./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1210.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_58acd1f0-f4ec-4100-8608-73492e28d109/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_58acd1f0-f4ec-4100-8608-73492e28d109/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_58acd1f0-f4ec-4100-8608-73492e28d109/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_58acd1f0-f4ec-4100-8608-73492e28d109/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1210.c -s /tmp/vcloud-vcloud-master/worker/run_dir_58acd1f0-f4ec-4100-8608-73492e28d109/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_58acd1f0-f4ec-4100-8608-73492e28d109/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 36fce2ac9d239f0bf9286aa317af7b50704c65b6 ...................................................................................................................................................................................................................................................................................................................................... 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_58acd1f0-f4ec-4100-8608-73492e28d109/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_58acd1f0-f4ec-4100-8608-73492e28d109/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_58acd1f0-f4ec-4100-8608-73492e28d109/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_58acd1f0-f4ec-4100-8608-73492e28d109/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1210.c -s /tmp/vcloud-vcloud-master/worker/run_dir_58acd1f0-f4ec-4100-8608-73492e28d109/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_58acd1f0-f4ec-4100-8608-73492e28d109/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 36fce2ac9d239f0bf9286aa317af7b50704c65b6 ............................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.25-f470102 [2019-12-07 18:21:53,603 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:21:53,605 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:21:53,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:21:53,614 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:21:53,615 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:21:53,616 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:21:53,618 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:21:53,619 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:21:53,619 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:21:53,620 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:21:53,621 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:21:53,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:21:53,622 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:21:53,622 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:21:53,623 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:21:53,624 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:21:53,624 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:21:53,626 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:21:53,627 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:21:53,629 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:21:53,630 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:21:53,630 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:21:53,631 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:21:53,633 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:21:53,633 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:21:53,633 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:21:53,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:21:53,634 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:21:53,634 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:21:53,634 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:21:53,635 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:21:53,635 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:21:53,636 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:21:53,637 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:21:53,637 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:21:53,638 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:21:53,638 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:21:53,638 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:21:53,639 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:21:53,639 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:21:53,640 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_58acd1f0-f4ec-4100-8608-73492e28d109/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 18:21:53,652 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:21:53,652 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:21:53,653 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:21:53,653 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:21:53,654 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:21:53,654 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:21:53,654 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:21:53,654 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:21:53,654 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:21:53,655 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:21:53,655 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:21:53,655 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:21:53,655 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:21:53,655 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:21:53,656 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:21:53,656 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:21:53,656 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:21:53,656 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:21:53,656 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:21:53,657 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:21:53,657 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:21:53,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:21:53,657 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:21:53,657 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:21:53,657 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:21:53,658 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:21:53,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:21:53,658 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:21:53,658 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:21:53,658 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_58acd1f0-f4ec-4100-8608-73492e28d109/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36fce2ac9d239f0bf9286aa317af7b50704c65b6 [2019-12-07 18:21:53,760 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:21:53,770 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:21:53,773 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:21:53,774 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:21:53,774 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:21:53,775 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_58acd1f0-f4ec-4100-8608-73492e28d109/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2019-12-07 18:21:53,812 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_58acd1f0-f4ec-4100-8608-73492e28d109/bin/uautomizer/data/ff6ee6836/505cc584d2e34a739568f307805ef4f2/FLAGfdabf407f [2019-12-07 18:21:54,233 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:21:54,234 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_58acd1f0-f4ec-4100-8608-73492e28d109/sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2019-12-07 18:21:54,238 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_58acd1f0-f4ec-4100-8608-73492e28d109/bin/uautomizer/data/ff6ee6836/505cc584d2e34a739568f307805ef4f2/FLAGfdabf407f [2019-12-07 18:21:54,247 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_58acd1f0-f4ec-4100-8608-73492e28d109/bin/uautomizer/data/ff6ee6836/505cc584d2e34a739568f307805ef4f2 [2019-12-07 18:21:54,249 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:21:54,249 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:21:54,250 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:21:54,250 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:21:54,253 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:21:54,253 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:21:54" (1/1) ... [2019-12-07 18:21:54,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5575fbb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:54, skipping insertion in model container [2019-12-07 18:21:54,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:21:54" (1/1) ... [2019-12-07 18:21:54,260 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:21:54,273 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:21:54,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:21:54,429 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:21:54,448 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:21:54,459 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:21:54,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:54 WrapperNode [2019-12-07 18:21:54,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:21:54,460 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:21:54,460 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:21:54,460 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:21:54,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:54" (1/1) ... [2019-12-07 18:21:54,472 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:54" (1/1) ... [2019-12-07 18:21:54,488 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:21:54,489 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:21:54,489 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:21:54,489 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:21:54,495 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:54" (1/1) ... [2019-12-07 18:21:54,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:54" (1/1) ... [2019-12-07 18:21:54,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:54" (1/1) ... [2019-12-07 18:21:54,497 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:54" (1/1) ... [2019-12-07 18:21:54,503 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:54" (1/1) ... [2019-12-07 18:21:54,507 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:54" (1/1) ... [2019-12-07 18:21:54,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:54" (1/1) ... [2019-12-07 18:21:54,510 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:21:54,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:21:54,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:21:54,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:21:54,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_58acd1f0-f4ec-4100-8608-73492e28d109/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:21:54,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 18:21:54,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 18:21:54,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 18:21:54,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:21:54,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:21:54,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 18:21:54,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:21:54,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:21:54,784 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:21:54,785 INFO L287 CfgBuilder]: Removed 24 assume(true) statements. [2019-12-07 18:21:54,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:21:54 BoogieIcfgContainer [2019-12-07 18:21:54,786 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:21:54,787 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:21:54,787 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:21:54,789 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:21:54,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:21:54" (1/3) ... [2019-12-07 18:21:54,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a1b3a60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:21:54, skipping insertion in model container [2019-12-07 18:21:54,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:54" (2/3) ... [2019-12-07 18:21:54,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a1b3a60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:21:54, skipping insertion in model container [2019-12-07 18:21:54,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:21:54" (3/3) ... [2019-12-07 18:21:54,791 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1210.c [2019-12-07 18:21:54,798 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:21:54,802 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 18:21:54,810 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 18:21:54,825 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:21:54,825 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:21:54,825 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:21:54,825 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:21:54,825 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:21:54,825 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:21:54,825 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:21:54,825 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:21:54,835 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-12-07 18:21:54,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 18:21:54,839 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:21:54,840 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:21:54,840 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:21:54,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:21:54,844 INFO L82 PathProgramCache]: Analyzing trace with hash -556426464, now seen corresponding path program 1 times [2019-12-07 18:21:54,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:21:54,850 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622476148] [2019-12-07 18:21:54,850 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:21:54,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:21:54,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:21:54,947 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622476148] [2019-12-07 18:21:54,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:21:54,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:21:54,948 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084735347] [2019-12-07 18:21:54,951 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 18:21:54,951 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:21:54,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 18:21:54,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:21:54,961 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2019-12-07 18:21:54,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:21:54,973 INFO L93 Difference]: Finished difference Result 66 states and 102 transitions. [2019-12-07 18:21:54,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:21:54,974 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-12-07 18:21:54,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:21:54,981 INFO L225 Difference]: With dead ends: 66 [2019-12-07 18:21:54,981 INFO L226 Difference]: Without dead ends: 31 [2019-12-07 18:21:54,983 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:21:54,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-07 18:21:55,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-12-07 18:21:55,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-07 18:21:55,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2019-12-07 18:21:55,005 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 13 [2019-12-07 18:21:55,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:21:55,005 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2019-12-07 18:21:55,005 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 18:21:55,006 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2019-12-07 18:21:55,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 18:21:55,006 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:21:55,006 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:21:55,006 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:21:55,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:21:55,007 INFO L82 PathProgramCache]: Analyzing trace with hash -56818241, now seen corresponding path program 1 times [2019-12-07 18:21:55,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:21:55,007 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761309891] [2019-12-07 18:21:55,007 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:21:55,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:21:55,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:21:55,054 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761309891] [2019-12-07 18:21:55,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:21:55,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:21:55,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743386076] [2019-12-07 18:21:55,055 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:21:55,055 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:21:55,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:21:55,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:21:55,056 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 3 states. [2019-12-07 18:21:55,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:21:55,068 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2019-12-07 18:21:55,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:21:55,068 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-12-07 18:21:55,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:21:55,069 INFO L225 Difference]: With dead ends: 34 [2019-12-07 18:21:55,069 INFO L226 Difference]: Without dead ends: 31 [2019-12-07 18:21:55,070 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:21:55,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-07 18:21:55,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-12-07 18:21:55,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-07 18:21:55,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2019-12-07 18:21:55,073 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 15 [2019-12-07 18:21:55,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:21:55,073 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2019-12-07 18:21:55,073 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:21:55,073 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2019-12-07 18:21:55,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 18:21:55,074 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:21:55,074 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:21:55,074 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:21:55,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:21:55,074 INFO L82 PathProgramCache]: Analyzing trace with hash -1761490312, now seen corresponding path program 1 times [2019-12-07 18:21:55,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:21:55,074 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775453993] [2019-12-07 18:21:55,075 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:21:55,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:21:55,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:21:55,140 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:21:55,140 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 18:21:55,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:21:55 BoogieIcfgContainer [2019-12-07 18:21:55,163 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:21:55,163 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:21:55,163 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:21:55,163 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:21:55,163 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:21:54" (3/4) ... [2019-12-07 18:21:55,165 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 18:21:55,166 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:21:55,167 INFO L168 Benchmark]: Toolchain (without parser) took 917.17 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 942.5 MB in the beginning and 1.0 GB in the end (delta: -81.4 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2019-12-07 18:21:55,167 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:21:55,168 INFO L168 Benchmark]: CACSL2BoogieTranslator took 209.45 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -148.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:21:55,168 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:21:55,169 INFO L168 Benchmark]: Boogie Preprocessor took 21.69 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:21:55,169 INFO L168 Benchmark]: RCFGBuilder took 275.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:21:55,169 INFO L168 Benchmark]: TraceAbstraction took 375.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 34.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:21:55,170 INFO L168 Benchmark]: Witness Printer took 2.79 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:21:55,172 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 209.45 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -148.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.69 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 275.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 375.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 34.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 11.5 GB. * Witness Printer took 2.79 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 86]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 73, overapproximation of someBinaryArithmeticFLOAToperation at line 80, overapproximation of bitwiseAnd at line 26. Possible FailurePath: [L11] static const float one_modf = 1.0; VAL [one_modf=1] [L80] float x = 0.0f / 0.0f; [L81] float iptr; [L14] __int32_t i0, j0; [L15] __uint32_t i; VAL [one_modf=1] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (i0) = gf_u.word [L21] j0 = ((i0 >> 23) & 0xff) - 0x7f VAL [one_modf=1] [L22] COND TRUE j0 < 23 VAL [one_modf=1] [L23] COND TRUE j0 < 0 VAL [one_modf=1] [L25] ieee_float_shape_type sf_u; [L26] sf_u.word = (i0 & 0x80000000) [L27] EXPR sf_u.value [L27] (*iptr) = sf_u.value [L29] return x; VAL [one_modf=1] [L82] float res = modf_float(x, &iptr); [L85] EXPR \read(iptr) [L73] return x != x; VAL [one_modf=1] [L85] isnan_float(iptr) && !isnan_float(res) [L73] return x != x; VAL [one_modf=1] [L85] isnan_float(iptr) && !isnan_float(res) VAL [one_modf=1] [L85] COND TRUE isnan_float(iptr) && !isnan_float(res) [L86] __VERIFIER_error() VAL [one_modf=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 71 SDtfs, 0 SDslu, 28 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 354 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 0.1.25-f470102 [2019-12-07 18:21:56,533 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:21:56,534 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:21:56,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-12-07 18:21:56,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:21:56,551 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:21:56,551 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:21:56,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:21:56,553 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:21:56,554 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:21:56,555 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:21:56,557 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:21:56,558 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:21:56,559 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:21:56,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:21:56,561 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:21:56,563 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-07 18:21:56,566 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:21:56,566 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:21:56,567 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:21:56,567 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:21:56,568 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:21:56,568 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:21:56,569 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:21:56,569 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:21:56,569 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:21:56,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:21:56,571 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:21:56,571 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_58acd1f0-f4ec-4100-8608-73492e28d109/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 18:21:56,584 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:21:56,584 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:21:56,585 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:21:56,585 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:21:56,585 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:21:56,586 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:21:56,586 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:21:56,586 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:21:56,586 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:21:56,586 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:21:56,587 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:21:56,587 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:21:56,587 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 18:21:56,587 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 18:21:56,587 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:21:56,588 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:21:56,588 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:21:56,588 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:21:56,588 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:21:56,588 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:21:56,589 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:21:56,589 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:21:56,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:21:56,589 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:21:56,589 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:21:56,590 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:21:56,590 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 18:21:56,590 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 18:21:56,590 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:21:56,590 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:21:56,591 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 18:21:56,591 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_58acd1f0-f4ec-4100-8608-73492e28d109/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36fce2ac9d239f0bf9286aa317af7b50704c65b6 [2019-12-07 18:21:56,764 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:21:56,774 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:21:56,777 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:21:56,778 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:21:56,778 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:21:56,779 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_58acd1f0-f4ec-4100-8608-73492e28d109/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2019-12-07 18:21:56,817 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_58acd1f0-f4ec-4100-8608-73492e28d109/bin/uautomizer/data/b3bda0c52/cc935ef12acf4e51b2d8ca674e5e9fb5/FLAG957e2b662 [2019-12-07 18:21:57,271 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:21:57,271 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_58acd1f0-f4ec-4100-8608-73492e28d109/sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2019-12-07 18:21:57,276 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_58acd1f0-f4ec-4100-8608-73492e28d109/bin/uautomizer/data/b3bda0c52/cc935ef12acf4e51b2d8ca674e5e9fb5/FLAG957e2b662 [2019-12-07 18:21:57,285 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_58acd1f0-f4ec-4100-8608-73492e28d109/bin/uautomizer/data/b3bda0c52/cc935ef12acf4e51b2d8ca674e5e9fb5 [2019-12-07 18:21:57,287 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:21:57,287 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:21:57,288 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:21:57,288 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:21:57,290 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:21:57,291 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:21:57" (1/1) ... [2019-12-07 18:21:57,292 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@faaa545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:57, skipping insertion in model container [2019-12-07 18:21:57,292 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:21:57" (1/1) ... [2019-12-07 18:21:57,297 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:21:57,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:21:57,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:21:57,432 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:21:57,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:21:57,463 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:21:57,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:57 WrapperNode [2019-12-07 18:21:57,463 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:21:57,464 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:21:57,464 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:21:57,464 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:21:57,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:57" (1/1) ... [2019-12-07 18:21:57,508 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:57" (1/1) ... [2019-12-07 18:21:57,529 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:21:57,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:21:57,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:21:57,530 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:21:57,536 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:57" (1/1) ... [2019-12-07 18:21:57,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:57" (1/1) ... [2019-12-07 18:21:57,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:57" (1/1) ... [2019-12-07 18:21:57,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:57" (1/1) ... [2019-12-07 18:21:57,546 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:57" (1/1) ... [2019-12-07 18:21:57,550 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:57" (1/1) ... [2019-12-07 18:21:57,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:57" (1/1) ... [2019-12-07 18:21:57,555 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:21:57,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:21:57,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:21:57,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:21:57,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_58acd1f0-f4ec-4100-8608-73492e28d109/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:21:57,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:21:57,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-12-07 18:21:57,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 18:21:57,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:21:57,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:21:57,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-12-07 18:21:57,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 18:21:57,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:21:57,921 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:21:57,921 INFO L287 CfgBuilder]: Removed 24 assume(true) statements. [2019-12-07 18:21:57,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:21:57 BoogieIcfgContainer [2019-12-07 18:21:57,922 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:21:57,923 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:21:57,923 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:21:57,925 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:21:57,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:21:57" (1/3) ... [2019-12-07 18:21:57,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18927542 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:21:57, skipping insertion in model container [2019-12-07 18:21:57,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:21:57" (2/3) ... [2019-12-07 18:21:57,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18927542 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:21:57, skipping insertion in model container [2019-12-07 18:21:57,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:21:57" (3/3) ... [2019-12-07 18:21:57,927 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1210.c [2019-12-07 18:21:57,933 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:21:57,937 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 18:21:57,944 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 18:21:57,959 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:21:57,959 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:21:57,959 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:21:57,959 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:21:57,959 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:21:57,959 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:21:57,959 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:21:57,959 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:21:57,968 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-12-07 18:21:57,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 18:21:57,973 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:21:57,973 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:21:57,973 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:21:57,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:21:57,977 INFO L82 PathProgramCache]: Analyzing trace with hash -556426464, now seen corresponding path program 1 times [2019-12-07 18:21:57,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:21:57,984 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1571164808] [2019-12-07 18:21:57,984 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_58acd1f0-f4ec-4100-8608-73492e28d109/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 18:21:58,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:21:58,106 INFO L264 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 18:21:58,109 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:21:58,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:21:58,118 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:21:58,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:21:58,122 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1571164808] [2019-12-07 18:21:58,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:21:58,122 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 18:21:58,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306091005] [2019-12-07 18:21:58,126 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 18:21:58,126 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:21:58,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 18:21:58,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:21:58,140 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2019-12-07 18:21:58,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:21:58,154 INFO L93 Difference]: Finished difference Result 66 states and 102 transitions. [2019-12-07 18:21:58,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:21:58,155 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-12-07 18:21:58,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:21:58,165 INFO L225 Difference]: With dead ends: 66 [2019-12-07 18:21:58,165 INFO L226 Difference]: Without dead ends: 31 [2019-12-07 18:21:58,168 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:21:58,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-07 18:21:58,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-12-07 18:21:58,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-07 18:21:58,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2019-12-07 18:21:58,194 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 13 [2019-12-07 18:21:58,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:21:58,194 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2019-12-07 18:21:58,194 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 18:21:58,194 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2019-12-07 18:21:58,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 18:21:58,194 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:21:58,195 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:21:58,396 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 18:21:58,396 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:21:58,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:21:58,397 INFO L82 PathProgramCache]: Analyzing trace with hash -56818241, now seen corresponding path program 1 times [2019-12-07 18:21:58,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:21:58,400 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [60900092] [2019-12-07 18:21:58,400 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_58acd1f0-f4ec-4100-8608-73492e28d109/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 18:21:58,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:21:58,497 INFO L264 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 18:21:58,499 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:21:58,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:21:58,564 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:21:58,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:21:58,647 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [60900092] [2019-12-07 18:21:58,647 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:21:58,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-12-07 18:21:58,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143452658] [2019-12-07 18:21:58,649 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 18:21:58,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:21:58,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 18:21:58,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:21:58,649 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 8 states. [2019-12-07 18:21:58,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:21:58,870 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2019-12-07 18:21:58,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 18:21:58,871 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-12-07 18:21:58,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:21:58,871 INFO L225 Difference]: With dead ends: 38 [2019-12-07 18:21:58,871 INFO L226 Difference]: Without dead ends: 18 [2019-12-07 18:21:58,872 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2019-12-07 18:21:58,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-12-07 18:21:58,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-12-07 18:21:58,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-07 18:21:58,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-12-07 18:21:58,876 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 15 [2019-12-07 18:21:58,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:21:58,876 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-12-07 18:21:58,876 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 18:21:58,876 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-12-07 18:21:58,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 18:21:58,876 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:21:58,877 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:21:59,077 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 18:21:59,078 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:21:59,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:21:59,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1951048762, now seen corresponding path program 1 times [2019-12-07 18:21:59,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:21:59,082 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1310331085] [2019-12-07 18:21:59,082 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_58acd1f0-f4ec-4100-8608-73492e28d109/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 18:21:59,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:21:59,197 INFO L264 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 18:21:59,198 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:21:59,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:21:59,202 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:21:59,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:21:59,204 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1310331085] [2019-12-07 18:21:59,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:21:59,204 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 18:21:59,204 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842301908] [2019-12-07 18:21:59,204 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:21:59,205 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:21:59,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:21:59,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:21:59,205 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 3 states. [2019-12-07 18:21:59,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:21:59,220 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2019-12-07 18:21:59,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:21:59,220 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-12-07 18:21:59,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:21:59,221 INFO L225 Difference]: With dead ends: 21 [2019-12-07 18:21:59,221 INFO L226 Difference]: Without dead ends: 18 [2019-12-07 18:21:59,221 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:21:59,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-12-07 18:21:59,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-12-07 18:21:59,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-07 18:21:59,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2019-12-07 18:21:59,224 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2019-12-07 18:21:59,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:21:59,224 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2019-12-07 18:21:59,224 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:21:59,224 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2019-12-07 18:21:59,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 18:21:59,225 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:21:59,225 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:21:59,425 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 18:21:59,426 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:21:59,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:21:59,427 INFO L82 PathProgramCache]: Analyzing trace with hash 352844637, now seen corresponding path program 1 times [2019-12-07 18:21:59,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:21:59,428 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [210030277] [2019-12-07 18:21:59,428 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_58acd1f0-f4ec-4100-8608-73492e28d109/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 18:21:59,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:21:59,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:21:59,780 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-12-07 18:21:59,780 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 18:21:59,981 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 18:22:00,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:22:00 BoogieIcfgContainer [2019-12-07 18:22:00,039 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:22:00,039 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:22:00,039 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:22:00,039 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:22:00,040 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:21:57" (3/4) ... [2019-12-07 18:22:00,042 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 18:22:00,081 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_58acd1f0-f4ec-4100-8608-73492e28d109/bin/uautomizer/witness.graphml [2019-12-07 18:22:00,081 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:22:00,082 INFO L168 Benchmark]: Toolchain (without parser) took 2794.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 953.7 MB in the beginning and 968.0 MB in the end (delta: -14.2 MB). Peak memory consumption was 117.9 MB. Max. memory is 11.5 GB. [2019-12-07 18:22:00,082 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:22:00,083 INFO L168 Benchmark]: CACSL2BoogieTranslator took 175.50 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 937.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:22:00,083 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 937.6 MB in the beginning and 1.1 GB in the end (delta: -183.6 MB). Peak memory consumption was 10.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:22:00,084 INFO L168 Benchmark]: Boogie Preprocessor took 25.36 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. [2019-12-07 18:22:00,084 INFO L168 Benchmark]: RCFGBuilder took 367.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.8 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. [2019-12-07 18:22:00,085 INFO L168 Benchmark]: TraceAbstraction took 2115.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 974.8 MB in the end (delta: 114.6 MB). Peak memory consumption was 114.6 MB. Max. memory is 11.5 GB. [2019-12-07 18:22:00,085 INFO L168 Benchmark]: Witness Printer took 41.86 ms. Allocated memory is still 1.2 GB. Free memory was 974.8 MB in the beginning and 968.0 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 18:22:00,086 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 175.50 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 937.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 65.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 937.6 MB in the beginning and 1.1 GB in the end (delta: -183.6 MB). Peak memory consumption was 10.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.36 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 367.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.8 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2115.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 974.8 MB in the end (delta: 114.6 MB). Peak memory consumption was 114.6 MB. Max. memory is 11.5 GB. * Witness Printer took 41.86 ms. Allocated memory is still 1.2 GB. Free memory was 974.8 MB in the beginning and 968.0 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 86]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L11] static const float one_modf = 1.0; VAL [one_modf=1.0] [L80] float x = 0.0f / 0.0f; [L81] float iptr; [L14] __int32_t i0, j0; [L15] __uint32_t i; VAL [one_modf=1.0] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (i0) = gf_u.word [L21] j0 = ((i0 >> 23) & 0xff) - 0x7f VAL [one_modf=1.0] [L22] COND FALSE !(j0 < 23) [L56] __uint32_t ix; [L57] *iptr = x * one_modf VAL [one_modf=1.0] [L59] ieee_float_shape_type gf_u; [L60] gf_u.value = (x) [L61] EXPR gf_u.word [L61] (ix) = gf_u.word [L64] ieee_float_shape_type sf_u; [L65] sf_u.word = (ix & 0x80000000) [L66] EXPR sf_u.value [L66] (x) = sf_u.value [L68] return x; VAL [one_modf=1.0] [L82] float res = modf_float(x, &iptr); [L85] EXPR \read(iptr) [L73] return x != x; VAL [one_modf=1.0] [L85] isnan_float(iptr) && !isnan_float(res) [L73] return x != x; VAL [one_modf=1.0] [L85] isnan_float(iptr) && !isnan_float(res) VAL [one_modf=1.0] [L85] COND TRUE isnan_float(iptr) && !isnan_float(res) [L86] __VERIFIER_error() VAL [one_modf=1.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Result: UNSAFE, OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 69 SDtfs, 46 SDslu, 34 SDs, 0 SdLazy, 17 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 82 ConstructedInterpolants, 5 QuantifiedInterpolants, 2476 SizeOfPredicates, 8 NumberOfNonLiveVariables, 159 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...