./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/busybox-1.22.0/hostid.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9a8b2e8d 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_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/busybox-1.22.0/hostid.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3b6e96321d82dea19b0b24b62173907aded16288 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:31:05,053 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:31:05,056 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:31:05,083 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:31:05,084 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:31:05,085 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:31:05,086 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:31:05,088 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:31:05,090 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:31:05,091 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:31:05,092 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:31:05,093 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:31:05,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:31:05,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:31:05,095 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:31:05,096 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:31:05,097 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:31:05,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:31:05,100 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:31:05,102 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:31:05,103 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:31:05,113 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:31:05,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:31:05,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:31:05,123 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:31:05,124 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:31:05,124 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:31:05,125 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:31:05,127 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:31:05,129 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:31:05,130 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:31:05,130 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:31:05,132 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:31:05,134 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:31:05,135 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:31:05,136 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:31:05,137 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:31:05,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:31:05,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:31:05,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:31:05,139 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:31:05,141 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-20 06:31:05,190 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:31:05,191 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:31:05,192 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:31:05,194 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:31:05,194 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:31:05,195 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:31:05,195 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:31:05,195 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:31:05,195 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:31:05,196 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 06:31:05,197 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 06:31:05,197 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 06:31:05,197 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-20 06:31:05,198 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:31:05,198 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:31:05,198 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 06:31:05,198 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:31:05,199 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:31:05,199 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 06:31:05,199 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 06:31:05,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:31:05,200 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:31:05,200 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 06:31:05,200 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 06:31:05,201 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:31:05,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 06:31:05,201 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 06:31:05,201 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:31:05,202 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b6e96321d82dea19b0b24b62173907aded16288 [2020-10-20 06:31:05,446 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:31:05,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:31:05,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:31:05,465 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:31:05,466 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:31:05,466 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/busybox-1.22.0/hostid.i [2020-10-20 06:31:05,526 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf7b9bdbf/e29a373360de48faa05c29e9ad6110cd/FLAGf0cbf5510 [2020-10-20 06:31:06,151 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:31:06,152 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/hostid.i [2020-10-20 06:31:06,192 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf7b9bdbf/e29a373360de48faa05c29e9ad6110cd/FLAGf0cbf5510 [2020-10-20 06:31:06,297 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf7b9bdbf/e29a373360de48faa05c29e9ad6110cd [2020-10-20 06:31:06,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:31:06,311 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:31:06,314 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:31:06,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:31:06,319 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:31:06,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:31:06" (1/1) ... [2020-10-20 06:31:06,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67948367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:31:06, skipping insertion in model container [2020-10-20 06:31:06,325 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:31:06" (1/1) ... [2020-10-20 06:31:06,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:31:06,422 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:31:07,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:31:07,231 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:31:07,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:31:07,948 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:31:07,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:31:07 WrapperNode [2020-10-20 06:31:07,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:31:07,952 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:31:07,952 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:31:07,953 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:31:07,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:31:07" (1/1) ... [2020-10-20 06:31:08,035 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:31:07" (1/1) ... [2020-10-20 06:31:08,095 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:31:08,095 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:31:08,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:31:08,096 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:31:08,108 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:31:07" (1/1) ... [2020-10-20 06:31:08,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:31:07" (1/1) ... [2020-10-20 06:31:08,112 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:31:07" (1/1) ... [2020-10-20 06:31:08,113 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:31:07" (1/1) ... [2020-10-20 06:31:08,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:31:07" (1/1) ... [2020-10-20 06:31:08,150 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:31:07" (1/1) ... [2020-10-20 06:31:08,159 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:31:07" (1/1) ... [2020-10-20 06:31:08,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:31:08,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:31:08,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:31:08,168 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:31:08,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:31:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:31:08,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 06:31:08,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-20 06:31:08,228 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-10-20 06:31:08,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-20 06:31:08,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:31:08,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:31:08,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 06:31:08,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-20 06:31:08,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 06:31:08,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 06:31:08,821 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:31:08,822 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-20 06:31:08,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:31:08 BoogieIcfgContainer [2020-10-20 06:31:08,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:31:08,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 06:31:08,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 06:31:08,830 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 06:31:08,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:31:06" (1/3) ... [2020-10-20 06:31:08,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e93876b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:31:08, skipping insertion in model container [2020-10-20 06:31:08,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:31:07" (2/3) ... [2020-10-20 06:31:08,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e93876b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:31:08, skipping insertion in model container [2020-10-20 06:31:08,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:31:08" (3/3) ... [2020-10-20 06:31:08,834 INFO L111 eAbstractionObserver]: Analyzing ICFG hostid.i [2020-10-20 06:31:08,847 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 06:31:08,855 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-10-20 06:31:08,871 INFO L253 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-10-20 06:31:08,897 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 06:31:08,898 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 06:31:08,898 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 06:31:08,898 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:31:08,898 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:31:08,899 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 06:31:08,899 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:31:08,899 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 06:31:08,918 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-10-20 06:31:08,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-20 06:31:08,924 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:31:08,925 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-20 06:31:08,926 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:31:08,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:31:08,932 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2020-10-20 06:31:08,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:31:08,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231962695] [2020-10-20 06:31:08,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:31:09,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:31:09,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:31:09,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231962695] [2020-10-20 06:31:09,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:31:09,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 06:31:09,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730471180] [2020-10-20 06:31:09,356 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:31:09,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:31:09,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:31:09,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:31:09,373 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 3 states. [2020-10-20 06:31:09,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:31:09,441 INFO L93 Difference]: Finished difference Result 98 states and 116 transitions. [2020-10-20 06:31:09,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:31:09,443 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-20 06:31:09,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:31:09,452 INFO L225 Difference]: With dead ends: 98 [2020-10-20 06:31:09,452 INFO L226 Difference]: Without dead ends: 49 [2020-10-20 06:31:09,455 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:31:09,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-20 06:31:09,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-10-20 06:31:09,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-20 06:31:09,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2020-10-20 06:31:09,488 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 4 [2020-10-20 06:31:09,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:31:09,489 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2020-10-20 06:31:09,489 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:31:09,489 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2020-10-20 06:31:09,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 06:31:09,489 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:31:09,489 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2020-10-20 06:31:09,490 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 06:31:09,490 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:31:09,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:31:09,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1809705867, now seen corresponding path program 1 times [2020-10-20 06:31:09,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:31:09,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074345723] [2020-10-20 06:31:09,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:31:09,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:31:09,602 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 06:31:09,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074345723] [2020-10-20 06:31:09,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:31:09,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 06:31:09,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692286019] [2020-10-20 06:31:09,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:31:09,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:31:09,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:31:09,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:31:09,605 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand 3 states. [2020-10-20 06:31:09,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:31:09,629 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2020-10-20 06:31:09,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:31:09,631 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-20 06:31:09,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:31:09,632 INFO L225 Difference]: With dead ends: 49 [2020-10-20 06:31:09,632 INFO L226 Difference]: Without dead ends: 48 [2020-10-20 06:31:09,633 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:31:09,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-20 06:31:09,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-20 06:31:09,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-20 06:31:09,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2020-10-20 06:31:09,640 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 7 [2020-10-20 06:31:09,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:31:09,641 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2020-10-20 06:31:09,641 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:31:09,641 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2020-10-20 06:31:09,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-20 06:31:09,641 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:31:09,642 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2020-10-20 06:31:09,642 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 06:31:09,642 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:31:09,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:31:09,643 INFO L82 PathProgramCache]: Analyzing trace with hash 266307074, now seen corresponding path program 1 times [2020-10-20 06:31:09,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:31:09,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034357392] [2020-10-20 06:31:09,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:31:09,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:31:09,747 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:31:09,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034357392] [2020-10-20 06:31:09,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590599715] [2020-10-20 06:31:09,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:31:09,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:31:09,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 06:31:09,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:31:09,931 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:31:09,932 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-20 06:31:09,932 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2020-10-20 06:31:09,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830777334] [2020-10-20 06:31:09,933 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:31:09,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:31:09,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:31:09,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:31:09,934 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 4 states. [2020-10-20 06:31:09,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:31:09,968 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2020-10-20 06:31:09,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:31:09,969 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-10-20 06:31:09,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:31:09,970 INFO L225 Difference]: With dead ends: 48 [2020-10-20 06:31:09,970 INFO L226 Difference]: Without dead ends: 47 [2020-10-20 06:31:09,971 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:31:09,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-20 06:31:09,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2020-10-20 06:31:09,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-20 06:31:09,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2020-10-20 06:31:09,978 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 8 [2020-10-20 06:31:09,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:31:09,978 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2020-10-20 06:31:09,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:31:09,978 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2020-10-20 06:31:09,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 06:31:09,979 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:31:09,979 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:31:10,194 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-20 06:31:10,195 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:31:10,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:31:10,195 INFO L82 PathProgramCache]: Analyzing trace with hash -334468778, now seen corresponding path program 1 times [2020-10-20 06:31:10,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:31:10,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104016267] [2020-10-20 06:31:10,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:31:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:31:10,292 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:31:10,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104016267] [2020-10-20 06:31:10,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014629133] [2020-10-20 06:31:10,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:31:10,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:31:10,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 06:31:10,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:31:10,412 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:31:10,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:31:10,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-10-20 06:31:10,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214561304] [2020-10-20 06:31:10,414 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:31:10,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:31:10,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:31:10,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:31:10,415 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand 5 states. [2020-10-20 06:31:10,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:31:10,451 INFO L93 Difference]: Finished difference Result 89 states and 97 transitions. [2020-10-20 06:31:10,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:31:10,451 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-20 06:31:10,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:31:10,452 INFO L225 Difference]: With dead ends: 89 [2020-10-20 06:31:10,453 INFO L226 Difference]: Without dead ends: 50 [2020-10-20 06:31:10,453 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:31:10,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-20 06:31:10,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2020-10-20 06:31:10,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-20 06:31:10,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2020-10-20 06:31:10,460 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 9 [2020-10-20 06:31:10,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:31:10,460 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2020-10-20 06:31:10,460 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:31:10,460 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2020-10-20 06:31:10,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-20 06:31:10,461 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:31:10,461 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2020-10-20 06:31:10,674 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:31:10,675 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:31:10,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:31:10,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1759164880, now seen corresponding path program 2 times [2020-10-20 06:31:10,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:31:10,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656424502] [2020-10-20 06:31:10,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:31:10,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:31:10,784 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:31:10,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656424502] [2020-10-20 06:31:10,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911250462] [2020-10-20 06:31:10,785 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:31:10,891 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-20 06:31:10,891 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 06:31:10,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 06:31:10,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:31:10,930 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-10-20 06:31:10,931 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 06:31:10,943 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-20 06:31:10,944 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-20 06:31:10,944 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-10-20 06:31:10,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321049406] [2020-10-20 06:31:10,945 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:31:10,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:31:10,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:31:10,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:31:10,946 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 4 states. [2020-10-20 06:31:11,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:31:11,028 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2020-10-20 06:31:11,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:31:11,028 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-20 06:31:11,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:31:11,029 INFO L225 Difference]: With dead ends: 48 [2020-10-20 06:31:11,029 INFO L226 Difference]: Without dead ends: 40 [2020-10-20 06:31:11,030 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-20 06:31:11,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-20 06:31:11,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-10-20 06:31:11,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-20 06:31:11,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2020-10-20 06:31:11,035 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 12 [2020-10-20 06:31:11,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:31:11,036 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2020-10-20 06:31:11,036 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:31:11,036 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2020-10-20 06:31:11,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-20 06:31:11,037 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:31:11,037 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:31:11,249 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:31:11,250 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:31:11,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:31:11,251 INFO L82 PathProgramCache]: Analyzing trace with hash -172633462, now seen corresponding path program 1 times [2020-10-20 06:31:11,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:31:11,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184739417] [2020-10-20 06:31:11,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:31:11,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:31:11,328 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-20 06:31:11,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184739417] [2020-10-20 06:31:11,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:31:11,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 06:31:11,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241687899] [2020-10-20 06:31:11,329 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:31:11,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:31:11,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:31:11,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:31:11,330 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand 3 states. [2020-10-20 06:31:11,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:31:11,353 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2020-10-20 06:31:11,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:31:11,354 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-10-20 06:31:11,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:31:11,354 INFO L225 Difference]: With dead ends: 64 [2020-10-20 06:31:11,354 INFO L226 Difference]: Without dead ends: 43 [2020-10-20 06:31:11,355 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:31:11,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-20 06:31:11,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-10-20 06:31:11,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-20 06:31:11,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2020-10-20 06:31:11,360 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 22 [2020-10-20 06:31:11,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:31:11,361 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2020-10-20 06:31:11,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:31:11,361 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2020-10-20 06:31:11,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-20 06:31:11,362 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:31:11,362 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:31:11,362 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 06:31:11,362 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:31:11,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:31:11,363 INFO L82 PathProgramCache]: Analyzing trace with hash -1845883481, now seen corresponding path program 1 times [2020-10-20 06:31:11,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:31:11,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680244515] [2020-10-20 06:31:11,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:31:11,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:31:11,444 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-20 06:31:11,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680244515] [2020-10-20 06:31:11,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:31:11,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 06:31:11,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194043646] [2020-10-20 06:31:11,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:31:11,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:31:11,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:31:11,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:31:11,446 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand 3 states. [2020-10-20 06:31:11,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:31:11,479 INFO L93 Difference]: Finished difference Result 67 states and 74 transitions. [2020-10-20 06:31:11,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:31:11,479 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-10-20 06:31:11,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:31:11,480 INFO L225 Difference]: With dead ends: 67 [2020-10-20 06:31:11,480 INFO L226 Difference]: Without dead ends: 65 [2020-10-20 06:31:11,481 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:31:11,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-20 06:31:11,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 52. [2020-10-20 06:31:11,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-20 06:31:11,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 60 transitions. [2020-10-20 06:31:11,487 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 60 transitions. Word has length 25 [2020-10-20 06:31:11,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:31:11,487 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 60 transitions. [2020-10-20 06:31:11,488 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:31:11,488 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2020-10-20 06:31:11,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-20 06:31:11,489 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:31:11,489 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:31:11,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 06:31:11,489 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:31:11,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:31:11,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1845883426, now seen corresponding path program 1 times [2020-10-20 06:31:11,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:31:11,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609563615] [2020-10-20 06:31:11,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:31:11,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:31:11,569 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-20 06:31:11,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609563615] [2020-10-20 06:31:11,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:31:11,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 06:31:11,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270250665] [2020-10-20 06:31:11,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:31:11,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:31:11,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:31:11,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:31:11,572 INFO L87 Difference]: Start difference. First operand 52 states and 60 transitions. Second operand 3 states. [2020-10-20 06:31:11,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:31:11,590 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2020-10-20 06:31:11,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:31:11,591 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-10-20 06:31:11,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:31:11,591 INFO L225 Difference]: With dead ends: 52 [2020-10-20 06:31:11,592 INFO L226 Difference]: Without dead ends: 51 [2020-10-20 06:31:11,592 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:31:11,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-20 06:31:11,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-10-20 06:31:11,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-20 06:31:11,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2020-10-20 06:31:11,597 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 25 [2020-10-20 06:31:11,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:31:11,598 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2020-10-20 06:31:11,598 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:31:11,598 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2020-10-20 06:31:11,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-20 06:31:11,599 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:31:11,599 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:31:11,599 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 06:31:11,599 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:31:11,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:31:11,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1387811266, now seen corresponding path program 1 times [2020-10-20 06:31:11,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:31:11,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988572012] [2020-10-20 06:31:11,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:31:11,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:31:11,684 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-20 06:31:11,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988572012] [2020-10-20 06:31:11,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174582815] [2020-10-20 06:31:11,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:31:11,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:31:11,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:31:11,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:31:11,852 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-20 06:31:11,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:31:11,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5] total 7 [2020-10-20 06:31:11,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894158687] [2020-10-20 06:31:11,854 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 06:31:11,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:31:11,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 06:31:11,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:31:11,854 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand 7 states. [2020-10-20 06:31:11,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:31:11,938 INFO L93 Difference]: Finished difference Result 108 states and 124 transitions. [2020-10-20 06:31:11,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 06:31:11,940 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2020-10-20 06:31:11,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:31:11,941 INFO L225 Difference]: With dead ends: 108 [2020-10-20 06:31:11,941 INFO L226 Difference]: Without dead ends: 66 [2020-10-20 06:31:11,941 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:31:11,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-20 06:31:11,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 49. [2020-10-20 06:31:11,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-20 06:31:11,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 55 transitions. [2020-10-20 06:31:11,954 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 55 transitions. Word has length 26 [2020-10-20 06:31:11,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:31:11,955 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 55 transitions. [2020-10-20 06:31:11,955 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 06:31:11,955 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 55 transitions. [2020-10-20 06:31:11,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-20 06:31:11,957 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:31:11,957 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:31:12,172 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:31:12,173 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:31:12,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:31:12,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1627182508, now seen corresponding path program 1 times [2020-10-20 06:31:12,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:31:12,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542744007] [2020-10-20 06:31:12,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:31:12,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:31:12,240 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-20 06:31:12,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542744007] [2020-10-20 06:31:12,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:31:12,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 06:31:12,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319652052] [2020-10-20 06:31:12,242 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:31:12,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:31:12,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:31:12,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:31:12,243 INFO L87 Difference]: Start difference. First operand 49 states and 55 transitions. Second operand 3 states. [2020-10-20 06:31:12,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:31:12,271 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2020-10-20 06:31:12,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:31:12,272 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2020-10-20 06:31:12,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:31:12,273 INFO L225 Difference]: With dead ends: 54 [2020-10-20 06:31:12,273 INFO L226 Difference]: Without dead ends: 52 [2020-10-20 06:31:12,273 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:31:12,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-20 06:31:12,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-20 06:31:12,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-20 06:31:12,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 58 transitions. [2020-10-20 06:31:12,278 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 58 transitions. Word has length 31 [2020-10-20 06:31:12,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:31:12,279 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 58 transitions. [2020-10-20 06:31:12,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:31:12,279 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 58 transitions. [2020-10-20 06:31:12,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-20 06:31:12,280 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:31:12,280 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:31:12,280 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-20 06:31:12,280 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:31:12,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:31:12,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1901645191, now seen corresponding path program 1 times [2020-10-20 06:31:12,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:31:12,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583682269] [2020-10-20 06:31:12,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:31:12,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:31:12,378 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-20 06:31:12,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583682269] [2020-10-20 06:31:12,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92413197] [2020-10-20 06:31:12,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:31:12,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:31:12,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 06:31:12,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:31:12,554 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-20 06:31:12,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:31:12,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 6] total 8 [2020-10-20 06:31:12,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449218292] [2020-10-20 06:31:12,555 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 06:31:12,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:31:12,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 06:31:12,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-20 06:31:12,556 INFO L87 Difference]: Start difference. First operand 52 states and 58 transitions. Second operand 8 states. [2020-10-20 06:31:12,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:31:12,627 INFO L93 Difference]: Finished difference Result 100 states and 114 transitions. [2020-10-20 06:31:12,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 06:31:12,628 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2020-10-20 06:31:12,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:31:12,629 INFO L225 Difference]: With dead ends: 100 [2020-10-20 06:31:12,629 INFO L226 Difference]: Without dead ends: 60 [2020-10-20 06:31:12,630 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-20 06:31:12,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-20 06:31:12,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 57. [2020-10-20 06:31:12,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-20 06:31:12,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 63 transitions. [2020-10-20 06:31:12,636 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 63 transitions. Word has length 34 [2020-10-20 06:31:12,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:31:12,637 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 63 transitions. [2020-10-20 06:31:12,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 06:31:12,637 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 63 transitions. [2020-10-20 06:31:12,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-20 06:31:12,638 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:31:12,639 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:31:12,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-10-20 06:31:12,849 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:31:12,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:31:12,850 INFO L82 PathProgramCache]: Analyzing trace with hash 71284786, now seen corresponding path program 1 times [2020-10-20 06:31:12,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:31:12,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026212148] [2020-10-20 06:31:12,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:31:12,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:31:12,917 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-20 06:31:12,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026212148] [2020-10-20 06:31:12,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566724793] [2020-10-20 06:31:12,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:31:13,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:31:13,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 06:31:13,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:31:13,103 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-20 06:31:13,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:31:13,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7] total 9 [2020-10-20 06:31:13,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508422154] [2020-10-20 06:31:13,105 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-20 06:31:13,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:31:13,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-20 06:31:13,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-20 06:31:13,105 INFO L87 Difference]: Start difference. First operand 57 states and 63 transitions. Second operand 9 states. [2020-10-20 06:31:13,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:31:13,178 INFO L93 Difference]: Finished difference Result 114 states and 128 transitions. [2020-10-20 06:31:13,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 06:31:13,179 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 38 [2020-10-20 06:31:13,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:31:13,180 INFO L225 Difference]: With dead ends: 114 [2020-10-20 06:31:13,180 INFO L226 Difference]: Without dead ends: 72 [2020-10-20 06:31:13,181 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-20 06:31:13,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-20 06:31:13,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 66. [2020-10-20 06:31:13,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-20 06:31:13,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 72 transitions. [2020-10-20 06:31:13,187 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 72 transitions. Word has length 38 [2020-10-20 06:31:13,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:31:13,187 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 72 transitions. [2020-10-20 06:31:13,187 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-20 06:31:13,188 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 72 transitions. [2020-10-20 06:31:13,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-20 06:31:13,189 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:31:13,189 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:31:13,403 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:31:13,404 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:31:13,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:31:13,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1472783081, now seen corresponding path program 1 times [2020-10-20 06:31:13,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:31:13,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719074033] [2020-10-20 06:31:13,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:31:13,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:31:13,475 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-10-20 06:31:13,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719074033] [2020-10-20 06:31:13,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284050930] [2020-10-20 06:31:13,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:31:13,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:31:13,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 06:31:13,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:31:13,683 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-20 06:31:13,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:31:13,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 8] total 10 [2020-10-20 06:31:13,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711080983] [2020-10-20 06:31:13,685 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 06:31:13,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:31:13,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 06:31:13,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-20 06:31:13,686 INFO L87 Difference]: Start difference. First operand 66 states and 72 transitions. Second operand 10 states. [2020-10-20 06:31:13,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:31:13,759 INFO L93 Difference]: Finished difference Result 118 states and 131 transitions. [2020-10-20 06:31:13,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-20 06:31:13,760 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 41 [2020-10-20 06:31:13,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:31:13,760 INFO L225 Difference]: With dead ends: 118 [2020-10-20 06:31:13,760 INFO L226 Difference]: Without dead ends: 70 [2020-10-20 06:31:13,761 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-20 06:31:13,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-20 06:31:13,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2020-10-20 06:31:13,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-20 06:31:13,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 74 transitions. [2020-10-20 06:31:13,766 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 74 transitions. Word has length 41 [2020-10-20 06:31:13,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:31:13,766 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 74 transitions. [2020-10-20 06:31:13,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 06:31:13,767 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 74 transitions. [2020-10-20 06:31:13,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-20 06:31:13,768 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:31:13,768 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:31:13,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:31:13,969 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:31:13,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:31:13,970 INFO L82 PathProgramCache]: Analyzing trace with hash 312315462, now seen corresponding path program 2 times [2020-10-20 06:31:13,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:31:13,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90227000] [2020-10-20 06:31:13,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:31:14,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:31:14,064 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2020-10-20 06:31:14,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90227000] [2020-10-20 06:31:14,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350321108] [2020-10-20 06:31:14,065 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:31:14,187 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-20 06:31:14,187 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 06:31:14,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 06:31:14,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:31:14,214 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2020-10-20 06:31:14,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:31:14,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2020-10-20 06:31:14,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731904626] [2020-10-20 06:31:14,217 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:31:14,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:31:14,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:31:14,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:31:14,218 INFO L87 Difference]: Start difference. First operand 68 states and 74 transitions. Second operand 4 states. [2020-10-20 06:31:14,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:31:14,263 INFO L93 Difference]: Finished difference Result 68 states and 74 transitions. [2020-10-20 06:31:14,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:31:14,264 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2020-10-20 06:31:14,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:31:14,265 INFO L225 Difference]: With dead ends: 68 [2020-10-20 06:31:14,265 INFO L226 Difference]: Without dead ends: 53 [2020-10-20 06:31:14,265 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:31:14,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-20 06:31:14,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-10-20 06:31:14,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-20 06:31:14,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 56 transitions. [2020-10-20 06:31:14,269 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 56 transitions. Word has length 46 [2020-10-20 06:31:14,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:31:14,270 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 56 transitions. [2020-10-20 06:31:14,270 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:31:14,270 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 56 transitions. [2020-10-20 06:31:14,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-20 06:31:14,271 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:31:14,271 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:31:14,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-10-20 06:31:14,481 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:31:14,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:31:14,481 INFO L82 PathProgramCache]: Analyzing trace with hash -889966142, now seen corresponding path program 2 times [2020-10-20 06:31:14,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:31:14,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105353662] [2020-10-20 06:31:14,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:31:14,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:31:14,575 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-10-20 06:31:14,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105353662] [2020-10-20 06:31:14,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1560299348] [2020-10-20 06:31:14,577 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:31:14,667 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-20 06:31:14,667 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 06:31:14,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 06:31:14,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:31:14,738 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-10-20 06:31:14,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:31:14,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2020-10-20 06:31:14,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999835578] [2020-10-20 06:31:14,739 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:31:14,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:31:14,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:31:14,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:31:14,740 INFO L87 Difference]: Start difference. First operand 53 states and 56 transitions. Second operand 6 states. [2020-10-20 06:31:14,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:31:14,862 INFO L93 Difference]: Finished difference Result 64 states and 70 transitions. [2020-10-20 06:31:14,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 06:31:14,864 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2020-10-20 06:31:14,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:31:14,865 INFO L225 Difference]: With dead ends: 64 [2020-10-20 06:31:14,865 INFO L226 Difference]: Without dead ends: 63 [2020-10-20 06:31:14,865 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-20 06:31:14,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-20 06:31:14,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 52. [2020-10-20 06:31:14,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-20 06:31:14,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2020-10-20 06:31:14,873 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 50 [2020-10-20 06:31:14,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:31:14,874 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2020-10-20 06:31:14,874 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:31:14,875 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2020-10-20 06:31:14,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-20 06:31:14,879 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:31:14,879 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:31:15,080 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-10-20 06:31:15,081 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:31:15,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:31:15,081 INFO L82 PathProgramCache]: Analyzing trace with hash -1819146527, now seen corresponding path program 1 times [2020-10-20 06:31:15,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:31:15,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883933576] [2020-10-20 06:31:15,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:31:15,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:31:15,180 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-10-20 06:31:15,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883933576] [2020-10-20 06:31:15,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975859751] [2020-10-20 06:31:15,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:31:15,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:31:15,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 06:31:15,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:31:15,395 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-20 06:31:15,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:31:15,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 9] total 11 [2020-10-20 06:31:15,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173485413] [2020-10-20 06:31:15,397 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-20 06:31:15,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:31:15,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-20 06:31:15,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-10-20 06:31:15,398 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. Second operand 11 states. [2020-10-20 06:31:15,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:31:15,532 INFO L93 Difference]: Finished difference Result 87 states and 94 transitions. [2020-10-20 06:31:15,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-20 06:31:15,533 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 51 [2020-10-20 06:31:15,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:31:15,533 INFO L225 Difference]: With dead ends: 87 [2020-10-20 06:31:15,533 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 06:31:15,535 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-10-20 06:31:15,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 06:31:15,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 06:31:15,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 06:31:15,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 06:31:15,535 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2020-10-20 06:31:15,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:31:15,536 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:31:15,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-20 06:31:15,536 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 06:31:15,536 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 06:31:15,736 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-10-20 06:31:15,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 06:31:15,991 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 25 [2020-10-20 06:31:16,160 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1886) no Hoare annotation was computed. [2020-10-20 06:31:16,161 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1898) no Hoare annotation was computed. [2020-10-20 06:31:16,161 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1887) no Hoare annotation was computed. [2020-10-20 06:31:16,161 INFO L274 CegarLoopResult]: For program point L1894-2(lines 1894 1895) no Hoare annotation was computed. [2020-10-20 06:31:16,161 INFO L274 CegarLoopResult]: For program point L1894-3(line 1894) no Hoare annotation was computed. [2020-10-20 06:31:16,162 INFO L270 CegarLoopResult]: At program point L1894-4(lines 1894 1895) the Hoare annotation is: (let ((.cse4 (= ULTIMATE.start_main_~j~0 0)) (.cse7 (= ULTIMATE.start_main_~i~4 0)) (.cse0 (<= ULTIMATE.start_main_~argc~0 10000)) (.cse1 (<= ULTIMATE.start_main_~i~4 268435453)) (.cse2 (<= 1 ULTIMATE.start_main_~i~3)) (.cse8 (<= 1 ULTIMATE.start_main_~j~0)) (.cse3 (<= 1 ULTIMATE.start_main_~i~4)) (.cse5 (<= 1 ULTIMATE.start_main_~argc~0)) (.cse6 (= ULTIMATE.start_assume_abort_if_not_~cond 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse2 .cse7 .cse4 .cse5 .cse6) (and .cse0 .cse2 .cse8 .cse7 .cse5 .cse6) (and .cse0 .cse1 .cse2 .cse8 .cse3 .cse5 .cse6))) [2020-10-20 06:31:16,162 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1879) no Hoare annotation was computed. [2020-10-20 06:31:16,162 INFO L274 CegarLoopResult]: For program point L1886(line 1886) no Hoare annotation was computed. [2020-10-20 06:31:16,162 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 06:31:16,163 INFO L274 CegarLoopResult]: For program point L1886-1(line 1886) no Hoare annotation was computed. [2020-10-20 06:31:16,163 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 06:31:16,163 INFO L274 CegarLoopResult]: For program point L1886-2(line 1886) no Hoare annotation was computed. [2020-10-20 06:31:16,163 INFO L277 CegarLoopResult]: At program point L1903(lines 1875 1904) the Hoare annotation is: true [2020-10-20 06:31:16,163 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1887) no Hoare annotation was computed. [2020-10-20 06:31:16,164 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1879) no Hoare annotation was computed. [2020-10-20 06:31:16,164 INFO L274 CegarLoopResult]: For program point L1887(line 1887) no Hoare annotation was computed. [2020-10-20 06:31:16,164 INFO L274 CegarLoopResult]: For program point L1887-1(line 1887) no Hoare annotation was computed. [2020-10-20 06:31:16,164 INFO L274 CegarLoopResult]: For program point L1887-2(line 1887) no Hoare annotation was computed. [2020-10-20 06:31:16,164 INFO L274 CegarLoopResult]: For program point L1887-3(line 1887) no Hoare annotation was computed. [2020-10-20 06:31:16,164 INFO L274 CegarLoopResult]: For program point L1879-2(lines 1879 1880) no Hoare annotation was computed. [2020-10-20 06:31:16,165 INFO L274 CegarLoopResult]: For program point L1879-3(line 1879) no Hoare annotation was computed. [2020-10-20 06:31:16,165 INFO L270 CegarLoopResult]: At program point L1879-4(lines 1879 1880) the Hoare annotation is: (or (<= 1 ULTIMATE.start_main_~i~3) (= ULTIMATE.start_main_~i~3 0)) [2020-10-20 06:31:16,165 INFO L274 CegarLoopResult]: For program point L1879-5(lines 1879 1880) no Hoare annotation was computed. [2020-10-20 06:31:16,165 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1887) no Hoare annotation was computed. [2020-10-20 06:31:16,165 INFO L270 CegarLoopResult]: At program point L1789(lines 1780 1790) the Hoare annotation is: (and (<= ULTIMATE.start_main_~argc~0 10000) (<= 1 ULTIMATE.start_main_~i~3) (<= 1 ULTIMATE.start_main_~argc~0) (= ULTIMATE.start_assume_abort_if_not_~cond 1)) [2020-10-20 06:31:16,166 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1894) no Hoare annotation was computed. [2020-10-20 06:31:16,166 INFO L274 CegarLoopResult]: For program point L1889-2(lines 1889 1896) no Hoare annotation was computed. [2020-10-20 06:31:16,166 INFO L274 CegarLoopResult]: For program point L1889-3(line 1889) no Hoare annotation was computed. [2020-10-20 06:31:16,166 INFO L270 CegarLoopResult]: At program point L1889-4(lines 1889 1896) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~argc~0 10000)) (.cse1 (<= 1 ULTIMATE.start_main_~i~3)) (.cse2 (<= 1 ULTIMATE.start_main_~argc~0)) (.cse3 (= ULTIMATE.start_assume_abort_if_not_~cond 1))) (or (and .cse0 .cse1 (<= 1 ULTIMATE.start_main_~j~0) (<= 1 ULTIMATE.start_main_~i~4) .cse2 .cse3) (and .cse0 .cse1 (= ULTIMATE.start_main_~i~4 0) .cse2 .cse3))) [2020-10-20 06:31:16,167 INFO L274 CegarLoopResult]: For program point L1889-5(lines 1889 1896) no Hoare annotation was computed. [2020-10-20 06:31:16,167 INFO L274 CegarLoopResult]: For program point L1782(lines 1782 1783) no Hoare annotation was computed. [2020-10-20 06:31:16,167 INFO L274 CegarLoopResult]: For program point L1782-1(lines 1782 1783) no Hoare annotation was computed. [2020-10-20 06:31:16,167 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1894) no Hoare annotation was computed. [2020-10-20 06:31:16,167 INFO L274 CegarLoopResult]: For program point L1898-2(lines 1898 1899) no Hoare annotation was computed. [2020-10-20 06:31:16,167 INFO L274 CegarLoopResult]: For program point L1898-3(line 1898) no Hoare annotation was computed. [2020-10-20 06:31:16,168 INFO L270 CegarLoopResult]: At program point L1898-4(lines 1898 1899) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~argc~0 10000)) (.cse1 (<= 1 ULTIMATE.start_main_~i~3)) (.cse2 (<= 1 ULTIMATE.start_main_~argc~0)) (.cse3 (= ULTIMATE.start_assume_abort_if_not_~cond 1))) (or (and .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~i~5 0) .cse3) (and .cse0 .cse1 (<= 1 ULTIMATE.start_main_~i~5) .cse2 .cse3))) [2020-10-20 06:31:16,168 INFO L274 CegarLoopResult]: For program point L1898-5(lines 1898 1899) no Hoare annotation was computed. [2020-10-20 06:31:16,168 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 06:31:16,168 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1886) no Hoare annotation was computed. [2020-10-20 06:31:16,168 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1889) no Hoare annotation was computed. [2020-10-20 06:31:16,169 INFO L270 CegarLoopResult]: At program point L1775(lines 1771 1776) the Hoare annotation is: (and (<= ULTIMATE.start_main_~argc~0 10000) (<= 1 ULTIMATE.start_main_~i~3) (<= 1 ULTIMATE.start_main_~argc~0) (= ULTIMATE.start_assume_abort_if_not_~cond 1)) [2020-10-20 06:31:16,169 INFO L274 CegarLoopResult]: For program point L8(lines 8 10) no Hoare annotation was computed. [2020-10-20 06:31:16,169 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 06:31:16,169 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1886) no Hoare annotation was computed. [2020-10-20 06:31:16,169 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1889) no Hoare annotation was computed. [2020-10-20 06:31:16,169 INFO L274 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-10-20 06:31:16,170 INFO L270 CegarLoopResult]: At program point L1793(lines 1791 1794) the Hoare annotation is: (and (<= ULTIMATE.start_main_~argc~0 10000) (<= 1 ULTIMATE.start_main_~i~3) (<= 1 ULTIMATE.start_main_~argc~0) (= ULTIMATE.start_assume_abort_if_not_~cond 1)) [2020-10-20 06:31:16,170 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1886) no Hoare annotation was computed. [2020-10-20 06:31:16,170 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1898) no Hoare annotation was computed. [2020-10-20 06:31:16,170 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1887) no Hoare annotation was computed. [2020-10-20 06:31:16,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:31:16 BoogieIcfgContainer [2020-10-20 06:31:16,193 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 06:31:16,193 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:31:16,194 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:31:16,194 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:31:16,194 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:31:08" (3/4) ... [2020-10-20 06:31:16,198 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 06:31:16,211 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-10-20 06:31:16,212 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-10-20 06:31:16,213 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-20 06:31:16,213 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 06:31:16,316 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 06:31:16,316 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:31:16,318 INFO L168 Benchmark]: Toolchain (without parser) took 10013.02 ms. Allocated memory was 35.7 MB in the beginning and 108.0 MB in the end (delta: 72.4 MB). Free memory was 12.1 MB in the beginning and 81.0 MB in the end (delta: -68.8 MB). Peak memory consumption was 71.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:31:16,318 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 34.1 MB. Free memory was 10.2 MB in the beginning and 10.2 MB in the end (delta: 42.1 kB). Peak memory consumption was 42.1 kB. Max. memory is 14.3 GB. [2020-10-20 06:31:16,319 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1636.38 ms. Allocated memory was 35.7 MB in the beginning and 69.7 MB in the end (delta: 34.1 MB). Free memory was 11.3 MB in the beginning and 26.7 MB in the end (delta: -15.4 MB). Peak memory consumption was 30.9 MB. Max. memory is 14.3 GB. [2020-10-20 06:31:16,319 INFO L168 Benchmark]: Boogie Procedure Inliner took 143.08 ms. Allocated memory is still 69.7 MB. Free memory was 26.7 MB in the beginning and 22.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 14.3 GB. [2020-10-20 06:31:16,320 INFO L168 Benchmark]: Boogie Preprocessor took 71.86 ms. Allocated memory was 69.7 MB in the beginning and 73.4 MB in the end (delta: 3.7 MB). Free memory was 22.9 MB in the beginning and 49.7 MB in the end (delta: -26.9 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:31:16,320 INFO L168 Benchmark]: RCFGBuilder took 656.91 ms. Allocated memory was 73.4 MB in the beginning and 74.4 MB in the end (delta: 1.0 MB). Free memory was 49.7 MB in the beginning and 38.6 MB in the end (delta: 11.2 MB). Peak memory consumption was 33.9 MB. Max. memory is 14.3 GB. [2020-10-20 06:31:16,321 INFO L168 Benchmark]: TraceAbstraction took 7367.52 ms. Allocated memory was 74.4 MB in the beginning and 108.0 MB in the end (delta: 33.6 MB). Free memory was 37.9 MB in the beginning and 16.5 MB in the end (delta: 21.4 MB). Peak memory consumption was 55.0 MB. Max. memory is 14.3 GB. [2020-10-20 06:31:16,321 INFO L168 Benchmark]: Witness Printer took 122.83 ms. Allocated memory is still 108.0 MB. Free memory was 16.5 MB in the beginning and 81.0 MB in the end (delta: -64.5 MB). Peak memory consumption was 3.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:31:16,325 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 34.1 MB. Free memory was 10.2 MB in the beginning and 10.2 MB in the end (delta: 42.1 kB). Peak memory consumption was 42.1 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 1636.38 ms. Allocated memory was 35.7 MB in the beginning and 69.7 MB in the end (delta: 34.1 MB). Free memory was 11.3 MB in the beginning and 26.7 MB in the end (delta: -15.4 MB). Peak memory consumption was 30.9 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 143.08 ms. Allocated memory is still 69.7 MB. Free memory was 26.7 MB in the beginning and 22.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 71.86 ms. Allocated memory was 69.7 MB in the beginning and 73.4 MB in the end (delta: 3.7 MB). Free memory was 22.9 MB in the beginning and 49.7 MB in the end (delta: -26.9 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.3 GB. * RCFGBuilder took 656.91 ms. Allocated memory was 73.4 MB in the beginning and 74.4 MB in the end (delta: 1.0 MB). Free memory was 49.7 MB in the beginning and 38.6 MB in the end (delta: 11.2 MB). Peak memory consumption was 33.9 MB. Max. memory is 14.3 GB. * TraceAbstraction took 7367.52 ms. Allocated memory was 74.4 MB in the beginning and 108.0 MB in the end (delta: 33.6 MB). Free memory was 37.9 MB in the beginning and 16.5 MB in the end (delta: 21.4 MB). Peak memory consumption was 55.0 MB. Max. memory is 14.3 GB. * Witness Printer took 122.83 ms. Allocated memory is still 108.0 MB. Free memory was 16.5 MB in the beginning and 81.0 MB in the end (delta: -64.5 MB). Peak memory consumption was 3.6 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1886]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1894]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1886]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1886]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1889]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1887]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1894]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1887]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1887]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1887]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1889]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1898]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1898]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1879]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1886]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1879]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 1879]: Loop Invariant Derived loop invariant: 1 <= i || i == 0 - InvariantResult [Line: 1894]: Loop Invariant Derived loop invariant: ((((((((argc <= 10000 && i <= 268435453) && 1 <= i) && 1 <= i) && j == 0) && 1 <= argc) && cond == 1) || (((((argc <= 10000 && 1 <= i) && i == 0) && j == 0) && 1 <= argc) && cond == 1)) || (((((argc <= 10000 && 1 <= i) && 1 <= j) && i == 0) && 1 <= argc) && cond == 1)) || ((((((argc <= 10000 && i <= 268435453) && 1 <= i) && 1 <= j) && 1 <= i) && 1 <= argc) && cond == 1) - InvariantResult [Line: 1780]: Loop Invariant Derived loop invariant: ((argc <= 10000 && 1 <= i) && 1 <= argc) && cond == 1 - InvariantResult [Line: 1889]: Loop Invariant Derived loop invariant: (((((argc <= 10000 && 1 <= i) && 1 <= j) && 1 <= i) && 1 <= argc) && cond == 1) || ((((argc <= 10000 && 1 <= i) && i == 0) && 1 <= argc) && cond == 1) - InvariantResult [Line: 1898]: Loop Invariant Derived loop invariant: ((((argc <= 10000 && 1 <= i) && 1 <= argc) && i == 0) && cond == 1) || ((((argc <= 10000 && 1 <= i) && 1 <= i) && 1 <= argc) && cond == 1) - InvariantResult [Line: 1791]: Loop Invariant Derived loop invariant: ((argc <= 10000 && 1 <= i) && 1 <= argc) && cond == 1 - InvariantResult [Line: 1771]: Loop Invariant Derived loop invariant: ((argc <= 10000 && 1 <= i) && 1 <= argc) && cond == 1 - InvariantResult [Line: 1875]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 50 locations, 16 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.8s, OverallIterations: 16, TraceHistogramMax: 6, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 550 SDtfs, 272 SDslu, 900 SDs, 0 SdLazy, 422 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 357 GetRequests, 293 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=13, 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, 16 MinimizatonAttempts, 56 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 30 NumberOfFragments, 199 HoareAnnotationTreeSize, 8 FomulaSimplifications, 527 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 143 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 744 NumberOfCodeBlocks, 680 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 718 ConstructedInterpolants, 0 QuantifiedInterpolants, 45433 SizeOfPredicates, 10 NumberOfNonLiveVariables, 1738 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 26 InterpolantComputations, 8 PerfectInterpolantSequences, 467/672 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...