./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-zilu/benchmark34_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/loop-zilu/benchmark34_conjunctive.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-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 32bit --witnessprinter.graph.data.programhash 0414607cdfaf86248673acc731020b311087823754eb03e229e19e48245fa120 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-19 15:27:23,010 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-19 15:27:23,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-19 15:27:23,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-19 15:27:23,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-19 15:27:23,070 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-19 15:27:23,071 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-19 15:27:23,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-19 15:27:23,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-19 15:27:23,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-19 15:27:23,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-19 15:27:23,081 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-19 15:27:23,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-19 15:27:23,084 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-19 15:27:23,086 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-19 15:27:23,091 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-19 15:27:23,092 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-19 15:27:23,093 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-19 15:27:23,095 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-19 15:27:23,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-19 15:27:23,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-19 15:27:23,102 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-19 15:27:23,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-19 15:27:23,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-19 15:27:23,110 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-19 15:27:23,111 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-19 15:27:23,111 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-19 15:27:23,113 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-19 15:27:23,113 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-19 15:27:23,114 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-19 15:27:23,114 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-19 15:27:23,115 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-19 15:27:23,116 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-19 15:27:23,117 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-19 15:27:23,119 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-19 15:27:23,119 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-19 15:27:23,120 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-19 15:27:23,120 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-19 15:27:23,121 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-19 15:27:23,121 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-19 15:27:23,122 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-19 15:27:23,124 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-12-19 15:27:23,154 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-19 15:27:23,155 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-19 15:27:23,155 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-19 15:27:23,156 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-19 15:27:23,157 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-19 15:27:23,157 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-19 15:27:23,157 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-19 15:27:23,158 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-19 15:27:23,158 INFO L138 SettingsManager]: * Use SBE=true [2021-12-19 15:27:23,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-19 15:27:23,159 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-19 15:27:23,159 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-19 15:27:23,159 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-19 15:27:23,159 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-19 15:27:23,160 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-19 15:27:23,160 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-19 15:27:23,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-19 15:27:23,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-19 15:27:23,160 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-19 15:27:23,161 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-19 15:27:23,161 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-19 15:27:23,161 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-19 15:27:23,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-19 15:27:23,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-19 15:27:23,162 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-19 15:27:23,162 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-19 15:27:23,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-19 15:27:23,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-19 15:27:23,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-19 15:27:23,163 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-19 15:27:23,163 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-19 15:27:23,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-19 15:27:23,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-19 15:27:23,163 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-19 15:27:23,164 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0414607cdfaf86248673acc731020b311087823754eb03e229e19e48245fa120 [2021-12-19 15:27:23,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-19 15:27:23,421 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-19 15:27:23,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-19 15:27:23,424 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-19 15:27:23,424 INFO L275 PluginConnector]: CDTParser initialized [2021-12-19 15:27:23,425 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark34_conjunctive.i [2021-12-19 15:27:23,483 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a3a96315/6516f2be6dfc4a88904f294750049991/FLAGc9aabd78f [2021-12-19 15:27:23,815 INFO L306 CDTParser]: Found 1 translation units. [2021-12-19 15:27:23,815 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark34_conjunctive.i [2021-12-19 15:27:23,820 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a3a96315/6516f2be6dfc4a88904f294750049991/FLAGc9aabd78f [2021-12-19 15:27:24,252 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a3a96315/6516f2be6dfc4a88904f294750049991 [2021-12-19 15:27:24,254 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-19 15:27:24,255 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-19 15:27:24,258 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-19 15:27:24,259 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-19 15:27:24,261 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-19 15:27:24,262 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:27:24" (1/1) ... [2021-12-19 15:27:24,263 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ae4eb95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:27:24, skipping insertion in model container [2021-12-19 15:27:24,263 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:27:24" (1/1) ... [2021-12-19 15:27:24,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-19 15:27:24,278 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-19 15:27:24,419 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark34_conjunctive.i[873,886] [2021-12-19 15:27:24,433 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 15:27:24,439 INFO L203 MainTranslator]: Completed pre-run [2021-12-19 15:27:24,451 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark34_conjunctive.i[873,886] [2021-12-19 15:27:24,457 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 15:27:24,465 INFO L208 MainTranslator]: Completed translation [2021-12-19 15:27:24,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:27:24 WrapperNode [2021-12-19 15:27:24,466 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-19 15:27:24,466 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-19 15:27:24,466 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-19 15:27:24,467 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-19 15:27:24,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:27:24" (1/1) ... [2021-12-19 15:27:24,480 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:27:24" (1/1) ... [2021-12-19 15:27:24,502 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 41 [2021-12-19 15:27:24,503 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-19 15:27:24,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-19 15:27:24,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-19 15:27:24,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-19 15:27:24,510 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:27:24" (1/1) ... [2021-12-19 15:27:24,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:27:24" (1/1) ... [2021-12-19 15:27:24,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:27:24" (1/1) ... [2021-12-19 15:27:24,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:27:24" (1/1) ... [2021-12-19 15:27:24,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:27:24" (1/1) ... [2021-12-19 15:27:24,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:27:24" (1/1) ... [2021-12-19 15:27:24,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:27:24" (1/1) ... [2021-12-19 15:27:24,530 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-19 15:27:24,531 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-19 15:27:24,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-19 15:27:24,531 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-19 15:27:24,532 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:27:24" (1/1) ... [2021-12-19 15:27:24,543 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-19 15:27:24,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:27:24,563 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-19 15:27:24,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-19 15:27:24,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-19 15:27:24,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-19 15:27:24,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-19 15:27:24,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-19 15:27:24,640 INFO L236 CfgBuilder]: Building ICFG [2021-12-19 15:27:24,641 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-19 15:27:24,725 INFO L277 CfgBuilder]: Performing block encoding [2021-12-19 15:27:24,730 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-19 15:27:24,730 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-19 15:27:24,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:27:24 BoogieIcfgContainer [2021-12-19 15:27:24,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-19 15:27:24,733 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-19 15:27:24,733 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-19 15:27:24,736 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-19 15:27:24,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 03:27:24" (1/3) ... [2021-12-19 15:27:24,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ec711a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:27:24, skipping insertion in model container [2021-12-19 15:27:24,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:27:24" (2/3) ... [2021-12-19 15:27:24,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ec711a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:27:24, skipping insertion in model container [2021-12-19 15:27:24,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:27:24" (3/3) ... [2021-12-19 15:27:24,741 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark34_conjunctive.i [2021-12-19 15:27:24,745 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-19 15:27:24,748 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-12-19 15:27:24,786 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-19 15:27:24,792 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-19 15:27:24,792 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-12-19 15:27:24,804 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:27:24,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-12-19 15:27:24,808 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:27:24,809 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-12-19 15:27:24,809 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-12-19 15:27:24,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:27:24,814 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2021-12-19 15:27:24,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:27:24,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602934763] [2021-12-19 15:27:24,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:27:24,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:27:24,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:27:24,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:27:24,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:27:24,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602934763] [2021-12-19 15:27:24,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602934763] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:27:24,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:27:24,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 15:27:24,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288523962] [2021-12-19 15:27:24,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:27:24,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 15:27:24,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:27:25,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 15:27:25,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 15:27:25,015 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:27:25,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:27:25,053 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2021-12-19 15:27:25,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-19 15:27:25,055 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-12-19 15:27:25,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:27:25,077 INFO L225 Difference]: With dead ends: 35 [2021-12-19 15:27:25,077 INFO L226 Difference]: Without dead ends: 16 [2021-12-19 15:27:25,080 INFO L932 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 [2021-12-19 15:27:25,083 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 11 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:27:25,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 43 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:27:25,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-12-19 15:27:25,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 14. [2021-12-19 15:27:25,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:27:25,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-12-19 15:27:25,128 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 5 [2021-12-19 15:27:25,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:27:25,129 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-12-19 15:27:25,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:27:25,129 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-12-19 15:27:25,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-19 15:27:25,130 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:27:25,130 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-19 15:27:25,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-19 15:27:25,132 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-12-19 15:27:25,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:27:25,134 INFO L85 PathProgramCache]: Analyzing trace with hash 889575213, now seen corresponding path program 1 times [2021-12-19 15:27:25,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:27:25,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483074811] [2021-12-19 15:27:25,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:27:25,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:27:25,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:27:25,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:27:25,199 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:27:25,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483074811] [2021-12-19 15:27:25,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483074811] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:27:25,200 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:27:25,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 15:27:25,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490408533] [2021-12-19 15:27:25,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:27:25,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 15:27:25,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:27:25,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 15:27:25,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 15:27:25,205 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:27:25,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:27:25,225 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2021-12-19 15:27:25,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-19 15:27:25,226 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-12-19 15:27:25,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:27:25,227 INFO L225 Difference]: With dead ends: 14 [2021-12-19 15:27:25,227 INFO L226 Difference]: Without dead ends: 13 [2021-12-19 15:27:25,231 INFO L932 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 [2021-12-19 15:27:25,233 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 8 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:27:25,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 14 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:27:25,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-12-19 15:27:25,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-12-19 15:27:25,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.3) internal successors, (13), 12 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:27:25,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-12-19 15:27:25,240 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 6 [2021-12-19 15:27:25,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:27:25,241 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-12-19 15:27:25,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:27:25,242 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-12-19 15:27:25,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-19 15:27:25,243 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:27:25,243 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:27:25,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-19 15:27:25,245 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-12-19 15:27:25,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:27:25,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2021-12-19 15:27:25,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:27:25,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728440005] [2021-12-19 15:27:25,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:27:25,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:27:25,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:27:25,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:27:25,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:27:25,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728440005] [2021-12-19 15:27:25,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728440005] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:27:25,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:27:25,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 15:27:25,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688098485] [2021-12-19 15:27:25,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:27:25,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 15:27:25,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:27:25,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 15:27:25,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 15:27:25,296 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:27:25,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:27:25,322 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2021-12-19 15:27:25,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-19 15:27:25,323 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-12-19 15:27:25,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:27:25,324 INFO L225 Difference]: With dead ends: 13 [2021-12-19 15:27:25,324 INFO L226 Difference]: Without dead ends: 12 [2021-12-19 15:27:25,324 INFO L932 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 [2021-12-19 15:27:25,330 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 6 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:27:25,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 10 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:27:25,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-12-19 15:27:25,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-12-19 15:27:25,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:27:25,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2021-12-19 15:27:25,338 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 7 [2021-12-19 15:27:25,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:27:25,338 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2021-12-19 15:27:25,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:27:25,338 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2021-12-19 15:27:25,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-19 15:27:25,339 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:27:25,339 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:27:25,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-19 15:27:25,340 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-12-19 15:27:25,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:27:25,341 INFO L85 PathProgramCache]: Analyzing trace with hash 183289455, now seen corresponding path program 1 times [2021-12-19 15:27:25,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:27:25,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192304175] [2021-12-19 15:27:25,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:27:25,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:27:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:27:25,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:27:25,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:27:25,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192304175] [2021-12-19 15:27:25,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192304175] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:27:25,395 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:27:25,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 15:27:25,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650123075] [2021-12-19 15:27:25,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:27:25,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 15:27:25,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:27:25,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 15:27:25,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 15:27:25,398 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:27:25,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:27:25,435 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2021-12-19 15:27:25,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-19 15:27:25,436 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-12-19 15:27:25,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:27:25,437 INFO L225 Difference]: With dead ends: 16 [2021-12-19 15:27:25,437 INFO L226 Difference]: Without dead ends: 15 [2021-12-19 15:27:25,437 INFO L932 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 [2021-12-19 15:27:25,438 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 2 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:27:25,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 18 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:27:25,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-12-19 15:27:25,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-12-19 15:27:25,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:27:25,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-12-19 15:27:25,442 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2021-12-19 15:27:25,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:27:25,443 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-12-19 15:27:25,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:27:25,443 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-12-19 15:27:25,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-19 15:27:25,443 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:27:25,443 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:27:25,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-19 15:27:25,444 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-12-19 15:27:25,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:27:25,444 INFO L85 PathProgramCache]: Analyzing trace with hash 47508593, now seen corresponding path program 1 times [2021-12-19 15:27:25,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:27:25,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352286385] [2021-12-19 15:27:25,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:27:25,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:27:25,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:27:25,502 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:27:25,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:27:25,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352286385] [2021-12-19 15:27:25,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352286385] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:27:25,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947525522] [2021-12-19 15:27:25,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:27:25,510 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:27:25,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:27:25,511 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:27:25,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-19 15:27:25,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:27:25,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-19 15:27:25,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:27:25,651 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:27:25,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:27:25,698 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:27:25,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [947525522] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:27:25,699 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:27:25,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2021-12-19 15:27:25,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137788789] [2021-12-19 15:27:25,700 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:27:25,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-19 15:27:25,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:27:25,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-19 15:27:25,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-12-19 15:27:25,701 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:27:25,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:27:25,755 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2021-12-19 15:27:25,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-19 15:27:25,756 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-12-19 15:27:25,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:27:25,756 INFO L225 Difference]: With dead ends: 31 [2021-12-19 15:27:25,757 INFO L226 Difference]: Without dead ends: 30 [2021-12-19 15:27:25,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-12-19 15:27:25,758 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 24 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:27:25,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 38 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:27:25,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-12-19 15:27:25,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2021-12-19 15:27:25,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 25 states have (on average 1.16) internal successors, (29), 26 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:27:25,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2021-12-19 15:27:25,763 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 10 [2021-12-19 15:27:25,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:27:25,763 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2021-12-19 15:27:25,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:27:25,763 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2021-12-19 15:27:25,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-19 15:27:25,764 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:27:25,764 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-12-19 15:27:25,789 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-19 15:27:25,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:27:25,987 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-12-19 15:27:25,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:27:25,988 INFO L85 PathProgramCache]: Analyzing trace with hash -2010663901, now seen corresponding path program 1 times [2021-12-19 15:27:25,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:27:25,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504735082] [2021-12-19 15:27:25,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:27:25,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:27:25,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:27:26,035 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:27:26,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:27:26,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504735082] [2021-12-19 15:27:26,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504735082] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:27:26,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491574253] [2021-12-19 15:27:26,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:27:26,036 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:27:26,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:27:26,038 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:27:26,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-19 15:27:26,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:27:26,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-19 15:27:26,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:27:26,194 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:27:26,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:27:26,353 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:27:26,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491574253] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:27:26,354 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:27:26,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 15 [2021-12-19 15:27:26,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915077183] [2021-12-19 15:27:26,354 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:27:26,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-19 15:27:26,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:27:26,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-19 15:27:26,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2021-12-19 15:27:26,356 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:27:26,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:27:26,585 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2021-12-19 15:27:26,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-19 15:27:26,585 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-12-19 15:27:26,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:27:26,586 INFO L225 Difference]: With dead ends: 37 [2021-12-19 15:27:26,586 INFO L226 Difference]: Without dead ends: 36 [2021-12-19 15:27:26,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=165, Invalid=485, Unknown=0, NotChecked=0, Total=650 [2021-12-19 15:27:26,587 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 37 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-19 15:27:26,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 36 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-19 15:27:26,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-12-19 15:27:26,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2021-12-19 15:27:26,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 33 states have (on average 1.0909090909090908) internal successors, (36), 34 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:27:26,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2021-12-19 15:27:26,591 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 13 [2021-12-19 15:27:26,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:27:26,591 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2021-12-19 15:27:26,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:27:26,592 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2021-12-19 15:27:26,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-19 15:27:26,592 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:27:26,592 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 1, 1, 1, 1] [2021-12-19 15:27:26,641 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-19 15:27:26,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-12-19 15:27:26,804 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-12-19 15:27:26,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:27:26,805 INFO L85 PathProgramCache]: Analyzing trace with hash 584006821, now seen corresponding path program 2 times [2021-12-19 15:27:26,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:27:26,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205001838] [2021-12-19 15:27:26,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:27:26,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:27:26,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:27:26,923 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:27:26,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:27:26,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205001838] [2021-12-19 15:27:26,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205001838] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:27:26,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763877256] [2021-12-19 15:27:26,926 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-19 15:27:26,926 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:27:26,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:27:26,927 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:27:26,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-19 15:27:26,973 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-19 15:27:26,973 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:27:26,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-19 15:27:26,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:27:27,045 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-19 15:27:27,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:27:27,106 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-19 15:27:27,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763877256] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:27:27,106 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:27:27,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2021-12-19 15:27:27,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247634797] [2021-12-19 15:27:27,107 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:27:27,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-19 15:27:27,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:27:27,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-19 15:27:27,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2021-12-19 15:27:27,108 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand has 15 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 15 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:27:27,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:27:27,247 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2021-12-19 15:27:27,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-19 15:27:27,249 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 15 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-12-19 15:27:27,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:27:27,254 INFO L225 Difference]: With dead ends: 35 [2021-12-19 15:27:27,254 INFO L226 Difference]: Without dead ends: 34 [2021-12-19 15:27:27,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=199, Invalid=557, Unknown=0, NotChecked=0, Total=756 [2021-12-19 15:27:27,256 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 32 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:27:27,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 29 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:27:27,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-12-19 15:27:27,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-12-19 15:27:27,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.0303030303030303) internal successors, (34), 33 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:27:27,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2021-12-19 15:27:27,261 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 25 [2021-12-19 15:27:27,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:27:27,261 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2021-12-19 15:27:27,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 15 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:27:27,261 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2021-12-19 15:27:27,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-12-19 15:27:27,262 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:27:27,262 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 1, 1, 1, 1] [2021-12-19 15:27:27,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-19 15:27:27,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:27:27,472 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-12-19 15:27:27,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:27:27,472 INFO L85 PathProgramCache]: Analyzing trace with hash -445508829, now seen corresponding path program 2 times [2021-12-19 15:27:27,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:27:27,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697220892] [2021-12-19 15:27:27,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:27:27,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:27:27,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:27:27,577 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-19 15:27:27,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:27:27,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697220892] [2021-12-19 15:27:27,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697220892] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:27:27,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696735474] [2021-12-19 15:27:27,578 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-19 15:27:27,578 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:27:27,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:27:27,579 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:27:27,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-19 15:27:27,612 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-19 15:27:27,612 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:27:27,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 25 conjunts are in the unsatisfiable core [2021-12-19 15:27:27,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:27:28,030 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:27:28,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:27:28,565 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:27:28,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696735474] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:27:28,565 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:27:28,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 19, 19] total 40 [2021-12-19 15:27:28,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113885050] [2021-12-19 15:27:28,566 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:27:28,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-12-19 15:27:28,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:27:28,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-12-19 15:27:28,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=1424, Unknown=0, NotChecked=0, Total=1640 [2021-12-19 15:27:28,568 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand has 41 states, 40 states have (on average 1.775) internal successors, (71), 41 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:27:29,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:27:29,258 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2021-12-19 15:27:29,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-12-19 15:27:29,259 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 1.775) internal successors, (71), 41 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-12-19 15:27:29,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:27:29,259 INFO L225 Difference]: With dead ends: 37 [2021-12-19 15:27:29,259 INFO L226 Difference]: Without dead ends: 0 [2021-12-19 15:27:29,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 906 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=663, Invalid=2997, Unknown=0, NotChecked=0, Total=3660 [2021-12-19 15:27:29,261 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 68 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-19 15:27:29,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 22 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-19 15:27:29,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-19 15:27:29,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-19 15:27:29,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:27:29,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-19 15:27:29,262 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2021-12-19 15:27:29,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:27:29,262 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-19 15:27:29,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 1.775) internal successors, (71), 41 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:27:29,263 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-19 15:27:29,263 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-19 15:27:29,265 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2021-12-19 15:27:29,265 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2021-12-19 15:27:29,265 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2021-12-19 15:27:29,265 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2021-12-19 15:27:29,284 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-19 15:27:29,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:27:29,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-19 15:27:29,571 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-12-19 15:27:29,571 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-19 15:27:29,571 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-12-19 15:27:29,571 INFO L858 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2021-12-19 15:27:29,571 INFO L858 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2021-12-19 15:27:29,572 INFO L858 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2021-12-19 15:27:29,572 INFO L858 garLoopResultBuilder]: For program point L25-2(line 25) no Hoare annotation was computed. [2021-12-19 15:27:29,572 INFO L858 garLoopResultBuilder]: For program point L25-3(line 25) no Hoare annotation was computed. [2021-12-19 15:27:29,572 INFO L858 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2021-12-19 15:27:29,572 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-19 15:27:29,572 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-12-19 15:27:29,572 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-12-19 15:27:29,572 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-19 15:27:29,572 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-19 15:27:29,572 INFO L861 garLoopResultBuilder]: At program point L28(lines 19 29) the Hoare annotation is: true [2021-12-19 15:27:29,572 INFO L854 garLoopResultBuilder]: At program point L24-2(lines 24 26) the Hoare annotation is: (and (or (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 2147483644)) (<= |ULTIMATE.start_main_~n~0#1| (+ |ULTIMATE.start_main_#t~post4#1| 3))) (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 2147483647)) (<= |ULTIMATE.start_main_~n~0#1| (+ |ULTIMATE.start_main_~j~0#1| |ULTIMATE.start_main_~k~0#1|)) (<= 0 |ULTIMATE.start_main_~j~0#1|) (or (<= |ULTIMATE.start_main_~n~0#1| (+ |ULTIMATE.start_main_#t~post4#1| 1)) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 2147483646))) (or (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 2147483645)) (<= |ULTIMATE.start_main_~n~0#1| (+ |ULTIMATE.start_main_#t~post4#1| 2))) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (or (<= |ULTIMATE.start_main_~n~0#1| (+ |ULTIMATE.start_main_#t~post4#1| 5)) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 2147483642))) (or (<= |ULTIMATE.start_main_~n~0#1| (+ |ULTIMATE.start_main_#t~post4#1| 4)) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 2147483643)))) [2021-12-19 15:27:29,572 INFO L858 garLoopResultBuilder]: For program point L24-3(lines 24 26) no Hoare annotation was computed. [2021-12-19 15:27:29,573 INFO L858 garLoopResultBuilder]: For program point L14(lines 14 18) no Hoare annotation was computed. [2021-12-19 15:27:29,575 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1] [2021-12-19 15:27:29,576 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-19 15:27:29,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 03:27:29 BoogieIcfgContainer [2021-12-19 15:27:29,588 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-19 15:27:29,589 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-19 15:27:29,589 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-19 15:27:29,589 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-19 15:27:29,590 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:27:24" (3/4) ... [2021-12-19 15:27:29,592 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-19 15:27:29,599 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-12-19 15:27:29,599 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-12-19 15:27:29,599 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-19 15:27:29,599 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-19 15:27:29,621 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-19 15:27:29,621 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-19 15:27:29,621 INFO L158 Benchmark]: Toolchain (without parser) took 5366.90ms. Allocated memory was 90.2MB in the beginning and 134.2MB in the end (delta: 44.0MB). Free memory was 57.3MB in the beginning and 99.7MB in the end (delta: -42.4MB). Peak memory consumption was 85.5kB. Max. memory is 16.1GB. [2021-12-19 15:27:29,622 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 90.2MB. Free memory was 61.5MB in the beginning and 61.4MB in the end (delta: 29.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 15:27:29,622 INFO L158 Benchmark]: CACSL2BoogieTranslator took 207.49ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 57.1MB in the beginning and 88.4MB in the end (delta: -31.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-19 15:27:29,622 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.52ms. Allocated memory is still 111.1MB. Free memory was 88.4MB in the beginning and 87.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 15:27:29,623 INFO L158 Benchmark]: Boogie Preprocessor took 26.63ms. Allocated memory is still 111.1MB. Free memory was 87.1MB in the beginning and 86.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 15:27:29,623 INFO L158 Benchmark]: RCFGBuilder took 200.90ms. Allocated memory is still 111.1MB. Free memory was 86.1MB in the beginning and 76.9MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-19 15:27:29,623 INFO L158 Benchmark]: TraceAbstraction took 4855.30ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 76.3MB in the beginning and 101.8MB in the end (delta: -25.5MB). Peak memory consumption was 51.3MB. Max. memory is 16.1GB. [2021-12-19 15:27:29,624 INFO L158 Benchmark]: Witness Printer took 32.18ms. Allocated memory is still 134.2MB. Free memory was 101.8MB in the beginning and 99.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 15:27:29,625 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 90.2MB. Free memory was 61.5MB in the beginning and 61.4MB in the end (delta: 29.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 207.49ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 57.1MB in the beginning and 88.4MB in the end (delta: -31.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.52ms. Allocated memory is still 111.1MB. Free memory was 88.4MB in the beginning and 87.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.63ms. Allocated memory is still 111.1MB. Free memory was 87.1MB in the beginning and 86.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 200.90ms. Allocated memory is still 111.1MB. Free memory was 86.1MB in the beginning and 76.9MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4855.30ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 76.3MB in the beginning and 101.8MB in the end (delta: -25.5MB). Peak memory consumption was 51.3MB. Max. memory is 16.1GB. * Witness Printer took 32.18ms. Allocated memory is still 134.2MB. Free memory was 101.8MB in the beginning and 99.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.8s, OverallIterations: 8, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 188 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 188 mSDsluCounter, 210 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 154 mSDsCounter, 150 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 598 IncrementalHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 150 mSolverCounterUnsat, 56 mSDtfsCounter, 598 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 257 GetRequests, 121 SyntacticMatches, 3 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1119 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=6, InterpolantAutomatonStates: 81, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 10 NumberOfFragments, 76 HoareAnnotationTreeSize, 2 FomulaSimplifications, 150 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 304 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 188 NumberOfCodeBlocks, 168 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 253 ConstructedInterpolants, 0 QuantifiedInterpolants, 1205 SizeOfPredicates, 31 NumberOfNonLiveVariables, 260 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 16 InterpolantComputations, 4 PerfectInterpolantSequences, 123/360 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (((((((((0 <= k + 2147483644 || n <= aux-j++-aux + 3) && n <= 2147483647) && 0 <= k + 2147483647) && n <= j + k) && 0 <= j) && (n <= aux-j++-aux + 1 || 0 <= k + 2147483646)) && (0 <= k + 2147483645 || n <= aux-j++-aux + 2)) && k <= 2147483647) && (n <= aux-j++-aux + 5 || 0 <= k + 2147483642)) && (n <= aux-j++-aux + 4 || 0 <= k + 2147483643) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-12-19 15:27:29,657 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE