./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c2c3bdcf-de76-4123-8da7-74b83df59b1a/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c2c3bdcf-de76-4123-8da7-74b83df59b1a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c2c3bdcf-de76-4123-8da7-74b83df59b1a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c2c3bdcf-de76-4123-8da7-74b83df59b1a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c2c3bdcf-de76-4123-8da7-74b83df59b1a/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c2c3bdcf-de76-4123-8da7-74b83df59b1a/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 64bit --witnessprinter.graph.data.programhash 4f5dfa3dfde4da491a923b915452cddcc4ed5c87 ........................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 22:34:55,016 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:34:55,024 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:34:55,077 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:34:55,078 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:34:55,080 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:34:55,097 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:34:55,100 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:34:55,102 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:34:55,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:34:55,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:34:55,107 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:34:55,113 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:34:55,115 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:34:55,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:34:55,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:34:55,120 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:34:55,121 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:34:55,124 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:34:55,130 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:34:55,137 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:34:55,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:34:55,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:34:55,144 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:34:55,151 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:34:55,156 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:34:55,157 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:34:55,158 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:34:55,160 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:34:55,162 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:34:55,162 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:34:55,164 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:34:55,166 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:34:55,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:34:55,170 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:34:55,170 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:34:55,171 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:34:55,171 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:34:55,172 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:34:55,173 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:34:55,174 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:34:55,178 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c2c3bdcf-de76-4123-8da7-74b83df59b1a/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-11-29 22:34:55,215 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:34:55,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:34:55,217 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:34:55,218 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:34:55,218 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:34:55,218 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:34:55,218 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 22:34:55,219 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:34:55,219 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:34:55,219 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 22:34:55,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 22:34:55,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 22:34:55,220 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-29 22:34:55,220 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:34:55,221 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:34:55,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 22:34:55,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:34:55,222 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:34:55,222 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 22:34:55,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 22:34:55,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:34:55,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:34:55,223 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 22:34:55,223 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 22:34:55,223 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:34:55,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 22:34:55,224 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 22:34:55,224 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:34:55,225 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_c2c3bdcf-de76-4123-8da7-74b83df59b1a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c2c3bdcf-de76-4123-8da7-74b83df59b1a/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f5dfa3dfde4da491a923b915452cddcc4ed5c87 [2020-11-29 22:34:55,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:34:55,529 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:34:55,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:34:55,535 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:34:55,536 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:34:55,538 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c2c3bdcf-de76-4123-8da7-74b83df59b1a/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2020-11-29 22:34:55,623 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c2c3bdcf-de76-4123-8da7-74b83df59b1a/bin/uautomizer/data/715a7c8ef/aa57bff647d7431aba365d4a0dea6a66/FLAG2b473ae6b [2020-11-29 22:34:56,032 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:34:56,032 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c2c3bdcf-de76-4123-8da7-74b83df59b1a/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2020-11-29 22:34:56,038 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c2c3bdcf-de76-4123-8da7-74b83df59b1a/bin/uautomizer/data/715a7c8ef/aa57bff647d7431aba365d4a0dea6a66/FLAG2b473ae6b [2020-11-29 22:34:56,443 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c2c3bdcf-de76-4123-8da7-74b83df59b1a/bin/uautomizer/data/715a7c8ef/aa57bff647d7431aba365d4a0dea6a66 [2020-11-29 22:34:56,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:34:56,447 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:34:56,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:34:56,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:34:56,454 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:34:56,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:34:56" (1/1) ... [2020-11-29 22:34:56,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@122b6b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:34:56, skipping insertion in model container [2020-11-29 22:34:56,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:34:56" (1/1) ... [2020-11-29 22:34:56,469 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:34:56,481 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:34:56,669 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:34:56,680 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:34:56,701 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:34:56,723 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:34:56,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:34:56 WrapperNode [2020-11-29 22:34:56,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:34:56,728 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:34:56,729 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:34:56,729 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:34:56,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:34:56" (1/1) ... [2020-11-29 22:34:56,746 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:34:56" (1/1) ... [2020-11-29 22:34:56,773 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:34:56,777 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:34:56,778 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:34:56,778 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:34:56,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:34:56" (1/1) ... [2020-11-29 22:34:56,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:34:56" (1/1) ... [2020-11-29 22:34:56,800 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:34:56" (1/1) ... [2020-11-29 22:34:56,802 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:34:56" (1/1) ... [2020-11-29 22:34:56,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:34:56" (1/1) ... [2020-11-29 22:34:56,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:34:56" (1/1) ... [2020-11-29 22:34:56,819 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:34:56" (1/1) ... [2020-11-29 22:34:56,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:34:56,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:34:56,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:34:56,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:34:56,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:34:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c2c3bdcf-de76-4123-8da7-74b83df59b1a/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 22:34:56,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:34:56,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:34:57,096 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:34:57,097 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-29 22:34:57,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:34:57 BoogieIcfgContainer [2020-11-29 22:34:57,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:34:57,101 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 22:34:57,101 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 22:34:57,119 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 22:34:57,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 10:34:56" (1/3) ... [2020-11-29 22:34:57,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2abb06df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:34:57, skipping insertion in model container [2020-11-29 22:34:57,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:34:56" (2/3) ... [2020-11-29 22:34:57,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2abb06df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:34:57, skipping insertion in model container [2020-11-29 22:34:57,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:34:57" (3/3) ... [2020-11-29 22:34:57,122 INFO L111 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2020-11-29 22:34:57,151 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 22:34:57,156 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-11-29 22:34:57,185 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-29 22:34:57,227 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 22:34:57,228 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 22:34:57,228 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 22:34:57,228 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:34:57,228 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:34:57,229 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 22:34:57,229 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:34:57,229 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 22:34:57,245 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-11-29 22:34:57,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 22:34:57,251 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:34:57,252 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-29 22:34:57,252 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:34:57,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:34:57,259 INFO L82 PathProgramCache]: Analyzing trace with hash 963476, now seen corresponding path program 1 times [2020-11-29 22:34:57,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:34:57,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303056791] [2020-11-29 22:34:57,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:34:57,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:34:57,468 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 22:34:57,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303056791] [2020-11-29 22:34:57,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:34:57,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:34:57,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105746688] [2020-11-29 22:34:57,475 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:34:57,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:34:57,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:34:57,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:34:57,498 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2020-11-29 22:34:57,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:34:57,532 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2020-11-29 22:34:57,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:34:57,534 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-29 22:34:57,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:34:57,542 INFO L225 Difference]: With dead ends: 28 [2020-11-29 22:34:57,542 INFO L226 Difference]: Without dead ends: 10 [2020-11-29 22:34:57,544 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 [2020-11-29 22:34:57,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-11-29 22:34:57,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-11-29 22:34:57,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-29 22:34:57,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2020-11-29 22:34:57,572 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 4 [2020-11-29 22:34:57,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:34:57,573 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2020-11-29 22:34:57,573 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:34:57,573 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2020-11-29 22:34:57,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 22:34:57,573 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:34:57,574 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-29 22:34:57,574 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 22:34:57,574 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:34:57,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:34:57,576 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2020-11-29 22:34:57,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:34:57,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206062665] [2020-11-29 22:34:57,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:34:57,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:34:57,599 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 22:34:57,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206062665] [2020-11-29 22:34:57,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:34:57,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:34:57,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545431774] [2020-11-29 22:34:57,601 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:34:57,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:34:57,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:34:57,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:34:57,603 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 3 states. [2020-11-29 22:34:57,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:34:57,664 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2020-11-29 22:34:57,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:34:57,664 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-29 22:34:57,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:34:57,665 INFO L225 Difference]: With dead ends: 18 [2020-11-29 22:34:57,665 INFO L226 Difference]: Without dead ends: 17 [2020-11-29 22:34:57,666 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 [2020-11-29 22:34:57,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-11-29 22:34:57,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 12. [2020-11-29 22:34:57,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-29 22:34:57,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2020-11-29 22:34:57,670 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 4 [2020-11-29 22:34:57,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:34:57,670 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2020-11-29 22:34:57,670 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:34:57,670 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-11-29 22:34:57,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 22:34:57,671 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:34:57,671 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-29 22:34:57,671 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 22:34:57,672 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:34:57,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:34:57,673 INFO L82 PathProgramCache]: Analyzing trace with hash 29867816, now seen corresponding path program 1 times [2020-11-29 22:34:57,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:34:57,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579833175] [2020-11-29 22:34:57,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:34:57,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:34:57,707 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 22:34:57,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579833175] [2020-11-29 22:34:57,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:34:57,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-29 22:34:57,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31618166] [2020-11-29 22:34:57,708 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:34:57,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:34:57,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:34:57,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:34:57,710 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 3 states. [2020-11-29 22:34:57,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:34:57,751 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2020-11-29 22:34:57,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:34:57,753 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-29 22:34:57,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:34:57,753 INFO L225 Difference]: With dead ends: 12 [2020-11-29 22:34:57,753 INFO L226 Difference]: Without dead ends: 11 [2020-11-29 22:34:57,754 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:34:57,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-11-29 22:34:57,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-11-29 22:34:57,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-29 22:34:57,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-11-29 22:34:57,759 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 5 [2020-11-29 22:34:57,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:34:57,760 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-11-29 22:34:57,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:34:57,760 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-11-29 22:34:57,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 22:34:57,761 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:34:57,761 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-29 22:34:57,761 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 22:34:57,761 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:34:57,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:34:57,762 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2020-11-29 22:34:57,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:34:57,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427070743] [2020-11-29 22:34:57,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:34:57,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:34:57,783 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 22:34:57,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427070743] [2020-11-29 22:34:57,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:34:57,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:34:57,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659264640] [2020-11-29 22:34:57,784 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:34:57,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:34:57,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:34:57,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:34:57,786 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand 3 states. [2020-11-29 22:34:57,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:34:57,812 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2020-11-29 22:34:57,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:34:57,813 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-29 22:34:57,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:34:57,813 INFO L225 Difference]: With dead ends: 12 [2020-11-29 22:34:57,813 INFO L226 Difference]: Without dead ends: 11 [2020-11-29 22:34:57,814 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 [2020-11-29 22:34:57,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-11-29 22:34:57,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2020-11-29 22:34:57,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-29 22:34:57,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2020-11-29 22:34:57,817 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 5 [2020-11-29 22:34:57,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:34:57,818 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2020-11-29 22:34:57,818 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:34:57,818 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2020-11-29 22:34:57,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 22:34:57,818 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:34:57,819 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2020-11-29 22:34:57,819 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 22:34:57,819 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:34:57,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:34:57,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1360166548, now seen corresponding path program 1 times [2020-11-29 22:34:57,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:34:57,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158740992] [2020-11-29 22:34:57,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:34:57,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:34:57,872 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 22:34:57,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158740992] [2020-11-29 22:34:57,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:34:57,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:34:57,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746871615] [2020-11-29 22:34:57,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:34:57,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:34:57,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:34:57,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:34:57,875 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand 3 states. [2020-11-29 22:34:57,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:34:57,898 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2020-11-29 22:34:57,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:34:57,898 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-11-29 22:34:57,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:34:57,899 INFO L225 Difference]: With dead ends: 13 [2020-11-29 22:34:57,899 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 22:34:57,900 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 [2020-11-29 22:34:57,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 22:34:57,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 22:34:57,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 22:34:57,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 22:34:57,900 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2020-11-29 22:34:57,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:34:57,901 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:34:57,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:34:57,901 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 22:34:57,901 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 22:34:57,901 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 22:34:57,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 22:34:57,946 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2020-11-29 22:34:57,946 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 22:34:57,946 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2020-11-29 22:34:57,947 INFO L270 CegarLoopResult]: At program point L19-2(lines 19 21) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~j~0) (<= 0 (+ ULTIMATE.start_main_~i~0 2147483648)) (<= ULTIMATE.start_main_~i~0 4)) [2020-11-29 22:34:57,947 INFO L274 CegarLoopResult]: For program point L19-3(lines 19 21) no Hoare annotation was computed. [2020-11-29 22:34:57,947 INFO L270 CegarLoopResult]: At program point L17-2(lines 17 23) the Hoare annotation is: (<= 0 (+ ULTIMATE.start_main_~i~0 2147483648)) [2020-11-29 22:34:57,947 INFO L274 CegarLoopResult]: For program point L17-3(lines 17 23) no Hoare annotation was computed. [2020-11-29 22:34:57,947 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2020-11-29 22:34:57,947 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2020-11-29 22:34:57,948 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 22:34:57,948 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 22:34:57,948 INFO L277 CegarLoopResult]: At program point L24(lines 13 25) the Hoare annotation is: true [2020-11-29 22:34:57,948 INFO L274 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-11-29 22:34:57,948 INFO L274 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-11-29 22:34:57,948 INFO L274 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-11-29 22:34:57,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 10:34:57 BoogieIcfgContainer [2020-11-29 22:34:57,965 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 22:34:57,965 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:34:57,966 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:34:57,966 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:34:57,966 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:34:57" (3/4) ... [2020-11-29 22:34:57,972 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 22:34:57,988 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-29 22:34:57,988 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-29 22:34:58,024 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c2c3bdcf-de76-4123-8da7-74b83df59b1a/bin/uautomizer/witness.graphml [2020-11-29 22:34:58,024 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:34:58,032 INFO L168 Benchmark]: Toolchain (without parser) took 1577.95 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 47.3 MB in the beginning and 71.9 MB in the end (delta: -24.5 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. [2020-11-29 22:34:58,032 INFO L168 Benchmark]: CDTParser took 0.88 ms. Allocated memory is still 77.6 MB. Free memory was 49.9 MB in the beginning and 49.8 MB in the end (delta: 28.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:34:58,033 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.86 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 47.1 MB in the beginning and 73.3 MB in the end (delta: -26.1 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2020-11-29 22:34:58,033 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.45 ms. Allocated memory is still 94.4 MB. Free memory was 73.3 MB in the beginning and 72.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:34:58,034 INFO L168 Benchmark]: Boogie Preprocessor took 43.59 ms. Allocated memory is still 94.4 MB. Free memory was 72.2 MB in the beginning and 71.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:34:58,034 INFO L168 Benchmark]: RCFGBuilder took 276.96 ms. Allocated memory is still 94.4 MB. Free memory was 71.2 MB in the beginning and 62.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 22:34:58,035 INFO L168 Benchmark]: TraceAbstraction took 863.47 ms. Allocated memory is still 94.4 MB. Free memory was 61.8 MB in the beginning and 47.3 MB in the end (delta: 14.5 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. [2020-11-29 22:34:58,035 INFO L168 Benchmark]: Witness Printer took 58.96 ms. Allocated memory is still 94.4 MB. Free memory was 46.9 MB in the beginning and 71.9 MB in the end (delta: -25.0 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. [2020-11-29 22:34:58,040 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.88 ms. Allocated memory is still 77.6 MB. Free memory was 49.9 MB in the beginning and 49.8 MB in the end (delta: 28.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 275.86 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 47.1 MB in the beginning and 73.3 MB in the end (delta: -26.1 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.45 ms. Allocated memory is still 94.4 MB. Free memory was 73.3 MB in the beginning and 72.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.59 ms. Allocated memory is still 94.4 MB. Free memory was 72.2 MB in the beginning and 71.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 276.96 ms. Allocated memory is still 94.4 MB. Free memory was 71.2 MB in the beginning and 62.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 863.47 ms. Allocated memory is still 94.4 MB. Free memory was 61.8 MB in the beginning and 47.3 MB in the end (delta: 14.5 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. * Witness Printer took 58.96 ms. Allocated memory is still 94.4 MB. Free memory was 46.9 MB in the beginning and 71.9 MB in the end (delta: -25.0 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 0 <= i + 2147483648 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (0 <= j && 0 <= i + 2147483648) && i <= 4 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.6s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 32 SDtfs, 26 SDslu, 8 SDs, 0 SdLazy, 37 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 18 HoareAnnotationTreeSize, 3 FomulaSimplifications, 48 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 210 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 2/2 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...