./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-esbmc-regression/Double_div.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d6267741-f0bd-47e2-beda-23a4cb5edbb5/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d6267741-f0bd-47e2-beda-23a4cb5edbb5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d6267741-f0bd-47e2-beda-23a4cb5edbb5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d6267741-f0bd-47e2-beda-23a4cb5edbb5/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/Double_div.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d6267741-f0bd-47e2-beda-23a4cb5edbb5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d6267741-f0bd-47e2-beda-23a4cb5edbb5/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 8571d6e044ba86c3b82c24f6ff451bf497f2aedf ......................................................................................................................................................................................................................... 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_d6267741-f0bd-47e2-beda-23a4cb5edbb5/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d6267741-f0bd-47e2-beda-23a4cb5edbb5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d6267741-f0bd-47e2-beda-23a4cb5edbb5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d6267741-f0bd-47e2-beda-23a4cb5edbb5/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/Double_div.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d6267741-f0bd-47e2-beda-23a4cb5edbb5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d6267741-f0bd-47e2-beda-23a4cb5edbb5/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 8571d6e044ba86c3b82c24f6ff451bf497f2aedf ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 22:26:22,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:26:22,374 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:26:22,386 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:26:22,387 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:26:22,388 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:26:22,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:26:22,392 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:26:22,394 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:26:22,395 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:26:22,396 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:26:22,397 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:26:22,398 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:26:22,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:26:22,400 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:26:22,401 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:26:22,402 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:26:22,403 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:26:22,405 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:26:22,419 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:26:22,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:26:22,426 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:26:22,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:26:22,431 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:26:22,433 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:26:22,435 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:26:22,436 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:26:22,437 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:26:22,438 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:26:22,439 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:26:22,441 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:26:22,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:26:22,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:26:22,443 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:26:22,444 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:26:22,445 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:26:22,446 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:26:22,446 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:26:22,447 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:26:22,449 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:26:22,450 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:26:22,451 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d6267741-f0bd-47e2-beda-23a4cb5edbb5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 22:26:22,468 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:26:22,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:26:22,470 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:26:22,471 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:26:22,471 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:26:22,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:26:22,472 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:26:22,472 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 22:26:22,472 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:26:22,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:26:22,473 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 22:26:22,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:26:22,474 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 22:26:22,475 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:26:22,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:26:22,475 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:26:22,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 22:26:22,476 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:26:22,476 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:26:22,476 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:26:22,477 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:26:22,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:26:22,477 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:26:22,477 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:26:22,478 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 22:26:22,478 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 22:26:22,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 22:26:22,479 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 22:26:22,479 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_d6267741-f0bd-47e2-beda-23a4cb5edbb5/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 -> 8571d6e044ba86c3b82c24f6ff451bf497f2aedf [2019-11-15 22:26:22,538 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:26:22,549 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:26:22,553 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:26:22,554 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:26:22,554 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:26:22,555 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d6267741-f0bd-47e2-beda-23a4cb5edbb5/bin/uautomizer/../../sv-benchmarks/c/floats-esbmc-regression/Double_div.i [2019-11-15 22:26:22,614 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d6267741-f0bd-47e2-beda-23a4cb5edbb5/bin/uautomizer/data/046c5ab97/7a15f9ff102d4e3aa6c5015553cb4dd2/FLAG5197aa20d [2019-11-15 22:26:23,019 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:26:23,019 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d6267741-f0bd-47e2-beda-23a4cb5edbb5/sv-benchmarks/c/floats-esbmc-regression/Double_div.i [2019-11-15 22:26:23,025 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d6267741-f0bd-47e2-beda-23a4cb5edbb5/bin/uautomizer/data/046c5ab97/7a15f9ff102d4e3aa6c5015553cb4dd2/FLAG5197aa20d [2019-11-15 22:26:23,438 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d6267741-f0bd-47e2-beda-23a4cb5edbb5/bin/uautomizer/data/046c5ab97/7a15f9ff102d4e3aa6c5015553cb4dd2 [2019-11-15 22:26:23,441 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:26:23,443 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:26:23,446 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:26:23,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:26:23,450 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:26:23,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:26:23" (1/1) ... [2019-11-15 22:26:23,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a7e4ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:26:23, skipping insertion in model container [2019-11-15 22:26:23,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:26:23" (1/1) ... [2019-11-15 22:26:23,467 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:26:23,485 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:26:23,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:26:23,750 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:26:23,762 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:26:23,774 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:26:23,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:26:23 WrapperNode [2019-11-15 22:26:23,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:26:23,776 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:26:23,776 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:26:23,776 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:26:23,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:26:23" (1/1) ... [2019-11-15 22:26:23,789 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:26:23" (1/1) ... [2019-11-15 22:26:23,804 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:26:23,805 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:26:23,805 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:26:23,805 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:26:23,813 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:26:23" (1/1) ... [2019-11-15 22:26:23,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:26:23" (1/1) ... [2019-11-15 22:26:23,814 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:26:23" (1/1) ... [2019-11-15 22:26:23,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:26:23" (1/1) ... [2019-11-15 22:26:23,817 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:26:23" (1/1) ... [2019-11-15 22:26:23,821 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:26:23" (1/1) ... [2019-11-15 22:26:23,821 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:26:23" (1/1) ... [2019-11-15 22:26:23,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:26:23,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:26:23,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:26:23,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:26:23,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:26:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d6267741-f0bd-47e2-beda-23a4cb5edbb5/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 [2019-11-15 22:26:23,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:26:23,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:26:24,047 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:26:24,048 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-15 22:26:24,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:26:24 BoogieIcfgContainer [2019-11-15 22:26:24,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:26:24,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:26:24,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:26:24,055 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:26:24,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:26:23" (1/3) ... [2019-11-15 22:26:24,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@513624de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:26:24, skipping insertion in model container [2019-11-15 22:26:24,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:26:23" (2/3) ... [2019-11-15 22:26:24,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@513624de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:26:24, skipping insertion in model container [2019-11-15 22:26:24,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:26:24" (3/3) ... [2019-11-15 22:26:24,062 INFO L109 eAbstractionObserver]: Analyzing ICFG Double_div.i [2019-11-15 22:26:24,074 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:26:24,081 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 22:26:24,093 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 22:26:24,126 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:26:24,126 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 22:26:24,127 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:26:24,127 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:26:24,127 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:26:24,127 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:26:24,128 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:26:24,128 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:26:24,143 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-15 22:26:24,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-15 22:26:24,149 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:26:24,150 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-15 22:26:24,156 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:26:24,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:26:24,162 INFO L82 PathProgramCache]: Analyzing trace with hash 29805000, now seen corresponding path program 1 times [2019-11-15 22:26:24,169 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:26:24,169 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256417645] [2019-11-15 22:26:24,170 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:26:24,170 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:26:24,170 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:26:24,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:26:24,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:26:24,270 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:26:24,271 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 22:26:24,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 10:26:24 BoogieIcfgContainer [2019-11-15 22:26:24,288 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 22:26:24,288 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:26:24,289 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:26:24,289 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:26:24,289 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:26:24" (3/4) ... [2019-11-15 22:26:24,293 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 22:26:24,293 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:26:24,296 INFO L168 Benchmark]: Toolchain (without parser) took 851.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -171.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:26:24,297 INFO L168 Benchmark]: CDTParser took 0.21 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. [2019-11-15 22:26:24,298 INFO L168 Benchmark]: CACSL2BoogieTranslator took 329.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 951.4 MB in the beginning and 1.2 GB in the end (delta: -200.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-15 22:26:24,298 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.84 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. [2019-11-15 22:26:24,299 INFO L168 Benchmark]: Boogie Preprocessor took 18.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:26:24,300 INFO L168 Benchmark]: RCFGBuilder took 227.08 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: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2019-11-15 22:26:24,300 INFO L168 Benchmark]: TraceAbstraction took 236.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-15 22:26:24,301 INFO L168 Benchmark]: Witness Printer took 4.93 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. [2019-11-15 22:26:24,305 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 329.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 951.4 MB in the beginning and 1.2 GB in the end (delta: -200.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.84 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 18.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 227.08 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: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 236.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.93 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: 2]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 18, overapproximation of someBinaryArithmeticDOUBLEoperation at line 10. Possible FailurePath: [L9] double x = 1.0; [L10] double x1 = x/2.5; [L12] COND FALSE !(x1 != x) [L2] COND TRUE !(cond) [L2] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, 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-cad4683 [2019-11-15 22:26:26,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:26:26,829 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:26:26,842 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:26:26,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:26:26,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:26:26,845 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:26:26,848 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:26:26,850 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:26:26,851 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:26:26,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:26:26,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:26:26,854 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:26:26,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:26:26,856 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:26:26,857 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:26:26,858 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:26:26,859 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:26:26,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:26:26,864 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:26:26,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:26:26,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:26:26,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:26:26,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:26:26,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:26:26,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:26:26,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:26:26,874 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:26:26,875 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:26:26,876 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:26:26,876 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:26:26,877 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:26:26,878 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:26:26,879 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:26:26,880 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:26:26,881 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:26:26,881 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:26:26,882 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:26:26,882 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:26:26,883 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:26:26,884 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:26:26,885 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d6267741-f0bd-47e2-beda-23a4cb5edbb5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 22:26:26,902 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:26:26,902 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:26:26,903 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:26:26,904 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:26:26,904 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:26:26,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:26:26,905 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:26:26,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:26:26,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:26:26,905 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 22:26:26,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:26:26,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 22:26:26,906 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 22:26:26,906 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 22:26:26,907 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:26:26,907 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:26:26,907 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:26:26,908 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 22:26:26,908 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:26:26,908 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:26:26,908 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:26:26,909 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:26:26,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:26:26,909 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:26:26,910 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:26:26,910 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 22:26:26,910 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 22:26:26,910 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 22:26:26,911 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 22:26:26,911 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 22:26:26,911 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_d6267741-f0bd-47e2-beda-23a4cb5edbb5/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 -> 8571d6e044ba86c3b82c24f6ff451bf497f2aedf [2019-11-15 22:26:26,947 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:26:26,964 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:26:26,971 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:26:26,978 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:26:26,978 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:26:26,979 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d6267741-f0bd-47e2-beda-23a4cb5edbb5/bin/uautomizer/../../sv-benchmarks/c/floats-esbmc-regression/Double_div.i [2019-11-15 22:26:27,055 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d6267741-f0bd-47e2-beda-23a4cb5edbb5/bin/uautomizer/data/044ff8717/6c274ade951540869d11cce2a93e8648/FLAG46a162d41 [2019-11-15 22:26:27,464 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:26:27,465 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d6267741-f0bd-47e2-beda-23a4cb5edbb5/sv-benchmarks/c/floats-esbmc-regression/Double_div.i [2019-11-15 22:26:27,470 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d6267741-f0bd-47e2-beda-23a4cb5edbb5/bin/uautomizer/data/044ff8717/6c274ade951540869d11cce2a93e8648/FLAG46a162d41 [2019-11-15 22:26:27,864 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d6267741-f0bd-47e2-beda-23a4cb5edbb5/bin/uautomizer/data/044ff8717/6c274ade951540869d11cce2a93e8648 [2019-11-15 22:26:27,867 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:26:27,868 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:26:27,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:26:27,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:26:27,872 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:26:27,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:26:27" (1/1) ... [2019-11-15 22:26:27,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@86bfbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:26:27, skipping insertion in model container [2019-11-15 22:26:27,876 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:26:27" (1/1) ... [2019-11-15 22:26:27,883 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:26:27,895 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:26:28,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:26:28,036 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:26:28,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:26:28,066 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:26:28,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:26:28 WrapperNode [2019-11-15 22:26:28,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:26:28,068 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:26:28,068 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:26:28,068 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:26:28,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:26:28" (1/1) ... [2019-11-15 22:26:28,146 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:26:28" (1/1) ... [2019-11-15 22:26:28,164 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:26:28,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:26:28,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:26:28,164 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:26:28,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:26:28" (1/1) ... [2019-11-15 22:26:28,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:26:28" (1/1) ... [2019-11-15 22:26:28,172 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:26:28" (1/1) ... [2019-11-15 22:26:28,172 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:26:28" (1/1) ... [2019-11-15 22:26:28,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:26:28" (1/1) ... [2019-11-15 22:26:28,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:26:28" (1/1) ... [2019-11-15 22:26:28,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:26:28" (1/1) ... [2019-11-15 22:26:28,194 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:26:28,194 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:26:28,195 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:26:28,195 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:26:28,196 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:26:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d6267741-f0bd-47e2-beda-23a4cb5edbb5/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 [2019-11-15 22:26:28,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:26:28,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:26:30,600 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:26:30,600 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-15 22:26:30,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:26:30 BoogieIcfgContainer [2019-11-15 22:26:30,602 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:26:30,603 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:26:30,603 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:26:30,606 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:26:30,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:26:27" (1/3) ... [2019-11-15 22:26:30,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62fa405d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:26:30, skipping insertion in model container [2019-11-15 22:26:30,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:26:28" (2/3) ... [2019-11-15 22:26:30,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62fa405d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:26:30, skipping insertion in model container [2019-11-15 22:26:30,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:26:30" (3/3) ... [2019-11-15 22:26:30,610 INFO L109 eAbstractionObserver]: Analyzing ICFG Double_div.i [2019-11-15 22:26:30,620 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:26:30,631 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 22:26:30,641 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 22:26:30,662 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:26:30,663 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 22:26:30,663 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:26:30,663 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:26:30,664 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:26:30,664 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:26:30,664 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:26:30,664 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:26:30,677 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-15 22:26:30,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-15 22:26:30,682 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:26:30,683 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-15 22:26:30,685 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:26:30,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:26:30,689 INFO L82 PathProgramCache]: Analyzing trace with hash 29805000, now seen corresponding path program 1 times [2019-11-15 22:26:30,698 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:26:30,698 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [441669418] [2019-11-15 22:26:30,698 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d6267741-f0bd-47e2-beda-23a4cb5edbb5/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 [2019-11-15 22:26:30,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:26:30,914 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 22:26:30,918 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:26:32,208 WARN L191 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 11 [2019-11-15 22:26:32,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:26:32,219 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:26:34,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:26:34,015 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [441669418] [2019-11-15 22:26:34,015 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:26:34,016 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-11-15 22:26:34,016 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310977051] [2019-11-15 22:26:34,020 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 22:26:34,020 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:26:34,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 22:26:34,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 22:26:34,033 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 4 states. [2019-11-15 22:26:41,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:26:41,355 INFO L93 Difference]: Finished difference Result 20 states and 26 transitions. [2019-11-15 22:26:41,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 22:26:41,357 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-11-15 22:26:41,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:26:41,367 INFO L225 Difference]: With dead ends: 20 [2019-11-15 22:26:41,368 INFO L226 Difference]: Without dead ends: 8 [2019-11-15 22:26:41,371 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 22:26:41,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-11-15 22:26:41,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-11-15 22:26:41,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-15 22:26:41,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-11-15 22:26:41,404 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2019-11-15 22:26:41,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:26:41,404 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-11-15 22:26:41,405 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 22:26:41,405 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-11-15 22:26:41,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-15 22:26:41,405 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:26:41,406 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2019-11-15 22:26:41,622 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 22:26:41,623 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:26:41,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:26:41,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1368874232, now seen corresponding path program 1 times [2019-11-15 22:26:41,624 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:26:41,624 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [511742609] [2019-11-15 22:26:41,624 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d6267741-f0bd-47e2-beda-23a4cb5edbb5/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-15 22:26:42,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:26:42,177 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-15 22:26:42,178 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:26:48,685 WARN L191 SmtUtils]: Spent 2.07 s on a formula simplification that was a NOOP. DAG size: 13 [2019-11-15 22:26:48,692 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:26:48,692 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:27:02,823 WARN L191 SmtUtils]: Spent 1.70 s on a formula simplification that was a NOOP. DAG size: 7 [2019-11-15 22:27:05,253 WARN L838 $PredicateComparison]: unable to prove that (not (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven c_ULTIMATE.start_main_~x1~0 .cse1))) (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)))) is different from false [2019-11-15 22:27:07,692 WARN L860 $PredicateComparison]: unable to prove that (not (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven c_ULTIMATE.start_main_~x1~0 .cse1))) (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)))) is different from true [2019-11-15 22:27:07,693 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2019-11-15 22:27:07,693 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [511742609] [2019-11-15 22:27:07,694 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:27:07,694 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2019-11-15 22:27:07,694 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637525411] [2019-11-15 22:27:07,696 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 22:27:07,696 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:27:07,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 22:27:07,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=24, Unknown=5, NotChecked=10, Total=56 [2019-11-15 22:27:07,697 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 8 states. [2019-11-15 22:27:10,182 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (and (not (let ((.cse0 (fp.div roundNearestTiesToEven c_ULTIMATE.start_main_~x1~0 .cse1))) (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))) (not (fp.eq c_ULTIMATE.start_main_~x1~0 c_ULTIMATE.start_main_~x~0)) (= c_ULTIMATE.start_main_~x1~0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse1)))) is different from true [2019-11-15 22:27:23,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:27:23,195 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2019-11-15 22:27:23,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 22:27:23,196 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2019-11-15 22:27:23,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:27:23,197 INFO L225 Difference]: With dead ends: 14 [2019-11-15 22:27:23,197 INFO L226 Difference]: Without dead ends: 10 [2019-11-15 22:27:23,198 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 30.2s TimeCoverageRelationStatistics Valid=24, Invalid=33, Unknown=7, NotChecked=26, Total=90 [2019-11-15 22:27:23,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-11-15 22:27:23,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-11-15 22:27:23,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-15 22:27:23,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-11-15 22:27:23,201 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 7 [2019-11-15 22:27:23,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:27:23,201 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-11-15 22:27:23,201 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 22:27:23,201 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-11-15 22:27:23,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-15 22:27:23,202 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:27:23,202 INFO L380 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1] [2019-11-15 22:27:23,402 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 22:27:23,403 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:27:23,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:27:23,403 INFO L82 PathProgramCache]: Analyzing trace with hash -1174852536, now seen corresponding path program 2 times [2019-11-15 22:27:23,403 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:27:23,404 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1405490223] [2019-11-15 22:27:23,404 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d6267741-f0bd-47e2-beda-23a4cb5edbb5/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-15 22:27:24,227 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 22:27:24,227 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 22:27:24,290 WARN L254 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-15 22:27:24,292 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:27:35,108 WARN L191 SmtUtils]: Spent 3.07 s on a formula simplification that was a NOOP. DAG size: 15 [2019-11-15 22:27:35,111 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:27:35,111 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:27:45,553 WARN L860 $PredicateComparison]: unable to prove that (or (not (fp.eq (fp.div roundNearestTiesToEven c_ULTIMATE.start_main_~x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_ULTIMATE.start_main_~x1~0)) (fp.eq c_ULTIMATE.start_main_~x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) is different from true [2019-11-15 22:27:48,040 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven c_ULTIMATE.start_main_~x1~0 .cse1))) (or (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)) (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))) is different from false [2019-11-15 22:27:50,488 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven c_ULTIMATE.start_main_~x1~0 .cse1))) (or (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)) (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))) is different from true [2019-11-15 22:27:53,137 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven c_ULTIMATE.start_main_~x1~0 .cse1) .cse1))) (or (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)) (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))) is different from false [2019-11-15 22:27:55,832 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven c_ULTIMATE.start_main_~x1~0 .cse1) .cse1))) (or (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)) (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))) is different from true [2019-11-15 22:27:58,713 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven c_ULTIMATE.start_main_~x1~0 .cse1) .cse1) .cse1))) (or (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)) (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))) is different from false [2019-11-15 22:28:01,582 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven c_ULTIMATE.start_main_~x1~0 .cse1) .cse1) .cse1))) (or (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)) (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))) is different from true [2019-11-15 22:28:01,583 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 10 not checked. [2019-11-15 22:28:01,584 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1405490223] [2019-11-15 22:28:01,584 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:28:01,584 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 13 [2019-11-15 22:28:01,585 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160650426] [2019-11-15 22:28:01,585 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-15 22:28:01,585 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:28:01,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-15 22:28:01,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=70, Unknown=9, NotChecked=76, Total=182 [2019-11-15 22:28:01,587 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 14 states. [2019-11-15 22:28:04,498 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (and (let ((.cse0 (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven c_ULTIMATE.start_main_~x1~0 .cse1) .cse1) .cse1))) (or (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)) (fp.eq .cse0 .cse2))) (or (not (fp.eq c_ULTIMATE.start_main_~x1~0 c_ULTIMATE.start_main_~x~0)) (fp.eq c_ULTIMATE.start_main_~x~0 .cse2)) (= c_ULTIMATE.start_main_~x1~0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse1)))) is different from true [2019-11-15 22:28:07,188 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (and (= (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse0) .cse0) c_ULTIMATE.start_main_~x1~0) (let ((.cse1 (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven c_ULTIMATE.start_main_~x1~0 .cse0) .cse0))) (or (not (fp.eq (fp.div roundNearestTiesToEven .cse1 .cse0) .cse1)) (fp.eq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) is different from true [2019-11-15 22:28:09,676 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (and (= (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse0) .cse0) .cse0) c_ULTIMATE.start_main_~x1~0) (let ((.cse1 (fp.div roundNearestTiesToEven c_ULTIMATE.start_main_~x1~0 .cse0))) (or (not (fp.eq (fp.div roundNearestTiesToEven .cse1 .cse0) .cse1)) (fp.eq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) is different from true [2019-11-15 22:28:19,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:28:19,546 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2019-11-15 22:28:19,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-15 22:28:19,547 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 9 [2019-11-15 22:28:19,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:28:19,548 INFO L225 Difference]: With dead ends: 18 [2019-11-15 22:28:19,548 INFO L226 Difference]: Without dead ends: 12 [2019-11-15 22:28:19,549 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 48.1s TimeCoverageRelationStatistics Valid=38, Invalid=88, Unknown=12, NotChecked=168, Total=306 [2019-11-15 22:28:19,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-15 22:28:19,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-15 22:28:19,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-15 22:28:19,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-11-15 22:28:19,553 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2019-11-15 22:28:19,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:28:19,554 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-11-15 22:28:19,554 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-15 22:28:19,554 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-11-15 22:28:19,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 22:28:19,555 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:28:19,555 INFO L380 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1] [2019-11-15 22:28:19,755 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-15 22:28:19,756 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:28:19,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:28:19,756 INFO L82 PathProgramCache]: Analyzing trace with hash 596403592, now seen corresponding path program 3 times [2019-11-15 22:28:19,757 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 22:28:19,757 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1098630443] [2019-11-15 22:28:19,757 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d6267741-f0bd-47e2-beda-23a4cb5edbb5/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 [2019-11-15 22:28:20,688 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-11-15 22:28:20,688 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 22:28:20,753 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-15 22:28:20,754 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:28:24,342 WARN L191 SmtUtils]: Spent 1.77 s on a formula simplification that was a NOOP. DAG size: 7 [2019-11-15 22:28:26,835 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((v_ULTIMATE.start_main_~x~0_14 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.div roundNearestTiesToEven v_ULTIMATE.start_main_~x~0_14 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))))) (and (not (fp.eq .cse0 v_ULTIMATE.start_main_~x~0_14)) (= .cse0 c_ULTIMATE.start_main_~x~0)))) (= (fp.div roundNearestTiesToEven c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_ULTIMATE.start_main_~x1~0)) is different from false [2019-11-15 22:28:29,100 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((v_ULTIMATE.start_main_~x~0_14 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.div roundNearestTiesToEven v_ULTIMATE.start_main_~x~0_14 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))))) (and (not (fp.eq .cse0 v_ULTIMATE.start_main_~x~0_14)) (= .cse0 c_ULTIMATE.start_main_~x~0)))) (= (fp.div roundNearestTiesToEven c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_ULTIMATE.start_main_~x1~0)) is different from true [2019-11-15 22:28:31,573 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((v_ULTIMATE.start_main_~x~0_14 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.div roundNearestTiesToEven v_ULTIMATE.start_main_~x~0_14 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))))) (and (not (fp.eq .cse0 v_ULTIMATE.start_main_~x~0_14)) (= .cse0 c_ULTIMATE.start_main_~x~0)))) (fp.eq (fp.div roundNearestTiesToEven c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_ULTIMATE.start_main_~x~0)) is different from false [2019-11-15 22:28:33,746 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 22:28:46,418 WARN L838 $PredicateComparison]: unable to prove that (or (and (exists ((v_ULTIMATE.start_main_~x~0_14 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_ULTIMATE.start_main_~x~0_14 .cse1))) (and (not (fp.eq .cse0 v_ULTIMATE.start_main_~x~0_14)) (not (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (and (exists ((v_ULTIMATE.start_main_~x~0_14 (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse2 (fp.div roundNearestTiesToEven v_ULTIMATE.start_main_~x~0_14 .cse3))) (and (not (fp.eq .cse2 v_ULTIMATE.start_main_~x~0_14)) (fp.eq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (fp.eq (fp.div roundNearestTiesToEven .cse2 .cse3) .cse2))))) (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)))) is different from false [2019-11-15 22:28:53,862 WARN L838 $PredicateComparison]: unable to prove that (exists ((v_ULTIMATE.start_main_~x~0_14 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_ULTIMATE.start_main_~x~0_14 .cse1))) (and (not (fp.eq .cse0 v_ULTIMATE.start_main_~x~0_14)) (not (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) is different from false [2019-11-15 22:28:56,258 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_ULTIMATE.start_main_~x~0_14 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_ULTIMATE.start_main_~x~0_14 .cse1))) (and (not (fp.eq .cse0 v_ULTIMATE.start_main_~x~0_14)) (not (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) is different from true [2019-11-15 22:28:56,260 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 1 not checked. [2019-11-15 22:28:56,261 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 22:29:07,657 WARN L838 $PredicateComparison]: unable to prove that (or (fp.eq c_ULTIMATE.start_main_~x1~0 c_ULTIMATE.start_main_~x~0) (not (fp.eq (fp.div roundNearestTiesToEven c_ULTIMATE.start_main_~x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_ULTIMATE.start_main_~x1~0)) (fp.eq c_ULTIMATE.start_main_~x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) is different from false [2019-11-15 22:29:16,053 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~x~0_16 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_ULTIMATE.start_main_~x~0_16 .cse1))) (or (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)) (fp.eq .cse0 v_ULTIMATE.start_main_~x~0_16) (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) is different from false [2019-11-15 22:29:18,485 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~x~0_16 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_ULTIMATE.start_main_~x~0_16 .cse1))) (or (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)) (fp.eq .cse0 v_ULTIMATE.start_main_~x~0_16) (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) is different from true [2019-11-15 22:29:38,011 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 11 not checked. [2019-11-15 22:29:38,012 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1098630443] [2019-11-15 22:29:38,012 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:29:38,012 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2019-11-15 22:29:38,013 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151990226] [2019-11-15 22:29:38,013 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-15 22:29:38,013 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 22:29:38,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-15 22:29:38,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=20, Unknown=12, NotChecked=78, Total=132 [2019-11-15 22:29:38,014 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 12 states. [2019-11-15 22:29:40,250 WARN L838 $PredicateComparison]: unable to prove that (and (or (not (fp.eq c_ULTIMATE.start_main_~x1~0 c_ULTIMATE.start_main_~x~0)) (fp.eq c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (= (fp.div roundNearestTiesToEven c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_ULTIMATE.start_main_~x1~0) (forall ((v_ULTIMATE.start_main_~x~0_16 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_ULTIMATE.start_main_~x~0_16 .cse1))) (or (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)) (fp.eq .cse0 v_ULTIMATE.start_main_~x~0_16) (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))))) is different from false [2019-11-15 22:29:42,773 WARN L860 $PredicateComparison]: unable to prove that (and (or (not (fp.eq c_ULTIMATE.start_main_~x1~0 c_ULTIMATE.start_main_~x~0)) (fp.eq c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (= (fp.div roundNearestTiesToEven c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_ULTIMATE.start_main_~x1~0) (forall ((v_ULTIMATE.start_main_~x~0_16 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_ULTIMATE.start_main_~x~0_16 .cse1))) (or (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)) (fp.eq .cse0 v_ULTIMATE.start_main_~x~0_16) (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))))) is different from true [2019-11-15 22:29:45,817 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (and (or (fp.eq c_ULTIMATE.start_main_~x1~0 c_ULTIMATE.start_main_~x~0) (not (fp.eq (fp.div roundNearestTiesToEven c_ULTIMATE.start_main_~x1~0 .cse0) c_ULTIMATE.start_main_~x1~0)) (fp.eq c_ULTIMATE.start_main_~x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (exists ((v_ULTIMATE.start_main_~x~0_14 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.div roundNearestTiesToEven v_ULTIMATE.start_main_~x~0_14 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))))) (and (not (fp.eq .cse1 v_ULTIMATE.start_main_~x~0_14)) (= .cse1 c_ULTIMATE.start_main_~x~0)))) (= (fp.div roundNearestTiesToEven c_ULTIMATE.start_main_~x~0 .cse0) c_ULTIMATE.start_main_~x1~0) (forall ((v_ULTIMATE.start_main_~x~0_16 (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse2 (fp.div roundNearestTiesToEven v_ULTIMATE.start_main_~x~0_16 .cse3))) (or (not (fp.eq (fp.div roundNearestTiesToEven .cse2 .cse3) .cse2)) (fp.eq .cse2 v_ULTIMATE.start_main_~x~0_16) (fp.eq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))))) is different from false [2019-11-15 22:29:48,492 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (and (or (fp.eq c_ULTIMATE.start_main_~x1~0 c_ULTIMATE.start_main_~x~0) (not (fp.eq (fp.div roundNearestTiesToEven c_ULTIMATE.start_main_~x1~0 .cse0) c_ULTIMATE.start_main_~x1~0)) (fp.eq c_ULTIMATE.start_main_~x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (exists ((v_ULTIMATE.start_main_~x~0_14 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.div roundNearestTiesToEven v_ULTIMATE.start_main_~x~0_14 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))))) (and (not (fp.eq .cse1 v_ULTIMATE.start_main_~x~0_14)) (= .cse1 c_ULTIMATE.start_main_~x~0)))) (= (fp.div roundNearestTiesToEven c_ULTIMATE.start_main_~x~0 .cse0) c_ULTIMATE.start_main_~x1~0) (forall ((v_ULTIMATE.start_main_~x~0_16 (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse2 (fp.div roundNearestTiesToEven v_ULTIMATE.start_main_~x~0_16 .cse3))) (or (not (fp.eq (fp.div roundNearestTiesToEven .cse2 .cse3) .cse2)) (fp.eq .cse2 v_ULTIMATE.start_main_~x~0_16) (fp.eq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))))) is different from true [2019-11-15 22:29:51,568 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.eq c_ULTIMATE.start_main_~x1~0 c_ULTIMATE.start_main_~x~0)) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (and (or .cse0 (not (fp.eq (fp.div roundNearestTiesToEven c_ULTIMATE.start_main_~x1~0 .cse1) c_ULTIMATE.start_main_~x1~0)) (fp.eq c_ULTIMATE.start_main_~x1~0 .cse2)) (exists ((v_ULTIMATE.start_main_~x~0_14 (_ FloatingPoint 11 53))) (let ((.cse3 (fp.div roundNearestTiesToEven v_ULTIMATE.start_main_~x~0_14 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))))) (and (not (fp.eq .cse3 v_ULTIMATE.start_main_~x~0_14)) (= .cse3 c_ULTIMATE.start_main_~x~0)))) (or (not .cse0) (fp.eq c_ULTIMATE.start_main_~x~0 .cse2)) (= (fp.div roundNearestTiesToEven c_ULTIMATE.start_main_~x~0 .cse1) c_ULTIMATE.start_main_~x1~0) (forall ((v_ULTIMATE.start_main_~x~0_16 (_ FloatingPoint 11 53))) (let ((.cse5 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse4 (fp.div roundNearestTiesToEven v_ULTIMATE.start_main_~x~0_16 .cse5))) (or (not (fp.eq (fp.div roundNearestTiesToEven .cse4 .cse5) .cse4)) (fp.eq .cse4 v_ULTIMATE.start_main_~x~0_16) (fp.eq .cse4 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))))) is different from false [2019-11-15 22:29:54,225 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.eq c_ULTIMATE.start_main_~x1~0 c_ULTIMATE.start_main_~x~0)) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (and (or .cse0 (not (fp.eq (fp.div roundNearestTiesToEven c_ULTIMATE.start_main_~x1~0 .cse1) c_ULTIMATE.start_main_~x1~0)) (fp.eq c_ULTIMATE.start_main_~x1~0 .cse2)) (exists ((v_ULTIMATE.start_main_~x~0_14 (_ FloatingPoint 11 53))) (let ((.cse3 (fp.div roundNearestTiesToEven v_ULTIMATE.start_main_~x~0_14 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))))) (and (not (fp.eq .cse3 v_ULTIMATE.start_main_~x~0_14)) (= .cse3 c_ULTIMATE.start_main_~x~0)))) (or (not .cse0) (fp.eq c_ULTIMATE.start_main_~x~0 .cse2)) (= (fp.div roundNearestTiesToEven c_ULTIMATE.start_main_~x~0 .cse1) c_ULTIMATE.start_main_~x1~0) (forall ((v_ULTIMATE.start_main_~x~0_16 (_ FloatingPoint 11 53))) (let ((.cse5 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse4 (fp.div roundNearestTiesToEven v_ULTIMATE.start_main_~x~0_16 .cse5))) (or (not (fp.eq (fp.div roundNearestTiesToEven .cse4 .cse5) .cse4)) (fp.eq .cse4 v_ULTIMATE.start_main_~x~0_16) (fp.eq .cse4 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))))) is different from true [2019-11-15 22:29:56,699 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((v_ULTIMATE.start_main_~x~0_14 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.div roundNearestTiesToEven v_ULTIMATE.start_main_~x~0_14 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))))) (and (not (fp.eq .cse0 v_ULTIMATE.start_main_~x~0_14)) (= .cse0 c_ULTIMATE.start_main_~x~0)))) (fp.eq (fp.div roundNearestTiesToEven c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_ULTIMATE.start_main_~x~0) (fp.eq c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) is different from false [2019-11-15 22:29:58,932 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((v_ULTIMATE.start_main_~x~0_14 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.div roundNearestTiesToEven v_ULTIMATE.start_main_~x~0_14 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))))) (and (not (fp.eq .cse0 v_ULTIMATE.start_main_~x~0_14)) (= .cse0 c_ULTIMATE.start_main_~x~0)))) (fp.eq (fp.div roundNearestTiesToEven c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_ULTIMATE.start_main_~x~0) (fp.eq c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) is different from true [2019-11-15 22:30:01,402 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (and (or (and (exists ((v_ULTIMATE.start_main_~x~0_14 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_ULTIMATE.start_main_~x~0_14 .cse1))) (and (not (fp.eq .cse0 v_ULTIMATE.start_main_~x~0_14)) (not (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) .cse2) (and (exists ((v_ULTIMATE.start_main_~x~0_14 (_ FloatingPoint 11 53))) (let ((.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse3 (fp.div roundNearestTiesToEven v_ULTIMATE.start_main_~x~0_14 .cse4))) (and (not (fp.eq .cse3 v_ULTIMATE.start_main_~x~0_14)) (fp.eq .cse3 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (fp.eq (fp.div roundNearestTiesToEven .cse3 .cse4) .cse3))))) (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)))) (not .cse2))) is different from false [2019-11-15 22:30:01,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:30:01,409 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2019-11-15 22:30:01,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 22:30:01,410 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 11 [2019-11-15 22:30:01,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:30:01,410 INFO L225 Difference]: With dead ends: 12 [2019-11-15 22:30:01,410 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 22:30:01,411 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 11 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 61.4s TimeCoverageRelationStatistics Valid=32, Invalid=21, Unknown=21, NotChecked=198, Total=272 [2019-11-15 22:30:01,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 22:30:01,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 22:30:01,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 22:30:01,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 22:30:01,412 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-11-15 22:30:01,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:30:01,412 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:30:01,412 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-15 22:30:01,412 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 22:30:01,412 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 22:30:01,613 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-15 22:30:01,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 22:31:16,509 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2019-11-15 22:31:16,510 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:221) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:131) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:92) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.UndoableWrapperScript.push(UndoableWrapperScript.java:53) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.pushContext(SimplifyDDA.java:737) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walkParam(SimplifyDDA.java:526) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:412) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:178) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SmtUtils.simplify(SmtUtils.java:162) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SmtUtils.simplify(SmtUtils.java:132) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SmtUtils.simplifyWithStatistics(SmtUtils.java:210) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter(HoareAnnotationComposer.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.(HoareAnnotationComposer.java:105) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeCFGHoareAnnotation(BasicCegarLoop.java:978) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:344) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 34 more [2019-11-15 22:31:16,514 INFO L168 Benchmark]: Toolchain (without parser) took 288645.85 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 951.0 MB in the beginning and 964.5 MB in the end (delta: -13.5 MB). Peak memory consumption was 97.6 MB. Max. memory is 11.5 GB. [2019-11-15 22:31:16,515 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:31:16,515 INFO L168 Benchmark]: CACSL2BoogieTranslator took 198.51 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-15 22:31:16,516 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.74 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -166.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. [2019-11-15 22:31:16,517 INFO L168 Benchmark]: Boogie Preprocessor took 30.36 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-15 22:31:16,517 INFO L168 Benchmark]: RCFGBuilder took 2407.42 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: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2019-11-15 22:31:16,524 INFO L168 Benchmark]: TraceAbstraction took 285909.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 964.5 MB in the end (delta: 121.0 MB). Peak memory consumption was 121.0 MB. Max. memory is 11.5 GB. [2019-11-15 22:31:16,532 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 198.51 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 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 95.74 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -166.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.36 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2407.42 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: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 285909.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 964.5 MB in the end (delta: 121.0 MB). Peak memory consumption was 121.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...