./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6dbc1a6a-04c2-4560-9f22-ecff9a2f7ca7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6dbc1a6a-04c2-4560-9f22-ecff9a2f7ca7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6dbc1a6a-04c2-4560-9f22-ecff9a2f7ca7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6dbc1a6a-04c2-4560-9f22-ecff9a2f7ca7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6dbc1a6a-04c2-4560-9f22-ecff9a2f7ca7/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6dbc1a6a-04c2-4560-9f22-ecff9a2f7ca7/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 0a8f096dedbbe798ef2fe808d4231fc7a503c17f ..................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 16:24:06,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:24:06,823 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:24:06,831 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:24:06,831 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:24:06,832 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:24:06,833 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:24:06,834 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:24:06,835 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:24:06,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:24:06,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:24:06,837 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:24:06,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:24:06,838 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:24:06,839 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:24:06,840 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:24:06,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:24:06,841 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:24:06,842 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:24:06,844 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:24:06,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:24:06,846 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:24:06,847 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:24:06,847 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:24:06,849 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:24:06,849 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:24:06,850 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:24:06,850 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:24:06,850 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:24:06,851 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:24:06,851 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:24:06,851 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:24:06,852 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:24:06,853 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:24:06,853 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:24:06,854 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:24:06,854 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:24:06,854 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:24:06,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:24:06,855 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:24:06,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:24:06,856 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6dbc1a6a-04c2-4560-9f22-ecff9a2f7ca7/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-12-07 16:24:06,869 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:24:06,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:24:06,870 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 16:24:06,870 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 16:24:06,870 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 16:24:06,870 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:24:06,871 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 16:24:06,871 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:24:06,871 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:24:06,871 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 16:24:06,871 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:24:06,872 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 16:24:06,872 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-12-07 16:24:06,872 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:24:06,872 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:24:06,872 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 16:24:06,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:24:06,873 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:24:06,873 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:24:06,873 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:24:06,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:24:06,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:24:06,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:24:06,874 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 16:24:06,874 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 16:24:06,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 16:24:06,874 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 16:24:06,874 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:24:06,875 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6dbc1a6a-04c2-4560-9f22-ecff9a2f7ca7/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 -> 0a8f096dedbbe798ef2fe808d4231fc7a503c17f [2019-12-07 16:24:06,979 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:24:06,989 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:24:06,992 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:24:06,993 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:24:06,994 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:24:06,994 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6dbc1a6a-04c2-4560-9f22-ecff9a2f7ca7/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.c [2019-12-07 16:24:07,036 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6dbc1a6a-04c2-4560-9f22-ecff9a2f7ca7/bin/uautomizer/data/b21842690/5178dd735bf34f0ea6ecf09f38165c1b/FLAG0d3a1cb82 [2019-12-07 16:24:07,338 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:24:07,338 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6dbc1a6a-04c2-4560-9f22-ecff9a2f7ca7/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.c [2019-12-07 16:24:07,342 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6dbc1a6a-04c2-4560-9f22-ecff9a2f7ca7/bin/uautomizer/data/b21842690/5178dd735bf34f0ea6ecf09f38165c1b/FLAG0d3a1cb82 [2019-12-07 16:24:07,351 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6dbc1a6a-04c2-4560-9f22-ecff9a2f7ca7/bin/uautomizer/data/b21842690/5178dd735bf34f0ea6ecf09f38165c1b [2019-12-07 16:24:07,353 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:24:07,353 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:24:07,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:24:07,354 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:24:07,356 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:24:07,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:24:07" (1/1) ... [2019-12-07 16:24:07,359 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52bdc395 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:24:07, skipping insertion in model container [2019-12-07 16:24:07,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:24:07" (1/1) ... [2019-12-07 16:24:07,365 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:24:07,377 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:24:07,472 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:24:07,475 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:24:07,515 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:24:07,524 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:24:07,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:24:07 WrapperNode [2019-12-07 16:24:07,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:24:07,525 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:24:07,525 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:24:07,525 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:24:07,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:24:07" (1/1) ... [2019-12-07 16:24:07,534 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:24:07" (1/1) ... [2019-12-07 16:24:07,545 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:24:07,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:24:07,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:24:07,545 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:24:07,551 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:24:07" (1/1) ... [2019-12-07 16:24:07,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:24:07" (1/1) ... [2019-12-07 16:24:07,552 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:24:07" (1/1) ... [2019-12-07 16:24:07,552 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:24:07" (1/1) ... [2019-12-07 16:24:07,553 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:24:07" (1/1) ... [2019-12-07 16:24:07,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:24:07" (1/1) ... [2019-12-07 16:24:07,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:24:07" (1/1) ... [2019-12-07 16:24:07,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:24:07,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:24:07,557 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:24:07,557 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:24:07,558 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:24:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6dbc1a6a-04c2-4560-9f22-ecff9a2f7ca7/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:24:07,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:24:07,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:24:07,695 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:24:07,695 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 16:24:07,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:24:07 BoogieIcfgContainer [2019-12-07 16:24:07,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:24:07,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 16:24:07,697 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 16:24:07,698 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 16:24:07,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 04:24:07" (1/3) ... [2019-12-07 16:24:07,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cd9fdcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:24:07, skipping insertion in model container [2019-12-07 16:24:07,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:24:07" (2/3) ... [2019-12-07 16:24:07,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cd9fdcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:24:07, skipping insertion in model container [2019-12-07 16:24:07,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:24:07" (3/3) ... [2019-12-07 16:24:07,701 INFO L109 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-cousot9.c [2019-12-07 16:24:07,707 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 16:24:07,711 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-12-07 16:24:07,718 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-07 16:24:07,732 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 16:24:07,732 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 16:24:07,732 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 16:24:07,733 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:24:07,733 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:24:07,733 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 16:24:07,733 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:24:07,733 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 16:24:07,742 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-12-07 16:24:07,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 16:24:07,745 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:24:07,746 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 16:24:07,746 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:24:07,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:24:07,750 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2019-12-07 16:24:07,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:24:07,755 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043813638] [2019-12-07 16:24:07,756 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:24:07,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:24:07,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:24:07,858 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043813638] [2019-12-07 16:24:07,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:24:07,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 16:24:07,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212283854] [2019-12-07 16:24:07,863 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 16:24:07,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:24:07,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:24:07,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:24:07,873 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2019-12-07 16:24:07,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:24:07,893 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2019-12-07 16:24:07,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:24:07,894 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-07 16:24:07,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:24:07,900 INFO L225 Difference]: With dead ends: 19 [2019-12-07 16:24:07,900 INFO L226 Difference]: Without dead ends: 10 [2019-12-07 16:24:07,902 INFO L630 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 [2019-12-07 16:24:07,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-12-07 16:24:07,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-12-07 16:24:07,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-12-07 16:24:07,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2019-12-07 16:24:07,922 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 4 [2019-12-07 16:24:07,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:24:07,922 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2019-12-07 16:24:07,922 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 16:24:07,922 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2019-12-07 16:24:07,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 16:24:07,923 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:24:07,923 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 16:24:07,923 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:24:07,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:24:07,923 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2019-12-07 16:24:07,924 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:24:07,924 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910547033] [2019-12-07 16:24:07,924 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:24:07,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:24:07,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:24:07,939 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910547033] [2019-12-07 16:24:07,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:24:07,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 16:24:07,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626099031] [2019-12-07 16:24:07,940 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 16:24:07,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:24:07,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:24:07,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:24:07,941 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 3 states. [2019-12-07 16:24:07,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:24:07,958 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2019-12-07 16:24:07,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:24:07,958 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-07 16:24:07,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:24:07,959 INFO L225 Difference]: With dead ends: 15 [2019-12-07 16:24:07,959 INFO L226 Difference]: Without dead ends: 14 [2019-12-07 16:24:07,960 INFO L630 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 [2019-12-07 16:24:07,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-12-07 16:24:07,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-12-07 16:24:07,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-12-07 16:24:07,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2019-12-07 16:24:07,963 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 17 transitions. Word has length 4 [2019-12-07 16:24:07,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:24:07,963 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 17 transitions. [2019-12-07 16:24:07,963 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 16:24:07,963 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2019-12-07 16:24:07,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 16:24:07,963 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:24:07,963 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 16:24:07,964 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:24:07,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:24:07,964 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2019-12-07 16:24:07,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:24:07,964 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605928870] [2019-12-07 16:24:07,964 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:24:07,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:24:07,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:24:07,979 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605928870] [2019-12-07 16:24:07,979 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:24:07,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 16:24:07,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768024644] [2019-12-07 16:24:07,980 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 16:24:07,980 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:24:07,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:24:07,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:24:07,980 INFO L87 Difference]: Start difference. First operand 14 states and 17 transitions. Second operand 3 states. [2019-12-07 16:24:07,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:24:07,988 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2019-12-07 16:24:07,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:24:07,989 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-07 16:24:07,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:24:07,989 INFO L225 Difference]: With dead ends: 16 [2019-12-07 16:24:07,989 INFO L226 Difference]: Without dead ends: 15 [2019-12-07 16:24:07,990 INFO L630 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 [2019-12-07 16:24:07,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-12-07 16:24:07,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2019-12-07 16:24:07,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-12-07 16:24:07,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2019-12-07 16:24:07,992 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 5 [2019-12-07 16:24:07,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:24:07,992 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2019-12-07 16:24:07,992 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 16:24:07,993 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2019-12-07 16:24:07,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 16:24:07,993 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:24:07,993 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 16:24:07,993 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:24:07,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:24:07,993 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2019-12-07 16:24:07,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:24:07,994 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468164688] [2019-12-07 16:24:07,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:24:07,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:24:08,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:24:08,007 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468164688] [2019-12-07 16:24:08,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:24:08,007 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 16:24:08,007 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218751927] [2019-12-07 16:24:08,008 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 16:24:08,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:24:08,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:24:08,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:24:08,008 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand 3 states. [2019-12-07 16:24:08,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:24:08,017 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2019-12-07 16:24:08,017 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:24:08,018 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-07 16:24:08,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:24:08,018 INFO L225 Difference]: With dead ends: 13 [2019-12-07 16:24:08,018 INFO L226 Difference]: Without dead ends: 12 [2019-12-07 16:24:08,018 INFO L630 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 [2019-12-07 16:24:08,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-07 16:24:08,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-07 16:24:08,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-07 16:24:08,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2019-12-07 16:24:08,021 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 5 [2019-12-07 16:24:08,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:24:08,021 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-12-07 16:24:08,021 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 16:24:08,021 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-12-07 16:24:08,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 16:24:08,021 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:24:08,021 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2019-12-07 16:24:08,022 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:24:08,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:24:08,022 INFO L82 PathProgramCache]: Analyzing trace with hash 784501120, now seen corresponding path program 1 times [2019-12-07 16:24:08,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:24:08,022 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760313749] [2019-12-07 16:24:08,022 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:24:08,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:24:08,061 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:24:08,061 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760313749] [2019-12-07 16:24:08,061 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77464097] [2019-12-07 16:24:08,061 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6dbc1a6a-04c2-4560-9f22-ecff9a2f7ca7/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 16:24:08,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:24:08,082 INFO L264 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 16:24:08,085 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:24:08,111 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:24:08,112 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 16:24:08,112 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 2] total 6 [2019-12-07 16:24:08,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586795403] [2019-12-07 16:24:08,112 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 16:24:08,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:24:08,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 16:24:08,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 16:24:08,113 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 8 states. [2019-12-07 16:24:08,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:24:08,165 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-12-07 16:24:08,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 16:24:08,165 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 8 [2019-12-07 16:24:08,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:24:08,165 INFO L225 Difference]: With dead ends: 14 [2019-12-07 16:24:08,165 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 16:24:08,166 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2019-12-07 16:24:08,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 16:24:08,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 16:24:08,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 16:24:08,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 16:24:08,166 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-12-07 16:24:08,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:24:08,167 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 16:24:08,167 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 16:24:08,167 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 16:24:08,167 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 16:24:08,367 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 16:24:08,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 16:24:08,421 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-12-07 16:24:08,421 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 16:24:08,421 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2019-12-07 16:24:08,422 INFO L246 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2019-12-07 16:24:08,422 INFO L246 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2019-12-07 16:24:08,422 INFO L246 CegarLoopResult]: For program point L19(lines 19 24) no Hoare annotation was computed. [2019-12-07 16:24:08,422 INFO L242 CegarLoopResult]: At program point L19-2(lines 18 25) the Hoare annotation is: (and (<= ULTIMATE.start_main_~j~0 2147483647) (<= ULTIMATE.start_main_~i~0 2147483647) (<= ULTIMATE.start_main_~N~0 2147483647)) [2019-12-07 16:24:08,423 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-12-07 16:24:08,423 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2019-12-07 16:24:08,423 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 16:24:08,423 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 16:24:08,423 INFO L242 CegarLoopResult]: At program point L26(lines 13 27) the Hoare annotation is: (<= ULTIMATE.start_main_~i~0 2147483647) [2019-12-07 16:24:08,423 INFO L246 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2019-12-07 16:24:08,423 INFO L246 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2019-12-07 16:24:08,424 INFO L246 CegarLoopResult]: For program point L18-2(lines 18 25) no Hoare annotation was computed. [2019-12-07 16:24:08,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 04:24:08 BoogieIcfgContainer [2019-12-07 16:24:08,437 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 16:24:08,438 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:24:08,438 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:24:08,438 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:24:08,438 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:24:07" (3/4) ... [2019-12-07 16:24:08,441 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 16:24:08,447 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 16:24:08,447 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 16:24:08,474 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6dbc1a6a-04c2-4560-9f22-ecff9a2f7ca7/bin/uautomizer/witness.graphml [2019-12-07 16:24:08,474 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:24:08,476 INFO L168 Benchmark]: Toolchain (without parser) took 1121.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 940.8 MB in the beginning and 1.0 GB in the end (delta: -102.9 MB). Peak memory consumption was 28.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:24:08,476 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 956.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:24:08,476 INFO L168 Benchmark]: CACSL2BoogieTranslator took 170.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -184.5 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-12-07 16:24:08,476 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:24:08,477 INFO L168 Benchmark]: Boogie Preprocessor took 11.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:24:08,477 INFO L168 Benchmark]: RCFGBuilder took 139.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-12-07 16:24:08,477 INFO L168 Benchmark]: TraceAbstraction took 740.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 64.0 MB). Peak memory consumption was 64.0 MB. Max. memory is 11.5 GB. [2019-12-07 16:24:08,478 INFO L168 Benchmark]: Witness Printer took 36.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. [2019-12-07 16:24:08,479 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 956.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 170.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -184.5 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 139.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 740.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 64.0 MB). Peak memory consumption was 64.0 MB. Max. memory is 11.5 GB. * Witness Printer took 36.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 23]: 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: 23]: 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: 13]: Loop Invariant Derived loop invariant: i <= 2147483647 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (j <= 2147483647 && i <= 2147483647) && N <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. Result: SAFE, OverallTime: 0.6s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 31 SDtfs, 35 SDslu, 7 SDs, 0 SdLazy, 48 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 13 HoareAnnotationTreeSize, 2 FomulaSimplifications, 37 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 448 SizeOfPredicates, 1 NumberOfNonLiveVariables, 23 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 0/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...