./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_1-2.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ea67eea7-0d28-48e6-9ad7-2844e3f1dd9d/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ea67eea7-0d28-48e6-9ad7-2844e3f1dd9d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ea67eea7-0d28-48e6-9ad7-2844e3f1dd9d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ea67eea7-0d28-48e6-9ad7-2844e3f1dd9d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-2.c.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ea67eea7-0d28-48e6-9ad7-2844e3f1dd9d/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ea67eea7-0d28-48e6-9ad7-2844e3f1dd9d/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1ba322bb221e3115ffe27697bd869d6c1c16c347 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/run_dir_ea67eea7-0d28-48e6-9ad7-2844e3f1dd9d/bin/uautomizer/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:11:05,535 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:11:05,561 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:11:05,637 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:11:05,637 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:11:05,639 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:11:05,642 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:11:05,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:11:05,648 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:11:05,650 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:11:05,651 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:11:05,653 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:11:05,654 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:11:05,656 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:11:05,659 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:11:05,661 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:11:05,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:11:05,671 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:11:05,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:11:05,685 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:11:05,698 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:11:05,700 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:11:05,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:11:05,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:11:05,708 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:11:05,716 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:11:05,716 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:11:05,718 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:11:05,719 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:11:05,720 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:11:05,722 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:11:05,724 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:11:05,725 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:11:05,726 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:11:05,728 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:11:05,729 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:11:05,730 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:11:05,730 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:11:05,731 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:11:05,732 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:11:05,733 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:11:05,734 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ea67eea7-0d28-48e6-9ad7-2844e3f1dd9d/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf [2020-11-28 03:11:05,766 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:11:05,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:11:05,768 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:11:05,769 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:11:05,769 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:11:05,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:11:05,770 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:11:05,770 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:11:05,770 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:11:05,771 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:11:05,771 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:11:05,771 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:11:05,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:11:05,772 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:11:05,772 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 03:11:05,773 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:11:05,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:11:05,773 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:11:05,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:11:05,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:11:05,774 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:11:05,774 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:11:05,775 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:11:05,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:11:05,775 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:11:05,776 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:11:05,776 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:11:05,776 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:11:05,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:11:05,777 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:11:05,777 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:11:05,778 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_ea67eea7-0d28-48e6-9ad7-2844e3f1dd9d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ea67eea7-0d28-48e6-9ad7-2844e3f1dd9d/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ba322bb221e3115ffe27697bd869d6c1c16c347 [2020-11-28 03:11:06,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:11:06,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:11:06,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:11:06,094 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:11:06,098 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:11:06,099 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ea67eea7-0d28-48e6-9ad7-2844e3f1dd9d/bin/uautomizer/../../sv-benchmarks/c/bitvector/soft_float_1-2.c.cil.c [2020-11-28 03:11:06,197 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ea67eea7-0d28-48e6-9ad7-2844e3f1dd9d/bin/uautomizer/data/25ad2ffbb/e5556abcae9d4b15838c5b2fdeface77/FLAG7b65ff0e0 [2020-11-28 03:11:06,840 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:11:06,841 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ea67eea7-0d28-48e6-9ad7-2844e3f1dd9d/sv-benchmarks/c/bitvector/soft_float_1-2.c.cil.c [2020-11-28 03:11:06,858 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ea67eea7-0d28-48e6-9ad7-2844e3f1dd9d/bin/uautomizer/data/25ad2ffbb/e5556abcae9d4b15838c5b2fdeface77/FLAG7b65ff0e0 [2020-11-28 03:11:07,097 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ea67eea7-0d28-48e6-9ad7-2844e3f1dd9d/bin/uautomizer/data/25ad2ffbb/e5556abcae9d4b15838c5b2fdeface77 [2020-11-28 03:11:07,100 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:11:07,102 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:11:07,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:11:07,106 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:11:07,111 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:11:07,114 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:11:07" (1/1) ... [2020-11-28 03:11:07,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@321876a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07, skipping insertion in model container [2020-11-28 03:11:07,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:11:07" (1/1) ... [2020-11-28 03:11:07,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:11:07,200 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:11:07,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:11:07,562 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:11:07,623 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:11:07,643 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:11:07,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07 WrapperNode [2020-11-28 03:11:07,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:11:07,646 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:11:07,646 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:11:07,646 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:11:07,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07" (1/1) ... [2020-11-28 03:11:07,669 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07" (1/1) ... [2020-11-28 03:11:07,740 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:11:07,741 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:11:07,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:11:07,742 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:11:07,765 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07" (1/1) ... [2020-11-28 03:11:07,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07" (1/1) ... [2020-11-28 03:11:07,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07" (1/1) ... [2020-11-28 03:11:07,770 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07" (1/1) ... [2020-11-28 03:11:07,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07" (1/1) ... [2020-11-28 03:11:07,790 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07" (1/1) ... [2020-11-28 03:11:07,794 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07" (1/1) ... [2020-11-28 03:11:07,800 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:11:07,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:11:07,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:11:07,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:11:07,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ea67eea7-0d28-48e6-9ad7-2844e3f1dd9d/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 [2020-11-28 03:11:07,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:11:07,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:11:07,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:11:07,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:11:08,976 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:11:08,979 INFO L298 CfgBuilder]: Removed 40 assume(true) statements. [2020-11-28 03:11:08,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:08 BoogieIcfgContainer [2020-11-28 03:11:08,986 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:11:08,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:11:08,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:11:08,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:11:08,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:11:07" (1/3) ... [2020-11-28 03:11:08,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b0f5e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:11:08, skipping insertion in model container [2020-11-28 03:11:08,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:07" (2/3) ... [2020-11-28 03:11:08,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b0f5e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:11:08, skipping insertion in model container [2020-11-28 03:11:08,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:08" (3/3) ... [2020-11-28 03:11:08,999 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_1-2.c.cil.c [2020-11-28 03:11:09,019 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:11:09,025 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 36 error locations. [2020-11-28 03:11:09,040 INFO L253 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2020-11-28 03:11:09,086 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:11:09,086 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:11:09,087 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:11:09,087 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:11:09,087 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:11:09,087 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:11:09,088 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:11:09,088 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:11:09,113 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2020-11-28 03:11:09,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 03:11:09,120 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:09,121 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:09,122 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:11:09,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:09,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1807791520, now seen corresponding path program 1 times [2020-11-28 03:11:09,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:09,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009506231] [2020-11-28 03:11:09,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:09,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:09,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:11:09,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009506231] [2020-11-28 03:11:09,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:09,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:11:09,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953149081] [2020-11-28 03:11:09,282 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:11:09,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:09,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:11:09,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:11:09,299 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 2 states. [2020-11-28 03:11:09,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:09,335 INFO L93 Difference]: Finished difference Result 305 states and 413 transitions. [2020-11-28 03:11:09,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:11:09,336 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-11-28 03:11:09,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:09,348 INFO L225 Difference]: With dead ends: 305 [2020-11-28 03:11:09,348 INFO L226 Difference]: Without dead ends: 123 [2020-11-28 03:11:09,352 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:11:09,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-11-28 03:11:09,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2020-11-28 03:11:09,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-11-28 03:11:09,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 146 transitions. [2020-11-28 03:11:09,403 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 146 transitions. Word has length 7 [2020-11-28 03:11:09,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:09,408 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 146 transitions. [2020-11-28 03:11:09,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:11:09,409 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 146 transitions. [2020-11-28 03:11:09,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 03:11:09,410 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:09,410 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:09,410 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:11:09,411 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:11:09,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:09,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1806850254, now seen corresponding path program 1 times [2020-11-28 03:11:09,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:09,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434148141] [2020-11-28 03:11:09,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:09,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:09,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:11:09,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434148141] [2020-11-28 03:11:09,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:09,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:11:09,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419081263] [2020-11-28 03:11:09,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:11:09,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:09,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:11:09,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:09,528 INFO L87 Difference]: Start difference. First operand 123 states and 146 transitions. Second operand 3 states. [2020-11-28 03:11:09,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:09,788 INFO L93 Difference]: Finished difference Result 243 states and 286 transitions. [2020-11-28 03:11:09,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:11:09,800 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-11-28 03:11:09,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:09,803 INFO L225 Difference]: With dead ends: 243 [2020-11-28 03:11:09,803 INFO L226 Difference]: Without dead ends: 139 [2020-11-28 03:11:09,805 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:09,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-11-28 03:11:09,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 136. [2020-11-28 03:11:09,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-11-28 03:11:09,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 160 transitions. [2020-11-28 03:11:09,822 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 160 transitions. Word has length 7 [2020-11-28 03:11:09,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:09,823 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 160 transitions. [2020-11-28 03:11:09,823 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:11:09,823 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 160 transitions. [2020-11-28 03:11:09,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 03:11:09,824 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:09,824 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:09,825 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:11:09,825 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:11:09,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:09,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1493296196, now seen corresponding path program 1 times [2020-11-28 03:11:09,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:09,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70103325] [2020-11-28 03:11:09,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:09,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:09,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:11:09,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70103325] [2020-11-28 03:11:09,894 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:09,894 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:11:09,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254387753] [2020-11-28 03:11:09,895 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:11:09,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:09,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:11:09,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:11:09,897 INFO L87 Difference]: Start difference. First operand 136 states and 160 transitions. Second operand 4 states. [2020-11-28 03:11:10,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:10,100 INFO L93 Difference]: Finished difference Result 197 states and 230 transitions. [2020-11-28 03:11:10,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:11:10,102 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-28 03:11:10,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:10,105 INFO L225 Difference]: With dead ends: 197 [2020-11-28 03:11:10,109 INFO L226 Difference]: Without dead ends: 190 [2020-11-28 03:11:10,110 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:11:10,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-11-28 03:11:10,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 137. [2020-11-28 03:11:10,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-11-28 03:11:10,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 162 transitions. [2020-11-28 03:11:10,148 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 162 transitions. Word has length 10 [2020-11-28 03:11:10,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:10,149 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 162 transitions. [2020-11-28 03:11:10,150 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:11:10,150 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 162 transitions. [2020-11-28 03:11:10,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 03:11:10,152 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:10,153 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:10,153 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:11:10,154 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:11:10,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:10,155 INFO L82 PathProgramCache]: Analyzing trace with hash 794034541, now seen corresponding path program 1 times [2020-11-28 03:11:10,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:10,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000476670] [2020-11-28 03:11:10,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:10,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:10,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:11:10,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000476670] [2020-11-28 03:11:10,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:10,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:11:10,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686015117] [2020-11-28 03:11:10,234 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:11:10,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:10,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:11:10,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:10,236 INFO L87 Difference]: Start difference. First operand 137 states and 162 transitions. Second operand 3 states. [2020-11-28 03:11:10,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:10,305 INFO L93 Difference]: Finished difference Result 234 states and 277 transitions. [2020-11-28 03:11:10,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:11:10,306 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-11-28 03:11:10,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:10,309 INFO L225 Difference]: With dead ends: 234 [2020-11-28 03:11:10,309 INFO L226 Difference]: Without dead ends: 100 [2020-11-28 03:11:10,311 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:10,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-11-28 03:11:10,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2020-11-28 03:11:10,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-11-28 03:11:10,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 118 transitions. [2020-11-28 03:11:10,325 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 118 transitions. Word has length 10 [2020-11-28 03:11:10,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:10,326 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 118 transitions. [2020-11-28 03:11:10,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:11:10,326 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 118 transitions. [2020-11-28 03:11:10,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:11:10,327 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:10,327 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:10,327 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:11:10,328 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:11:10,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:10,329 INFO L82 PathProgramCache]: Analyzing trace with hash 952458318, now seen corresponding path program 1 times [2020-11-28 03:11:10,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:10,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295174976] [2020-11-28 03:11:10,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:10,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:10,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:11:10,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295174976] [2020-11-28 03:11:10,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:10,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:11:10,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992319655] [2020-11-28 03:11:10,414 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:11:10,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:10,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:11:10,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:10,415 INFO L87 Difference]: Start difference. First operand 100 states and 118 transitions. Second operand 3 states. [2020-11-28 03:11:10,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:10,538 INFO L93 Difference]: Finished difference Result 144 states and 167 transitions. [2020-11-28 03:11:10,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:11:10,540 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-11-28 03:11:10,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:10,541 INFO L225 Difference]: With dead ends: 144 [2020-11-28 03:11:10,541 INFO L226 Difference]: Without dead ends: 142 [2020-11-28 03:11:10,542 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:10,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-11-28 03:11:10,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 98. [2020-11-28 03:11:10,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-11-28 03:11:10,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 116 transitions. [2020-11-28 03:11:10,553 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 116 transitions. Word has length 11 [2020-11-28 03:11:10,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:10,554 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 116 transitions. [2020-11-28 03:11:10,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:11:10,554 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 116 transitions. [2020-11-28 03:11:10,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 03:11:10,555 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:10,555 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:10,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:11:10,560 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:11:10,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:10,561 INFO L82 PathProgramCache]: Analyzing trace with hash 348884996, now seen corresponding path program 1 times [2020-11-28 03:11:10,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:10,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530151182] [2020-11-28 03:11:10,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:10,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:10,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:11:10,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530151182] [2020-11-28 03:11:10,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:10,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:11:10,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635787776] [2020-11-28 03:11:10,660 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:11:10,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:10,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:11:10,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:11:10,661 INFO L87 Difference]: Start difference. First operand 98 states and 116 transitions. Second operand 4 states. [2020-11-28 03:11:10,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:10,810 INFO L93 Difference]: Finished difference Result 151 states and 176 transitions. [2020-11-28 03:11:10,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:11:10,812 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-28 03:11:10,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:10,813 INFO L225 Difference]: With dead ends: 151 [2020-11-28 03:11:10,813 INFO L226 Difference]: Without dead ends: 148 [2020-11-28 03:11:10,814 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:11:10,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-11-28 03:11:10,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 102. [2020-11-28 03:11:10,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-11-28 03:11:10,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 121 transitions. [2020-11-28 03:11:10,834 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 121 transitions. Word has length 12 [2020-11-28 03:11:10,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:10,834 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 121 transitions. [2020-11-28 03:11:10,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:11:10,834 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 121 transitions. [2020-11-28 03:11:10,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 03:11:10,835 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:10,836 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:10,842 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:11:10,843 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:11:10,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:10,844 INFO L82 PathProgramCache]: Analyzing trace with hash -59736963, now seen corresponding path program 1 times [2020-11-28 03:11:10,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:10,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104421053] [2020-11-28 03:11:10,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:10,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:10,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:11:10,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104421053] [2020-11-28 03:11:10,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:10,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:11:10,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32981379] [2020-11-28 03:11:10,897 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:11:10,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:10,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:11:10,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:11:10,898 INFO L87 Difference]: Start difference. First operand 102 states and 121 transitions. Second operand 4 states. [2020-11-28 03:11:11,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:11,036 INFO L93 Difference]: Finished difference Result 155 states and 182 transitions. [2020-11-28 03:11:11,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:11:11,037 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-28 03:11:11,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:11,038 INFO L225 Difference]: With dead ends: 155 [2020-11-28 03:11:11,039 INFO L226 Difference]: Without dead ends: 153 [2020-11-28 03:11:11,039 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:11:11,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-11-28 03:11:11,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 105. [2020-11-28 03:11:11,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-11-28 03:11:11,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 125 transitions. [2020-11-28 03:11:11,049 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 125 transitions. Word has length 13 [2020-11-28 03:11:11,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:11,050 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 125 transitions. [2020-11-28 03:11:11,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:11:11,050 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 125 transitions. [2020-11-28 03:11:11,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 03:11:11,051 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:11,052 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:11,052 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:11:11,053 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:11:11,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:11,053 INFO L82 PathProgramCache]: Analyzing trace with hash -2067373522, now seen corresponding path program 1 times [2020-11-28 03:11:11,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:11,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061087431] [2020-11-28 03:11:11,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:11,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:11:11,071 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:11:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:11:11,096 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:11:11,126 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:11:11,127 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:11:11,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:11:11,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:11:11 BoogieIcfgContainer [2020-11-28 03:11:11,173 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:11:11,174 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:11:11,174 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:11:11,174 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:11:11,175 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:08" (3/4) ... [2020-11-28 03:11:11,179 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:11:11,179 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:11:11,182 INFO L168 Benchmark]: Toolchain (without parser) took 4078.82 ms. Allocated memory was 109.1 MB in the beginning and 134.2 MB in the end (delta: 25.2 MB). Free memory was 82.2 MB in the beginning and 60.5 MB in the end (delta: 21.6 MB). Peak memory consumption was 46.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:11,183 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 109.1 MB. Free memory is still 66.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:11:11,184 INFO L168 Benchmark]: CACSL2BoogieTranslator took 538.89 ms. Allocated memory is still 109.1 MB. Free memory was 81.9 MB in the beginning and 82.8 MB in the end (delta: -844.8 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:11,184 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.56 ms. Allocated memory is still 109.1 MB. Free memory was 82.8 MB in the beginning and 80.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:11,185 INFO L168 Benchmark]: Boogie Preprocessor took 59.20 ms. Allocated memory is still 109.1 MB. Free memory was 80.0 MB in the beginning and 78.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:11,186 INFO L168 Benchmark]: RCFGBuilder took 1184.72 ms. Allocated memory was 109.1 MB in the beginning and 134.2 MB in the end (delta: 25.2 MB). Free memory was 78.2 MB in the beginning and 96.7 MB in the end (delta: -18.6 MB). Peak memory consumption was 27.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:11,187 INFO L168 Benchmark]: TraceAbstraction took 2185.42 ms. Allocated memory is still 134.2 MB. Free memory was 96.2 MB in the beginning and 61.4 MB in the end (delta: 34.8 MB). Peak memory consumption was 37.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:11,188 INFO L168 Benchmark]: Witness Printer took 5.57 ms. Allocated memory is still 134.2 MB. Free memory was 61.4 MB in the beginning and 60.5 MB in the end (delta: 879.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:11:11,192 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 109.1 MB. Free memory is still 66.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 538.89 ms. Allocated memory is still 109.1 MB. Free memory was 81.9 MB in the beginning and 82.8 MB in the end (delta: -844.8 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 94.56 ms. Allocated memory is still 109.1 MB. Free memory was 82.8 MB in the beginning and 80.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 59.20 ms. Allocated memory is still 109.1 MB. Free memory was 80.0 MB in the beginning and 78.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1184.72 ms. Allocated memory was 109.1 MB in the beginning and 134.2 MB in the end (delta: 25.2 MB). Free memory was 78.2 MB in the beginning and 96.7 MB in the end (delta: -18.6 MB). Peak memory consumption was 27.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2185.42 ms. Allocated memory is still 134.2 MB. Free memory was 96.2 MB in the beginning and 61.4 MB in the end (delta: 34.8 MB). Peak memory consumption was 37.0 MB. Max. memory is 16.1 GB. * Witness Printer took 5.57 ms. Allocated memory is still 134.2 MB. Free memory was 61.4 MB in the beginning and 60.5 MB in the end (delta: 879.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 73]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseAnd at line 72. Possible FailurePath: [L222] unsigned int a ; [L223] unsigned int ma = __VERIFIER_nondet_uint(); [L224] signed char ea = __VERIFIER_nondet_char(); [L225] unsigned int b ; [L226] unsigned int mb = __VERIFIER_nondet_uint(); [L227] signed char eb = __VERIFIER_nondet_char(); [L228] unsigned int r_add ; [L229] unsigned int zero ; [L230] int sa ; [L231] int sb ; [L232] int tmp ; [L233] int tmp___0 ; [L234] int tmp___1 ; [L235] int tmp___2 ; [L236] int tmp___3 ; [L237] int tmp___4 ; [L238] int tmp___5 ; [L239] int tmp___6 ; [L240] int tmp___7 ; [L241] int tmp___8 ; [L242] int tmp___9 ; [L243] int __retres23 ; [L21] unsigned int res ; [L22] unsigned int __retres4 ; [L25] COND TRUE ! m [L26] __retres4 = 0U [L76] return (__retres4); [L247] zero = base2flt(0, 0) [L21] unsigned int res ; [L22] unsigned int __retres4 ; [L25] COND FALSE !(! m) [L31] COND FALSE !(m < 1U << 24U) [L53] COND TRUE 1 [L55] COND FALSE !(m >= 1U << 25U) [L72] m = m & ~ (1U << 24U) [L73] EXPR e + 128 [L73] (e + 128) << 24U - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 165 locations, 36 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.0s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 979 SDtfs, 733 SDslu, 436 SDs, 0 SdLazy, 267 SolverSat, 71 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred 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: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 194 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 1623 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...