./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 41d35d9d9785c70c81ceac96efa22b5a4097e6f4 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:32:10,070 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:32:10,073 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:32:10,114 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:32:10,114 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:32:10,123 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:32:10,126 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:32:10,129 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:32:10,131 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:32:10,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:32:10,136 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:32:10,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:32:10,137 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:32:10,141 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:32:10,142 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:32:10,144 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:32:10,146 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:32:10,147 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:32:10,149 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:32:10,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:32:10,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:32:10,159 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:32:10,161 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:32:10,162 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:32:10,173 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:32:10,174 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:32:10,174 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:32:10,175 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:32:10,175 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:32:10,177 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:32:10,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:32:10,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:32:10,179 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:32:10,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:32:10,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:32:10,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:32:10,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:32:10,182 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:32:10,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:32:10,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:32:10,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:32:10,185 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-19 18:32:10,228 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:32:10,228 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:32:10,230 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:32:10,230 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:32:10,230 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:32:10,231 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:32:10,231 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:32:10,231 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:32:10,231 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:32:10,231 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 18:32:10,233 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:32:10,233 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 18:32:10,233 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-19 18:32:10,234 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 18:32:10,234 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:32:10,234 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 18:32:10,234 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:32:10,234 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:32:10,235 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:32:10,235 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:32:10,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:32:10,235 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:32:10,235 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:32:10,236 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 18:32:10,236 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:32:10,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 18:32:10,236 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 18:32:10,236 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:32:10,237 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 41d35d9d9785c70c81ceac96efa22b5a4097e6f4 [2020-10-19 18:32:10,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:32:10,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:32:10,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:32:10,572 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:32:10,573 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:32:10,573 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b.c [2020-10-19 18:32:10,626 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46668e8d5/1a80f7695bde4fb1b3b4a63b98a464db/FLAG4c0084950 [2020-10-19 18:32:11,067 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:32:11,068 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b.c [2020-10-19 18:32:11,075 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46668e8d5/1a80f7695bde4fb1b3b4a63b98a464db/FLAG4c0084950 [2020-10-19 18:32:11,458 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46668e8d5/1a80f7695bde4fb1b3b4a63b98a464db [2020-10-19 18:32:11,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:32:11,468 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 18:32:11,469 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:32:11,469 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:32:11,473 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:32:11,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:32:11" (1/1) ... [2020-10-19 18:32:11,476 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1586832b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:32:11, skipping insertion in model container [2020-10-19 18:32:11,476 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:32:11" (1/1) ... [2020-10-19 18:32:11,484 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:32:11,504 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:32:11,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:32:11,727 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:32:11,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:32:11,754 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:32:11,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:32:11 WrapperNode [2020-10-19 18:32:11,754 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:32:11,755 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 18:32:11,755 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 18:32:11,755 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 18:32:11,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:32:11" (1/1) ... [2020-10-19 18:32:11,766 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:32:11" (1/1) ... [2020-10-19 18:32:11,834 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 18:32:11,835 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:32:11,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:32:11,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:32:11,844 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:32:11" (1/1) ... [2020-10-19 18:32:11,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:32:11" (1/1) ... [2020-10-19 18:32:11,846 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:32:11" (1/1) ... [2020-10-19 18:32:11,846 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:32:11" (1/1) ... [2020-10-19 18:32:11,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:32:11" (1/1) ... [2020-10-19 18:32:11,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:32:11" (1/1) ... [2020-10-19 18:32:11,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:32:11" (1/1) ... [2020-10-19 18:32:11,855 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:32:11,855 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:32:11,856 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:32:11,856 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:32:11,856 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:32:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 18:32:11,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:32:11,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:32:12,105 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:32:12,106 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-19 18:32:12,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:32:12 BoogieIcfgContainer [2020-10-19 18:32:12,108 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:32:12,109 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:32:12,109 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:32:12,112 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:32:12,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:32:11" (1/3) ... [2020-10-19 18:32:12,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3029b3d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:32:12, skipping insertion in model container [2020-10-19 18:32:12,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:32:11" (2/3) ... [2020-10-19 18:32:12,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3029b3d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:32:12, skipping insertion in model container [2020-10-19 18:32:12,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:32:12" (3/3) ... [2020-10-19 18:32:12,116 INFO L111 eAbstractionObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig7b.c [2020-10-19 18:32:12,127 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:32:12,134 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-10-19 18:32:12,147 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-19 18:32:12,167 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:32:12,167 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 18:32:12,167 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:32:12,168 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:32:12,168 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:32:12,168 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:32:12,168 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:32:12,168 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:32:12,184 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-10-19 18:32:12,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-19 18:32:12,189 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:32:12,190 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-19 18:32:12,191 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:32:12,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:32:12,196 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2020-10-19 18:32:12,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:32:12,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495459214] [2020-10-19 18:32:12,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:32:12,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:32:12,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:32:12,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495459214] [2020-10-19 18:32:12,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:32:12,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-19 18:32:12,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373301240] [2020-10-19 18:32:12,359 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 18:32:12,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:32:12,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:32:12,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:32:12,378 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2020-10-19 18:32:12,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:32:12,477 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2020-10-19 18:32:12,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:32:12,480 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-19 18:32:12,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:32:12,491 INFO L225 Difference]: With dead ends: 24 [2020-10-19 18:32:12,491 INFO L226 Difference]: Without dead ends: 15 [2020-10-19 18:32:12,494 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 [2020-10-19 18:32:12,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-10-19 18:32:12,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-10-19 18:32:12,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-10-19 18:32:12,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2020-10-19 18:32:12,527 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 4 [2020-10-19 18:32:12,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:32:12,527 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2020-10-19 18:32:12,527 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 18:32:12,528 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2020-10-19 18:32:12,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-19 18:32:12,529 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:32:12,529 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-19 18:32:12,529 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 18:32:12,530 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:32:12,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:32:12,530 INFO L82 PathProgramCache]: Analyzing trace with hash 29869546, now seen corresponding path program 1 times [2020-10-19 18:32:12,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:32:12,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99984947] [2020-10-19 18:32:12,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:32:12,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:32:12,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:32:12,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99984947] [2020-10-19 18:32:12,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:32:12,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-19 18:32:12,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733107671] [2020-10-19 18:32:12,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 18:32:12,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:32:12,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:32:12,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:32:12,565 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 3 states. [2020-10-19 18:32:12,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:32:12,579 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2020-10-19 18:32:12,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:32:12,581 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-19 18:32:12,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:32:12,581 INFO L225 Difference]: With dead ends: 15 [2020-10-19 18:32:12,581 INFO L226 Difference]: Without dead ends: 14 [2020-10-19 18:32:12,582 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 [2020-10-19 18:32:12,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-10-19 18:32:12,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-10-19 18:32:12,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-10-19 18:32:12,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2020-10-19 18:32:12,587 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 5 [2020-10-19 18:32:12,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:32:12,588 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2020-10-19 18:32:12,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 18:32:12,588 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-10-19 18:32:12,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-19 18:32:12,589 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:32:12,589 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-19 18:32:12,590 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 18:32:12,590 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:32:12,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:32:12,591 INFO L82 PathProgramCache]: Analyzing trace with hash 29869738, now seen corresponding path program 1 times [2020-10-19 18:32:12,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:32:12,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153558129] [2020-10-19 18:32:12,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:32:12,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:32:12,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:32:12,636 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153558129] [2020-10-19 18:32:12,636 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:32:12,636 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-19 18:32:12,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595077394] [2020-10-19 18:32:12,637 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 18:32:12,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:32:12,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:32:12,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:32:12,638 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 3 states. [2020-10-19 18:32:12,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:32:12,653 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2020-10-19 18:32:12,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:32:12,654 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-19 18:32:12,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:32:12,655 INFO L225 Difference]: With dead ends: 14 [2020-10-19 18:32:12,655 INFO L226 Difference]: Without dead ends: 13 [2020-10-19 18:32:12,655 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 [2020-10-19 18:32:12,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-10-19 18:32:12,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-10-19 18:32:12,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-19 18:32:12,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2020-10-19 18:32:12,660 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 5 [2020-10-19 18:32:12,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:32:12,660 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2020-10-19 18:32:12,660 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 18:32:12,661 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2020-10-19 18:32:12,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-19 18:32:12,661 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:32:12,661 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-19 18:32:12,662 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 18:32:12,662 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:32:12,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:32:12,663 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2020-10-19 18:32:12,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:32:12,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261117638] [2020-10-19 18:32:12,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:32:12,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:32:12,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:32:12,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261117638] [2020-10-19 18:32:12,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:32:12,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 18:32:12,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122319425] [2020-10-19 18:32:12,692 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 18:32:12,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:32:12,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:32:12,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:32:12,693 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 3 states. [2020-10-19 18:32:12,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:32:12,708 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2020-10-19 18:32:12,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:32:12,709 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-19 18:32:12,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:32:12,710 INFO L225 Difference]: With dead ends: 14 [2020-10-19 18:32:12,710 INFO L226 Difference]: Without dead ends: 13 [2020-10-19 18:32:12,711 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 [2020-10-19 18:32:12,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-10-19 18:32:12,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2020-10-19 18:32:12,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-19 18:32:12,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2020-10-19 18:32:12,715 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 5 [2020-10-19 18:32:12,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:32:12,715 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2020-10-19 18:32:12,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 18:32:12,716 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-10-19 18:32:12,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-19 18:32:12,716 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:32:12,717 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-19 18:32:12,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 18:32:12,717 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:32:12,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:32:12,718 INFO L82 PathProgramCache]: Analyzing trace with hash 925955982, now seen corresponding path program 1 times [2020-10-19 18:32:12,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:32:12,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043274212] [2020-10-19 18:32:12,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:32:12,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:32:12,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:32:12,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043274212] [2020-10-19 18:32:12,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:32:12,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 18:32:12,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262378741] [2020-10-19 18:32:12,749 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 18:32:12,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:32:12,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:32:12,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:32:12,750 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 3 states. [2020-10-19 18:32:12,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:32:12,768 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2020-10-19 18:32:12,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:32:12,769 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-19 18:32:12,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:32:12,769 INFO L225 Difference]: With dead ends: 13 [2020-10-19 18:32:12,770 INFO L226 Difference]: Without dead ends: 12 [2020-10-19 18:32:12,770 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 [2020-10-19 18:32:12,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-10-19 18:32:12,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2020-10-19 18:32:12,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-19 18:32:12,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-10-19 18:32:12,774 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 6 [2020-10-19 18:32:12,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:32:12,774 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-10-19 18:32:12,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 18:32:12,774 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-10-19 18:32:12,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-19 18:32:12,775 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:32:12,775 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-19 18:32:12,775 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-19 18:32:12,776 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:32:12,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:32:12,776 INFO L82 PathProgramCache]: Analyzing trace with hash 925961940, now seen corresponding path program 1 times [2020-10-19 18:32:12,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:32:12,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253499293] [2020-10-19 18:32:12,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:32:12,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:32:12,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:32:12,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253499293] [2020-10-19 18:32:12,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:32:12,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 18:32:12,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795375360] [2020-10-19 18:32:12,803 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 18:32:12,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:32:12,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:32:12,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:32:12,804 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand 3 states. [2020-10-19 18:32:12,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:32:12,817 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2020-10-19 18:32:12,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:32:12,818 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-19 18:32:12,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:32:12,818 INFO L225 Difference]: With dead ends: 12 [2020-10-19 18:32:12,818 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 18:32:12,819 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 [2020-10-19 18:32:12,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 18:32:12,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 18:32:12,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 18:32:12,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 18:32:12,820 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2020-10-19 18:32:12,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:32:12,820 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:32:12,820 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 18:32:12,821 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 18:32:12,821 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 18:32:12,821 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-19 18:32:12,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 18:32:12,884 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2020-10-19 18:32:12,884 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 18:32:12,884 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2020-10-19 18:32:12,885 INFO L270 CegarLoopResult]: At program point L31(lines 15 32) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2020-10-19 18:32:12,885 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2020-10-19 18:32:12,885 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-19 18:32:12,885 INFO L274 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed. [2020-10-19 18:32:12,886 INFO L274 CegarLoopResult]: For program point L23(lines 23 29) no Hoare annotation was computed. [2020-10-19 18:32:12,886 INFO L274 CegarLoopResult]: For program point L21(lines 21 29) no Hoare annotation was computed. [2020-10-19 18:32:12,886 INFO L270 CegarLoopResult]: At program point L23-2(lines 20 30) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= ULTIMATE.start_main_~z~0 2147483647) (<= ULTIMATE.start_main_~y~0 2147483647)) [2020-10-19 18:32:12,886 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2020-10-19 18:32:12,887 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2020-10-19 18:32:12,887 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 18:32:12,887 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2020-10-19 18:32:12,887 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 18:32:12,887 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-19 18:32:12,887 INFO L274 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-10-19 18:32:12,888 INFO L274 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-10-19 18:32:12,888 INFO L274 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2020-10-19 18:32:12,888 INFO L274 CegarLoopResult]: For program point L20-2(lines 20 30) no Hoare annotation was computed. [2020-10-19 18:32:12,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:32:12 BoogieIcfgContainer [2020-10-19 18:32:12,907 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:32:12,907 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:32:12,907 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:32:12,908 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:32:12,908 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:32:12" (3/4) ... [2020-10-19 18:32:12,912 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 18:32:12,924 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-10-19 18:32:12,924 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-19 18:32:12,977 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 18:32:12,977 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:32:12,980 INFO L168 Benchmark]: Toolchain (without parser) took 1516.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -103.3 MB). Peak memory consumption was 36.1 MB. Max. memory is 11.5 GB. [2020-10-19 18:32:12,980 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:32:12,981 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.59 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 943.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:32:12,981 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 943.9 MB in the beginning and 1.1 GB in the end (delta: -192.0 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:32:12,982 INFO L168 Benchmark]: Boogie Preprocessor took 20.23 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. [2020-10-19 18:32:12,982 INFO L168 Benchmark]: RCFGBuilder took 252.41 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: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. [2020-10-19 18:32:12,983 INFO L168 Benchmark]: TraceAbstraction took 797.93 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: 52.4 MB). Peak memory consumption was 52.4 MB. Max. memory is 11.5 GB. [2020-10-19 18:32:12,984 INFO L168 Benchmark]: Witness Printer took 69.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2020-10-19 18:32:12,987 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 285.59 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 943.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 79.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 943.9 MB in the beginning and 1.1 GB in the end (delta: -192.0 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.23 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 252.41 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: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 797.93 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: 52.4 MB). Peak memory consumption was 52.4 MB. Max. memory is 11.5 GB. * Witness Printer took 69.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: 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: 24]: 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 - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: x <= 2147483647 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (x <= 2147483647 && z <= 2147483647) && y <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 72 SDtfs, 56 SDslu, 0 SDs, 0 SdLazy, 30 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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, 6 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 13 HoareAnnotationTreeSize, 2 FomulaSimplifications, 84 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 14 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 293 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...