./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/Copenhagen.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/Copenhagen.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 9bcaeaea390de0d2b32b8c11c56b4b66e7b2005e ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 18:29:06,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:29:06,007 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:29:06,031 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:29:06,031 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:29:06,033 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:29:06,034 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:29:06,036 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:29:06,038 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:29:06,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:29:06,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:29:06,041 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:29:06,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:29:06,042 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:29:06,045 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:29:06,046 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:29:06,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:29:06,051 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:29:06,054 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:29:06,057 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:29:06,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:29:06,062 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:29:06,063 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:29:06,065 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:29:06,070 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:29:06,072 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:29:06,072 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:29:06,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:29:06,074 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:29:06,075 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:29:06,075 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:29:06,076 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:29:06,078 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:29:06,079 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:29:06,081 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:29:06,081 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:29:06,082 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:29:06,082 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:29:06,082 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:29:06,090 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:29:06,094 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:29:06,094 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-19 18:29:06,139 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:29:06,140 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:29:06,142 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:29:06,142 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:29:06,142 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:29:06,143 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:29:06,143 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:29:06,143 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:29:06,144 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:29:06,144 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 18:29:06,145 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:29:06,145 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 18:29:06,145 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-19 18:29:06,146 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 18:29:06,146 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:29:06,146 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 18:29:06,147 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:29:06,148 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:29:06,148 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:29:06,148 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:29:06,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:29:06,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:29:06,149 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:29:06,149 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 18:29:06,150 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:29:06,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 18:29:06,150 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 18:29:06,150 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:29:06,151 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 -> 9bcaeaea390de0d2b32b8c11c56b4b66e7b2005e [2020-10-19 18:29:06,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:29:06,466 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:29:06,469 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:29:06,471 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:29:06,471 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:29:06,472 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Copenhagen.c [2020-10-19 18:29:06,546 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b844de3ff/4aeb7e55f95b4fe088c2ff8adb3f25ef/FLAG5dfcfcc90 [2020-10-19 18:29:06,977 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:29:06,977 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Copenhagen.c [2020-10-19 18:29:06,983 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b844de3ff/4aeb7e55f95b4fe088c2ff8adb3f25ef/FLAG5dfcfcc90 [2020-10-19 18:29:07,380 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b844de3ff/4aeb7e55f95b4fe088c2ff8adb3f25ef [2020-10-19 18:29:07,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:29:07,390 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 18:29:07,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:29:07,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:29:07,395 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:29:07,396 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:29:07" (1/1) ... [2020-10-19 18:29:07,399 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a20320 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:07, skipping insertion in model container [2020-10-19 18:29:07,400 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:29:07" (1/1) ... [2020-10-19 18:29:07,409 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:29:07,426 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:29:07,595 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:29:07,599 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:29:07,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:29:07,630 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:29:07,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:07 WrapperNode [2020-10-19 18:29:07,631 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:29:07,632 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 18:29:07,632 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 18:29:07,632 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 18:29:07,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:07" (1/1) ... [2020-10-19 18:29:07,646 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:07" (1/1) ... [2020-10-19 18:29:07,665 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 18:29:07,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:29:07,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:29:07,666 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:29:07,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:07" (1/1) ... [2020-10-19 18:29:07,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:07" (1/1) ... [2020-10-19 18:29:07,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:07" (1/1) ... [2020-10-19 18:29:07,729 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:07" (1/1) ... [2020-10-19 18:29:07,732 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:07" (1/1) ... [2020-10-19 18:29:07,737 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:07" (1/1) ... [2020-10-19 18:29:07,738 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:07" (1/1) ... [2020-10-19 18:29:07,743 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:29:07,744 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:29:07,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:29:07,744 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:29:07,745 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:07" (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 18:29:07,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:29:07,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:29:07,988 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:29:07,989 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-19 18:29:07,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:29:07 BoogieIcfgContainer [2020-10-19 18:29:07,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:29:07,992 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:29:07,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:29:07,996 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:29:07,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:29:07" (1/3) ... [2020-10-19 18:29:07,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d5f425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:29:07, skipping insertion in model container [2020-10-19 18:29:07,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:07" (2/3) ... [2020-10-19 18:29:07,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d5f425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:29:07, skipping insertion in model container [2020-10-19 18:29:07,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:29:07" (3/3) ... [2020-10-19 18:29:08,000 INFO L111 eAbstractionObserver]: Analyzing ICFG Copenhagen.c [2020-10-19 18:29:08,012 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:29:08,020 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-10-19 18:29:08,035 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-19 18:29:08,058 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:29:08,059 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 18:29:08,059 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:29:08,059 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:29:08,060 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:29:08,060 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:29:08,060 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:29:08,060 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:29:08,076 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2020-10-19 18:29:08,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-19 18:29:08,082 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:29:08,083 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-19 18:29:08,084 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:29:08,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:29:08,090 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2020-10-19 18:29:08,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:29:08,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820829361] [2020-10-19 18:29:08,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:29:08,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:29:08,247 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 18:29:08,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820829361] [2020-10-19 18:29:08,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:29:08,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-19 18:29:08,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913083028] [2020-10-19 18:29:08,265 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 18:29:08,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:29:08,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:29:08,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:29:08,298 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 3 states. [2020-10-19 18:29:08,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:29:08,359 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2020-10-19 18:29:08,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:29:08,366 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-19 18:29:08,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:29:08,380 INFO L225 Difference]: With dead ends: 30 [2020-10-19 18:29:08,380 INFO L226 Difference]: Without dead ends: 17 [2020-10-19 18:29:08,383 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 18:29:08,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-10-19 18:29:08,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 12. [2020-10-19 18:29:08,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-19 18:29:08,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-10-19 18:29:08,420 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 3 [2020-10-19 18:29:08,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:29:08,421 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-10-19 18:29:08,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 18:29:08,421 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2020-10-19 18:29:08,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-19 18:29:08,422 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:29:08,422 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-19 18:29:08,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 18:29:08,423 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:29:08,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:29:08,423 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2020-10-19 18:29:08,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:29:08,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814791097] [2020-10-19 18:29:08,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:29:08,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:29:08,450 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 18:29:08,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814791097] [2020-10-19 18:29:08,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:29:08,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 18:29:08,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817348118] [2020-10-19 18:29:08,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 18:29:08,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:29:08,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:29:08,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:29:08,454 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 3 states. [2020-10-19 18:29:08,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:29:08,475 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2020-10-19 18:29:08,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:29:08,475 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-19 18:29:08,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:29:08,476 INFO L225 Difference]: With dead ends: 12 [2020-10-19 18:29:08,476 INFO L226 Difference]: Without dead ends: 11 [2020-10-19 18:29:08,477 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 18:29:08,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-10-19 18:29:08,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-10-19 18:29:08,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-19 18:29:08,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2020-10-19 18:29:08,483 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 4 [2020-10-19 18:29:08,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:29:08,483 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2020-10-19 18:29:08,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 18:29:08,484 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2020-10-19 18:29:08,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-19 18:29:08,484 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:29:08,485 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-19 18:29:08,485 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 18:29:08,485 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:29:08,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:29:08,486 INFO L82 PathProgramCache]: Analyzing trace with hash 29862563, now seen corresponding path program 1 times [2020-10-19 18:29:08,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:29:08,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234390086] [2020-10-19 18:29:08,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:29:08,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:29:08,529 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 18:29:08,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234390086] [2020-10-19 18:29:08,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:29:08,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 18:29:08,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213265477] [2020-10-19 18:29:08,531 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:29:08,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:29:08,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:29:08,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:29:08,533 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 4 states. [2020-10-19 18:29:08,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:29:08,575 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2020-10-19 18:29:08,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:29:08,576 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-10-19 18:29:08,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:29:08,576 INFO L225 Difference]: With dead ends: 16 [2020-10-19 18:29:08,577 INFO L226 Difference]: Without dead ends: 15 [2020-10-19 18:29:08,578 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:29:08,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-10-19 18:29:08,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2020-10-19 18:29:08,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-19 18:29:08,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2020-10-19 18:29:08,582 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 5 [2020-10-19 18:29:08,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:29:08,583 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-10-19 18:29:08,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:29:08,583 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-10-19 18:29:08,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-19 18:29:08,584 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:29:08,584 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-19 18:29:08,584 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 18:29:08,585 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:29:08,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:29:08,585 INFO L82 PathProgramCache]: Analyzing trace with hash 925739501, now seen corresponding path program 1 times [2020-10-19 18:29:08,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:29:08,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948569439] [2020-10-19 18:29:08,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:29:08,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:29:08,611 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 18:29:08,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948569439] [2020-10-19 18:29:08,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:29:08,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 18:29:08,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705284138] [2020-10-19 18:29:08,613 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 18:29:08,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:29:08,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:29:08,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:29:08,614 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 3 states. [2020-10-19 18:29:08,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:29:08,624 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2020-10-19 18:29:08,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:29:08,625 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-19 18:29:08,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:29:08,626 INFO L225 Difference]: With dead ends: 13 [2020-10-19 18:29:08,626 INFO L226 Difference]: Without dead ends: 12 [2020-10-19 18:29:08,627 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 18:29:08,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-10-19 18:29:08,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-10-19 18:29:08,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-19 18:29:08,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-10-19 18:29:08,631 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 6 [2020-10-19 18:29:08,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:29:08,631 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-10-19 18:29:08,631 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 18:29:08,632 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2020-10-19 18:29:08,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-19 18:29:08,632 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:29:08,633 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2020-10-19 18:29:08,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 18:29:08,633 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:29:08,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:29:08,634 INFO L82 PathProgramCache]: Analyzing trace with hash 577431471, now seen corresponding path program 1 times [2020-10-19 18:29:08,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:29:08,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134326912] [2020-10-19 18:29:08,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:29:08,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:29:08,670 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:29:08,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134326912] [2020-10-19 18:29:08,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:29:08,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:29:08,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401304839] [2020-10-19 18:29:08,672 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:29:08,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:29:08,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:29:08,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:29:08,673 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 4 states. [2020-10-19 18:29:08,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:29:08,706 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2020-10-19 18:29:08,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:29:08,707 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-10-19 18:29:08,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:29:08,708 INFO L225 Difference]: With dead ends: 12 [2020-10-19 18:29:08,708 INFO L226 Difference]: Without dead ends: 11 [2020-10-19 18:29:08,708 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:29:08,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-10-19 18:29:08,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-10-19 18:29:08,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-19 18:29:08,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2020-10-19 18:29:08,712 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2020-10-19 18:29:08,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:29:08,712 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2020-10-19 18:29:08,712 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:29:08,713 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2020-10-19 18:29:08,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-19 18:29:08,713 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:29:08,713 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2020-10-19 18:29:08,714 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-19 18:29:08,714 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:29:08,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:29:08,714 INFO L82 PathProgramCache]: Analyzing trace with hash 860863857, now seen corresponding path program 1 times [2020-10-19 18:29:08,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:29:08,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264859154] [2020-10-19 18:29:08,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:29:08,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:29:08,773 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:29:08,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264859154] [2020-10-19 18:29:08,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901572019] [2020-10-19 18:29:08,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 18:29:08,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:29:08,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 18:29:08,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:29:08,865 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:29:08,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:29:08,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2020-10-19 18:29:08,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743067648] [2020-10-19 18:29:08,866 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:29:08,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:29:08,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:29:08,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:29:08,867 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 5 states. [2020-10-19 18:29:08,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:29:08,938 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2020-10-19 18:29:08,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-19 18:29:08,938 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-19 18:29:08,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:29:08,939 INFO L225 Difference]: With dead ends: 17 [2020-10-19 18:29:08,939 INFO L226 Difference]: Without dead ends: 16 [2020-10-19 18:29:08,940 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-19 18:29:08,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-10-19 18:29:08,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-10-19 18:29:08,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-19 18:29:08,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-10-19 18:29:08,944 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 10 [2020-10-19 18:29:08,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:29:08,945 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-10-19 18:29:08,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:29:08,945 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-10-19 18:29:08,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-19 18:29:08,946 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:29:08,946 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1] [2020-10-19 18:29:09,157 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-10-19 18:29:09,158 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:29:09,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:29:09,159 INFO L82 PathProgramCache]: Analyzing trace with hash -846644381, now seen corresponding path program 2 times [2020-10-19 18:29:09,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:29:09,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48791913] [2020-10-19 18:29:09,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:29:09,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:29:09,235 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:29:09,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48791913] [2020-10-19 18:29:09,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283281342] [2020-10-19 18:29:09,236 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:29:09,287 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-19 18:29:09,287 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 18:29:09,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 18:29:09,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:29:09,340 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:29:09,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:29:09,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2020-10-19 18:29:09,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428262635] [2020-10-19 18:29:09,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-19 18:29:09,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:29:09,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 18:29:09,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-19 18:29:09,347 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 7 states. [2020-10-19 18:29:09,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:29:09,457 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2020-10-19 18:29:09,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-19 18:29:09,457 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-19 18:29:09,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:29:09,458 INFO L225 Difference]: With dead ends: 18 [2020-10-19 18:29:09,458 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 18:29:09,459 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-19 18:29:09,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 18:29:09,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 18:29:09,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 18:29:09,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 18:29:09,460 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-10-19 18:29:09,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:29:09,461 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:29:09,461 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-19 18:29:09,461 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 18:29:09,461 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 18:29:09,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:29:09,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 18:29:09,730 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2020-10-19 18:29:09,731 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 18:29:09,731 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2020-10-19 18:29:09,731 INFO L277 CegarLoopResult]: At program point L21(lines 11 22) the Hoare annotation is: true [2020-10-19 18:29:09,731 INFO L274 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-10-19 18:29:09,732 INFO L274 CegarLoopResult]: For program point L19-1(line 19) no Hoare annotation was computed. [2020-10-19 18:29:09,732 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2020-10-19 18:29:09,732 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2020-10-19 18:29:09,732 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 18:29:09,732 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 18:29:09,732 INFO L274 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-10-19 18:29:09,733 INFO L274 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-10-19 18:29:09,733 INFO L270 CegarLoopResult]: At program point L16-2(lines 16 20) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= ULTIMATE.start_main_~y~0 2147483647)) [2020-10-19 18:29:09,733 INFO L274 CegarLoopResult]: For program point L16-3(lines 16 20) no Hoare annotation was computed. [2020-10-19 18:29:09,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:29:09 BoogieIcfgContainer [2020-10-19 18:29:09,751 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:29:09,752 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:29:09,752 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:29:09,753 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:29:09,753 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:29:07" (3/4) ... [2020-10-19 18:29:09,757 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 18:29:09,769 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-10-19 18:29:09,770 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-19 18:29:09,813 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 18:29:09,814 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:29:09,816 INFO L168 Benchmark]: Toolchain (without parser) took 2430.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 960.0 MB in the beginning and 1.0 GB in the end (delta: -53.0 MB). Peak memory consumption was 92.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:29:09,817 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:29:09,818 INFO L168 Benchmark]: CACSL2BoogieTranslator took 240.51 ms. Allocated memory is still 1.0 GB. Free memory was 960.0 MB in the beginning and 949.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:29:09,818 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.13 ms. Allocated memory is still 1.0 GB. Free memory is still 949.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:29:09,819 INFO L168 Benchmark]: Boogie Preprocessor took 78.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -186.3 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2020-10-19 18:29:09,820 INFO L168 Benchmark]: RCFGBuilder took 247.49 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: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2020-10-19 18:29:09,821 INFO L168 Benchmark]: TraceAbstraction took 1759.11 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: 102.8 MB). Peak memory consumption was 102.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:29:09,822 INFO L168 Benchmark]: Witness Printer took 61.85 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2020-10-19 18:29:09,826 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 240.51 ms. Allocated memory is still 1.0 GB. Free memory was 960.0 MB in the beginning and 949.2 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 33.13 ms. Allocated memory is still 1.0 GB. Free memory is still 949.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 78.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -186.3 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 247.49 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: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1759.11 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: 102.8 MB). Peak memory consumption was 102.8 MB. Max. memory is 11.5 GB. * Witness Printer took 61.85 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: 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: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: 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: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: x <= 2147483647 && y <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.6s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 43 SDtfs, 46 SDslu, 15 SDs, 0 SdLazy, 113 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=6, 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, 7 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 8 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 55 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 67 ConstructedInterpolants, 0 QuantifiedInterpolants, 1899 SizeOfPredicates, 6 NumberOfNonLiveVariables, 74 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 10/36 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...