./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2fa515e9-39cd-442e-9adc-5fa6826ba974/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2fa515e9-39cd-442e-9adc-5fa6826ba974/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2fa515e9-39cd-442e-9adc-5fa6826ba974/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2fa515e9-39cd-442e-9adc-5fa6826ba974/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2fa515e9-39cd-442e-9adc-5fa6826ba974/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2fa515e9-39cd-442e-9adc-5fa6826ba974/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 0e04f2515dd5c7ce697460622800d33932bf1903 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_2fa515e9-39cd-442e-9adc-5fa6826ba974/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2fa515e9-39cd-442e-9adc-5fa6826ba974/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2fa515e9-39cd-442e-9adc-5fa6826ba974/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2fa515e9-39cd-442e-9adc-5fa6826ba974/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2fa515e9-39cd-442e-9adc-5fa6826ba974/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2fa515e9-39cd-442e-9adc-5fa6826ba974/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 0e04f2515dd5c7ce697460622800d33932bf1903 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:53:51,914 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:53:51,916 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:53:51,931 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:53:51,931 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:53:51,932 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:53:51,934 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:53:51,943 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:53:51,948 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:53:51,952 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:53:51,953 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:53:51,954 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:53:51,954 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:53:51,956 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:53:51,957 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:53:51,958 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:53:51,959 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:53:51,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:53:51,962 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:53:51,966 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:53:51,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:53:51,973 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:53:51,974 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:53:51,975 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:53:51,978 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:53:51,978 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:53:51,978 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:53:51,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:53:51,980 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:53:51,981 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:53:51,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:53:51,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:53:51,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:53:51,984 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:53:51,985 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:53:51,985 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:53:51,986 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:53:51,986 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:53:51,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:53:51,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:53:51,988 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:53:51,989 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2fa515e9-39cd-442e-9adc-5fa6826ba974/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:53:52,014 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:53:52,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:53:52,015 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:53:52,015 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:53:52,015 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:53:52,015 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:53:52,016 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:53:52,016 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:53:52,016 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:53:52,016 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:53:52,016 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:53:52,017 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:53:52,017 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:53:52,017 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:53:52,017 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:53:52,017 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:53:52,017 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:53:52,018 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:53:52,018 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:53:52,018 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:53:52,018 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:53:52,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:53:52,019 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:53:52,019 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:53:52,019 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:53:52,019 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:53:52,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:53:52,020 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:53:52,020 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_2fa515e9-39cd-442e-9adc-5fa6826ba974/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 -> 0e04f2515dd5c7ce697460622800d33932bf1903 [2019-11-25 08:53:52,205 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:53:52,221 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:53:52,224 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:53:52,225 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:53:52,225 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:53:52,227 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2fa515e9-39cd-442e-9adc-5fa6826ba974/bin/uautomizer/../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2019-11-25 08:53:52,289 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2fa515e9-39cd-442e-9adc-5fa6826ba974/bin/uautomizer/data/836b12824/2848736542984a7f93e1f180b0dd61cc/FLAGd04cc7c15 [2019-11-25 08:53:52,729 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:53:52,734 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2fa515e9-39cd-442e-9adc-5fa6826ba974/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2019-11-25 08:53:52,743 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2fa515e9-39cd-442e-9adc-5fa6826ba974/bin/uautomizer/data/836b12824/2848736542984a7f93e1f180b0dd61cc/FLAGd04cc7c15 [2019-11-25 08:53:53,096 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2fa515e9-39cd-442e-9adc-5fa6826ba974/bin/uautomizer/data/836b12824/2848736542984a7f93e1f180b0dd61cc [2019-11-25 08:53:53,099 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:53:53,100 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:53:53,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:53:53,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:53:53,104 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:53:53,106 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:53:53" (1/1) ... [2019-11-25 08:53:53,108 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35cdf9e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:53, skipping insertion in model container [2019-11-25 08:53:53,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:53:53" (1/1) ... [2019-11-25 08:53:53,116 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:53:53,145 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:53:53,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:53:53,477 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:53:53,526 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:53:53,538 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:53:53,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:53 WrapperNode [2019-11-25 08:53:53,539 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:53:53,539 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:53:53,539 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:53:53,539 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:53:53,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:53" (1/1) ... [2019-11-25 08:53:53,555 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:53" (1/1) ... [2019-11-25 08:53:53,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:53:53,584 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:53:53,584 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:53:53,584 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:53:53,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:53" (1/1) ... [2019-11-25 08:53:53,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:53" (1/1) ... [2019-11-25 08:53:53,597 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:53" (1/1) ... [2019-11-25 08:53:53,598 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:53" (1/1) ... [2019-11-25 08:53:53,604 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:53" (1/1) ... [2019-11-25 08:53:53,611 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:53" (1/1) ... [2019-11-25 08:53:53,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:53" (1/1) ... [2019-11-25 08:53:53,618 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:53:53,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:53:53,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:53:53,618 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:53:53,619 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2fa515e9-39cd-442e-9adc-5fa6826ba974/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 [2019-11-25 08:53:53,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:53:53,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:53:54,312 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:53:54,312 INFO L284 CfgBuilder]: Removed 30 assume(true) statements. [2019-11-25 08:53:54,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:54 BoogieIcfgContainer [2019-11-25 08:53:54,313 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:53:54,314 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:53:54,314 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:53:54,317 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:53:54,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:53:53" (1/3) ... [2019-11-25 08:53:54,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c24f1f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:53:54, skipping insertion in model container [2019-11-25 08:53:54,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:53" (2/3) ... [2019-11-25 08:53:54,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c24f1f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:53:54, skipping insertion in model container [2019-11-25 08:53:54,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:54" (3/3) ... [2019-11-25 08:53:54,321 INFO L109 eAbstractionObserver]: Analyzing ICFG soft_float_1-3a.c.cil.c [2019-11-25 08:53:54,329 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:53:54,335 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-11-25 08:53:54,345 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-11-25 08:53:54,376 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:53:54,376 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:53:54,376 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:53:54,376 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:53:54,377 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:53:54,377 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:53:54,377 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:53:54,377 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:53:54,411 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2019-11-25 08:53:54,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-25 08:53:54,430 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:54,432 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:54,433 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:54,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:54,438 INFO L82 PathProgramCache]: Analyzing trace with hash 934616753, now seen corresponding path program 1 times [2019-11-25 08:53:54,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:54,445 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183069122] [2019-11-25 08:53:54,445 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:54,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:54,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:54,788 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183069122] [2019-11-25 08:53:54,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:54,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-25 08:53:54,792 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269362894] [2019-11-25 08:53:54,796 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 08:53:54,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:53:54,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 08:53:54,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:53:54,812 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 8 states. [2019-11-25 08:53:56,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:56,406 INFO L93 Difference]: Finished difference Result 454 states and 688 transitions. [2019-11-25 08:53:56,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-25 08:53:56,408 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2019-11-25 08:53:56,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:56,422 INFO L225 Difference]: With dead ends: 454 [2019-11-25 08:53:56,423 INFO L226 Difference]: Without dead ends: 337 [2019-11-25 08:53:56,426 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2019-11-25 08:53:56,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2019-11-25 08:53:56,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 133. [2019-11-25 08:53:56,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2019-11-25 08:53:56,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 191 transitions. [2019-11-25 08:53:56,508 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 191 transitions. Word has length 17 [2019-11-25 08:53:56,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:56,508 INFO L462 AbstractCegarLoop]: Abstraction has 133 states and 191 transitions. [2019-11-25 08:53:56,509 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 08:53:56,509 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 191 transitions. [2019-11-25 08:53:56,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-25 08:53:56,510 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:56,511 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:56,512 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:56,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:56,513 INFO L82 PathProgramCache]: Analyzing trace with hash 934676335, now seen corresponding path program 1 times [2019-11-25 08:53:56,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:56,513 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007816341] [2019-11-25 08:53:56,513 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:56,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:56,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:56,739 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007816341] [2019-11-25 08:53:56,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:56,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:53:56,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56863178] [2019-11-25 08:53:56,741 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:53:56,741 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:53:56,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:53:56,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:53:56,741 INFO L87 Difference]: Start difference. First operand 133 states and 191 transitions. Second operand 7 states. [2019-11-25 08:53:57,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:57,006 INFO L93 Difference]: Finished difference Result 288 states and 410 transitions. [2019-11-25 08:53:57,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-25 08:53:57,006 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2019-11-25 08:53:57,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:57,008 INFO L225 Difference]: With dead ends: 288 [2019-11-25 08:53:57,008 INFO L226 Difference]: Without dead ends: 204 [2019-11-25 08:53:57,010 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-25 08:53:57,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2019-11-25 08:53:57,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 193. [2019-11-25 08:53:57,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2019-11-25 08:53:57,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 274 transitions. [2019-11-25 08:53:57,026 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 274 transitions. Word has length 17 [2019-11-25 08:53:57,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:57,026 INFO L462 AbstractCegarLoop]: Abstraction has 193 states and 274 transitions. [2019-11-25 08:53:57,027 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:53:57,027 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 274 transitions. [2019-11-25 08:53:57,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-25 08:53:57,028 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:57,028 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:57,029 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:57,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:57,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1341099622, now seen corresponding path program 1 times [2019-11-25 08:53:57,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:57,030 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700487803] [2019-11-25 08:53:57,030 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:57,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:57,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:57,242 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700487803] [2019-11-25 08:53:57,242 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:57,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-25 08:53:57,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699794907] [2019-11-25 08:53:57,243 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 08:53:57,243 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:53:57,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 08:53:57,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:53:57,244 INFO L87 Difference]: Start difference. First operand 193 states and 274 transitions. Second operand 8 states. [2019-11-25 08:53:57,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:57,660 INFO L93 Difference]: Finished difference Result 304 states and 404 transitions. [2019-11-25 08:53:57,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-25 08:53:57,661 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2019-11-25 08:53:57,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:57,663 INFO L225 Difference]: With dead ends: 304 [2019-11-25 08:53:57,663 INFO L226 Difference]: Without dead ends: 256 [2019-11-25 08:53:57,664 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2019-11-25 08:53:57,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2019-11-25 08:53:57,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 182. [2019-11-25 08:53:57,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2019-11-25 08:53:57,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 256 transitions. [2019-11-25 08:53:57,685 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 256 transitions. Word has length 21 [2019-11-25 08:53:57,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:57,686 INFO L462 AbstractCegarLoop]: Abstraction has 182 states and 256 transitions. [2019-11-25 08:53:57,686 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 08:53:57,686 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 256 transitions. [2019-11-25 08:53:57,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-25 08:53:57,698 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:57,698 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:57,698 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:57,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:57,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1901024439, now seen corresponding path program 1 times [2019-11-25 08:53:57,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:57,699 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204139281] [2019-11-25 08:53:57,699 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:57,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:57,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:57,752 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204139281] [2019-11-25 08:53:57,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:57,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:53:57,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820231397] [2019-11-25 08:53:57,753 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:53:57,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:53:57,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:53:57,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:53:57,754 INFO L87 Difference]: Start difference. First operand 182 states and 256 transitions. Second operand 3 states. [2019-11-25 08:53:57,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:57,779 INFO L93 Difference]: Finished difference Result 336 states and 472 transitions. [2019-11-25 08:53:57,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:53:57,781 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-11-25 08:53:57,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:57,783 INFO L225 Difference]: With dead ends: 336 [2019-11-25 08:53:57,783 INFO L226 Difference]: Without dead ends: 261 [2019-11-25 08:53:57,786 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:53:57,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2019-11-25 08:53:57,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 232. [2019-11-25 08:53:57,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2019-11-25 08:53:57,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 321 transitions. [2019-11-25 08:53:57,806 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 321 transitions. Word has length 25 [2019-11-25 08:53:57,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:57,806 INFO L462 AbstractCegarLoop]: Abstraction has 232 states and 321 transitions. [2019-11-25 08:53:57,806 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:53:57,806 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 321 transitions. [2019-11-25 08:53:57,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-25 08:53:57,808 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:57,808 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:57,808 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:57,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:57,809 INFO L82 PathProgramCache]: Analyzing trace with hash 186737553, now seen corresponding path program 1 times [2019-11-25 08:53:57,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:57,809 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299566251] [2019-11-25 08:53:57,809 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:57,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:57,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:57,961 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299566251] [2019-11-25 08:53:57,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:57,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:53:57,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600263985] [2019-11-25 08:53:57,962 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-25 08:53:57,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:53:57,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:53:57,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:53:57,963 INFO L87 Difference]: Start difference. First operand 232 states and 321 transitions. Second operand 6 states. [2019-11-25 08:53:58,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:58,150 INFO L93 Difference]: Finished difference Result 358 states and 490 transitions. [2019-11-25 08:53:58,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-25 08:53:58,151 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-11-25 08:53:58,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:58,153 INFO L225 Difference]: With dead ends: 358 [2019-11-25 08:53:58,153 INFO L226 Difference]: Without dead ends: 193 [2019-11-25 08:53:58,156 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-11-25 08:53:58,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2019-11-25 08:53:58,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 182. [2019-11-25 08:53:58,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2019-11-25 08:53:58,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 248 transitions. [2019-11-25 08:53:58,168 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 248 transitions. Word has length 25 [2019-11-25 08:53:58,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:58,169 INFO L462 AbstractCegarLoop]: Abstraction has 182 states and 248 transitions. [2019-11-25 08:53:58,169 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-25 08:53:58,169 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 248 transitions. [2019-11-25 08:53:58,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-25 08:53:58,170 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:58,171 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:58,171 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:58,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:58,171 INFO L82 PathProgramCache]: Analyzing trace with hash -873114857, now seen corresponding path program 1 times [2019-11-25 08:53:58,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:58,172 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202663287] [2019-11-25 08:53:58,172 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:58,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:58,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:58,235 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202663287] [2019-11-25 08:53:58,235 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:58,235 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:53:58,236 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796756215] [2019-11-25 08:53:58,236 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:53:58,236 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:53:58,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:53:58,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:53:58,237 INFO L87 Difference]: Start difference. First operand 182 states and 248 transitions. Second operand 5 states. [2019-11-25 08:53:58,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:58,318 INFO L93 Difference]: Finished difference Result 313 states and 430 transitions. [2019-11-25 08:53:58,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:53:58,319 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-11-25 08:53:58,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:58,321 INFO L225 Difference]: With dead ends: 313 [2019-11-25 08:53:58,321 INFO L226 Difference]: Without dead ends: 238 [2019-11-25 08:53:58,321 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:53:58,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2019-11-25 08:53:58,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 190. [2019-11-25 08:53:58,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2019-11-25 08:53:58,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 252 transitions. [2019-11-25 08:53:58,334 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 252 transitions. Word has length 29 [2019-11-25 08:53:58,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:58,334 INFO L462 AbstractCegarLoop]: Abstraction has 190 states and 252 transitions. [2019-11-25 08:53:58,334 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:53:58,335 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 252 transitions. [2019-11-25 08:53:58,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-25 08:53:58,336 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:58,336 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:58,336 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:58,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:58,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1737423153, now seen corresponding path program 1 times [2019-11-25 08:53:58,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:58,337 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618363978] [2019-11-25 08:53:58,337 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:58,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:58,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:58,525 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:53:58,526 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:53:58,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:53:58 BoogieIcfgContainer [2019-11-25 08:53:58,572 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:53:58,573 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:53:58,573 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:53:58,574 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:53:58,574 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:54" (3/4) ... [2019-11-25 08:53:58,579 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:53:58,579 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:53:58,581 INFO L168 Benchmark]: Toolchain (without parser) took 5480.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 197.1 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -231.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:53:58,582 INFO L168 Benchmark]: CDTParser took 0.27 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. [2019-11-25 08:53:58,587 INFO L168 Benchmark]: CACSL2BoogieTranslator took 438.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -139.7 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:58,588 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.70 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: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:58,588 INFO L168 Benchmark]: Boogie Preprocessor took 33.74 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:53:58,589 INFO L168 Benchmark]: RCFGBuilder took 695.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 39.6 MB). Peak memory consumption was 39.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:58,589 INFO L168 Benchmark]: TraceAbstraction took 4257.95 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 97.5 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -138.5 MB). Peak memory consumption was 312.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:58,594 INFO L168 Benchmark]: Witness Printer took 6.43 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. [2019-11-25 08:53:58,596 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 438.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -139.7 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.70 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: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.74 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 695.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 39.6 MB). Peak memory consumption was 39.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4257.95 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 97.5 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -138.5 MB). Peak memory consumption was 312.5 MB. Max. memory is 11.5 GB. * Witness Printer took 6.43 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 7]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 100, overapproximation of bitwiseAnd at line 98. Possible FailurePath: [L216] unsigned int a ; [L217] unsigned int ma = __VERIFIER_nondet_uint(); [L218] signed char ea = __VERIFIER_nondet_char(); [L219] unsigned int b ; [L220] unsigned int mb = __VERIFIER_nondet_uint(); [L221] signed char eb = __VERIFIER_nondet_char(); [L222] unsigned int r_add ; [L223] unsigned int zero ; [L224] int sa ; [L225] int sb ; [L226] int tmp ; [L227] int tmp___0 ; [L228] int tmp___1 ; [L229] int tmp___2 ; [L230] int tmp___3 ; [L231] int tmp___4 ; [L232] int tmp___5 ; [L233] int tmp___6 ; [L234] int tmp___7 ; [L235] int tmp___8 ; [L236] int tmp___9 ; [L237] int __retres23 ; [L15] unsigned int res ; [L16] unsigned int __retres4 ; [L19] COND TRUE ! m [L20] __retres4 = 0U [L70] return (__retres4); [L241] zero = base2flt(0, 0) [L15] unsigned int res ; [L16] unsigned int __retres4 ; [L19] COND FALSE !(! m) [L25] COND FALSE !(m < 1U << 24U) [L47] COND TRUE 1 [L49] COND FALSE !(m >= 1U << 25U) [L66] m = m & ~ (1U << 24U) [L67] res = m | ((unsigned int )(e + 128) << 24U) [L68] __retres4 = res [L70] return (__retres4); [L242] a = base2flt(ma, ea) [L15] unsigned int res ; [L16] unsigned int __retres4 ; [L19] COND FALSE !(! m) [L25] COND FALSE !(m < 1U << 24U) [L47] COND TRUE 1 [L49] COND FALSE !(m >= 1U << 25U) [L66] m = m & ~ (1U << 24U) [L67] res = m | ((unsigned int )(e + 128) << 24U) [L68] __retres4 = res [L70] return (__retres4); [L243] b = base2flt(mb, eb) [L245] COND FALSE !(a < zero) [L248] COND TRUE a > zero [L249] tmp = 1 [L253] sa = tmp [L255] COND FALSE !(b < zero) [L258] COND TRUE b > zero [L259] tmp___0 = 1 [L263] sb = tmp___0 [L74] unsigned int res ; [L75] unsigned int ma ; [L76] unsigned int mb ; [L77] unsigned int delta ; [L78] int ea ; [L79] int eb ; [L80] unsigned int tmp ; [L81] unsigned int __retres10 ; [L84] COND TRUE a < b [L85] tmp = a [L86] a = b [L87] b = tmp [L91] COND FALSE !(! b) [L98] ma = a & ((1U << 24U) - 1U) [L99] ea = (int )(a >> 24U) - 128 [L100] ma = ma | (1U << 24U) [L101] mb = b & ((1U << 24U) - 1U) [L102] eb = (int )(b >> 24U) - 128 [L103] mb = mb | (1U << 24U) [L6] COND TRUE !(cond) [L7] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 95 locations, 6 error locations. Result: UNSAFE, OverallTime: 4.1s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 680 SDtfs, 2059 SDslu, 2424 SDs, 0 SdLazy, 601 SolverSat, 55 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=232occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 377 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 163 NumberOfCodeBlocks, 163 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 128 ConstructedInterpolants, 0 QuantifiedInterpolants, 12000 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-6b5699a [2019-11-25 08:54:00,435 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:54:00,437 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:54:00,454 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:54:00,454 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:54:00,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:54:00,458 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:54:00,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:54:00,471 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:54:00,475 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:54:00,476 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:54:00,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:54:00,478 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:54:00,480 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:54:00,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:54:00,484 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:54:00,485 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:54:00,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:54:00,488 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:54:00,492 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:54:00,496 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:54:00,500 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:54:00,501 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:54:00,502 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:54:00,505 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:54:00,506 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:54:00,506 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:54:00,508 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:54:00,508 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:54:00,511 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:54:00,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:54:00,512 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:54:00,513 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:54:00,514 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:54:00,515 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:54:00,515 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:54:00,516 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:54:00,516 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:54:00,517 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:54:00,518 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:54:00,519 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:54:00,520 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2fa515e9-39cd-442e-9adc-5fa6826ba974/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-25 08:54:00,538 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:54:00,539 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:54:00,540 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:54:00,540 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:54:00,540 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:54:00,540 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:54:00,541 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:54:00,541 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:54:00,541 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:54:00,541 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:54:00,542 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:54:00,542 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:54:00,542 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-25 08:54:00,542 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-25 08:54:00,543 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-25 08:54:00,543 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:54:00,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:54:00,543 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:54:00,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:54:00,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:54:00,544 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:54:00,544 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:54:00,545 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:54:00,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:54:00,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:54:00,545 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:54:00,546 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:54:00,546 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-25 08:54:00,546 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-25 08:54:00,546 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:54:00,547 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-25 08:54:00,547 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_2fa515e9-39cd-442e-9adc-5fa6826ba974/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 -> 0e04f2515dd5c7ce697460622800d33932bf1903 [2019-11-25 08:54:00,810 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:54:00,828 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:54:00,832 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:54:00,834 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:54:00,835 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:54:00,835 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2fa515e9-39cd-442e-9adc-5fa6826ba974/bin/uautomizer/../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2019-11-25 08:54:00,886 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2fa515e9-39cd-442e-9adc-5fa6826ba974/bin/uautomizer/data/81dc61606/b4ac1114c0de4563837ff43cdafe4f1e/FLAGf531ba8d8 [2019-11-25 08:54:01,351 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:54:01,352 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2fa515e9-39cd-442e-9adc-5fa6826ba974/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2019-11-25 08:54:01,361 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2fa515e9-39cd-442e-9adc-5fa6826ba974/bin/uautomizer/data/81dc61606/b4ac1114c0de4563837ff43cdafe4f1e/FLAGf531ba8d8 [2019-11-25 08:54:01,856 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2fa515e9-39cd-442e-9adc-5fa6826ba974/bin/uautomizer/data/81dc61606/b4ac1114c0de4563837ff43cdafe4f1e [2019-11-25 08:54:01,859 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:54:01,860 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:54:01,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:54:01,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:54:01,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:54:01,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:54:01" (1/1) ... [2019-11-25 08:54:01,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55de2dad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:01, skipping insertion in model container [2019-11-25 08:54:01,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:54:01" (1/1) ... [2019-11-25 08:54:01,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:54:01,904 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:54:02,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:54:02,111 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:54:02,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:54:02,222 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:54:02,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:02 WrapperNode [2019-11-25 08:54:02,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:54:02,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:54:02,224 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:54:02,224 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:54:02,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:02" (1/1) ... [2019-11-25 08:54:02,240 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:02" (1/1) ... [2019-11-25 08:54:02,266 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:54:02,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:54:02,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:54:02,267 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:54:02,274 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:02" (1/1) ... [2019-11-25 08:54:02,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:02" (1/1) ... [2019-11-25 08:54:02,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:02" (1/1) ... [2019-11-25 08:54:02,278 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:02" (1/1) ... [2019-11-25 08:54:02,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:02" (1/1) ... [2019-11-25 08:54:02,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:02" (1/1) ... [2019-11-25 08:54:02,295 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:02" (1/1) ... [2019-11-25 08:54:02,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:54:02,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:54:02,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:54:02,300 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:54:02,301 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2fa515e9-39cd-442e-9adc-5fa6826ba974/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 [2019-11-25 08:54:02,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:54:02,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:54:02,848 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:54:02,848 INFO L284 CfgBuilder]: Removed 30 assume(true) statements. [2019-11-25 08:54:02,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:02 BoogieIcfgContainer [2019-11-25 08:54:02,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:54:02,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:54:02,850 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:54:02,852 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:54:02,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:54:01" (1/3) ... [2019-11-25 08:54:02,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a58661d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:54:02, skipping insertion in model container [2019-11-25 08:54:02,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:02" (2/3) ... [2019-11-25 08:54:02,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a58661d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:54:02, skipping insertion in model container [2019-11-25 08:54:02,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:02" (3/3) ... [2019-11-25 08:54:02,857 INFO L109 eAbstractionObserver]: Analyzing ICFG soft_float_1-3a.c.cil.c [2019-11-25 08:54:02,863 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:54:02,869 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-11-25 08:54:02,878 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-11-25 08:54:02,899 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:54:02,899 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:54:02,899 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:54:02,899 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:54:02,899 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:54:02,900 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:54:02,900 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:54:02,900 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:54:02,916 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2019-11-25 08:54:02,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-25 08:54:02,922 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:02,923 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:02,923 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:54:02,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:02,928 INFO L82 PathProgramCache]: Analyzing trace with hash 934616753, now seen corresponding path program 1 times [2019-11-25 08:54:02,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:54:02,937 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1104227556] [2019-11-25 08:54:02,937 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2fa515e9-39cd-442e-9adc-5fa6826ba974/bin/uautomizer/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:54:03,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:03,018 INFO L255 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-25 08:54:03,023 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:03,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:03,101 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:54:03,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:03,126 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1104227556] [2019-11-25 08:54:03,127 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:03,127 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2019-11-25 08:54:03,128 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689094650] [2019-11-25 08:54:03,133 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:54:03,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:54:03,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:54:03,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:54:03,147 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 7 states. [2019-11-25 08:54:03,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:03,737 INFO L93 Difference]: Finished difference Result 497 states and 751 transitions. [2019-11-25 08:54:03,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-25 08:54:03,739 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2019-11-25 08:54:03,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:03,766 INFO L225 Difference]: With dead ends: 497 [2019-11-25 08:54:03,766 INFO L226 Difference]: Without dead ends: 379 [2019-11-25 08:54:03,770 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2019-11-25 08:54:03,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2019-11-25 08:54:03,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 130. [2019-11-25 08:54:03,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2019-11-25 08:54:03,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 187 transitions. [2019-11-25 08:54:03,847 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 187 transitions. Word has length 17 [2019-11-25 08:54:03,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:03,848 INFO L462 AbstractCegarLoop]: Abstraction has 130 states and 187 transitions. [2019-11-25 08:54:03,848 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:54:03,848 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 187 transitions. [2019-11-25 08:54:03,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-25 08:54:03,850 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:03,851 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:04,053 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:54:04,054 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:54:04,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:04,054 INFO L82 PathProgramCache]: Analyzing trace with hash 216177638, now seen corresponding path program 1 times [2019-11-25 08:54:04,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:54:04,056 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [990564167] [2019-11-25 08:54:04,056 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2fa515e9-39cd-442e-9adc-5fa6826ba974/bin/uautomizer/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:54:04,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:04,130 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:54:04,131 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:04,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:04,156 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:54:04,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:04,179 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [990564167] [2019-11-25 08:54:04,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:04,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-25 08:54:04,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536155951] [2019-11-25 08:54:04,182 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:54:04,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:54:04,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:54:04,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:54:04,183 INFO L87 Difference]: Start difference. First operand 130 states and 187 transitions. Second operand 5 states. [2019-11-25 08:54:04,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:04,360 INFO L93 Difference]: Finished difference Result 501 states and 705 transitions. [2019-11-25 08:54:04,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:54:04,361 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2019-11-25 08:54:04,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:04,365 INFO L225 Difference]: With dead ends: 501 [2019-11-25 08:54:04,365 INFO L226 Difference]: Without dead ends: 424 [2019-11-25 08:54:04,367 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:54:04,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2019-11-25 08:54:04,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 175. [2019-11-25 08:54:04,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2019-11-25 08:54:04,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 251 transitions. [2019-11-25 08:54:04,386 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 251 transitions. Word has length 21 [2019-11-25 08:54:04,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:04,386 INFO L462 AbstractCegarLoop]: Abstraction has 175 states and 251 transitions. [2019-11-25 08:54:04,387 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:54:04,387 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 251 transitions. [2019-11-25 08:54:04,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-25 08:54:04,389 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:04,389 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:04,590 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:54:04,591 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:54:04,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:04,591 INFO L82 PathProgramCache]: Analyzing trace with hash -1163788538, now seen corresponding path program 1 times [2019-11-25 08:54:04,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:54:04,606 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [855408550] [2019-11-25 08:54:04,606 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2fa515e9-39cd-442e-9adc-5fa6826ba974/bin/uautomizer/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:54:04,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:04,678 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:54:04,680 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:04,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:04,701 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:54:04,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:04,716 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [855408550] [2019-11-25 08:54:04,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:04,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-25 08:54:04,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143563120] [2019-11-25 08:54:04,717 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:54:04,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:54:04,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:54:04,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:54:04,718 INFO L87 Difference]: Start difference. First operand 175 states and 251 transitions. Second operand 5 states. [2019-11-25 08:54:04,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:04,853 INFO L93 Difference]: Finished difference Result 347 states and 483 transitions. [2019-11-25 08:54:04,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:54:04,853 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-11-25 08:54:04,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:04,855 INFO L225 Difference]: With dead ends: 347 [2019-11-25 08:54:04,856 INFO L226 Difference]: Without dead ends: 274 [2019-11-25 08:54:04,857 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:54:04,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2019-11-25 08:54:04,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 257. [2019-11-25 08:54:04,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2019-11-25 08:54:04,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 366 transitions. [2019-11-25 08:54:04,875 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 366 transitions. Word has length 25 [2019-11-25 08:54:04,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:04,876 INFO L462 AbstractCegarLoop]: Abstraction has 257 states and 366 transitions. [2019-11-25 08:54:04,876 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:54:04,876 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 366 transitions. [2019-11-25 08:54:04,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-25 08:54:04,878 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:04,878 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:05,080 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:54:05,080 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:54:05,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:05,081 INFO L82 PathProgramCache]: Analyzing trace with hash 611218824, now seen corresponding path program 1 times [2019-11-25 08:54:05,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:54:05,081 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [584415081] [2019-11-25 08:54:05,082 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2fa515e9-39cd-442e-9adc-5fa6826ba974/bin/uautomizer/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:54:05,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:05,163 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-25 08:54:05,165 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:05,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:05,228 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:54:05,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:05,336 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [584415081] [2019-11-25 08:54:05,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:05,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-25 08:54:05,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099771181] [2019-11-25 08:54:05,337 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 08:54:05,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:54:05,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 08:54:05,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:54:05,339 INFO L87 Difference]: Start difference. First operand 257 states and 366 transitions. Second operand 8 states. [2019-11-25 08:54:07,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:07,581 INFO L93 Difference]: Finished difference Result 1091 states and 1532 transitions. [2019-11-25 08:54:07,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-25 08:54:07,583 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2019-11-25 08:54:07,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:07,589 INFO L225 Difference]: With dead ends: 1091 [2019-11-25 08:54:07,589 INFO L226 Difference]: Without dead ends: 974 [2019-11-25 08:54:07,590 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2019-11-25 08:54:07,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2019-11-25 08:54:07,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 277. [2019-11-25 08:54:07,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2019-11-25 08:54:07,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 392 transitions. [2019-11-25 08:54:07,617 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 392 transitions. Word has length 25 [2019-11-25 08:54:07,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:07,617 INFO L462 AbstractCegarLoop]: Abstraction has 277 states and 392 transitions. [2019-11-25 08:54:07,618 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 08:54:07,618 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 392 transitions. [2019-11-25 08:54:07,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-25 08:54:07,620 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:07,620 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:07,822 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:54:07,822 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:54:07,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:07,823 INFO L82 PathProgramCache]: Analyzing trace with hash 611278406, now seen corresponding path program 1 times [2019-11-25 08:54:07,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:54:07,823 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1820994907] [2019-11-25 08:54:07,823 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2fa515e9-39cd-442e-9adc-5fa6826ba974/bin/uautomizer/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:54:07,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:07,894 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-25 08:54:07,896 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:07,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:07,928 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:54:07,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:07,931 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1820994907] [2019-11-25 08:54:07,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:07,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2019-11-25 08:54:07,932 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210057345] [2019-11-25 08:54:07,932 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-25 08:54:07,932 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:54:07,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:54:07,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:54:07,933 INFO L87 Difference]: Start difference. First operand 277 states and 392 transitions. Second operand 6 states. [2019-11-25 08:54:08,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:08,105 INFO L93 Difference]: Finished difference Result 377 states and 518 transitions. [2019-11-25 08:54:08,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:54:08,106 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-11-25 08:54:08,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:08,108 INFO L225 Difference]: With dead ends: 377 [2019-11-25 08:54:08,108 INFO L226 Difference]: Without dead ends: 310 [2019-11-25 08:54:08,109 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-25 08:54:08,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2019-11-25 08:54:08,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 257. [2019-11-25 08:54:08,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2019-11-25 08:54:08,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 361 transitions. [2019-11-25 08:54:08,124 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 361 transitions. Word has length 25 [2019-11-25 08:54:08,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:08,124 INFO L462 AbstractCegarLoop]: Abstraction has 257 states and 361 transitions. [2019-11-25 08:54:08,124 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-25 08:54:08,125 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 361 transitions. [2019-11-25 08:54:08,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-25 08:54:08,127 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:08,127 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:08,329 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:54:08,329 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:54:08,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:08,330 INFO L82 PathProgramCache]: Analyzing trace with hash -873114857, now seen corresponding path program 1 times [2019-11-25 08:54:08,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:54:08,330 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [774857907] [2019-11-25 08:54:08,330 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2fa515e9-39cd-442e-9adc-5fa6826ba974/bin/uautomizer/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:54:08,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:08,385 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-25 08:54:08,386 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:08,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:08,410 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:54:08,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:08,454 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [774857907] [2019-11-25 08:54:08,454 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:08,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-25 08:54:08,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350503645] [2019-11-25 08:54:08,455 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-25 08:54:08,455 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:54:08,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-25 08:54:08,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-11-25 08:54:08,455 INFO L87 Difference]: Start difference. First operand 257 states and 361 transitions. Second operand 10 states. [2019-11-25 08:54:08,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:08,981 INFO L93 Difference]: Finished difference Result 502 states and 693 transitions. [2019-11-25 08:54:08,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-25 08:54:08,986 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2019-11-25 08:54:08,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:08,989 INFO L225 Difference]: With dead ends: 502 [2019-11-25 08:54:08,989 INFO L226 Difference]: Without dead ends: 439 [2019-11-25 08:54:08,989 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2019-11-25 08:54:08,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2019-11-25 08:54:09,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 267. [2019-11-25 08:54:09,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2019-11-25 08:54:09,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 376 transitions. [2019-11-25 08:54:09,007 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 376 transitions. Word has length 29 [2019-11-25 08:54:09,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:09,007 INFO L462 AbstractCegarLoop]: Abstraction has 267 states and 376 transitions. [2019-11-25 08:54:09,008 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-25 08:54:09,008 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 376 transitions. [2019-11-25 08:54:09,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-25 08:54:09,009 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:09,009 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:09,211 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:54:09,211 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:54:09,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:09,211 INFO L82 PathProgramCache]: Analyzing trace with hash -871267815, now seen corresponding path program 1 times [2019-11-25 08:54:09,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:54:09,212 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1727211490] [2019-11-25 08:54:09,212 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2fa515e9-39cd-442e-9adc-5fa6826ba974/bin/uautomizer/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:54:09,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:09,292 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-25 08:54:09,293 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:09,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:09,310 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:54:09,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:09,326 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1727211490] [2019-11-25 08:54:09,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:09,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-25 08:54:09,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146112529] [2019-11-25 08:54:09,327 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-25 08:54:09,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:54:09,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:54:09,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:54:09,327 INFO L87 Difference]: Start difference. First operand 267 states and 376 transitions. Second operand 6 states. [2019-11-25 08:54:09,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:09,395 INFO L93 Difference]: Finished difference Result 514 states and 709 transitions. [2019-11-25 08:54:09,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:54:09,395 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2019-11-25 08:54:09,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:09,398 INFO L225 Difference]: With dead ends: 514 [2019-11-25 08:54:09,398 INFO L226 Difference]: Without dead ends: 427 [2019-11-25 08:54:09,399 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:54:09,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2019-11-25 08:54:09,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 349. [2019-11-25 08:54:09,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-11-25 08:54:09,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 480 transitions. [2019-11-25 08:54:09,422 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 480 transitions. Word has length 29 [2019-11-25 08:54:09,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:09,422 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 480 transitions. [2019-11-25 08:54:09,423 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-25 08:54:09,423 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 480 transitions. [2019-11-25 08:54:09,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-25 08:54:09,424 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:09,424 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:09,634 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:54:09,634 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:54:09,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:09,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1737423153, now seen corresponding path program 1 times [2019-11-25 08:54:09,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:54:09,635 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1185958820] [2019-11-25 08:54:09,635 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2fa515e9-39cd-442e-9adc-5fa6826ba974/bin/uautomizer/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:54:09,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:09,715 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-25 08:54:09,716 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:09,733 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:54:09,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:09,750 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:54:09,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:09,782 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1185958820] [2019-11-25 08:54:09,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:09,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-25 08:54:09,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360467985] [2019-11-25 08:54:09,782 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-25 08:54:09,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:54:09,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:54:09,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:54:09,783 INFO L87 Difference]: Start difference. First operand 349 states and 480 transitions. Second operand 6 states. [2019-11-25 08:54:09,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:09,982 INFO L93 Difference]: Finished difference Result 480 states and 656 transitions. [2019-11-25 08:54:09,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-25 08:54:09,983 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2019-11-25 08:54:09,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:09,986 INFO L225 Difference]: With dead ends: 480 [2019-11-25 08:54:09,986 INFO L226 Difference]: Without dead ends: 478 [2019-11-25 08:54:09,987 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2019-11-25 08:54:09,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2019-11-25 08:54:10,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 347. [2019-11-25 08:54:10,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2019-11-25 08:54:10,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 473 transitions. [2019-11-25 08:54:10,013 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 473 transitions. Word has length 29 [2019-11-25 08:54:10,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:10,014 INFO L462 AbstractCegarLoop]: Abstraction has 347 states and 473 transitions. [2019-11-25 08:54:10,014 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-25 08:54:10,014 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 473 transitions. [2019-11-25 08:54:10,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-25 08:54:10,015 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:10,015 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:10,217 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:54:10,217 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:54:10,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:10,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1174763763, now seen corresponding path program 1 times [2019-11-25 08:54:10,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:54:10,218 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [521604834] [2019-11-25 08:54:10,219 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2fa515e9-39cd-442e-9adc-5fa6826ba974/bin/uautomizer/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:54:10,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:10,283 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:54:10,284 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:10,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:10,294 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:54:10,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:10,308 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [521604834] [2019-11-25 08:54:10,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:10,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-25 08:54:10,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048197224] [2019-11-25 08:54:10,309 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-25 08:54:10,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:54:10,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:54:10,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:54:10,309 INFO L87 Difference]: Start difference. First operand 347 states and 473 transitions. Second operand 6 states. [2019-11-25 08:54:10,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:10,410 INFO L93 Difference]: Finished difference Result 406 states and 547 transitions. [2019-11-25 08:54:10,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:54:10,410 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2019-11-25 08:54:10,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:10,412 INFO L225 Difference]: With dead ends: 406 [2019-11-25 08:54:10,413 INFO L226 Difference]: Without dead ends: 401 [2019-11-25 08:54:10,413 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:54:10,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2019-11-25 08:54:10,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 347. [2019-11-25 08:54:10,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2019-11-25 08:54:10,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 470 transitions. [2019-11-25 08:54:10,436 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 470 transitions. Word has length 30 [2019-11-25 08:54:10,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:10,436 INFO L462 AbstractCegarLoop]: Abstraction has 347 states and 470 transitions. [2019-11-25 08:54:10,436 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-25 08:54:10,437 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 470 transitions. [2019-11-25 08:54:10,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-25 08:54:10,438 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:10,438 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:10,639 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:54:10,642 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:54:10,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:10,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1078465644, now seen corresponding path program 1 times [2019-11-25 08:54:10,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:54:10,643 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [416349177] [2019-11-25 08:54:10,643 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2fa515e9-39cd-442e-9adc-5fa6826ba974/bin/uautomizer/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:54:10,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:10,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:10,849 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-25 08:54:10,849 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:54:11,052 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:54:11,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:54:11 BoogieIcfgContainer [2019-11-25 08:54:11,080 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:54:11,081 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:54:11,081 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:54:11,081 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:54:11,081 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:02" (3/4) ... [2019-11-25 08:54:11,083 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-25 08:54:11,141 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2fa515e9-39cd-442e-9adc-5fa6826ba974/bin/uautomizer/witness.graphml [2019-11-25 08:54:11,141 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:54:11,143 INFO L168 Benchmark]: Toolchain (without parser) took 9283.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 212.3 MB). Free memory was 960.4 MB in the beginning and 896.6 MB in the end (delta: 63.9 MB). Peak memory consumption was 276.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:11,144 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:54:11,144 INFO L168 Benchmark]: CACSL2BoogieTranslator took 362.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -182.3 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:11,145 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.29 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. [2019-11-25 08:54:11,145 INFO L168 Benchmark]: Boogie Preprocessor took 32.52 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:11,145 INFO L168 Benchmark]: RCFGBuilder took 549.65 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: 32.5 MB). Peak memory consumption was 32.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:11,146 INFO L168 Benchmark]: TraceAbstraction took 8230.25 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 59.8 MB). Free memory was 1.1 GB in the beginning and 903.6 MB in the end (delta: 200.2 MB). Peak memory consumption was 260.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:11,146 INFO L168 Benchmark]: Witness Printer took 61.00 ms. Allocated memory is still 1.2 GB. Free memory was 903.6 MB in the beginning and 896.6 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:11,148 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 362.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -182.3 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.29 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.52 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 549.65 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: 32.5 MB). Peak memory consumption was 32.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8230.25 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 59.8 MB). Free memory was 1.1 GB in the beginning and 903.6 MB in the end (delta: 200.2 MB). Peak memory consumption was 260.0 MB. Max. memory is 11.5 GB. * Witness Printer took 61.00 ms. Allocated memory is still 1.2 GB. Free memory was 903.6 MB in the beginning and 896.6 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 7]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L216] unsigned int a ; [L217] unsigned int ma = __VERIFIER_nondet_uint(); [L218] signed char ea = __VERIFIER_nondet_char(); [L219] unsigned int b ; [L220] unsigned int mb = __VERIFIER_nondet_uint(); [L221] signed char eb = __VERIFIER_nondet_char(); [L222] unsigned int r_add ; [L223] unsigned int zero ; [L224] int sa ; [L225] int sb ; [L226] int tmp ; [L227] int tmp___0 ; [L228] int tmp___1 ; [L229] int tmp___2 ; [L230] int tmp___3 ; [L231] int tmp___4 ; [L232] int tmp___5 ; [L233] int tmp___6 ; [L234] int tmp___7 ; [L235] int tmp___8 ; [L236] int tmp___9 ; [L237] int __retres23 ; [L15] unsigned int res ; [L16] unsigned int __retres4 ; [L19] COND TRUE ! m [L20] __retres4 = 0U [L70] return (__retres4); [L241] zero = base2flt(0, 0) [L15] unsigned int res ; [L16] unsigned int __retres4 ; [L19] COND FALSE !(! m) [L25] COND FALSE !(m < 1U << 24U) [L47] COND TRUE 1 [L49] COND FALSE !(m >= 1U << 25U) [L66] m = m & ~ (1U << 24U) [L67] res = m | ((unsigned int )(e + 128) << 24U) [L68] __retres4 = res [L70] return (__retres4); [L242] a = base2flt(ma, ea) [L15] unsigned int res ; [L16] unsigned int __retres4 ; [L19] COND FALSE !(! m) [L25] COND FALSE !(m < 1U << 24U) [L47] COND TRUE 1 [L49] COND FALSE !(m >= 1U << 25U) [L66] m = m & ~ (1U << 24U) [L67] res = m | ((unsigned int )(e + 128) << 24U) [L68] __retres4 = res [L70] return (__retres4); [L243] b = base2flt(mb, eb) [L245] COND FALSE !(a < zero) [L248] COND TRUE a > zero [L249] tmp = 1 [L253] sa = tmp [L255] COND FALSE !(b < zero) [L258] COND TRUE b > zero [L259] tmp___0 = 1 [L263] sb = tmp___0 [L74] unsigned int res ; [L75] unsigned int ma ; [L76] unsigned int mb ; [L77] unsigned int delta ; [L78] int ea ; [L79] int eb ; [L80] unsigned int tmp ; [L81] unsigned int __retres10 ; [L84] COND TRUE a < b [L85] tmp = a [L86] a = b [L87] b = tmp [L91] COND FALSE !(! b) [L98] ma = a & ((1U << 24U) - 1U) [L99] ea = (int )(a >> 24U) - 128 [L100] ma = ma | (1U << 24U) [L101] mb = b & ((1U << 24U) - 1U) [L102] eb = (int )(b >> 24U) - 128 [L103] mb = mb | (1U << 24U) [L6] COND FALSE !(!(cond)) [L105] delta = ea - eb [L6] COND TRUE !(cond) [L7] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 95 locations, 6 error locations. Result: UNSAFE, OverallTime: 8.1s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 1327 SDtfs, 3512 SDslu, 5147 SDs, 0 SdLazy, 1110 SolverSat, 91 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 485 GetRequests, 402 SyntacticMatches, 2 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=349occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 1700 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 261 NumberOfCodeBlocks, 261 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 442 ConstructedInterpolants, 6 QuantifiedInterpolants, 19474 SizeOfPredicates, 46 NumberOfNonLiveVariables, 522 ConjunctsInSsa, 51 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...