./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/cast_union_tight.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b3835384-763d-434c-8c57-50c088678c22/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b3835384-763d-434c-8c57-50c088678c22/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b3835384-763d-434c-8c57-50c088678c22/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b3835384-763d-434c-8c57-50c088678c22/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_union_tight.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b3835384-763d-434c-8c57-50c088678c22/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b3835384-763d-434c-8c57-50c088678c22/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 6c0005e6146056cc1de3f3f086fde77a54c02f63 ......................................................................................................................................................................................................................................... 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_b3835384-763d-434c-8c57-50c088678c22/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b3835384-763d-434c-8c57-50c088678c22/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b3835384-763d-434c-8c57-50c088678c22/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b3835384-763d-434c-8c57-50c088678c22/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_union_tight.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b3835384-763d-434c-8c57-50c088678c22/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b3835384-763d-434c-8c57-50c088678c22/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 6c0005e6146056cc1de3f3f086fde77a54c02f63 ............................................................................................................................................................................................................................................... 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 0.1.24-678e011 [2019-11-20 00:20:26,568 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 00:20:26,570 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 00:20:26,588 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 00:20:26,589 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 00:20:26,590 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 00:20:26,592 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 00:20:26,602 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 00:20:26,607 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 00:20:26,610 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 00:20:26,611 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 00:20:26,612 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 00:20:26,612 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 00:20:26,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 00:20:26,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 00:20:26,615 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 00:20:26,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 00:20:26,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 00:20:26,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 00:20:26,623 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 00:20:26,628 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 00:20:26,630 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 00:20:26,634 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 00:20:26,635 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 00:20:26,641 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 00:20:26,642 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 00:20:26,642 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 00:20:26,644 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 00:20:26,644 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 00:20:26,646 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 00:20:26,646 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 00:20:26,647 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 00:20:26,648 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 00:20:26,649 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 00:20:26,650 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 00:20:26,650 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 00:20:26,651 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 00:20:26,651 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 00:20:26,651 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 00:20:26,653 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 00:20:26,654 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 00:20:26,655 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b3835384-763d-434c-8c57-50c088678c22/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 00:20:26,685 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 00:20:26,685 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 00:20:26,686 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 00:20:26,686 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 00:20:26,687 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 00:20:26,687 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 00:20:26,687 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 00:20:26,687 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 00:20:26,688 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 00:20:26,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 00:20:26,688 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 00:20:26,688 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 00:20:26,688 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 00:20:26,689 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 00:20:26,689 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 00:20:26,689 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 00:20:26,689 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 00:20:26,690 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 00:20:26,690 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 00:20:26,690 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 00:20:26,690 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 00:20:26,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 00:20:26,691 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 00:20:26,691 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 00:20:26,691 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 00:20:26,691 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 00:20:26,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 00:20:26,692 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 00:20:26,692 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_b3835384-763d-434c-8c57-50c088678c22/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 -> 6c0005e6146056cc1de3f3f086fde77a54c02f63 [2019-11-20 00:20:26,912 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 00:20:26,930 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 00:20:26,935 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 00:20:26,938 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 00:20:26,938 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 00:20:26,940 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b3835384-763d-434c-8c57-50c088678c22/bin/uautomizer/../../sv-benchmarks/c/float-benchs/cast_union_tight.c [2019-11-20 00:20:27,006 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b3835384-763d-434c-8c57-50c088678c22/bin/uautomizer/data/9f5aafc6e/43a6df702edf4993943b6dae048df0d0/FLAG9093c4f4c [2019-11-20 00:20:27,400 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 00:20:27,400 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b3835384-763d-434c-8c57-50c088678c22/sv-benchmarks/c/float-benchs/cast_union_tight.c [2019-11-20 00:20:27,406 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b3835384-763d-434c-8c57-50c088678c22/bin/uautomizer/data/9f5aafc6e/43a6df702edf4993943b6dae048df0d0/FLAG9093c4f4c [2019-11-20 00:20:27,730 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b3835384-763d-434c-8c57-50c088678c22/bin/uautomizer/data/9f5aafc6e/43a6df702edf4993943b6dae048df0d0 [2019-11-20 00:20:27,732 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 00:20:27,733 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 00:20:27,734 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 00:20:27,735 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 00:20:27,738 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 00:20:27,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:20:27" (1/1) ... [2019-11-20 00:20:27,742 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6360d16e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:27, skipping insertion in model container [2019-11-20 00:20:27,742 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:20:27" (1/1) ... [2019-11-20 00:20:27,750 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 00:20:27,768 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 00:20:28,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:20:28,037 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 00:20:28,157 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:20:28,184 INFO L192 MainTranslator]: Completed translation [2019-11-20 00:20:28,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:28 WrapperNode [2019-11-20 00:20:28,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 00:20:28,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 00:20:28,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 00:20:28,186 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 00:20:28,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:28" (1/1) ... [2019-11-20 00:20:28,207 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:28" (1/1) ... [2019-11-20 00:20:28,227 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 00:20:28,227 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 00:20:28,227 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 00:20:28,228 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 00:20:28,236 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:28" (1/1) ... [2019-11-20 00:20:28,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:28" (1/1) ... [2019-11-20 00:20:28,238 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:28" (1/1) ... [2019-11-20 00:20:28,238 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:28" (1/1) ... [2019-11-20 00:20:28,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:28" (1/1) ... [2019-11-20 00:20:28,248 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:28" (1/1) ... [2019-11-20 00:20:28,249 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:28" (1/1) ... [2019-11-20 00:20:28,251 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 00:20:28,252 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 00:20:28,252 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 00:20:28,252 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 00:20:28,253 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b3835384-763d-434c-8c57-50c088678c22/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 00:20:28,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-20 00:20:28,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 00:20:28,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 00:20:28,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 00:20:28,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 00:20:28,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 00:20:28,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 00:20:28,695 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 00:20:28,695 INFO L285 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-20 00:20:28,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:20:28 BoogieIcfgContainer [2019-11-20 00:20:28,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 00:20:28,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 00:20:28,697 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 00:20:28,701 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 00:20:28,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:20:27" (1/3) ... [2019-11-20 00:20:28,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a1bc1bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:20:28, skipping insertion in model container [2019-11-20 00:20:28,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:28" (2/3) ... [2019-11-20 00:20:28,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a1bc1bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:20:28, skipping insertion in model container [2019-11-20 00:20:28,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:20:28" (3/3) ... [2019-11-20 00:20:28,705 INFO L109 eAbstractionObserver]: Analyzing ICFG cast_union_tight.c [2019-11-20 00:20:28,713 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 00:20:28,721 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 00:20:28,730 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 00:20:28,750 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 00:20:28,751 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 00:20:28,751 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 00:20:28,751 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 00:20:28,751 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 00:20:28,751 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 00:20:28,751 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 00:20:28,752 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 00:20:28,767 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-20 00:20:28,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 00:20:28,773 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:20:28,774 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-20 00:20:28,774 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:20:28,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:20:28,781 INFO L82 PathProgramCache]: Analyzing trace with hash 28692803, now seen corresponding path program 1 times [2019-11-20 00:20:28,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:20:28,789 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582138887] [2019-11-20 00:20:28,789 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:20:28,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:20:28,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:20:28,961 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:20:28,962 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 00:20:28,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:20:28 BoogieIcfgContainer [2019-11-20 00:20:28,985 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 00:20:28,985 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 00:20:28,986 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 00:20:28,986 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 00:20:28,986 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:20:28" (3/4) ... [2019-11-20 00:20:28,989 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 00:20:28,990 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 00:20:28,992 INFO L168 Benchmark]: Toolchain (without parser) took 1257.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -166.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:20:28,993 INFO L168 Benchmark]: CDTParser took 0.64 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:20:28,995 INFO L168 Benchmark]: CACSL2BoogieTranslator took 450.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -203.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-20 00:20:28,995 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.90 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. [2019-11-20 00:20:28,996 INFO L168 Benchmark]: Boogie Preprocessor took 24.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-20 00:20:28,997 INFO L168 Benchmark]: RCFGBuilder took 444.59 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-11-20 00:20:28,999 INFO L168 Benchmark]: TraceAbstraction took 287.83 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-20 00:20:28,999 INFO L168 Benchmark]: Witness Printer took 4.41 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:20:29,005 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 450.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -203.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.90 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 24.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 444.59 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 287.83 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.41 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 7]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 32, overapproximation of someBinaryArithmeticDOUBLEoperation at line 21, overapproximation of bitwiseXor at line 20. Possible FailurePath: [L26] int a; [L27] double r; [L29] a = __VERIFIER_nondet_int() [L16] union u x, y; [L17] x.i[0] = 0x43300000 [L18] EXPR x.i[0] [L18] y.i[0] = x.i[0] [L19] x.i[1] = 0x80000000 [L20] EXPR x.i[1] [L20] y.i[1] = i ^ x.i[1] [L21] EXPR y.d [L21] EXPR x.d [L21] return y.d - x.d; [L21] return y.d - x.d; [L21] return y.d - x.d; [L31] r = cast(a) [L7] COND TRUE !(cond) [L7] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 00:20:31,101 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 00:20:31,103 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 00:20:31,115 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 00:20:31,115 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 00:20:31,116 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 00:20:31,118 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 00:20:31,120 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 00:20:31,122 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 00:20:31,124 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 00:20:31,125 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 00:20:31,126 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 00:20:31,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 00:20:31,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 00:20:31,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 00:20:31,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 00:20:31,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 00:20:31,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 00:20:31,134 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 00:20:31,137 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 00:20:31,139 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 00:20:31,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 00:20:31,142 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 00:20:31,143 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 00:20:31,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 00:20:31,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 00:20:31,147 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 00:20:31,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 00:20:31,149 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 00:20:31,150 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 00:20:31,151 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 00:20:31,152 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 00:20:31,153 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 00:20:31,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 00:20:31,155 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 00:20:31,155 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 00:20:31,156 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 00:20:31,156 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 00:20:31,156 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 00:20:31,158 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 00:20:31,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 00:20:31,159 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b3835384-763d-434c-8c57-50c088678c22/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 00:20:31,176 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 00:20:31,176 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 00:20:31,178 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 00:20:31,178 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 00:20:31,178 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 00:20:31,179 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 00:20:31,179 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 00:20:31,179 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 00:20:31,180 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 00:20:31,180 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 00:20:31,180 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 00:20:31,181 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 00:20:31,181 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 00:20:31,181 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 00:20:31,182 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 00:20:31,182 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 00:20:31,182 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 00:20:31,182 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 00:20:31,183 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 00:20:31,183 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 00:20:31,183 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 00:20:31,184 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 00:20:31,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 00:20:31,184 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 00:20:31,185 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 00:20:31,185 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 00:20:31,185 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 00:20:31,185 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 00:20:31,186 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 00:20:31,186 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 00:20:31,186 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_b3835384-763d-434c-8c57-50c088678c22/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 -> 6c0005e6146056cc1de3f3f086fde77a54c02f63 [2019-11-20 00:20:31,646 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 00:20:31,658 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 00:20:31,664 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 00:20:31,665 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 00:20:31,665 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 00:20:31,666 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b3835384-763d-434c-8c57-50c088678c22/bin/uautomizer/../../sv-benchmarks/c/float-benchs/cast_union_tight.c [2019-11-20 00:20:31,713 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b3835384-763d-434c-8c57-50c088678c22/bin/uautomizer/data/2f921c503/fa7347f4092645ffb5567d3cdf7e710c/FLAG7946ebd3a [2019-11-20 00:20:32,160 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 00:20:32,160 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b3835384-763d-434c-8c57-50c088678c22/sv-benchmarks/c/float-benchs/cast_union_tight.c [2019-11-20 00:20:32,168 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b3835384-763d-434c-8c57-50c088678c22/bin/uautomizer/data/2f921c503/fa7347f4092645ffb5567d3cdf7e710c/FLAG7946ebd3a [2019-11-20 00:20:32,549 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b3835384-763d-434c-8c57-50c088678c22/bin/uautomizer/data/2f921c503/fa7347f4092645ffb5567d3cdf7e710c [2019-11-20 00:20:32,554 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 00:20:32,555 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 00:20:32,562 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 00:20:32,563 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 00:20:32,567 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 00:20:32,568 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:20:32" (1/1) ... [2019-11-20 00:20:32,571 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e7c1757 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:32, skipping insertion in model container [2019-11-20 00:20:32,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:20:32" (1/1) ... [2019-11-20 00:20:32,581 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 00:20:32,601 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 00:20:32,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:20:32,778 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 00:20:32,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:20:32,836 INFO L192 MainTranslator]: Completed translation [2019-11-20 00:20:32,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:32 WrapperNode [2019-11-20 00:20:32,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 00:20:32,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 00:20:32,838 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 00:20:32,838 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 00:20:32,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:32" (1/1) ... [2019-11-20 00:20:32,930 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:32" (1/1) ... [2019-11-20 00:20:32,952 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 00:20:32,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 00:20:32,953 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 00:20:32,953 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 00:20:32,963 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:32" (1/1) ... [2019-11-20 00:20:32,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:32" (1/1) ... [2019-11-20 00:20:32,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:32" (1/1) ... [2019-11-20 00:20:32,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:32" (1/1) ... [2019-11-20 00:20:32,988 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:32" (1/1) ... [2019-11-20 00:20:32,991 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:32" (1/1) ... [2019-11-20 00:20:32,999 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:32" (1/1) ... [2019-11-20 00:20:33,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 00:20:33,005 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 00:20:33,005 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 00:20:33,005 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 00:20:33,007 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b3835384-763d-434c-8c57-50c088678c22/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 00:20:33,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-20 00:20:33,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 00:20:33,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 00:20:33,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 00:20:33,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 00:20:33,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 00:20:33,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 00:20:33,578 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 00:20:33,578 INFO L285 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-20 00:20:33,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:20:33 BoogieIcfgContainer [2019-11-20 00:20:33,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 00:20:33,581 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 00:20:33,581 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 00:20:33,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 00:20:33,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:20:32" (1/3) ... [2019-11-20 00:20:33,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd2e26a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:20:33, skipping insertion in model container [2019-11-20 00:20:33,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:32" (2/3) ... [2019-11-20 00:20:33,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd2e26a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:20:33, skipping insertion in model container [2019-11-20 00:20:33,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:20:33" (3/3) ... [2019-11-20 00:20:33,589 INFO L109 eAbstractionObserver]: Analyzing ICFG cast_union_tight.c [2019-11-20 00:20:33,600 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 00:20:33,607 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 00:20:33,620 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 00:20:33,647 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 00:20:33,647 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 00:20:33,647 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 00:20:33,648 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 00:20:33,648 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 00:20:33,649 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 00:20:33,649 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 00:20:33,649 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 00:20:33,661 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-20 00:20:33,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 00:20:33,668 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:20:33,669 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-20 00:20:33,670 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:20:33,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:20:33,675 INFO L82 PathProgramCache]: Analyzing trace with hash 28692803, now seen corresponding path program 1 times [2019-11-20 00:20:33,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 00:20:33,685 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1386044353] [2019-11-20 00:20:33,686 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b3835384-763d-434c-8c57-50c088678c22/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-20 00:20:33,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:20:34,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:20:34,176 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-20 00:20:34,177 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 00:20:34,377 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-20 00:20:34,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:20:34 BoogieIcfgContainer [2019-11-20 00:20:34,408 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 00:20:34,409 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 00:20:34,409 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 00:20:34,409 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 00:20:34,410 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:20:33" (3/4) ... [2019-11-20 00:20:34,412 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 00:20:34,455 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b3835384-763d-434c-8c57-50c088678c22/bin/uautomizer/witness.graphml [2019-11-20 00:20:34,456 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 00:20:34,457 INFO L168 Benchmark]: Toolchain (without parser) took 1902.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 957.8 MB in the beginning and 1.1 GB in the end (delta: -110.4 MB). Peak memory consumption was 10.1 MB. Max. memory is 11.5 GB. [2019-11-20 00:20:34,458 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:20:34,458 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.74 ms. Allocated memory is still 1.0 GB. Free memory was 957.8 MB in the beginning and 947.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-20 00:20:34,459 INFO L168 Benchmark]: Boogie Procedure Inliner took 114.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -163.6 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. [2019-11-20 00:20:34,460 INFO L168 Benchmark]: Boogie Preprocessor took 51.53 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. [2019-11-20 00:20:34,460 INFO L168 Benchmark]: RCFGBuilder took 575.33 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: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. [2019-11-20 00:20:34,461 INFO L168 Benchmark]: TraceAbstraction took 827.48 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: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-11-20 00:20:34,462 INFO L168 Benchmark]: Witness Printer took 47.05 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. [2019-11-20 00:20:34,465 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 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 274.74 ms. Allocated memory is still 1.0 GB. Free memory was 957.8 MB in the beginning and 947.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 114.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -163.6 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.53 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 575.33 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: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 827.48 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: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * Witness Printer took 47.05 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. * 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: [L26] int a; [L27] double r; [L29] a = __VERIFIER_nondet_int() [L16] union u x, y; [L17] x.i[0] = 0x43300000 [L18] EXPR x.i[0] [L18] y.i[0] = x.i[0] [L19] x.i[1] = 0x80000000 [L20] EXPR x.i[1] [L20] y.i[1] = i ^ x.i[1] [L21] EXPR y.d [L21] EXPR x.d [L21] return y.d - x.d; [L21] return y.d - x.d; [L21] return y.d - x.d; [L31] r = cast(a) [L7] COND TRUE !(cond) [L7] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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...