./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float6.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2f669ded-67d2-4d34-9215-b07349b8744b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2f669ded-67d2-4d34-9215-b07349b8744b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2f669ded-67d2-4d34-9215-b07349b8744b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2f669ded-67d2-4d34-9215-b07349b8744b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float6.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2f669ded-67d2-4d34-9215-b07349b8744b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2f669ded-67d2-4d34-9215-b07349b8744b/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9ec220fd0064d8652998013027d97b204a648814 ................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2f669ded-67d2-4d34-9215-b07349b8744b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2f669ded-67d2-4d34-9215-b07349b8744b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2f669ded-67d2-4d34-9215-b07349b8744b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2f669ded-67d2-4d34-9215-b07349b8744b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float6.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2f669ded-67d2-4d34-9215-b07349b8744b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2f669ded-67d2-4d34-9215-b07349b8744b/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9ec220fd0064d8652998013027d97b204a648814 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:40:55,772 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:40:55,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:40:55,863 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:40:55,864 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:40:55,872 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:40:55,875 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:40:55,880 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:40:55,883 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:40:55,890 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:40:55,892 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:40:55,894 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:40:55,895 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:40:55,899 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:40:55,900 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:40:55,903 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:40:55,904 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:40:55,909 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:40:55,913 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:40:55,922 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:40:55,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:40:55,926 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:40:55,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:40:55,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:40:55,934 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:40:55,934 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:40:55,935 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:40:55,937 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:40:55,937 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:40:55,939 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:40:55,939 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:40:55,941 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:40:55,943 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:40:55,944 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:40:55,946 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:40:55,946 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:40:55,947 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:40:55,947 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:40:55,947 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:40:55,950 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:40:55,951 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:40:55,953 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2f669ded-67d2-4d34-9215-b07349b8744b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 18:40:55,998 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:40:55,999 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:40:56,001 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:40:56,001 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:40:56,001 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:40:56,001 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:40:56,001 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:40:56,002 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:40:56,002 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:40:56,002 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:40:56,003 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 18:40:56,003 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:40:56,004 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 18:40:56,004 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:40:56,004 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:40:56,004 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:40:56,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 18:40:56,005 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:40:56,005 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:40:56,005 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:40:56,005 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:40:56,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:40:56,006 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:40:56,006 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:40:56,006 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 18:40:56,006 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:40:56,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 18:40:56,007 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 18:40:56,007 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:40:56,007 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_2f669ded-67d2-4d34-9215-b07349b8744b/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2f669ded-67d2-4d34-9215-b07349b8744b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ec220fd0064d8652998013027d97b204a648814 [2020-11-29 18:40:56,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:40:56,331 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:40:56,334 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:40:56,335 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:40:56,336 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:40:56,337 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2f669ded-67d2-4d34-9215-b07349b8744b/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float6.c [2020-11-29 18:40:56,435 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2f669ded-67d2-4d34-9215-b07349b8744b/bin/uautomizer/data/b256ac9de/900bcaa827ba44ea99960f39e5c69b79/FLAG3b594d277 [2020-11-29 18:40:57,056 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:40:57,058 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2f669ded-67d2-4d34-9215-b07349b8744b/sv-benchmarks/c/floats-cbmc-regression/float6.c [2020-11-29 18:40:57,074 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2f669ded-67d2-4d34-9215-b07349b8744b/bin/uautomizer/data/b256ac9de/900bcaa827ba44ea99960f39e5c69b79/FLAG3b594d277 [2020-11-29 18:40:57,393 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2f669ded-67d2-4d34-9215-b07349b8744b/bin/uautomizer/data/b256ac9de/900bcaa827ba44ea99960f39e5c69b79 [2020-11-29 18:40:57,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:40:57,398 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:40:57,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:40:57,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:40:57,405 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:40:57,406 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:40:57" (1/1) ... [2020-11-29 18:40:57,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fcda8b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:57, skipping insertion in model container [2020-11-29 18:40:57,409 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:40:57" (1/1) ... [2020-11-29 18:40:57,417 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:40:57,437 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:40:57,692 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:40:57,702 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:40:57,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:40:57,763 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:40:57,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:57 WrapperNode [2020-11-29 18:40:57,764 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:40:57,765 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:40:57,766 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:40:57,766 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:40:57,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:57" (1/1) ... [2020-11-29 18:40:57,791 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:57" (1/1) ... [2020-11-29 18:40:57,832 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:40:57,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:40:57,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:40:57,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:40:57,844 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:57" (1/1) ... [2020-11-29 18:40:57,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:57" (1/1) ... [2020-11-29 18:40:57,847 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:57" (1/1) ... [2020-11-29 18:40:57,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:57" (1/1) ... [2020-11-29 18:40:57,858 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:57" (1/1) ... [2020-11-29 18:40:57,864 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:57" (1/1) ... [2020-11-29 18:40:57,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:57" (1/1) ... [2020-11-29 18:40:57,881 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:40:57,883 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:40:57,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:40:57,883 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:40:57,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2f669ded-67d2-4d34-9215-b07349b8744b/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 [2020-11-29 18:40:57,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:40:57,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:40:57,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:40:57,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:40:58,683 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:40:58,683 INFO L298 CfgBuilder]: Removed 76 assume(true) statements. [2020-11-29 18:40:58,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:40:58 BoogieIcfgContainer [2020-11-29 18:40:58,685 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:40:58,687 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 18:40:58,688 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 18:40:58,692 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 18:40:58,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:40:57" (1/3) ... [2020-11-29 18:40:58,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3810fb40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:40:58, skipping insertion in model container [2020-11-29 18:40:58,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:40:57" (2/3) ... [2020-11-29 18:40:58,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3810fb40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:40:58, skipping insertion in model container [2020-11-29 18:40:58,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:40:58" (3/3) ... [2020-11-29 18:40:58,696 INFO L111 eAbstractionObserver]: Analyzing ICFG float6.c [2020-11-29 18:40:58,709 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 18:40:58,714 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 36 error locations. [2020-11-29 18:40:58,728 INFO L253 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2020-11-29 18:40:58,771 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 18:40:58,771 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 18:40:58,772 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 18:40:58,772 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:40:58,772 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:40:58,772 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 18:40:58,772 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:40:58,773 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 18:40:58,807 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states. [2020-11-29 18:40:58,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 18:40:58,813 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:40:58,814 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-29 18:40:58,815 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:40:58,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:40:58,823 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-11-29 18:40:58,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:40:58,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592124247] [2020-11-29 18:40:58,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:40:58,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:58,951 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:58,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:58,972 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:58,996 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:40:58,997 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 18:40:58,998 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 18:40:59,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:40:59 BoogieIcfgContainer [2020-11-29 18:40:59,023 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 18:40:59,024 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:40:59,024 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:40:59,025 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:40:59,025 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:40:58" (3/4) ... [2020-11-29 18:40:59,030 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 18:40:59,030 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:40:59,033 INFO L168 Benchmark]: Toolchain (without parser) took 1633.21 ms. Allocated memory was 92.3 MB in the beginning and 123.7 MB in the end (delta: 31.5 MB). Free memory was 61.6 MB in the beginning and 91.4 MB in the end (delta: -29.8 MB). Peak memory consumption was 1.3 MB. Max. memory is 16.1 GB. [2020-11-29 18:40:59,034 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 92.3 MB. Free memory was 52.1 MB in the beginning and 52.1 MB in the end (delta: 40.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:40:59,035 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.04 ms. Allocated memory is still 92.3 MB. Free memory was 61.3 MB in the beginning and 68.3 MB in the end (delta: -7.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:40:59,036 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.69 ms. Allocated memory is still 92.3 MB. Free memory was 68.3 MB in the beginning and 66.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:40:59,037 INFO L168 Benchmark]: Boogie Preprocessor took 48.90 ms. Allocated memory is still 92.3 MB. Free memory was 66.7 MB in the beginning and 65.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:40:59,038 INFO L168 Benchmark]: RCFGBuilder took 802.94 ms. Allocated memory is still 92.3 MB. Free memory was 65.0 MB in the beginning and 37.7 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-11-29 18:40:59,039 INFO L168 Benchmark]: TraceAbstraction took 335.98 ms. Allocated memory was 92.3 MB in the beginning and 123.7 MB in the end (delta: 31.5 MB). Free memory was 37.3 MB in the beginning and 91.4 MB in the end (delta: -54.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:40:59,040 INFO L168 Benchmark]: Witness Printer took 5.87 ms. Allocated memory is still 123.7 MB. Free memory is still 91.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:40:59,045 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 92.3 MB. Free memory was 52.1 MB in the beginning and 52.1 MB in the end (delta: 40.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 364.04 ms. Allocated memory is still 92.3 MB. Free memory was 61.3 MB in the beginning and 68.3 MB in the end (delta: -7.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.69 ms. Allocated memory is still 92.3 MB. Free memory was 68.3 MB in the beginning and 66.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.90 ms. Allocated memory is still 92.3 MB. Free memory was 66.7 MB in the beginning and 65.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 802.94 ms. Allocated memory is still 92.3 MB. Free memory was 65.0 MB in the beginning and 37.7 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 335.98 ms. Allocated memory was 92.3 MB in the beginning and 123.7 MB in the end (delta: 31.5 MB). Free memory was 37.3 MB in the beginning and 91.4 MB in the end (delta: -54.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.87 ms. Allocated memory is still 123.7 MB. Free memory is still 91.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 9. Possible FailurePath: [L9] COND TRUE !(1.0!=2.0) [L4] __assert_fail("0", "float6.c", 4, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 151 locations, 36 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=151occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: 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 0.2.0-a4ecdab [2020-11-29 18:41:02,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:41:02,008 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:41:02,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:41:02,069 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:41:02,077 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:41:02,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:41:02,086 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:41:02,091 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:41:02,101 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:41:02,103 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:41:02,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:41:02,114 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:41:02,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:41:02,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:41:02,119 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:41:02,120 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:41:02,121 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:41:02,123 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:41:02,126 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:41:02,128 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:41:02,130 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:41:02,132 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:41:02,134 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:41:02,140 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:41:02,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:41:02,148 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:41:02,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:41:02,151 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:41:02,153 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:41:02,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:41:02,155 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:41:02,157 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:41:02,158 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:41:02,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:41:02,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:41:02,161 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:41:02,161 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:41:02,162 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:41:02,164 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:41:02,165 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:41:02,166 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2f669ded-67d2-4d34-9215-b07349b8744b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 18:41:02,224 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:41:02,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:41:02,229 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:41:02,229 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:41:02,229 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:41:02,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:41:02,230 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:41:02,230 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:41:02,231 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:41:02,231 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 18:41:02,233 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:41:02,233 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 18:41:02,233 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 18:41:02,233 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 18:41:02,234 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:41:02,234 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:41:02,234 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:41:02,235 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 18:41:02,235 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:41:02,235 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:41:02,235 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:41:02,236 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:41:02,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:41:02,236 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:41:02,237 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:41:02,237 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 18:41:02,237 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 18:41:02,238 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 18:41:02,238 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 18:41:02,238 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:41:02,238 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 18:41:02,239 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_2f669ded-67d2-4d34-9215-b07349b8744b/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2f669ded-67d2-4d34-9215-b07349b8744b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ec220fd0064d8652998013027d97b204a648814 [2020-11-29 18:41:02,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:41:02,773 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:41:02,779 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:41:02,781 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:41:02,782 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:41:02,783 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2f669ded-67d2-4d34-9215-b07349b8744b/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float6.c [2020-11-29 18:41:02,885 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2f669ded-67d2-4d34-9215-b07349b8744b/bin/uautomizer/data/c5b12d49b/16643cd4ee014b96beabd7e80ac7984a/FLAGe17822670 [2020-11-29 18:41:03,559 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:41:03,565 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2f669ded-67d2-4d34-9215-b07349b8744b/sv-benchmarks/c/floats-cbmc-regression/float6.c [2020-11-29 18:41:03,579 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2f669ded-67d2-4d34-9215-b07349b8744b/bin/uautomizer/data/c5b12d49b/16643cd4ee014b96beabd7e80ac7984a/FLAGe17822670 [2020-11-29 18:41:03,871 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2f669ded-67d2-4d34-9215-b07349b8744b/bin/uautomizer/data/c5b12d49b/16643cd4ee014b96beabd7e80ac7984a [2020-11-29 18:41:03,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:41:03,876 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:41:03,878 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:41:03,878 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:41:03,883 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:41:03,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:41:03" (1/1) ... [2020-11-29 18:41:03,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c75504e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:03, skipping insertion in model container [2020-11-29 18:41:03,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:41:03" (1/1) ... [2020-11-29 18:41:03,897 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:41:03,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:41:04,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:41:04,141 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:41:04,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:41:04,195 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:41:04,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:04 WrapperNode [2020-11-29 18:41:04,196 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:41:04,197 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:41:04,197 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:41:04,198 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:41:04,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:04" (1/1) ... [2020-11-29 18:41:04,236 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:04" (1/1) ... [2020-11-29 18:41:04,309 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:41:04,310 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:41:04,310 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:41:04,310 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:41:04,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:04" (1/1) ... [2020-11-29 18:41:04,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:04" (1/1) ... [2020-11-29 18:41:04,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:04" (1/1) ... [2020-11-29 18:41:04,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:04" (1/1) ... [2020-11-29 18:41:04,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:04" (1/1) ... [2020-11-29 18:41:04,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:04" (1/1) ... [2020-11-29 18:41:04,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:04" (1/1) ... [2020-11-29 18:41:04,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:41:04,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:41:04,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:41:04,357 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:41:04,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2f669ded-67d2-4d34-9215-b07349b8744b/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 [2020-11-29 18:41:04,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:41:04,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:41:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 18:41:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:41:05,268 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:41:05,269 INFO L298 CfgBuilder]: Removed 76 assume(true) statements. [2020-11-29 18:41:05,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:41:05 BoogieIcfgContainer [2020-11-29 18:41:05,271 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:41:05,274 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 18:41:05,274 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 18:41:05,278 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 18:41:05,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:41:03" (1/3) ... [2020-11-29 18:41:05,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5935af17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:41:05, skipping insertion in model container [2020-11-29 18:41:05,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:41:04" (2/3) ... [2020-11-29 18:41:05,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5935af17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:41:05, skipping insertion in model container [2020-11-29 18:41:05,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:41:05" (3/3) ... [2020-11-29 18:41:05,283 INFO L111 eAbstractionObserver]: Analyzing ICFG float6.c [2020-11-29 18:41:05,297 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 18:41:05,303 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 36 error locations. [2020-11-29 18:41:05,318 INFO L253 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2020-11-29 18:41:05,367 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 18:41:05,367 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 18:41:05,368 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 18:41:05,368 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:41:05,368 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:41:05,368 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 18:41:05,369 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:41:05,369 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 18:41:05,397 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states. [2020-11-29 18:41:05,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 18:41:05,403 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:41:05,404 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-29 18:41:05,405 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:41:05,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:41:05,413 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-11-29 18:41:05,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:41:05,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1311112081] [2020-11-29 18:41:05,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2f669ded-67d2-4d34-9215-b07349b8744b/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-29 18:41:05,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:41:05,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 18:41:05,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:41:05,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:41:05,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:41:05,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:41:05,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1311112081] [2020-11-29 18:41:05,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:41:05,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 18:41:05,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518960166] [2020-11-29 18:41:05,576 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 18:41:05,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:41:05,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 18:41:05,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 18:41:05,598 INFO L87 Difference]: Start difference. First operand 151 states. Second operand 2 states. [2020-11-29 18:41:05,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:41:05,652 INFO L93 Difference]: Finished difference Result 219 states and 290 transitions. [2020-11-29 18:41:05,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 18:41:05,654 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2020-11-29 18:41:05,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:41:05,668 INFO L225 Difference]: With dead ends: 219 [2020-11-29 18:41:05,669 INFO L226 Difference]: Without dead ends: 68 [2020-11-29 18:41:05,685 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 18:41:05,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-11-29 18:41:05,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-11-29 18:41:05,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-11-29 18:41:05,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 67 transitions. [2020-11-29 18:41:05,749 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 67 transitions. Word has length 4 [2020-11-29 18:41:05,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:41:05,750 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 67 transitions. [2020-11-29 18:41:05,750 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 18:41:05,772 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 67 transitions. [2020-11-29 18:41:05,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-29 18:41:05,773 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:41:05,774 INFO L422 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] [2020-11-29 18:41:05,988 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 18:41:05,989 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:41:05,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:41:05,992 INFO L82 PathProgramCache]: Analyzing trace with hash -1026561821, now seen corresponding path program 1 times [2020-11-29 18:41:05,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:41:05,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1755079761] [2020-11-29 18:41:05,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2f669ded-67d2-4d34-9215-b07349b8744b/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-29 18:41:06,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:41:06,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 18:41:06,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:41:06,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:41:06,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:41:06,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:41:06,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1755079761] [2020-11-29 18:41:06,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:41:06,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-29 18:41:06,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515417614] [2020-11-29 18:41:06,190 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:41:06,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:41:06,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:41:06,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:41:06,192 INFO L87 Difference]: Start difference. First operand 68 states and 67 transitions. Second operand 4 states. [2020-11-29 18:41:06,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:41:06,420 INFO L93 Difference]: Finished difference Result 68 states and 67 transitions. [2020-11-29 18:41:06,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:41:06,421 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-11-29 18:41:06,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:41:06,421 INFO L225 Difference]: With dead ends: 68 [2020-11-29 18:41:06,422 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 18:41:06,423 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:41:06,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 18:41:06,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 18:41:06,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 18:41:06,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 18:41:06,424 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2020-11-29 18:41:06,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:41:06,424 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:41:06,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:41:06,424 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 18:41:06,424 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 18:41:06,625 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 18:41:06,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 18:41:06,630 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,630 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,630 INFO L274 CegarLoopResult]: For program point L19-1(lines 7 50) no Hoare annotation was computed. [2020-11-29 18:41:06,631 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,631 INFO L274 CegarLoopResult]: For program point L36-1(lines 7 50) no Hoare annotation was computed. [2020-11-29 18:41:06,631 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 18:41:06,631 INFO L274 CegarLoopResult]: For program point L20-1(lines 7 50) no Hoare annotation was computed. [2020-11-29 18:41:06,631 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,631 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,631 INFO L274 CegarLoopResult]: For program point L37-1(lines 7 50) no Hoare annotation was computed. [2020-11-29 18:41:06,631 INFO L274 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,631 INFO L274 CegarLoopResult]: For program point L4-2(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,632 INFO L274 CegarLoopResult]: For program point L4-3(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,632 INFO L274 CegarLoopResult]: For program point L4-4(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,632 INFO L274 CegarLoopResult]: For program point L4-5(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,632 INFO L274 CegarLoopResult]: For program point L4-6(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,632 INFO L274 CegarLoopResult]: For program point L4-7(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,632 INFO L274 CegarLoopResult]: For program point L4-8(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,632 INFO L274 CegarLoopResult]: For program point L4-9(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,632 INFO L274 CegarLoopResult]: For program point L4-10(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,632 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,633 INFO L274 CegarLoopResult]: For program point L4-11(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,633 INFO L274 CegarLoopResult]: For program point L4-12(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,633 INFO L274 CegarLoopResult]: For program point L4-13(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,633 INFO L274 CegarLoopResult]: For program point L4-14(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,633 INFO L274 CegarLoopResult]: For program point L4-15(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,633 INFO L274 CegarLoopResult]: For program point L4-16(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,633 INFO L274 CegarLoopResult]: For program point L21-1(lines 7 50) no Hoare annotation was computed. [2020-11-29 18:41:06,633 INFO L274 CegarLoopResult]: For program point L4-17(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,633 INFO L274 CegarLoopResult]: For program point L4-18(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,633 INFO L274 CegarLoopResult]: For program point L4-19(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,634 INFO L274 CegarLoopResult]: For program point L4-20(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,634 INFO L274 CegarLoopResult]: For program point L4-21(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,634 INFO L274 CegarLoopResult]: For program point L4-22(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,634 INFO L274 CegarLoopResult]: For program point L4-23(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,634 INFO L274 CegarLoopResult]: For program point L4-24(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,634 INFO L274 CegarLoopResult]: For program point L4-25(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,635 INFO L274 CegarLoopResult]: For program point L4-26(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,635 INFO L274 CegarLoopResult]: For program point L4-27(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,635 INFO L274 CegarLoopResult]: For program point L4-28(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,636 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,636 INFO L274 CegarLoopResult]: For program point L4-29(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,636 INFO L274 CegarLoopResult]: For program point L4-30(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,636 INFO L274 CegarLoopResult]: For program point L4-31(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,636 INFO L274 CegarLoopResult]: For program point L38-1(lines 7 50) no Hoare annotation was computed. [2020-11-29 18:41:06,636 INFO L274 CegarLoopResult]: For program point L4-32(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,637 INFO L274 CegarLoopResult]: For program point L4-33(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,637 INFO L274 CegarLoopResult]: For program point L4-34(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,637 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,637 INFO L274 CegarLoopResult]: For program point L4-35(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,637 INFO L274 CegarLoopResult]: For program point L4-36(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,637 INFO L274 CegarLoopResult]: For program point L4-37(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,637 INFO L274 CegarLoopResult]: For program point L4-38(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,638 INFO L274 CegarLoopResult]: For program point L4-39(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,638 INFO L274 CegarLoopResult]: For program point L4-40(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,638 INFO L274 CegarLoopResult]: For program point L4-41(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,638 INFO L274 CegarLoopResult]: For program point L4-42(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,638 INFO L274 CegarLoopResult]: For program point L4-43(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,638 INFO L274 CegarLoopResult]: For program point L4-44(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,639 INFO L274 CegarLoopResult]: For program point L4-45(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,639 INFO L274 CegarLoopResult]: For program point L4-46(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,639 INFO L274 CegarLoopResult]: For program point L22-1(lines 7 50) no Hoare annotation was computed. [2020-11-29 18:41:06,639 INFO L274 CegarLoopResult]: For program point L4-47(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,639 INFO L274 CegarLoopResult]: For program point L4-48(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,639 INFO L274 CegarLoopResult]: For program point L4-49(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,639 INFO L274 CegarLoopResult]: For program point L4-50(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,640 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,640 INFO L274 CegarLoopResult]: For program point L4-51(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,640 INFO L274 CegarLoopResult]: For program point L4-52(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,640 INFO L274 CegarLoopResult]: For program point L4-53(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,640 INFO L274 CegarLoopResult]: For program point L4-54(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,640 INFO L274 CegarLoopResult]: For program point L4-55(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,641 INFO L274 CegarLoopResult]: For program point L4-56(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,641 INFO L274 CegarLoopResult]: For program point L4-57(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,641 INFO L274 CegarLoopResult]: For program point L4-58(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,641 INFO L274 CegarLoopResult]: For program point L4-59(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,641 INFO L274 CegarLoopResult]: For program point L4-60(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,641 INFO L274 CegarLoopResult]: For program point L4-61(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,641 INFO L274 CegarLoopResult]: For program point L39-1(lines 7 50) no Hoare annotation was computed. [2020-11-29 18:41:06,642 INFO L274 CegarLoopResult]: For program point L4-62(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,642 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,642 INFO L274 CegarLoopResult]: For program point L6(lines 6 50) no Hoare annotation was computed. [2020-11-29 18:41:06,642 INFO L274 CegarLoopResult]: For program point L4-63(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,642 INFO L274 CegarLoopResult]: For program point L4-64(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,642 INFO L274 CegarLoopResult]: For program point L4-65(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,643 INFO L274 CegarLoopResult]: For program point L4-66(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,643 INFO L274 CegarLoopResult]: For program point L4-67(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,643 INFO L274 CegarLoopResult]: For program point L4-68(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,643 INFO L274 CegarLoopResult]: For program point L4-69(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,643 INFO L274 CegarLoopResult]: For program point L4-70(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,643 INFO L274 CegarLoopResult]: For program point L4-71(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,643 INFO L274 CegarLoopResult]: For program point L23-1(lines 7 50) no Hoare annotation was computed. [2020-11-29 18:41:06,644 INFO L274 CegarLoopResult]: For program point L40-1(lines 7 50) no Hoare annotation was computed. [2020-11-29 18:41:06,644 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,644 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,644 INFO L274 CegarLoopResult]: For program point L24-1(lines 7 50) no Hoare annotation was computed. [2020-11-29 18:41:06,644 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,644 INFO L274 CegarLoopResult]: For program point L41-1(lines 7 50) no Hoare annotation was computed. [2020-11-29 18:41:06,645 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,645 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 18:41:06,645 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,645 INFO L274 CegarLoopResult]: For program point L25-1(lines 7 50) no Hoare annotation was computed. [2020-11-29 18:41:06,645 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,645 INFO L274 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-11-29 18:41:06,646 INFO L274 CegarLoopResult]: For program point L42-1(lines 7 50) no Hoare annotation was computed. [2020-11-29 18:41:06,646 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,646 INFO L274 CegarLoopResult]: For program point L9-2(lines 7 50) no Hoare annotation was computed. [2020-11-29 18:41:06,646 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,646 INFO L274 CegarLoopResult]: For program point L26-1(line 26) no Hoare annotation was computed. [2020-11-29 18:41:06,646 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,647 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,647 INFO L274 CegarLoopResult]: For program point L43-1(lines 7 50) no Hoare annotation was computed. [2020-11-29 18:41:06,647 INFO L274 CegarLoopResult]: For program point L10-1(lines 7 50) no Hoare annotation was computed. [2020-11-29 18:41:06,647 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,647 INFO L274 CegarLoopResult]: For program point L44-1(lines 7 50) no Hoare annotation was computed. [2020-11-29 18:41:06,647 INFO L274 CegarLoopResult]: For program point L11-1(lines 7 50) no Hoare annotation was computed. [2020-11-29 18:41:06,648 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,648 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,648 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 18:41:06,648 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,648 INFO L274 CegarLoopResult]: For program point L45-1(lines 7 50) no Hoare annotation was computed. [2020-11-29 18:41:06,648 INFO L274 CegarLoopResult]: For program point L12-1(lines 7 50) no Hoare annotation was computed. [2020-11-29 18:41:06,648 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,649 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,649 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,649 INFO L274 CegarLoopResult]: For program point L46-1(lines 7 50) no Hoare annotation was computed. [2020-11-29 18:41:06,649 INFO L274 CegarLoopResult]: For program point L13-1(lines 7 50) no Hoare annotation was computed. [2020-11-29 18:41:06,649 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,649 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-11-29 18:41:06,650 INFO L274 CegarLoopResult]: For program point L30-2(lines 7 50) no Hoare annotation was computed. [2020-11-29 18:41:06,650 INFO L274 CegarLoopResult]: For program point L47-1(lines 7 50) no Hoare annotation was computed. [2020-11-29 18:41:06,650 INFO L274 CegarLoopResult]: For program point L14-1(lines 7 50) no Hoare annotation was computed. [2020-11-29 18:41:06,650 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,650 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,650 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,651 INFO L274 CegarLoopResult]: For program point L48-1(lines 7 50) no Hoare annotation was computed. [2020-11-29 18:41:06,651 INFO L274 CegarLoopResult]: For program point L15-1(lines 7 50) no Hoare annotation was computed. [2020-11-29 18:41:06,651 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,651 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 18:41:06,651 INFO L274 CegarLoopResult]: For program point L32-1(lines 7 50) no Hoare annotation was computed. [2020-11-29 18:41:06,651 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,651 INFO L274 CegarLoopResult]: For program point L16-1(lines 7 50) no Hoare annotation was computed. [2020-11-29 18:41:06,652 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,652 INFO L274 CegarLoopResult]: For program point L33-1(lines 7 50) no Hoare annotation was computed. [2020-11-29 18:41:06,652 INFO L274 CegarLoopResult]: For program point L17-1(lines 7 50) no Hoare annotation was computed. [2020-11-29 18:41:06,652 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,652 INFO L274 CegarLoopResult]: For program point L34-1(lines 7 50) no Hoare annotation was computed. [2020-11-29 18:41:06,652 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,653 INFO L274 CegarLoopResult]: For program point L18-1(lines 7 50) no Hoare annotation was computed. [2020-11-29 18:41:06,653 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 18:41:06,653 INFO L274 CegarLoopResult]: For program point L35-1(lines 7 50) no Hoare annotation was computed. [2020-11-29 18:41:06,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:41:06 BoogieIcfgContainer [2020-11-29 18:41:06,664 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 18:41:06,664 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:41:06,664 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:41:06,665 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:41:06,665 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:41:05" (3/4) ... [2020-11-29 18:41:06,668 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 18:41:06,690 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-29 18:41:06,691 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 18:41:06,692 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-29 18:41:06,692 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 18:41:06,783 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2f669ded-67d2-4d34-9215-b07349b8744b/bin/uautomizer/witness.graphml [2020-11-29 18:41:06,784 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:41:06,786 INFO L168 Benchmark]: Toolchain (without parser) took 2909.20 ms. Allocated memory was 65.0 MB in the beginning and 83.9 MB in the end (delta: 18.9 MB). Free memory was 46.9 MB in the beginning and 36.0 MB in the end (delta: 10.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 16.1 GB. [2020-11-29 18:41:06,786 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 65.0 MB. Free memory is still 48.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:41:06,787 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.56 ms. Allocated memory is still 65.0 MB. Free memory was 46.6 MB in the beginning and 35.3 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 18:41:06,787 INFO L168 Benchmark]: Boogie Procedure Inliner took 111.90 ms. Allocated memory is still 65.0 MB. Free memory was 35.3 MB in the beginning and 48.7 MB in the end (delta: -13.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:41:06,788 INFO L168 Benchmark]: Boogie Preprocessor took 45.90 ms. Allocated memory is still 65.0 MB. Free memory was 48.7 MB in the beginning and 46.9 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:41:06,788 INFO L168 Benchmark]: RCFGBuilder took 914.93 ms. Allocated memory was 65.0 MB in the beginning and 83.9 MB in the end (delta: 18.9 MB). Free memory was 46.9 MB in the beginning and 57.8 MB in the end (delta: -10.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 16.1 GB. [2020-11-29 18:41:06,789 INFO L168 Benchmark]: TraceAbstraction took 1389.95 ms. Allocated memory is still 83.9 MB. Free memory was 57.3 MB in the beginning and 41.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. [2020-11-29 18:41:06,789 INFO L168 Benchmark]: Witness Printer took 119.52 ms. Allocated memory is still 83.9 MB. Free memory was 41.3 MB in the beginning and 36.0 MB in the end (delta: 5.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-29 18:41:06,792 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 65.0 MB. Free memory is still 48.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 318.56 ms. Allocated memory is still 65.0 MB. Free memory was 46.6 MB in the beginning and 35.3 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 111.90 ms. Allocated memory is still 65.0 MB. Free memory was 35.3 MB in the beginning and 48.7 MB in the end (delta: -13.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 45.90 ms. Allocated memory is still 65.0 MB. Free memory was 48.7 MB in the beginning and 46.9 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 914.93 ms. Allocated memory was 65.0 MB in the beginning and 83.9 MB in the end (delta: 18.9 MB). Free memory was 46.9 MB in the beginning and 57.8 MB in the end (delta: -10.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1389.95 ms. Allocated memory is still 83.9 MB. Free memory was 57.3 MB in the beginning and 41.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. * Witness Printer took 119.52 ms. Allocated memory is still 83.9 MB. Free memory was 41.3 MB in the beginning and 36.0 MB in the end (delta: 5.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 36 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 151 locations, 36 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 92 SDtfs, 17 SDslu, 38 SDs, 0 SdLazy, 21 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=151occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 52 ConstructedInterpolants, 1 QuantifiedInterpolants, 1398 SizeOfPredicates, 6 NumberOfNonLiveVariables, 72 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...