] [2019-11-26 03:01:42,508 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1095ad9-ab3a-426c-9425-4079b91f0166/bin/utaipan/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 03:01:42,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 03:01:42,574 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-26 03:01:42,576 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 03:01:42,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 03:01:42,642 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 03:01:42,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 03:01:42,698 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1337735870] [2019-11-26 03:01:42,698 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 03:01:42,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 9 [2019-11-26 03:01:42,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474387101] [2019-11-26 03:01:42,700 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-26 03:01:42,700 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 03:01:42,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-26 03:01:42,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-26 03:01:42,701 INFO L87 Difference]: Start difference. First operand 107 states and 143 transitions. Second operand 9 states. [2019-11-26 03:01:42,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 03:01:42,990 INFO L93 Difference]: Finished difference Result 190 states and 240 transitions. [2019-11-26 03:01:42,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-26 03:01:42,990 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2019-11-26 03:01:42,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 03:01:42,994 INFO L225 Difference]: With dead ends: 190 [2019-11-26 03:01:42,994 INFO L226 Difference]: Without dead ends: 165 [2019-11-26 03:01:42,995 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2019-11-26 03:01:42,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2019-11-26 03:01:43,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 119. [2019-11-26 03:01:43,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-11-26 03:01:43,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 157 transitions. [2019-11-26 03:01:43,011 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 157 transitions. Word has length 22 [2019-11-26 03:01:43,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 03:01:43,012 INFO L462 AbstractCegarLoop]: Abstraction has 119 states and 157 transitions. [2019-11-26 03:01:43,012 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-26 03:01:43,012 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 157 transitions. [2019-11-26 03:01:43,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-26 03:01:43,014 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 03:01:43,014 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 03:01:43,229 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 03:01:43,230 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 03:01:43,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 03:01:43,230 INFO L82 PathProgramCache]: Analyzing trace with hash 620652719, now seen corresponding path program 1 times [2019-11-26 03:01:43,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 03:01:43,231 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1909942830] [2019-11-26 03:01:43,233 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1095ad9-ab3a-426c-9425-4079b91f0166/bin/utaipan/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 03:01:43,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 03:01:43,343 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-26 03:01:43,345 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 03:01:43,365 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 03:01:43,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 03:01:43,381 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 03:01:43,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 03:01:43,423 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1909942830] [2019-11-26 03:01:43,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 03:01:43,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-26 03:01:43,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434844948] [2019-11-26 03:01:43,424 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 03:01:43,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 03:01:43,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 03:01:43,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-26 03:01:43,425 INFO L87 Difference]: Start difference. First operand 119 states and 157 transitions. Second operand 6 states. [2019-11-26 03:01:43,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 03:01:43,679 INFO L93 Difference]: Finished difference Result 177 states and 232 transitions. [2019-11-26 03:01:43,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-26 03:01:43,680 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2019-11-26 03:01:43,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 03:01:43,681 INFO L225 Difference]: With dead ends: 177 [2019-11-26 03:01:43,681 INFO L226 Difference]: Without dead ends: 173 [2019-11-26 03:01:43,682 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2019-11-26 03:01:43,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2019-11-26 03:01:43,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 115. [2019-11-26 03:01:43,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-11-26 03:01:43,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 153 transitions. [2019-11-26 03:01:43,703 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 153 transitions. Word has length 22 [2019-11-26 03:01:43,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 03:01:43,704 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 153 transitions. [2019-11-26 03:01:43,705 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 03:01:43,705 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 153 transitions. [2019-11-26 03:01:43,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-26 03:01:43,711 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 03:01:43,712 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 03:01:43,915 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 03:01:43,915 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 03:01:43,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 03:01:43,916 INFO L82 PathProgramCache]: Analyzing trace with hash 131253304, now seen corresponding path program 1 times [2019-11-26 03:01:43,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 03:01:43,916 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1044602293] [2019-11-26 03:01:43,916 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1095ad9-ab3a-426c-9425-4079b91f0166/bin/utaipan/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 03:01:43,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 03:01:43,980 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-26 03:01:43,982 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 03:01:44,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 03:01:44,061 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 03:01:44,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 03:01:44,093 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1044602293] [2019-11-26 03:01:44,093 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 03:01:44,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2019-11-26 03:01:44,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836829901] [2019-11-26 03:01:44,094 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-26 03:01:44,094 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 03:01:44,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-26 03:01:44,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-11-26 03:01:44,095 INFO L87 Difference]: Start difference. First operand 115 states and 153 transitions. Second operand 9 states. [2019-11-26 03:01:44,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 03:01:44,507 INFO L93 Difference]: Finished difference Result 173 states and 213 transitions. [2019-11-26 03:01:44,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-26 03:01:44,508 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2019-11-26 03:01:44,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 03:01:44,509 INFO L225 Difference]: With dead ends: 173 [2019-11-26 03:01:44,510 INFO L226 Difference]: Without dead ends: 168 [2019-11-26 03:01:44,510 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2019-11-26 03:01:44,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2019-11-26 03:01:44,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 120. [2019-11-26 03:01:44,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-11-26 03:01:44,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 158 transitions. [2019-11-26 03:01:44,525 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 158 transitions. Word has length 24 [2019-11-26 03:01:44,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 03:01:44,526 INFO L462 AbstractCegarLoop]: Abstraction has 120 states and 158 transitions. [2019-11-26 03:01:44,526 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-26 03:01:44,526 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 158 transitions. [2019-11-26 03:01:44,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-26 03:01:44,527 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 03:01:44,527 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 03:01:44,731 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 03:01:44,731 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 03:01:44,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 03:01:44,732 INFO L82 PathProgramCache]: Analyzing trace with hash 133100346, now seen corresponding path program 1 times [2019-11-26 03:01:44,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 03:01:44,732 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [318124694] [2019-11-26 03:01:44,732 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1095ad9-ab3a-426c-9425-4079b91f0166/bin/utaipan/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 03:01:44,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 03:01:44,803 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-26 03:01:44,805 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 03:01:44,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 03:01:44,830 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 03:01:44,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 03:01:44,842 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [318124694] [2019-11-26 03:01:44,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 03:01:44,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2019-11-26 03:01:44,843 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327384697] [2019-11-26 03:01:44,843 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 03:01:44,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 03:01:44,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 03:01:44,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-26 03:01:44,844 INFO L87 Difference]: Start difference. First operand 120 states and 158 transitions. Second operand 6 states. [2019-11-26 03:01:44,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 03:01:44,959 INFO L93 Difference]: Finished difference Result 137 states and 178 transitions. [2019-11-26 03:01:44,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-26 03:01:44,959 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-11-26 03:01:44,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 03:01:44,960 INFO L225 Difference]: With dead ends: 137 [2019-11-26 03:01:44,960 INFO L226 Difference]: Without dead ends: 118 [2019-11-26 03:01:44,961 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2019-11-26 03:01:44,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2019-11-26 03:01:44,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 108. [2019-11-26 03:01:44,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-11-26 03:01:44,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 142 transitions. [2019-11-26 03:01:44,971 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 142 transitions. Word has length 24 [2019-11-26 03:01:44,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 03:01:44,971 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 142 transitions. [2019-11-26 03:01:44,971 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 03:01:44,971 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 142 transitions. [2019-11-26 03:01:44,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-26 03:01:44,972 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 03:01:44,972 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 03:01:45,174 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 03:01:45,177 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 03:01:45,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 03:01:45,178 INFO L82 PathProgramCache]: Analyzing trace with hash -553029582, now seen corresponding path program 1 times [2019-11-26 03:01:45,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 03:01:45,178 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [988377120] [2019-11-26 03:01:45,179 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e1095ad9-ab3a-426c-9425-4079b91f0166/bin/utaipan/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 03:01:45,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 03:01:45,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 03:01:45,346 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-11-26 03:01:45,346 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 03:01:45,549 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 03:01:45,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 03:01:45 BoogieIcfgContainer [2019-11-26 03:01:45,571 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 03:01:45,571 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 03:01:45,571 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 03:01:45,571 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 03:01:45,572 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 03:01:41" (3/4) ... [2019-11-26 03:01:45,574 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 03:01:45,638 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e1095ad9-ab3a-426c-9425-4079b91f0166/bin/utaipan/witness.graphml [2019-11-26 03:01:45,639 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 03:01:45,641 INFO L168 Benchmark]: Toolchain (without parser) took 5222.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.6 MB). Free memory was 957.8 MB in the beginning and 843.8 MB in the end (delta: 114.0 MB). Peak memory consumption was 289.6 MB. Max. memory is 11.5 GB. [2019-11-26 03:01:45,641 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. [2019-11-26 03:01:45,642 INFO L168 Benchmark]: CACSL2BoogieTranslator took 438.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.6 MB). Free memory was 957.8 MB in the beginning and 1.2 GB in the end (delta: -206.6 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2019-11-26 03:01:45,642 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 03:01:45,642 INFO L168 Benchmark]: Boogie Preprocessor took 42.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 03:01:45,643 INFO L168 Benchmark]: RCFGBuilder took 559.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 40.8 MB). Peak memory consumption was 40.8 MB. Max. memory is 11.5 GB. [2019-11-26 03:01:45,643 INFO L168 Benchmark]: TraceAbstraction took 4048.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 843.8 MB in the end (delta: 279.7 MB). Peak memory consumption was 279.7 MB. Max. memory is 11.5 GB. [2019-11-26 03:01:45,644 INFO L168 Benchmark]: Witness Printer took 67.71 ms. Allocated memory is still 1.2 GB. Free memory is still 843.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 03:01:45,646 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 438.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.6 MB). Free memory was 957.8 MB in the beginning and 1.2 GB in the end (delta: -206.6 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 61.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 559.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 40.8 MB). Peak memory consumption was 40.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4048.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 843.8 MB in the end (delta: 279.7 MB). Peak memory consumption was 279.7 MB. Max. memory is 11.5 GB. * Witness Printer took 67.71 ms. Allocated memory is still 1.2 GB. Free memory is still 843.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 7]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L216] unsigned int a ; [L217] unsigned int ma = __VERIFIER_nondet_uint(); [L218] signed char ea = __VERIFIER_nondet_char(); [L219] unsigned int b ; [L220] unsigned int mb = __VERIFIER_nondet_uint(); [L221] signed char eb = __VERIFIER_nondet_char(); [L222] unsigned int r_add1 ; [L223] unsigned int r_add2 ; [L224] unsigned int zero ; [L225] int tmp ; [L226] int tmp___0 ; [L227] int __retres14 ; [L15] unsigned int res ; [L16] unsigned int __retres4 ; [L19] COND TRUE ! m [L20] __retres4 = 0U [L70] return (__retres4); [L231] zero = base2flt(0, 0) [L15] unsigned int res ; [L16] unsigned int __retres4 ; [L19] COND FALSE !(! m) [L25] COND FALSE !(m < 1U << 24U) [L47] COND TRUE 1 [L49] COND FALSE !(m >= 1U << 25U) [L66] m = m & ~ (1U << 24U) [L67] res = m | ((unsigned int )(e + 128) << 24U) [L68] __retres4 = res [L70] return (__retres4); [L232] a = base2flt(ma, ea) [L15] unsigned int res ; [L16] unsigned int __retres4 ; [L19] COND FALSE !(! m) [L25] COND FALSE !(m < 1U << 24U) [L47] COND TRUE 1 [L49] COND FALSE !(m >= 1U << 25U) [L66] m = m & ~ (1U << 24U) [L67] res = m | ((unsigned int )(e + 128) << 24U) [L68] __retres4 = res [L70] return (__retres4); [L233] b = base2flt(mb, eb) [L74] unsigned int res ; [L75] unsigned int ma ; [L76] unsigned int mb ; [L77] unsigned int delta ; [L78] int ea ; [L79] int eb ; [L80] unsigned int tmp ; [L81] unsigned int __retres10 ; [L84] COND TRUE a < b [L85] tmp = a [L86] a = b [L87] b = tmp [L91] COND FALSE !(! b) [L98] ma = a & ((1U << 24U) - 1U) [L99] ea = (int )(a >> 24U) - 128 [L100] ma = ma | (1U << 24U) [L101] mb = b & ((1U << 24U) - 1U) [L102] eb = (int )(b >> 24U) - 128 [L103] mb = mb | (1U << 24U) [L6] COND FALSE !(!(cond)) [L105] delta = ea - eb [L6] COND TRUE !(cond) [L7] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 85 locations, 7 error locations. Result: UNSAFE, OverallTime: 4.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 555 SDtfs, 756 SDslu, 2473 SDs, 0 SdLazy, 427 SolverSat, 74 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 238 GetRequests, 175 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=120occurred in iteration=4, 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, 5 MinimizatonAttempts, 239 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 202 ConstructedInterpolants, 0 QuantifiedInterpolants, 7672 SizeOfPredicates, 35 NumberOfNonLiveVariables, 270 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 incorrect! Received shutdown request...