./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-numeric/TwoWay.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-numeric/TwoWay.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash dd635190a9aa277670265f46b90ecce0c321a2a9 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:33:12,133 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:33:12,137 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:33:12,184 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:33:12,185 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:33:12,198 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:33:12,199 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:33:12,203 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:33:12,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:33:12,208 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:33:12,210 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:33:12,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:33:12,212 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:33:12,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:33:12,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:33:12,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:33:12,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:33:12,222 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:33:12,225 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:33:12,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:33:12,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:33:12,236 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:33:12,238 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:33:12,239 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:33:12,243 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:33:12,243 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:33:12,244 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:33:12,246 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:33:12,246 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:33:12,247 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:33:12,247 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:33:12,248 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:33:12,249 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:33:12,250 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:33:12,251 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:33:12,252 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:33:12,252 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:33:12,253 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:33:12,253 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:33:12,254 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:33:12,255 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:33:12,256 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-19 18:33:12,301 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:33:12,302 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:33:12,304 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:33:12,305 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:33:12,305 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:33:12,306 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:33:12,306 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:33:12,306 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:33:12,307 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:33:12,307 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 18:33:12,308 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:33:12,308 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 18:33:12,309 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-19 18:33:12,309 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 18:33:12,310 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:33:12,310 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 18:33:12,310 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:33:12,310 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:33:12,311 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:33:12,311 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:33:12,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:33:12,312 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:33:12,312 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:33:12,312 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 18:33:12,313 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:33:12,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 18:33:12,313 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 18:33:12,314 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:33:12,314 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 -> dd635190a9aa277670265f46b90ecce0c321a2a9 [2020-10-19 18:33:12,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:33:12,643 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:33:12,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:33:12,649 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:33:12,649 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:33:12,650 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/TwoWay.c [2020-10-19 18:33:12,716 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/317070fcb/3a39c6dfd1af4d05ad13ac729ca87ecf/FLAG471e9a6e5 [2020-10-19 18:33:13,114 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:33:13,117 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/TwoWay.c [2020-10-19 18:33:13,126 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/317070fcb/3a39c6dfd1af4d05ad13ac729ca87ecf/FLAG471e9a6e5 [2020-10-19 18:33:13,483 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/317070fcb/3a39c6dfd1af4d05ad13ac729ca87ecf [2020-10-19 18:33:13,487 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:33:13,494 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 18:33:13,495 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:33:13,495 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:33:13,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:33:13,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:33:13" (1/1) ... [2020-10-19 18:33:13,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ad95b87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:33:13, skipping insertion in model container [2020-10-19 18:33:13,503 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:33:13" (1/1) ... [2020-10-19 18:33:13,510 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:33:13,527 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:33:13,706 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:33:13,715 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:33:13,735 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:33:13,746 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:33:13,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:33:13 WrapperNode [2020-10-19 18:33:13,747 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:33:13,748 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 18:33:13,748 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 18:33:13,748 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 18:33:13,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:33:13" (1/1) ... [2020-10-19 18:33:13,762 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:33:13" (1/1) ... [2020-10-19 18:33:13,777 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 18:33:13,778 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:33:13,778 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:33:13,778 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:33:13,787 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:33:13" (1/1) ... [2020-10-19 18:33:13,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:33:13" (1/1) ... [2020-10-19 18:33:13,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:33:13" (1/1) ... [2020-10-19 18:33:13,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:33:13" (1/1) ... [2020-10-19 18:33:13,791 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:33:13" (1/1) ... [2020-10-19 18:33:13,847 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:33:13" (1/1) ... [2020-10-19 18:33:13,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:33:13" (1/1) ... [2020-10-19 18:33:13,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:33:13,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:33:13,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:33:13,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:33:13,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:33:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:33:13,921 INFO L130 BoogieDeclarations]: Found specification of procedure twoWay [2020-10-19 18:33:13,922 INFO L138 BoogieDeclarations]: Found implementation of procedure twoWay [2020-10-19 18:33:13,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:33:13,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:33:14,165 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:33:14,165 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-19 18:33:14,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:33:14 BoogieIcfgContainer [2020-10-19 18:33:14,167 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:33:14,169 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:33:14,169 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:33:14,172 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:33:14,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:33:13" (1/3) ... [2020-10-19 18:33:14,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57a883ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:33:14, skipping insertion in model container [2020-10-19 18:33:14,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:33:13" (2/3) ... [2020-10-19 18:33:14,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57a883ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:33:14, skipping insertion in model container [2020-10-19 18:33:14,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:33:14" (3/3) ... [2020-10-19 18:33:14,176 INFO L111 eAbstractionObserver]: Analyzing ICFG TwoWay.c [2020-10-19 18:33:14,189 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:33:14,197 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-10-19 18:33:14,212 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-19 18:33:14,241 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:33:14,241 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 18:33:14,241 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:33:14,242 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:33:14,242 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:33:14,242 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:33:14,242 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:33:14,242 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:33:14,266 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-10-19 18:33:14,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-19 18:33:14,272 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:33:14,273 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:33:14,274 INFO L429 AbstractCegarLoop]: === Iteration 1 === [twoWayErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:33:14,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:33:14,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1734939443, now seen corresponding path program 1 times [2020-10-19 18:33:14,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:33:14,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635800416] [2020-10-19 18:33:14,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:33:14,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:33:14,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:33:14,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635800416] [2020-10-19 18:33:14,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:33:14,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-19 18:33:14,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377223377] [2020-10-19 18:33:14,581 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-19 18:33:14,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:33:14,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 18:33:14,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-19 18:33:14,594 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 7 states. [2020-10-19 18:33:14,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:33:14,810 INFO L93 Difference]: Finished difference Result 56 states and 65 transitions. [2020-10-19 18:33:14,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-19 18:33:14,812 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2020-10-19 18:33:14,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:33:14,823 INFO L225 Difference]: With dead ends: 56 [2020-10-19 18:33:14,823 INFO L226 Difference]: Without dead ends: 51 [2020-10-19 18:33:14,827 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-19 18:33:14,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-19 18:33:14,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 37. [2020-10-19 18:33:14,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-19 18:33:14,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 47 transitions. [2020-10-19 18:33:14,879 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 47 transitions. Word has length 8 [2020-10-19 18:33:14,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:33:14,880 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 47 transitions. [2020-10-19 18:33:14,880 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-19 18:33:14,880 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2020-10-19 18:33:14,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-19 18:33:14,881 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:33:14,881 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:33:14,881 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 18:33:14,882 INFO L429 AbstractCegarLoop]: === Iteration 2 === [twoWayErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:33:14,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:33:14,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1734939635, now seen corresponding path program 1 times [2020-10-19 18:33:14,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:33:14,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942500861] [2020-10-19 18:33:14,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:33:14,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:33:14,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:33:14,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942500861] [2020-10-19 18:33:14,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:33:14,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 18:33:14,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376996811] [2020-10-19 18:33:14,925 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:33:14,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:33:14,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:33:14,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:33:14,926 INFO L87 Difference]: Start difference. First operand 37 states and 47 transitions. Second operand 4 states. [2020-10-19 18:33:14,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:33:14,951 INFO L93 Difference]: Finished difference Result 45 states and 54 transitions. [2020-10-19 18:33:14,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:33:14,952 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-10-19 18:33:14,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:33:14,953 INFO L225 Difference]: With dead ends: 45 [2020-10-19 18:33:14,953 INFO L226 Difference]: Without dead ends: 18 [2020-10-19 18:33:14,955 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:33:14,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-10-19 18:33:14,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-19 18:33:14,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-19 18:33:14,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2020-10-19 18:33:14,961 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 8 [2020-10-19 18:33:14,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:33:14,962 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2020-10-19 18:33:14,962 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:33:14,962 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-10-19 18:33:14,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-19 18:33:14,963 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:33:14,963 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:33:14,963 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 18:33:14,964 INFO L429 AbstractCegarLoop]: === Iteration 3 === [twoWayErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:33:14,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:33:14,965 INFO L82 PathProgramCache]: Analyzing trace with hash -2051452074, now seen corresponding path program 1 times [2020-10-19 18:33:14,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:33:14,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659583641] [2020-10-19 18:33:14,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:33:14,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:33:15,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:33:15,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659583641] [2020-10-19 18:33:15,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:33:15,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:33:15,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367894101] [2020-10-19 18:33:15,023 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:33:15,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:33:15,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:33:15,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:33:15,027 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 4 states. [2020-10-19 18:33:15,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:33:15,069 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2020-10-19 18:33:15,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:33:15,071 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-19 18:33:15,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:33:15,072 INFO L225 Difference]: With dead ends: 18 [2020-10-19 18:33:15,072 INFO L226 Difference]: Without dead ends: 17 [2020-10-19 18:33:15,072 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:33:15,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-10-19 18:33:15,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-10-19 18:33:15,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-19 18:33:15,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-10-19 18:33:15,083 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 9 [2020-10-19 18:33:15,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:33:15,085 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-10-19 18:33:15,085 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:33:15,085 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-10-19 18:33:15,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-19 18:33:15,087 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:33:15,087 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:33:15,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 18:33:15,088 INFO L429 AbstractCegarLoop]: === Iteration 4 === [twoWayErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:33:15,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:33:15,088 INFO L82 PathProgramCache]: Analyzing trace with hash 2048642091, now seen corresponding path program 1 times [2020-10-19 18:33:15,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:33:15,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840394126] [2020-10-19 18:33:15,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:33:15,127 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-19 18:33:15,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [392503955] [2020-10-19 18:33:15,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:33:15,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:33:15,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-19 18:33:15,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:33:15,287 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-19 18:33:15,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840394126] [2020-10-19 18:33:15,288 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-10-19 18:33:15,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392503955] [2020-10-19 18:33:15,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:33:15,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 18:33:15,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376367713] [2020-10-19 18:33:15,290 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:33:15,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:33:15,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:33:15,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:33:15,291 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 5 states. [2020-10-19 18:33:15,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:33:15,384 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2020-10-19 18:33:15,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:33:15,385 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-19 18:33:15,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:33:15,386 INFO L225 Difference]: With dead ends: 24 [2020-10-19 18:33:15,386 INFO L226 Difference]: Without dead ends: 23 [2020-10-19 18:33:15,387 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-19 18:33:15,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-19 18:33:15,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2020-10-19 18:33:15,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-19 18:33:15,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-10-19 18:33:15,392 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 16 [2020-10-19 18:33:15,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:33:15,393 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-10-19 18:33:15,393 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:33:15,393 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-10-19 18:33:15,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-19 18:33:15,394 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:33:15,394 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:33:15,595 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:33:15,595 INFO L429 AbstractCegarLoop]: === Iteration 5 === [twoWayErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:33:15,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:33:15,596 INFO L82 PathProgramCache]: Analyzing trace with hash -916604565, now seen corresponding path program 1 times [2020-10-19 18:33:15,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:33:15,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572830298] [2020-10-19 18:33:15,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:33:15,610 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-19 18:33:15,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [623197173] [2020-10-19 18:33:15,612 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 [2020-10-19 18:33:15,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:33:15,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-19 18:33:15,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:33:15,741 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-19 18:33:15,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572830298] [2020-10-19 18:33:15,742 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-10-19 18:33:15,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623197173] [2020-10-19 18:33:15,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:33:15,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-19 18:33:15,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656013114] [2020-10-19 18:33:15,743 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-19 18:33:15,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:33:15,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-19 18:33:15,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-19 18:33:15,744 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 8 states. [2020-10-19 18:33:17,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:33:17,903 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2020-10-19 18:33:17,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-19 18:33:17,927 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2020-10-19 18:33:17,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:33:17,928 INFO L225 Difference]: With dead ends: 23 [2020-10-19 18:33:17,929 INFO L226 Difference]: Without dead ends: 22 [2020-10-19 18:33:17,929 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-19 18:33:17,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-19 18:33:17,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-19 18:33:17,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-19 18:33:17,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-10-19 18:33:17,934 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 17 [2020-10-19 18:33:17,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:33:17,935 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-10-19 18:33:17,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-19 18:33:17,935 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-10-19 18:33:17,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-19 18:33:17,936 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:33:17,936 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:33:18,145 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:33:18,146 INFO L429 AbstractCegarLoop]: === Iteration 6 === [twoWayErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:33:18,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:33:18,147 INFO L82 PathProgramCache]: Analyzing trace with hash 37921722, now seen corresponding path program 1 times [2020-10-19 18:33:18,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:33:18,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121518747] [2020-10-19 18:33:18,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:33:18,171 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-19 18:33:18,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1030545552] [2020-10-19 18:33:18,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-10-19 18:33:18,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:33:18,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-19 18:33:18,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:33:18,484 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-19 18:33:18,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121518747] [2020-10-19 18:33:18,485 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-10-19 18:33:18,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030545552] [2020-10-19 18:33:18,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-19 18:33:18,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-19 18:33:18,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132701433] [2020-10-19 18:33:18,487 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-19 18:33:18,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:33:18,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-19 18:33:18,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-19 18:33:18,488 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 9 states. [2020-10-19 18:33:19,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:33:19,177 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2020-10-19 18:33:19,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-19 18:33:19,178 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-10-19 18:33:19,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:33:19,179 INFO L225 Difference]: With dead ends: 29 [2020-10-19 18:33:19,179 INFO L226 Difference]: Without dead ends: 28 [2020-10-19 18:33:19,180 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-10-19 18:33:19,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-19 18:33:19,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2020-10-19 18:33:19,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-19 18:33:19,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-10-19 18:33:19,185 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 27 [2020-10-19 18:33:19,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:33:19,185 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-10-19 18:33:19,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-19 18:33:19,186 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-10-19 18:33:19,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-19 18:33:19,187 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:33:19,187 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:33:19,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:33:19,400 INFO L429 AbstractCegarLoop]: === Iteration 7 === [twoWayErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:33:19,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:33:19,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1175573436, now seen corresponding path program 1 times [2020-10-19 18:33:19,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:33:19,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141399846] [2020-10-19 18:33:19,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:33:19,417 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-19 18:33:19,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1179419022] [2020-10-19 18:33:19,418 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 [2020-10-19 18:33:19,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:33:19,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 13 conjunts are in the unsatisfiable core [2020-10-19 18:33:19,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:33:19,683 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-19 18:33:19,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141399846] [2020-10-19 18:33:19,683 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-10-19 18:33:19,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179419022] [2020-10-19 18:33:19,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-19 18:33:19,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-19 18:33:19,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359107351] [2020-10-19 18:33:19,685 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-19 18:33:19,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:33:19,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-19 18:33:19,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-19 18:33:19,686 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 10 states. [2020-10-19 18:33:21,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:33:21,981 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2020-10-19 18:33:22,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-19 18:33:22,018 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 28 [2020-10-19 18:33:22,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:33:22,019 INFO L225 Difference]: With dead ends: 28 [2020-10-19 18:33:22,019 INFO L226 Difference]: Without dead ends: 27 [2020-10-19 18:33:22,020 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2020-10-19 18:33:22,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-19 18:33:22,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-19 18:33:22,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-19 18:33:22,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-10-19 18:33:22,024 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 28 [2020-10-19 18:33:22,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:33:22,024 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-10-19 18:33:22,024 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-19 18:33:22,024 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-10-19 18:33:22,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-19 18:33:22,026 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:33:22,026 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2020-10-19 18:33:22,236 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:33:22,238 INFO L429 AbstractCegarLoop]: === Iteration 8 === [twoWayErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:33:22,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:33:22,239 INFO L82 PathProgramCache]: Analyzing trace with hash 1826938493, now seen corresponding path program 2 times [2020-10-19 18:33:22,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:33:22,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483273715] [2020-10-19 18:33:22,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:33:22,254 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-19 18:33:22,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1326840806] [2020-10-19 18:33:22,255 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 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 [2020-10-19 18:33:22,326 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-19 18:33:22,326 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 18:33:22,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2020-10-19 18:33:22,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:33:22,676 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 23 proven. 19 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-19 18:33:22,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483273715] [2020-10-19 18:33:22,677 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-10-19 18:33:22,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326840806] [2020-10-19 18:33:22,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-19 18:33:22,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-19 18:33:22,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475185176] [2020-10-19 18:33:22,679 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-19 18:33:22,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:33:22,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-19 18:33:22,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-10-19 18:33:22,681 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 16 states. [2020-10-19 18:33:25,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:33:25,197 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2020-10-19 18:33:25,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-19 18:33:25,198 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 44 [2020-10-19 18:33:25,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:33:25,199 INFO L225 Difference]: With dead ends: 29 [2020-10-19 18:33:25,199 INFO L226 Difference]: Without dead ends: 28 [2020-10-19 18:33:25,200 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=121, Invalid=479, Unknown=0, NotChecked=0, Total=600 [2020-10-19 18:33:25,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-19 18:33:25,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2020-10-19 18:33:25,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-19 18:33:25,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-10-19 18:33:25,209 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 44 [2020-10-19 18:33:25,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:33:25,210 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-10-19 18:33:25,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-19 18:33:25,214 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-10-19 18:33:25,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-19 18:33:25,216 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:33:25,217 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1] [2020-10-19 18:33:25,430 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:33:25,431 INFO L429 AbstractCegarLoop]: === Iteration 9 === [twoWayErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, twoWayErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:33:25,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:33:25,432 INFO L82 PathProgramCache]: Analyzing trace with hash 800518489, now seen corresponding path program 2 times [2020-10-19 18:33:25,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:33:25,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082189489] [2020-10-19 18:33:25,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:33:25,446 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-19 18:33:25,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [944280850] [2020-10-19 18:33:25,447 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 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 [2020-10-19 18:33:25,498 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-19 18:33:25,498 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 18:33:25,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 23 conjunts are in the unsatisfiable core [2020-10-19 18:33:25,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:33:28,718 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 23 proven. 21 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-19 18:33:28,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082189489] [2020-10-19 18:33:28,719 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-10-19 18:33:28,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [944280850] [2020-10-19 18:33:28,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-19 18:33:28,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-19 18:33:28,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132358822] [2020-10-19 18:33:28,721 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-19 18:33:28,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:33:28,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-19 18:33:28,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=230, Unknown=2, NotChecked=0, Total=272 [2020-10-19 18:33:28,722 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 17 states. [2020-10-19 18:33:29,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:33:29,403 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2020-10-19 18:33:29,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-19 18:33:29,405 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 45 [2020-10-19 18:33:29,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:33:29,406 INFO L225 Difference]: With dead ends: 26 [2020-10-19 18:33:29,406 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 18:33:29,407 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=123, Invalid=525, Unknown=2, NotChecked=0, Total=650 [2020-10-19 18:33:29,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 18:33:29,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 18:33:29,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 18:33:29,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 18:33:29,408 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2020-10-19 18:33:29,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:33:29,408 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:33:29,408 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-19 18:33:29,409 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 18:33:29,409 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 18:33:29,609 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:33:29,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 18:33:29,694 INFO L274 CegarLoopResult]: For program point L31(lines 31 35) no Hoare annotation was computed. [2020-10-19 18:33:29,695 INFO L270 CegarLoopResult]: At program point L31-2(lines 31 35) the Hoare annotation is: (or (not (<= |twoWay_#in~n| 2147483647)) (let ((.cse0 (+ twoWay_~m~0 1))) (and (<= .cse0 |twoWay_#in~n|) (<= 1 twoWay_~terminate) (<= |twoWay_#in~n| twoWay_~n) (<= 0 |twoWay_#in~n|) (<= |twoWay_#in~n| .cse0) (<= twoWay_~n |twoWay_#in~n|))) (not (<= 1 |twoWay_#in~terminate|))) [2020-10-19 18:33:29,695 INFO L274 CegarLoopResult]: For program point L27(lines 27 37) no Hoare annotation was computed. [2020-10-19 18:33:29,695 INFO L274 CegarLoopResult]: For program point twoWayErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2020-10-19 18:33:29,695 INFO L274 CegarLoopResult]: For program point twoWayFINAL(lines 26 38) no Hoare annotation was computed. [2020-10-19 18:33:29,696 INFO L274 CegarLoopResult]: For program point twoWayErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2020-10-19 18:33:29,696 INFO L274 CegarLoopResult]: For program point twoWayErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2020-10-19 18:33:29,696 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-19 18:33:29,696 INFO L274 CegarLoopResult]: For program point L36-1(line 36) no Hoare annotation was computed. [2020-10-19 18:33:29,696 INFO L274 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-10-19 18:33:29,696 INFO L274 CegarLoopResult]: For program point L36-2(line 36) no Hoare annotation was computed. [2020-10-19 18:33:29,696 INFO L274 CegarLoopResult]: For program point L34-1(line 34) no Hoare annotation was computed. [2020-10-19 18:33:29,697 INFO L274 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-10-19 18:33:29,697 INFO L274 CegarLoopResult]: For program point L32-1(line 32) no Hoare annotation was computed. [2020-10-19 18:33:29,697 INFO L277 CegarLoopResult]: At program point twoWayENTRY(lines 26 38) the Hoare annotation is: true [2020-10-19 18:33:29,697 INFO L274 CegarLoopResult]: For program point twoWayErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2020-10-19 18:33:29,697 INFO L274 CegarLoopResult]: For program point twoWayErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2020-10-19 18:33:29,697 INFO L274 CegarLoopResult]: For program point twoWayErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2020-10-19 18:33:29,697 INFO L274 CegarLoopResult]: For program point twoWayEXIT(lines 26 38) no Hoare annotation was computed. [2020-10-19 18:33:29,698 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 18:33:29,698 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 18:33:29,698 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 18:33:29,698 INFO L270 CegarLoopResult]: At program point L48(line 48) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2020-10-19 18:33:29,698 INFO L274 CegarLoopResult]: For program point L48-1(line 48) no Hoare annotation was computed. [2020-10-19 18:33:29,698 INFO L274 CegarLoopResult]: For program point L45(lines 45 46) no Hoare annotation was computed. [2020-10-19 18:33:29,698 INFO L274 CegarLoopResult]: For program point L42(lines 42 43) no Hoare annotation was computed. [2020-10-19 18:33:29,698 INFO L270 CegarLoopResult]: At program point L40(lines 40 50) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2020-10-19 18:33:29,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:33:29 BoogieIcfgContainer [2020-10-19 18:33:29,713 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:33:29,714 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:33:29,714 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:33:29,715 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:33:29,715 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:33:14" (3/4) ... [2020-10-19 18:33:29,719 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 18:33:29,727 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure twoWay [2020-10-19 18:33:29,733 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-10-19 18:33:29,733 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-10-19 18:33:29,784 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 18:33:29,784 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:33:29,787 INFO L168 Benchmark]: Toolchain (without parser) took 16298.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 194.5 MB). Free memory was 958.6 MB in the beginning and 962.0 MB in the end (delta: -3.4 MB). Peak memory consumption was 191.1 MB. Max. memory is 11.5 GB. [2020-10-19 18:33:29,788 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:33:29,791 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.51 ms. Allocated memory is still 1.0 GB. Free memory was 958.6 MB in the beginning and 947.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:33:29,792 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.60 ms. Allocated memory is still 1.0 GB. Free memory was 947.9 MB in the beginning and 942.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2020-10-19 18:33:29,793 INFO L168 Benchmark]: Boogie Preprocessor took 72.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -182.4 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2020-10-19 18:33:29,794 INFO L168 Benchmark]: RCFGBuilder took 316.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2020-10-19 18:33:29,798 INFO L168 Benchmark]: TraceAbstraction took 15544.31 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 65.5 MB). Free memory was 1.1 GB in the beginning and 962.0 MB in the end (delta: 142.6 MB). Peak memory consumption was 208.1 MB. Max. memory is 11.5 GB. [2020-10-19 18:33:29,798 INFO L168 Benchmark]: Witness Printer took 70.79 ms. Allocated memory is still 1.2 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:33:29,804 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 252.51 ms. Allocated memory is still 1.0 GB. Free memory was 958.6 MB in the beginning and 947.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.60 ms. Allocated memory is still 1.0 GB. Free memory was 947.9 MB in the beginning and 942.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 72.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -182.4 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 316.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 15544.31 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 65.5 MB). Free memory was 1.1 GB in the beginning and 962.0 MB in the end (delta: 142.6 MB). Peak memory consumption was 208.1 MB. Max. memory is 11.5 GB. * Witness Printer took 70.79 ms. Allocated memory is still 1.2 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: x <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.3s, OverallIterations: 9, TraceHistogramMax: 5, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 113 SDtfs, 294 SDslu, 380 SDs, 0 SdLazy, 686 SolverSat, 104 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 7.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 228 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 20 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 10 PreInvPairs, 12 NumberOfFragments, 39 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 20 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 202 NumberOfCodeBlocks, 202 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 193 ConstructedInterpolants, 23 QuantifiedInterpolants, 40696 SizeOfPredicates, 25 NumberOfNonLiveVariables, 547 ConjunctsInSsa, 84 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 99/149 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...