./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/memsafety-ext3/getNumbers2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/memsafety-ext3/getNumbers2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e872a0dffbf376eb2d8b1e3516401a8dafe115a6 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:24:03,366 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:24:03,369 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:24:03,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:24:03,405 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:24:03,414 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:24:03,416 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:24:03,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:24:03,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:24:03,426 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:24:03,427 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:24:03,428 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:24:03,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:24:03,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:24:03,434 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:24:03,436 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:24:03,438 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:24:03,439 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:24:03,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:24:03,448 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:24:03,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:24:03,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:24:03,453 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:24:03,454 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:24:03,465 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:24:03,466 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:24:03,466 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:24:03,467 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:24:03,468 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:24:03,469 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:24:03,469 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:24:03,470 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:24:03,471 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:24:03,472 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:24:03,473 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:24:03,473 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:24:03,474 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:24:03,474 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:24:03,475 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:24:03,475 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:24:03,477 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:24:03,478 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-19 18:24:03,519 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:24:03,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:24:03,521 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:24:03,521 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:24:03,521 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:24:03,522 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:24:03,522 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 18:24:03,522 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:24:03,523 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:24:03,523 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 18:24:03,524 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:24:03,525 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 18:24:03,525 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 18:24:03,525 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 18:24:03,526 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:24:03,526 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 18:24:03,526 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 18:24:03,527 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:24:03,527 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:24:03,527 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:24:03,527 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:24:03,528 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:24:03,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:24:03,528 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:24:03,528 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:24:03,529 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:24:03,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 18:24:03,529 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:24:03,530 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e872a0dffbf376eb2d8b1e3516401a8dafe115a6 [2020-10-19 18:24:03,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:24:03,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:24:03,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:24:03,851 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:24:03,852 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:24:03,852 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext3/getNumbers2.c [2020-10-19 18:24:03,925 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59d072fae/9e972046a8ae42a39f8c50c31f6ee94f/FLAG94a5d3eda [2020-10-19 18:24:04,334 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:24:04,335 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety-ext3/getNumbers2.c [2020-10-19 18:24:04,341 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59d072fae/9e972046a8ae42a39f8c50c31f6ee94f/FLAG94a5d3eda [2020-10-19 18:24:04,355 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59d072fae/9e972046a8ae42a39f8c50c31f6ee94f [2020-10-19 18:24:04,357 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:24:04,364 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 18:24:04,365 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:24:04,365 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:24:04,369 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:24:04,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:24:04" (1/1) ... [2020-10-19 18:24:04,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69f2cc71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:24:04, skipping insertion in model container [2020-10-19 18:24:04,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:24:04" (1/1) ... [2020-10-19 18:24:04,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:24:04,398 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:24:04,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:24:04,570 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:24:04,584 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:24:04,601 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:24:04,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:24:04 WrapperNode [2020-10-19 18:24:04,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:24:04,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:24:04,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:24:04,603 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:24:04,674 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:24:04" (1/1) ... [2020-10-19 18:24:04,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:24:04" (1/1) ... [2020-10-19 18:24:04,682 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:24:04" (1/1) ... [2020-10-19 18:24:04,682 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:24:04" (1/1) ... [2020-10-19 18:24:04,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:24:04" (1/1) ... [2020-10-19 18:24:04,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:24:04" (1/1) ... [2020-10-19 18:24:04,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:24:04" (1/1) ... [2020-10-19 18:24:04,698 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:24:04,698 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:24:04,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:24:04,699 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:24:04,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:24:04" (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 18:24:04,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-19 18:24:04,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:24:04,753 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers [2020-10-19 18:24:04,754 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers2 [2020-10-19 18:24:04,754 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-19 18:24:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers [2020-10-19 18:24:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 18:24:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers2 [2020-10-19 18:24:04,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:24:04,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 18:24:04,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 18:24:04,755 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-19 18:24:04,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-19 18:24:04,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:24:05,077 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:24:05,078 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-19 18:24:05,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:24:05 BoogieIcfgContainer [2020-10-19 18:24:05,081 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:24:05,082 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:24:05,084 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:24:05,087 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:24:05,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:24:04" (1/3) ... [2020-10-19 18:24:05,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c5c49b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:24:05, skipping insertion in model container [2020-10-19 18:24:05,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:24:04" (2/3) ... [2020-10-19 18:24:05,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c5c49b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:24:05, skipping insertion in model container [2020-10-19 18:24:05,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:24:05" (3/3) ... [2020-10-19 18:24:05,097 INFO L111 eAbstractionObserver]: Analyzing ICFG getNumbers2.c [2020-10-19 18:24:05,110 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:24:05,121 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2020-10-19 18:24:05,134 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2020-10-19 18:24:05,151 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:24:05,151 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-19 18:24:05,151 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:24:05,151 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:24:05,151 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:24:05,151 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:24:05,152 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:24:05,152 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:24:05,166 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-10-19 18:24:05,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-19 18:24:05,174 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:05,175 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:05,175 INFO L429 AbstractCegarLoop]: === Iteration 1 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:05,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:05,180 INFO L82 PathProgramCache]: Analyzing trace with hash -262167437, now seen corresponding path program 1 times [2020-10-19 18:24:05,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:05,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716594987] [2020-10-19 18:24:05,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:05,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:05,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:05,466 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 18:24:05,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716594987] [2020-10-19 18:24:05,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:24:05,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:24:05,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77314456] [2020-10-19 18:24:05,476 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:24:05,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:05,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:24:05,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:24:05,495 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 5 states. [2020-10-19 18:24:05,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:05,736 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2020-10-19 18:24:05,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 18:24:05,738 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-19 18:24:05,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:05,747 INFO L225 Difference]: With dead ends: 43 [2020-10-19 18:24:05,748 INFO L226 Difference]: Without dead ends: 40 [2020-10-19 18:24:05,750 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-19 18:24:05,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-19 18:24:05,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2020-10-19 18:24:05,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-19 18:24:05,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2020-10-19 18:24:05,788 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 10 [2020-10-19 18:24:05,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:05,788 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2020-10-19 18:24:05,788 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:24:05,788 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2020-10-19 18:24:05,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-19 18:24:05,789 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:05,789 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:05,789 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 18:24:05,790 INFO L429 AbstractCegarLoop]: === Iteration 2 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:05,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:05,790 INFO L82 PathProgramCache]: Analyzing trace with hash -262167438, now seen corresponding path program 1 times [2020-10-19 18:24:05,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:05,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948686786] [2020-10-19 18:24:05,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:05,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:05,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:05,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:05,868 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 18:24:05,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948686786] [2020-10-19 18:24:05,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:24:05,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 18:24:05,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770091132] [2020-10-19 18:24:05,880 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:24:05,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:05,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:24:05,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:24:05,882 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand 4 states. [2020-10-19 18:24:05,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:05,987 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2020-10-19 18:24:05,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:24:05,988 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-19 18:24:05,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:05,989 INFO L225 Difference]: With dead ends: 37 [2020-10-19 18:24:05,989 INFO L226 Difference]: Without dead ends: 37 [2020-10-19 18:24:05,990 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 18:24:05,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-19 18:24:05,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-19 18:24:05,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-19 18:24:05,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2020-10-19 18:24:05,997 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 10 [2020-10-19 18:24:05,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:05,997 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2020-10-19 18:24:05,998 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:24:05,998 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2020-10-19 18:24:05,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-19 18:24:05,998 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:05,999 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:05,999 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 18:24:05,999 INFO L429 AbstractCegarLoop]: === Iteration 3 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:06,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:06,000 INFO L82 PathProgramCache]: Analyzing trace with hash -1979581628, now seen corresponding path program 1 times [2020-10-19 18:24:06,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:06,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090493563] [2020-10-19 18:24:06,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:06,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:06,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:06,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:06,123 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:06,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090493563] [2020-10-19 18:24:06,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1085747989] [2020-10-19 18:24:06,124 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 18:24:06,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:06,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-19 18:24:06,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:06,243 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-19 18:24:06,243 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:24:06,250 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:24:06,250 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:24:06,251 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-19 18:24:06,291 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:06,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:24:06,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-10-19 18:24:06,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283468962] [2020-10-19 18:24:06,293 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-19 18:24:06,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:06,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 18:24:06,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-19 18:24:06,294 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 7 states. [2020-10-19 18:24:06,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:06,460 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2020-10-19 18:24:06,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-19 18:24:06,461 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-10-19 18:24:06,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:06,462 INFO L225 Difference]: With dead ends: 41 [2020-10-19 18:24:06,462 INFO L226 Difference]: Without dead ends: 41 [2020-10-19 18:24:06,463 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-19 18:24:06,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-19 18:24:06,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2020-10-19 18:24:06,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-19 18:24:06,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2020-10-19 18:24:06,469 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 13 [2020-10-19 18:24:06,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:06,470 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2020-10-19 18:24:06,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-19 18:24:06,470 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2020-10-19 18:24:06,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-19 18:24:06,471 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:06,471 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:06,683 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-19 18:24:06,684 INFO L429 AbstractCegarLoop]: === Iteration 4 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:06,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:06,686 INFO L82 PathProgramCache]: Analyzing trace with hash 479651539, now seen corresponding path program 2 times [2020-10-19 18:24:06,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:06,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215279095] [2020-10-19 18:24:06,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:06,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:06,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:06,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:06,889 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:06,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215279095] [2020-10-19 18:24:06,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907640550] [2020-10-19 18:24:06,890 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:06,947 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-19 18:24:06,947 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 18:24:06,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-19 18:24:06,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:06,975 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-19 18:24:06,975 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:24:06,980 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:24:06,980 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:24:06,981 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-19 18:24:07,102 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:07,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 18:24:07,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 10 [2020-10-19 18:24:07,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853387710] [2020-10-19 18:24:07,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-19 18:24:07,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:07,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 18:24:07,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-10-19 18:24:07,105 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 7 states. [2020-10-19 18:24:07,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:07,193 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2020-10-19 18:24:07,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 18:24:07,193 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-10-19 18:24:07,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:07,195 INFO L225 Difference]: With dead ends: 40 [2020-10-19 18:24:07,195 INFO L226 Difference]: Without dead ends: 40 [2020-10-19 18:24:07,196 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-10-19 18:24:07,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-19 18:24:07,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2020-10-19 18:24:07,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-19 18:24:07,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-10-19 18:24:07,201 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 16 [2020-10-19 18:24:07,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:07,202 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-10-19 18:24:07,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-19 18:24:07,203 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-10-19 18:24:07,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-19 18:24:07,204 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:07,204 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:07,416 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:07,417 INFO L429 AbstractCegarLoop]: === Iteration 5 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:07,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:07,417 INFO L82 PathProgramCache]: Analyzing trace with hash -680983352, now seen corresponding path program 1 times [2020-10-19 18:24:07,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:07,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794077818] [2020-10-19 18:24:07,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:07,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:07,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:07,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:07,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:24:07,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:07,529 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:07,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794077818] [2020-10-19 18:24:07,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857578326] [2020-10-19 18:24:07,530 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 18:24:07,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:07,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:24:07,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:07,600 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:07,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:24:07,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 7 [2020-10-19 18:24:07,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600381756] [2020-10-19 18:24:07,601 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-19 18:24:07,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:07,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 18:24:07,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-19 18:24:07,603 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 7 states. [2020-10-19 18:24:07,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:07,700 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2020-10-19 18:24:07,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 18:24:07,700 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-10-19 18:24:07,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:07,702 INFO L225 Difference]: With dead ends: 43 [2020-10-19 18:24:07,702 INFO L226 Difference]: Without dead ends: 43 [2020-10-19 18:24:07,702 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-19 18:24:07,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-19 18:24:07,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2020-10-19 18:24:07,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-19 18:24:07,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2020-10-19 18:24:07,707 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 21 [2020-10-19 18:24:07,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:07,707 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2020-10-19 18:24:07,708 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-19 18:24:07,708 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2020-10-19 18:24:07,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-19 18:24:07,709 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:07,709 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:07,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:07,919 INFO L429 AbstractCegarLoop]: === Iteration 6 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:07,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:07,920 INFO L82 PathProgramCache]: Analyzing trace with hash 974975319, now seen corresponding path program 2 times [2020-10-19 18:24:07,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:07,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304843177] [2020-10-19 18:24:07,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:07,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:07,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:07,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:07,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:24:07,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:08,001 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:08,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304843177] [2020-10-19 18:24:08,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458106231] [2020-10-19 18:24:08,002 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 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 18:24:08,046 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-19 18:24:08,046 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 18:24:08,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 13 conjunts are in the unsatisfiable core [2020-10-19 18:24:08,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:08,071 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:24:08,072 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2020-10-19 18:24:08,073 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:24:08,090 INFO L625 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2020-10-19 18:24:08,091 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:24:08,091 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:9, output treesize:15 [2020-10-19 18:24:08,166 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-19 18:24:08,218 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:24:08,218 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2020-10-19 18:24:08,220 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:24:08,265 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:24:08,266 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 17 treesize of output 58 [2020-10-19 18:24:08,268 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-19 18:24:08,322 INFO L625 ElimStorePlain]: treesize reduction 42, result has 45.5 percent of original size [2020-10-19 18:24:08,324 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 18:24:08,326 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2020-10-19 18:24:08,326 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:33, output treesize:35 [2020-10-19 18:24:08,328 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 18:24:08,371 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 18:24:08,408 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-19 18:24:08,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 18:24:08,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 12 [2020-10-19 18:24:08,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293434914] [2020-10-19 18:24:08,410 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 18:24:08,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:08,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:24:08,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-19 18:24:08,410 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 6 states. [2020-10-19 18:24:08,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:08,551 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2020-10-19 18:24:08,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:24:08,552 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-10-19 18:24:08,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:08,552 INFO L225 Difference]: With dead ends: 40 [2020-10-19 18:24:08,553 INFO L226 Difference]: Without dead ends: 40 [2020-10-19 18:24:08,554 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-10-19 18:24:08,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-19 18:24:08,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-10-19 18:24:08,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-19 18:24:08,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2020-10-19 18:24:08,560 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 24 [2020-10-19 18:24:08,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:08,561 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2020-10-19 18:24:08,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 18:24:08,561 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2020-10-19 18:24:08,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-19 18:24:08,562 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:08,562 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:08,770 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:08,771 INFO L429 AbstractCegarLoop]: === Iteration 7 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:08,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:08,771 INFO L82 PathProgramCache]: Analyzing trace with hash 974975320, now seen corresponding path program 1 times [2020-10-19 18:24:08,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:08,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858561816] [2020-10-19 18:24:08,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:08,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:08,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:08,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:08,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:24:08,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:08,844 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:08,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858561816] [2020-10-19 18:24:08,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524593108] [2020-10-19 18:24:08,845 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 [2020-10-19 18:24:08,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:08,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 18:24:08,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:08,923 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:08,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:24:08,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 8 [2020-10-19 18:24:08,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904859398] [2020-10-19 18:24:08,925 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-19 18:24:08,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:08,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-19 18:24:08,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-19 18:24:08,926 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 8 states. [2020-10-19 18:24:09,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:09,032 INFO L93 Difference]: Finished difference Result 45 states and 46 transitions. [2020-10-19 18:24:09,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-19 18:24:09,033 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24 [2020-10-19 18:24:09,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:09,033 INFO L225 Difference]: With dead ends: 45 [2020-10-19 18:24:09,034 INFO L226 Difference]: Without dead ends: 45 [2020-10-19 18:24:09,034 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-19 18:24:09,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-19 18:24:09,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2020-10-19 18:24:09,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-19 18:24:09,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2020-10-19 18:24:09,039 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 24 [2020-10-19 18:24:09,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:09,039 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2020-10-19 18:24:09,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-19 18:24:09,039 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2020-10-19 18:24:09,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-19 18:24:09,040 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:09,040 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:09,250 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-10-19 18:24:09,251 INFO L429 AbstractCegarLoop]: === Iteration 8 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:09,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:09,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1645381225, now seen corresponding path program 2 times [2020-10-19 18:24:09,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:09,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051199053] [2020-10-19 18:24:09,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:09,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:09,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:09,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:09,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:24:09,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:09,375 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:09,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051199053] [2020-10-19 18:24:09,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975294931] [2020-10-19 18:24:09,376 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 18:24:09,422 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-19 18:24:09,422 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 18:24:09,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 23 conjunts are in the unsatisfiable core [2020-10-19 18:24:09,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:09,435 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-19 18:24:09,435 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:24:09,439 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:24:09,440 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:24:09,440 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-19 18:24:09,520 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:24:09,520 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2020-10-19 18:24:09,522 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:24:09,543 INFO L625 ElimStorePlain]: treesize reduction 14, result has 54.8 percent of original size [2020-10-19 18:24:09,544 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-19 18:24:09,545 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:17 [2020-10-19 18:24:09,573 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-19 18:24:09,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 18:24:09,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2020-10-19 18:24:09,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923697343] [2020-10-19 18:24:09,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 18:24:09,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:09,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:24:09,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-19 18:24:09,576 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand 6 states. [2020-10-19 18:24:09,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:09,698 INFO L93 Difference]: Finished difference Result 50 states and 51 transitions. [2020-10-19 18:24:09,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:24:09,698 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-10-19 18:24:09,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:09,699 INFO L225 Difference]: With dead ends: 50 [2020-10-19 18:24:09,699 INFO L226 Difference]: Without dead ends: 50 [2020-10-19 18:24:09,701 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2020-10-19 18:24:09,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-19 18:24:09,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 45. [2020-10-19 18:24:09,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-19 18:24:09,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2020-10-19 18:24:09,708 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 27 [2020-10-19 18:24:09,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:09,709 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2020-10-19 18:24:09,709 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 18:24:09,709 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2020-10-19 18:24:09,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-19 18:24:09,710 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:09,710 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:09,920 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:09,921 INFO L429 AbstractCegarLoop]: === Iteration 9 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:09,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:09,922 INFO L82 PathProgramCache]: Analyzing trace with hash -532789623, now seen corresponding path program 1 times [2020-10-19 18:24:09,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:09,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72037407] [2020-10-19 18:24:09,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:09,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:09,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:09,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:09,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:24:09,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:09,976 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-19 18:24:09,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72037407] [2020-10-19 18:24:09,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:24:09,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 18:24:09,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106463028] [2020-10-19 18:24:09,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:24:09,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:09,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:24:09,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:24:09,978 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 5 states. [2020-10-19 18:24:10,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:10,036 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2020-10-19 18:24:10,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:24:10,037 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-10-19 18:24:10,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:10,038 INFO L225 Difference]: With dead ends: 44 [2020-10-19 18:24:10,038 INFO L226 Difference]: Without dead ends: 44 [2020-10-19 18:24:10,038 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:24:10,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-19 18:24:10,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-10-19 18:24:10,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-19 18:24:10,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 45 transitions. [2020-10-19 18:24:10,043 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 45 transitions. Word has length 28 [2020-10-19 18:24:10,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:10,043 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 45 transitions. [2020-10-19 18:24:10,043 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:24:10,043 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2020-10-19 18:24:10,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-19 18:24:10,044 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:10,045 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:10,045 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-19 18:24:10,045 INFO L429 AbstractCegarLoop]: === Iteration 10 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:10,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:10,046 INFO L82 PathProgramCache]: Analyzing trace with hash -532789622, now seen corresponding path program 1 times [2020-10-19 18:24:10,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:10,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968978182] [2020-10-19 18:24:10,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:10,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:10,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:10,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:10,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:24:10,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:10,129 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:10,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968978182] [2020-10-19 18:24:10,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980617540] [2020-10-19 18:24:10,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-10-19 18:24:10,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:10,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-19 18:24:10,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:10,192 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:10,193 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:24:10,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 9 [2020-10-19 18:24:10,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223842983] [2020-10-19 18:24:10,194 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-19 18:24:10,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:10,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-19 18:24:10,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-19 18:24:10,195 INFO L87 Difference]: Start difference. First operand 44 states and 45 transitions. Second operand 9 states. [2020-10-19 18:24:10,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:10,297 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-10-19 18:24:10,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-19 18:24:10,298 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2020-10-19 18:24:10,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:10,298 INFO L225 Difference]: With dead ends: 49 [2020-10-19 18:24:10,299 INFO L226 Difference]: Without dead ends: 49 [2020-10-19 18:24:10,299 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-10-19 18:24:10,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-19 18:24:10,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 47. [2020-10-19 18:24:10,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-19 18:24:10,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2020-10-19 18:24:10,303 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 28 [2020-10-19 18:24:10,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:10,304 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2020-10-19 18:24:10,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-19 18:24:10,304 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2020-10-19 18:24:10,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-19 18:24:10,305 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:10,305 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:10,515 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-10-19 18:24:10,516 INFO L429 AbstractCegarLoop]: === Iteration 11 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:10,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:10,516 INFO L82 PathProgramCache]: Analyzing trace with hash 978381595, now seen corresponding path program 2 times [2020-10-19 18:24:10,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:10,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338674780] [2020-10-19 18:24:10,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:10,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:10,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:10,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:24:10,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:10,603 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:10,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338674780] [2020-10-19 18:24:10,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133650518] [2020-10-19 18:24:10,604 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) [2020-10-19 18:24:10,637 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-19 18:24:10,637 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:10,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-19 18:24:10,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:10,649 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-19 18:24:10,649 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:24:10,654 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:24:10,655 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:24:10,655 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2020-10-19 18:24:10,668 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-10-19 18:24:10,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 18:24:10,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [10] total 11 [2020-10-19 18:24:10,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576448545] [2020-10-19 18:24:10,669 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 18:24:10,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:10,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:24:10,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-19 18:24:10,670 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand 3 states. [2020-10-19 18:24:10,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:10,691 INFO L93 Difference]: Finished difference Result 50 states and 51 transitions. [2020-10-19 18:24:10,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:24:10,692 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2020-10-19 18:24:10,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:10,692 INFO L225 Difference]: With dead ends: 50 [2020-10-19 18:24:10,692 INFO L226 Difference]: Without dead ends: 50 [2020-10-19 18:24:10,693 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-19 18:24:10,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-19 18:24:10,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2020-10-19 18:24:10,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-19 18:24:10,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2020-10-19 18:24:10,697 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 31 [2020-10-19 18:24:10,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:10,697 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2020-10-19 18:24:10,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 18:24:10,697 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2020-10-19 18:24:10,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-19 18:24:10,698 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:10,698 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:10,906 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-10-19 18:24:10,907 INFO L429 AbstractCegarLoop]: === Iteration 12 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:10,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:10,908 INFO L82 PathProgramCache]: Analyzing trace with hash -2092158530, now seen corresponding path program 1 times [2020-10-19 18:24:10,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:10,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809660001] [2020-10-19 18:24:10,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:10,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:10,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:10,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:10,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:24:10,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:11,008 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-19 18:24:11,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809660001] [2020-10-19 18:24:11,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526320904] [2020-10-19 18:24:11,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-10-19 18:24:11,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:11,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 18:24:11,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:11,074 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-19 18:24:11,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:24:11,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 10 [2020-10-19 18:24:11,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347438131] [2020-10-19 18:24:11,076 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-19 18:24:11,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:11,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-19 18:24:11,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-19 18:24:11,076 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 10 states. [2020-10-19 18:24:11,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:11,181 INFO L93 Difference]: Finished difference Result 53 states and 54 transitions. [2020-10-19 18:24:11,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-19 18:24:11,181 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 35 [2020-10-19 18:24:11,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:11,182 INFO L225 Difference]: With dead ends: 53 [2020-10-19 18:24:11,182 INFO L226 Difference]: Without dead ends: 53 [2020-10-19 18:24:11,183 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-10-19 18:24:11,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-19 18:24:11,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 51. [2020-10-19 18:24:11,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-19 18:24:11,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2020-10-19 18:24:11,187 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 35 [2020-10-19 18:24:11,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:11,188 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2020-10-19 18:24:11,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-19 18:24:11,188 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2020-10-19 18:24:11,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-19 18:24:11,189 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:11,189 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:11,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:11,399 INFO L429 AbstractCegarLoop]: === Iteration 13 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:11,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:11,400 INFO L82 PathProgramCache]: Analyzing trace with hash 675510285, now seen corresponding path program 2 times [2020-10-19 18:24:11,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:11,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789241694] [2020-10-19 18:24:11,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:11,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:11,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:11,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:11,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:24:11,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:11,501 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-19 18:24:11,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789241694] [2020-10-19 18:24:11,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [632399989] [2020-10-19 18:24:11,502 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 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 [2020-10-19 18:24:11,555 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-19 18:24:11,555 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 18:24:11,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-19 18:24:11,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:11,576 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-19 18:24:11,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:24:11,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 11 [2020-10-19 18:24:11,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314038676] [2020-10-19 18:24:11,578 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-19 18:24:11,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:11,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-19 18:24:11,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-10-19 18:24:11,579 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand 11 states. [2020-10-19 18:24:11,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:11,677 INFO L93 Difference]: Finished difference Result 56 states and 57 transitions. [2020-10-19 18:24:11,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-19 18:24:11,678 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 38 [2020-10-19 18:24:11,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:11,679 INFO L225 Difference]: With dead ends: 56 [2020-10-19 18:24:11,679 INFO L226 Difference]: Without dead ends: 56 [2020-10-19 18:24:11,679 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-10-19 18:24:11,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-19 18:24:11,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2020-10-19 18:24:11,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-19 18:24:11,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2020-10-19 18:24:11,684 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 38 [2020-10-19 18:24:11,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:11,685 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2020-10-19 18:24:11,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-19 18:24:11,685 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2020-10-19 18:24:11,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-19 18:24:11,686 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:11,687 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:11,898 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:11,899 INFO L429 AbstractCegarLoop]: === Iteration 14 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:11,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:11,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1809996638, now seen corresponding path program 3 times [2020-10-19 18:24:11,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:11,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846817690] [2020-10-19 18:24:11,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:11,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:11,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:11,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:11,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:24:11,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:12,026 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-19 18:24:12,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846817690] [2020-10-19 18:24:12,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104468211] [2020-10-19 18:24:12,029 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:12,071 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-10-19 18:24:12,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 18:24:12,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 25 conjunts are in the unsatisfiable core [2020-10-19 18:24:12,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:12,093 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-19 18:24:12,093 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:24:12,100 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:24:12,101 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:24:12,101 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-19 18:24:12,177 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:24:12,178 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2020-10-19 18:24:12,179 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:24:12,204 INFO L625 ElimStorePlain]: treesize reduction 14, result has 54.8 percent of original size [2020-10-19 18:24:12,205 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-19 18:24:12,206 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:17 [2020-10-19 18:24:12,259 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-19 18:24:12,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:24:12,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6] total 17 [2020-10-19 18:24:12,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62176406] [2020-10-19 18:24:12,261 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-19 18:24:12,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:12,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-19 18:24:12,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2020-10-19 18:24:12,262 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 17 states. [2020-10-19 18:24:12,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:12,760 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-10-19 18:24:12,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-19 18:24:12,761 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 41 [2020-10-19 18:24:12,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:12,761 INFO L225 Difference]: With dead ends: 67 [2020-10-19 18:24:12,762 INFO L226 Difference]: Without dead ends: 67 [2020-10-19 18:24:12,762 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=188, Invalid=682, Unknown=0, NotChecked=0, Total=870 [2020-10-19 18:24:12,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-10-19 18:24:12,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 61. [2020-10-19 18:24:12,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-10-19 18:24:12,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 62 transitions. [2020-10-19 18:24:12,766 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 62 transitions. Word has length 41 [2020-10-19 18:24:12,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:12,767 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 62 transitions. [2020-10-19 18:24:12,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-19 18:24:12,767 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 62 transitions. [2020-10-19 18:24:12,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-19 18:24:12,768 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:12,768 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:12,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-10-19 18:24:12,979 INFO L429 AbstractCegarLoop]: === Iteration 15 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:12,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:12,980 INFO L82 PathProgramCache]: Analyzing trace with hash -665591034, now seen corresponding path program 1 times [2020-10-19 18:24:12,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:12,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533975341] [2020-10-19 18:24:12,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:12,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:13,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:13,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:13,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:24:13,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:13,100 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-19 18:24:13,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533975341] [2020-10-19 18:24:13,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907190829] [2020-10-19 18:24:13,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:13,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:13,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-19 18:24:13,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:13,172 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-19 18:24:13,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:24:13,172 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 13 [2020-10-19 18:24:13,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988021146] [2020-10-19 18:24:13,173 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-19 18:24:13,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:13,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-19 18:24:13,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2020-10-19 18:24:13,174 INFO L87 Difference]: Start difference. First operand 61 states and 62 transitions. Second operand 13 states. [2020-10-19 18:24:13,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:13,276 INFO L93 Difference]: Finished difference Result 66 states and 67 transitions. [2020-10-19 18:24:13,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-19 18:24:13,277 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 45 [2020-10-19 18:24:13,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:13,277 INFO L225 Difference]: With dead ends: 66 [2020-10-19 18:24:13,277 INFO L226 Difference]: Without dead ends: 66 [2020-10-19 18:24:13,278 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=73, Invalid=109, Unknown=0, NotChecked=0, Total=182 [2020-10-19 18:24:13,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-19 18:24:13,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2020-10-19 18:24:13,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-10-19 18:24:13,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 65 transitions. [2020-10-19 18:24:13,282 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 65 transitions. Word has length 45 [2020-10-19 18:24:13,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:13,282 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 65 transitions. [2020-10-19 18:24:13,282 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-19 18:24:13,282 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 65 transitions. [2020-10-19 18:24:13,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-19 18:24:13,283 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:13,283 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:13,493 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-10-19 18:24:13,494 INFO L429 AbstractCegarLoop]: === Iteration 16 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:13,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:13,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1878971029, now seen corresponding path program 2 times [2020-10-19 18:24:13,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:13,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761619052] [2020-10-19 18:24:13,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:13,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:13,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:13,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:13,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:24:13,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:13,651 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-19 18:24:13,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761619052] [2020-10-19 18:24:13,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982230954] [2020-10-19 18:24:13,652 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:13,709 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-19 18:24:13,710 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 18:24:13,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-19 18:24:13,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:13,776 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-19 18:24:13,776 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:24:13,784 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:24:13,785 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:24:13,785 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2020-10-19 18:24:13,878 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2020-10-19 18:24:13,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:24:13,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 7] total 20 [2020-10-19 18:24:13,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024884839] [2020-10-19 18:24:13,880 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-19 18:24:13,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:13,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-19 18:24:13,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2020-10-19 18:24:13,882 INFO L87 Difference]: Start difference. First operand 64 states and 65 transitions. Second operand 20 states. [2020-10-19 18:24:14,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:14,444 INFO L93 Difference]: Finished difference Result 66 states and 67 transitions. [2020-10-19 18:24:14,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-19 18:24:14,444 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 48 [2020-10-19 18:24:14,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:14,445 INFO L225 Difference]: With dead ends: 66 [2020-10-19 18:24:14,445 INFO L226 Difference]: Without dead ends: 66 [2020-10-19 18:24:14,446 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=268, Invalid=992, Unknown=0, NotChecked=0, Total=1260 [2020-10-19 18:24:14,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-19 18:24:14,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-10-19 18:24:14,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-19 18:24:14,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2020-10-19 18:24:14,450 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 48 [2020-10-19 18:24:14,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:14,450 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2020-10-19 18:24:14,451 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-19 18:24:14,451 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2020-10-19 18:24:14,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-19 18:24:14,452 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:14,452 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:14,660 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-10-19 18:24:14,660 INFO L429 AbstractCegarLoop]: === Iteration 17 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:14,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:14,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1831341513, now seen corresponding path program 4 times [2020-10-19 18:24:14,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:14,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290432048] [2020-10-19 18:24:14,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:14,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:14,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:14,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:14,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:24:14,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:14,912 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 19 proven. 9 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-10-19 18:24:14,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290432048] [2020-10-19 18:24:14,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251219485] [2020-10-19 18:24:14,913 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:14,995 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-19 18:24:14,995 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 18:24:14,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 33 conjunts are in the unsatisfiable core [2020-10-19 18:24:14,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:15,006 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-19 18:24:15,006 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:24:15,008 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:24:15,008 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:24:15,008 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-19 18:24:15,406 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:24:15,406 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 36 [2020-10-19 18:24:15,407 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:24:15,429 INFO L625 ElimStorePlain]: treesize reduction 14, result has 63.2 percent of original size [2020-10-19 18:24:15,431 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-19 18:24:15,431 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:28, output treesize:23 [2020-10-19 18:24:15,559 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 126 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:24:15,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:24:15,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 19] total 27 [2020-10-19 18:24:15,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158894692] [2020-10-19 18:24:15,561 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-19 18:24:15,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:15,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-19 18:24:15,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=637, Unknown=0, NotChecked=0, Total=756 [2020-10-19 18:24:15,562 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand 28 states. [2020-10-19 18:24:16,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:16,658 INFO L93 Difference]: Finished difference Result 74 states and 75 transitions. [2020-10-19 18:24:16,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-19 18:24:16,659 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 55 [2020-10-19 18:24:16,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:16,660 INFO L225 Difference]: With dead ends: 74 [2020-10-19 18:24:16,660 INFO L226 Difference]: Without dead ends: 74 [2020-10-19 18:24:16,661 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=381, Invalid=1689, Unknown=0, NotChecked=0, Total=2070 [2020-10-19 18:24:16,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-19 18:24:16,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 71. [2020-10-19 18:24:16,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-19 18:24:16,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 72 transitions. [2020-10-19 18:24:16,670 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 72 transitions. Word has length 55 [2020-10-19 18:24:16,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:16,671 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 72 transitions. [2020-10-19 18:24:16,672 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-19 18:24:16,672 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 72 transitions. [2020-10-19 18:24:16,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-19 18:24:16,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:16,675 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:16,878 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:16,879 INFO L429 AbstractCegarLoop]: === Iteration 18 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:16,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:16,880 INFO L82 PathProgramCache]: Analyzing trace with hash 256397901, now seen corresponding path program 5 times [2020-10-19 18:24:16,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:16,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144489408] [2020-10-19 18:24:16,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:16,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:17,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:17,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:17,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:24:17,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:17,139 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 19 proven. 21 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-10-19 18:24:17,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144489408] [2020-10-19 18:24:17,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434683199] [2020-10-19 18:24:17,140 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:17,325 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2020-10-19 18:24:17,325 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 18:24:17,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 35 conjunts are in the unsatisfiable core [2020-10-19 18:24:17,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:17,335 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-19 18:24:17,335 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:24:17,340 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:24:17,354 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:24:17,354 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2020-10-19 18:24:17,355 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-19 18:24:17,376 INFO L625 ElimStorePlain]: treesize reduction 10, result has 69.7 percent of original size [2020-10-19 18:24:17,376 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:24:17,376 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:23 [2020-10-19 18:24:17,478 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-19 18:24:17,487 INFO L441 ElimStorePlain]: Different costs {1=[|v_#length_30|], 3=[|v_#valid_27|]} [2020-10-19 18:24:17,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-19 18:24:17,501 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2020-10-19 18:24:17,502 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:24:17,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-19 18:24:17,510 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2020-10-19 18:24:17,511 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-19 18:24:17,541 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:24:17,565 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:24:17,565 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 34 [2020-10-19 18:24:17,567 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-19 18:24:17,568 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 18:24:17,570 INFO L545 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-10-19 18:24:17,577 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:24:17,578 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2020-10-19 18:24:17,579 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 18:24:17,580 INFO L545 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-10-19 18:24:17,610 INFO L625 ElimStorePlain]: treesize reduction 29, result has 42.0 percent of original size [2020-10-19 18:24:17,611 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-19 18:24:17,611 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:65, output treesize:21 [2020-10-19 18:24:17,775 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-10-19 18:24:17,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:24:17,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 18 [2020-10-19 18:24:17,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259617035] [2020-10-19 18:24:17,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-19 18:24:17,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:17,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-19 18:24:17,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2020-10-19 18:24:17,777 INFO L87 Difference]: Start difference. First operand 71 states and 72 transitions. Second operand 19 states. [2020-10-19 18:24:18,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:18,281 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-10-19 18:24:18,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-19 18:24:18,284 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 60 [2020-10-19 18:24:18,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:18,284 INFO L225 Difference]: With dead ends: 79 [2020-10-19 18:24:18,284 INFO L226 Difference]: Without dead ends: 79 [2020-10-19 18:24:18,285 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=510, Unknown=0, NotChecked=0, Total=600 [2020-10-19 18:24:18,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-10-19 18:24:18,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 76. [2020-10-19 18:24:18,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-10-19 18:24:18,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 77 transitions. [2020-10-19 18:24:18,288 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 77 transitions. Word has length 60 [2020-10-19 18:24:18,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:18,288 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 77 transitions. [2020-10-19 18:24:18,288 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-19 18:24:18,288 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 77 transitions. [2020-10-19 18:24:18,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-19 18:24:18,289 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:18,289 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:18,493 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-10-19 18:24:18,494 INFO L429 AbstractCegarLoop]: === Iteration 19 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:18,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:18,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1410187191, now seen corresponding path program 6 times [2020-10-19 18:24:18,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:18,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006791408] [2020-10-19 18:24:18,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:18,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:18,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:18,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:18,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-19 18:24:18,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:18,730 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 19 proven. 38 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-10-19 18:24:18,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006791408] [2020-10-19 18:24:18,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502333573] [2020-10-19 18:24:18,730 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:18,779 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2020-10-19 18:24:18,779 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 18:24:18,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 20 conjunts are in the unsatisfiable core [2020-10-19 18:24:18,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:18,788 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-19 18:24:18,789 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:24:18,793 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:24:18,793 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:24:18,793 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-19 18:24:18,877 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:24:18,877 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2020-10-19 18:24:18,878 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:24:18,892 INFO L625 ElimStorePlain]: treesize reduction 14, result has 50.0 percent of original size [2020-10-19 18:24:18,893 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-19 18:24:18,894 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:14 [2020-10-19 18:24:19,015 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2020-10-19 18:24:19,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 18:24:19,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 19 [2020-10-19 18:24:19,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309540750] [2020-10-19 18:24:19,016 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-19 18:24:19,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:19,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-19 18:24:19,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2020-10-19 18:24:19,017 INFO L87 Difference]: Start difference. First operand 76 states and 77 transitions. Second operand 9 states. [2020-10-19 18:24:19,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:19,222 INFO L93 Difference]: Finished difference Result 75 states and 76 transitions. [2020-10-19 18:24:19,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-19 18:24:19,222 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2020-10-19 18:24:19,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:19,223 INFO L225 Difference]: With dead ends: 75 [2020-10-19 18:24:19,223 INFO L226 Difference]: Without dead ends: 75 [2020-10-19 18:24:19,224 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=82, Invalid=518, Unknown=0, NotChecked=0, Total=600 [2020-10-19 18:24:19,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-10-19 18:24:19,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 74. [2020-10-19 18:24:19,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-19 18:24:19,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 75 transitions. [2020-10-19 18:24:19,226 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 75 transitions. Word has length 65 [2020-10-19 18:24:19,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:19,227 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 75 transitions. [2020-10-19 18:24:19,227 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-19 18:24:19,227 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 75 transitions. [2020-10-19 18:24:19,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-19 18:24:19,227 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:19,228 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:19,430 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:19,431 INFO L429 AbstractCegarLoop]: === Iteration 20 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:19,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:19,431 INFO L82 PathProgramCache]: Analyzing trace with hash -368674019, now seen corresponding path program 1 times [2020-10-19 18:24:19,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:19,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164787261] [2020-10-19 18:24:19,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:19,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:19,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:19,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:19,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-19 18:24:19,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:19,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:19,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:19,566 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-10-19 18:24:19,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164787261] [2020-10-19 18:24:19,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057215225] [2020-10-19 18:24:19,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:19,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:19,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-19 18:24:19,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:19,654 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-10-19 18:24:19,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:24:19,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 10 [2020-10-19 18:24:19,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347228262] [2020-10-19 18:24:19,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-19 18:24:19,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:19,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-19 18:24:19,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-19 18:24:19,657 INFO L87 Difference]: Start difference. First operand 74 states and 75 transitions. Second operand 10 states. [2020-10-19 18:24:19,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:19,742 INFO L93 Difference]: Finished difference Result 83 states and 84 transitions. [2020-10-19 18:24:19,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-19 18:24:19,742 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 69 [2020-10-19 18:24:19,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:19,743 INFO L225 Difference]: With dead ends: 83 [2020-10-19 18:24:19,743 INFO L226 Difference]: Without dead ends: 83 [2020-10-19 18:24:19,743 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-19 18:24:19,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-10-19 18:24:19,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 79. [2020-10-19 18:24:19,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-19 18:24:19,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 80 transitions. [2020-10-19 18:24:19,746 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 80 transitions. Word has length 69 [2020-10-19 18:24:19,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:19,747 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 80 transitions. [2020-10-19 18:24:19,747 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-19 18:24:19,747 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 80 transitions. [2020-10-19 18:24:19,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-19 18:24:19,747 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:19,748 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:19,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:19,956 INFO L429 AbstractCegarLoop]: === Iteration 21 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:19,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:19,956 INFO L82 PathProgramCache]: Analyzing trace with hash -243103583, now seen corresponding path program 2 times [2020-10-19 18:24:19,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:19,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757048801] [2020-10-19 18:24:19,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:19,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:19,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:20,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-19 18:24:20,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:20,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:20,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:20,082 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-10-19 18:24:20,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757048801] [2020-10-19 18:24:20,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758840943] [2020-10-19 18:24:20,083 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 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:20,138 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-19 18:24:20,139 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 18:24:20,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 18:24:20,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:20,153 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-10-19 18:24:20,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:24:20,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 11 [2020-10-19 18:24:20,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265487724] [2020-10-19 18:24:20,154 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-19 18:24:20,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:20,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-19 18:24:20,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-19 18:24:20,155 INFO L87 Difference]: Start difference. First operand 79 states and 80 transitions. Second operand 11 states. [2020-10-19 18:24:20,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:20,250 INFO L93 Difference]: Finished difference Result 88 states and 89 transitions. [2020-10-19 18:24:20,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-19 18:24:20,251 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 74 [2020-10-19 18:24:20,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:20,252 INFO L225 Difference]: With dead ends: 88 [2020-10-19 18:24:20,252 INFO L226 Difference]: Without dead ends: 88 [2020-10-19 18:24:20,253 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-19 18:24:20,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-10-19 18:24:20,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 84. [2020-10-19 18:24:20,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-19 18:24:20,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 85 transitions. [2020-10-19 18:24:20,256 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 85 transitions. Word has length 74 [2020-10-19 18:24:20,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:20,256 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 85 transitions. [2020-10-19 18:24:20,256 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-19 18:24:20,256 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 85 transitions. [2020-10-19 18:24:20,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-19 18:24:20,257 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:20,257 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:20,458 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2020-10-19 18:24:20,459 INFO L429 AbstractCegarLoop]: === Iteration 22 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:20,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:20,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1204178333, now seen corresponding path program 3 times [2020-10-19 18:24:20,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:20,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488213994] [2020-10-19 18:24:20,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:20,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:20,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:20,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:20,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-19 18:24:20,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:20,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:20,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:20,599 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-10-19 18:24:20,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488213994] [2020-10-19 18:24:20,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300552151] [2020-10-19 18:24:20,600 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:20,727 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2020-10-19 18:24:20,727 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 18:24:20,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-19 18:24:20,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:20,744 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-10-19 18:24:20,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:24:20,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 12 [2020-10-19 18:24:20,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193710457] [2020-10-19 18:24:20,745 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-19 18:24:20,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:20,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-19 18:24:20,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-10-19 18:24:20,746 INFO L87 Difference]: Start difference. First operand 84 states and 85 transitions. Second operand 12 states. [2020-10-19 18:24:20,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:20,823 INFO L93 Difference]: Finished difference Result 93 states and 94 transitions. [2020-10-19 18:24:20,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-19 18:24:20,824 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 79 [2020-10-19 18:24:20,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:20,825 INFO L225 Difference]: With dead ends: 93 [2020-10-19 18:24:20,825 INFO L226 Difference]: Without dead ends: 93 [2020-10-19 18:24:20,826 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-10-19 18:24:20,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-19 18:24:20,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 89. [2020-10-19 18:24:20,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-10-19 18:24:20,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 90 transitions. [2020-10-19 18:24:20,829 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 90 transitions. Word has length 79 [2020-10-19 18:24:20,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:20,829 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 90 transitions. [2020-10-19 18:24:20,830 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-19 18:24:20,830 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 90 transitions. [2020-10-19 18:24:20,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-19 18:24:20,830 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:20,830 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:21,039 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:21,040 INFO L429 AbstractCegarLoop]: === Iteration 23 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:21,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:21,040 INFO L82 PathProgramCache]: Analyzing trace with hash -2025699807, now seen corresponding path program 4 times [2020-10-19 18:24:21,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:21,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642141319] [2020-10-19 18:24:21,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:21,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:21,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:21,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:21,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-19 18:24:21,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:21,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:21,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:21,217 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-10-19 18:24:21,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642141319] [2020-10-19 18:24:21,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379467376] [2020-10-19 18:24:21,218 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:21,706 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-19 18:24:21,707 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 18:24:21,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-19 18:24:21,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:21,741 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-10-19 18:24:21,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:24:21,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 13 [2020-10-19 18:24:21,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203280528] [2020-10-19 18:24:21,743 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-19 18:24:21,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:21,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-19 18:24:21,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-19 18:24:21,745 INFO L87 Difference]: Start difference. First operand 89 states and 90 transitions. Second operand 13 states. [2020-10-19 18:24:21,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:21,870 INFO L93 Difference]: Finished difference Result 98 states and 99 transitions. [2020-10-19 18:24:21,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-19 18:24:21,871 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 84 [2020-10-19 18:24:21,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:21,872 INFO L225 Difference]: With dead ends: 98 [2020-10-19 18:24:21,872 INFO L226 Difference]: Without dead ends: 98 [2020-10-19 18:24:21,873 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-19 18:24:21,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-19 18:24:21,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 94. [2020-10-19 18:24:21,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-10-19 18:24:21,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 95 transitions. [2020-10-19 18:24:21,879 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 95 transitions. Word has length 84 [2020-10-19 18:24:21,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:21,880 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 95 transitions. [2020-10-19 18:24:21,880 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-19 18:24:21,880 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 95 transitions. [2020-10-19 18:24:21,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-19 18:24:21,881 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:21,881 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:22,092 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2020-10-19 18:24:22,092 INFO L429 AbstractCegarLoop]: === Iteration 24 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:22,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:22,093 INFO L82 PathProgramCache]: Analyzing trace with hash -809435107, now seen corresponding path program 5 times [2020-10-19 18:24:22,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:22,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808682483] [2020-10-19 18:24:22,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:22,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:22,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:22,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:22,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-19 18:24:22,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:22,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:22,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:22,306 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-10-19 18:24:22,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808682483] [2020-10-19 18:24:22,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192302445] [2020-10-19 18:24:22,307 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:22,987 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2020-10-19 18:24:22,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 18:24:22,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-19 18:24:22,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:23,009 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-10-19 18:24:23,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:24:23,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 14 [2020-10-19 18:24:23,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3655110] [2020-10-19 18:24:23,010 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-19 18:24:23,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:23,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-19 18:24:23,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2020-10-19 18:24:23,010 INFO L87 Difference]: Start difference. First operand 94 states and 95 transitions. Second operand 14 states. [2020-10-19 18:24:23,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:23,110 INFO L93 Difference]: Finished difference Result 103 states and 104 transitions. [2020-10-19 18:24:23,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-19 18:24:23,110 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 89 [2020-10-19 18:24:23,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:23,112 INFO L225 Difference]: With dead ends: 103 [2020-10-19 18:24:23,112 INFO L226 Difference]: Without dead ends: 103 [2020-10-19 18:24:23,112 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2020-10-19 18:24:23,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-10-19 18:24:23,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 99. [2020-10-19 18:24:23,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-10-19 18:24:23,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 100 transitions. [2020-10-19 18:24:23,116 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 100 transitions. Word has length 89 [2020-10-19 18:24:23,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:23,116 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 100 transitions. [2020-10-19 18:24:23,116 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-19 18:24:23,116 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 100 transitions. [2020-10-19 18:24:23,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-19 18:24:23,117 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:23,117 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:23,325 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2020-10-19 18:24:23,326 INFO L429 AbstractCegarLoop]: === Iteration 25 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:23,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:23,326 INFO L82 PathProgramCache]: Analyzing trace with hash -2070731871, now seen corresponding path program 6 times [2020-10-19 18:24:23,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:23,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619207250] [2020-10-19 18:24:23,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:23,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:23,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:23,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:23,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-19 18:24:23,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:23,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:24:23,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:24:23,547 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-10-19 18:24:23,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619207250] [2020-10-19 18:24:23,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850989343] [2020-10-19 18:24:23,548 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:24,580 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2020-10-19 18:24:24,580 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 18:24:24,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-19 18:24:24,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:24:24,629 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-10-19 18:24:24,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:24:24,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12] total 15 [2020-10-19 18:24:24,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291554993] [2020-10-19 18:24:24,633 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-19 18:24:24,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:24:24,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-19 18:24:24,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2020-10-19 18:24:24,634 INFO L87 Difference]: Start difference. First operand 99 states and 100 transitions. Second operand 15 states. [2020-10-19 18:24:24,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:24:24,854 INFO L93 Difference]: Finished difference Result 104 states and 105 transitions. [2020-10-19 18:24:24,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-19 18:24:24,855 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 94 [2020-10-19 18:24:24,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:24:24,857 INFO L225 Difference]: With dead ends: 104 [2020-10-19 18:24:24,857 INFO L226 Difference]: Without dead ends: 104 [2020-10-19 18:24:24,858 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2020-10-19 18:24:24,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-10-19 18:24:24,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-10-19 18:24:24,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-19 18:24:24,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 105 transitions. [2020-10-19 18:24:24,863 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 105 transitions. Word has length 94 [2020-10-19 18:24:24,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:24:24,864 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 105 transitions. [2020-10-19 18:24:24,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-19 18:24:24,864 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 105 transitions. [2020-10-19 18:24:24,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-19 18:24:24,872 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:24:24,873 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:24:25,073 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:24:25,073 INFO L429 AbstractCegarLoop]: === Iteration 26 === [getNumbers2Err1REQUIRES_VIOLATION, getNumbers2Err0REQUIRES_VIOLATION, getNumbers2Err2REQUIRES_VIOLATION, getNumbers2Err3REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-19 18:24:25,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:24:25,074 INFO L82 PathProgramCache]: Analyzing trace with hash -1646357859, now seen corresponding path program 7 times [2020-10-19 18:24:25,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:24:25,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052059095] [2020-10-19 18:24:25,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:24:25,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:24:25,137 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:24:25,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:24:25,185 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:24:25,219 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:24:25,219 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 18:24:25,220 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-19 18:24:25,271 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 43 could not be translated for associated CType ARRAY#_10_~INT# [2020-10-19 18:24:25,271 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 44 could not be translated for associated CType ARRAY#_10_~INT# [2020-10-19 18:24:25,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:24:25 BoogieIcfgContainer [2020-10-19 18:24:25,299 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:24:25,300 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:24:25,300 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:24:25,300 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:24:25,301 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:24:05" (3/4) ... [2020-10-19 18:24:25,303 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-19 18:24:25,310 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 43 could not be translated for associated CType ARRAY#_10_~INT# [2020-10-19 18:24:25,310 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 44 could not be translated for associated CType ARRAY#_10_~INT# [2020-10-19 18:24:25,383 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 18:24:25,386 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:24:25,388 INFO L168 Benchmark]: Toolchain (without parser) took 21029.46 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 361.2 MB). Free memory was 958.6 MB in the beginning and 1.3 GB in the end (delta: -352.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. [2020-10-19 18:24:25,392 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:24:25,392 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.58 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 18:24:25,392 INFO L168 Benchmark]: Boogie Preprocessor took 95.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 947.9 MB in the beginning and 1.1 GB in the end (delta: -170.3 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2020-10-19 18:24:25,392 INFO L168 Benchmark]: RCFGBuilder took 382.79 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: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2020-10-19 18:24:25,393 INFO L168 Benchmark]: TraceAbstraction took 20217.03 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 231.7 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -214.2 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2020-10-19 18:24:25,393 INFO L168 Benchmark]: Witness Printer took 86.84 ms. Allocated memory is still 1.4 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:24:25,394 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 237.58 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 Preprocessor took 95.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 947.9 MB in the beginning and 1.1 GB in the end (delta: -170.3 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 382.79 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: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 20217.03 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 231.7 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -214.2 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * Witness Printer took 86.84 ms. Allocated memory is still 1.4 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 43 could not be translated for associated CType ARRAY#_10_~INT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 44 could not be translated for associated CType ARRAY#_10_~INT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 43 could not be translated for associated CType ARRAY#_10_~INT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 44 could not be translated for associated CType ARRAY#_10_~INT# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 26]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L1] int array[10]; VAL [\old(array)=null, \old(array)=null, array={11:0}] [L25] CALL, EXPR getNumbers2() VAL [array={11:0}] [L13] CALL, EXPR getNumbers() VAL [array={11:0}] [L5] int i = 0; VAL [array={11:0}, i=0] [L5] COND TRUE i < 10 VAL [array={11:0}, i=0] [L6] array[i] = i VAL [array={11:0}, i=0] [L5] ++i VAL [array={11:0}, i=1] [L5] COND TRUE i < 10 VAL [array={11:0}, i=1] [L6] array[i] = i VAL [array={11:0}, i=1] [L5] ++i VAL [array={11:0}, i=2] [L5] COND TRUE i < 10 VAL [array={11:0}, i=2] [L6] array[i] = i VAL [array={11:0}, i=2] [L5] ++i VAL [array={11:0}, i=3] [L5] COND TRUE i < 10 VAL [array={11:0}, i=3] [L6] array[i] = i VAL [array={11:0}, i=3] [L5] ++i VAL [array={11:0}, i=4] [L5] COND TRUE i < 10 VAL [array={11:0}, i=4] [L6] array[i] = i VAL [array={11:0}, i=4] [L5] ++i VAL [array={11:0}, i=5] [L5] COND TRUE i < 10 VAL [array={11:0}, i=5] [L6] array[i] = i VAL [array={11:0}, i=5] [L5] ++i VAL [array={11:0}, i=6] [L5] COND TRUE i < 10 VAL [array={11:0}, i=6] [L6] array[i] = i VAL [array={11:0}, i=6] [L5] ++i VAL [array={11:0}, i=7] [L5] COND TRUE i < 10 VAL [array={11:0}, i=7] [L6] array[i] = i VAL [array={11:0}, i=7] [L5] ++i VAL [array={11:0}, i=8] [L5] COND TRUE i < 10 VAL [array={11:0}, i=8] [L6] array[i] = i VAL [array={11:0}, i=8] [L5] ++i VAL [array={11:0}, i=9] [L5] COND TRUE i < 10 VAL [array={11:0}, i=9] [L6] array[i] = i VAL [array={11:0}, i=9] [L5] ++i VAL [array={11:0}, i=10] [L5] COND FALSE !(i < 10) VAL [array={11:0}, i=10] [L9] return array; VAL [\result={11:0}, array={11:0}, i=10] [L13] RET, EXPR getNumbers() VAL [array={11:0}, getNumbers()={11:0}] [L13] int* numbers = getNumbers(); [L15] int numbers2[10]; [L17] int i = 0; VAL [array={11:0}, i=0, numbers={11:0}, numbers2={10:0}] [L17] COND TRUE i < 10 VAL [array={11:0}, i=0, numbers={11:0}, numbers2={10:0}] [L18] EXPR numbers[i] VAL [array={11:0}, i=0, numbers={11:0}, numbers2={10:0}, numbers[i]=0] [L18] numbers2[i] = numbers[i] VAL [array={11:0}, i=0, numbers={11:0}, numbers2={10:0}, numbers[i]=0] [L17] ++i VAL [array={11:0}, i=1, numbers={11:0}, numbers2={10:0}] [L17] COND TRUE i < 10 VAL [array={11:0}, i=1, numbers={11:0}, numbers2={10:0}] [L18] EXPR numbers[i] VAL [array={11:0}, i=1, numbers={11:0}, numbers2={10:0}, numbers[i]=1] [L18] numbers2[i] = numbers[i] VAL [array={11:0}, i=1, numbers={11:0}, numbers2={10:0}, numbers[i]=1] [L17] ++i VAL [array={11:0}, i=2, numbers={11:0}, numbers2={10:0}] [L17] COND TRUE i < 10 VAL [array={11:0}, i=2, numbers={11:0}, numbers2={10:0}] [L18] EXPR numbers[i] VAL [array={11:0}, i=2, numbers={11:0}, numbers2={10:0}, numbers[i]=2] [L18] numbers2[i] = numbers[i] VAL [array={11:0}, i=2, numbers={11:0}, numbers2={10:0}, numbers[i]=2] [L17] ++i VAL [array={11:0}, i=3, numbers={11:0}, numbers2={10:0}] [L17] COND TRUE i < 10 VAL [array={11:0}, i=3, numbers={11:0}, numbers2={10:0}] [L18] EXPR numbers[i] VAL [array={11:0}, i=3, numbers={11:0}, numbers2={10:0}, numbers[i]=3] [L18] numbers2[i] = numbers[i] VAL [array={11:0}, i=3, numbers={11:0}, numbers2={10:0}, numbers[i]=3] [L17] ++i VAL [array={11:0}, i=4, numbers={11:0}, numbers2={10:0}] [L17] COND TRUE i < 10 VAL [array={11:0}, i=4, numbers={11:0}, numbers2={10:0}] [L18] EXPR numbers[i] VAL [array={11:0}, i=4, numbers={11:0}, numbers2={10:0}, numbers[i]=4] [L18] numbers2[i] = numbers[i] VAL [array={11:0}, i=4, numbers={11:0}, numbers2={10:0}, numbers[i]=4] [L17] ++i VAL [array={11:0}, i=5, numbers={11:0}, numbers2={10:0}] [L17] COND TRUE i < 10 VAL [array={11:0}, i=5, numbers={11:0}, numbers2={10:0}] [L18] EXPR numbers[i] VAL [array={11:0}, i=5, numbers={11:0}, numbers2={10:0}, numbers[i]=5] [L18] numbers2[i] = numbers[i] VAL [array={11:0}, i=5, numbers={11:0}, numbers2={10:0}, numbers[i]=5] [L17] ++i VAL [array={11:0}, i=6, numbers={11:0}, numbers2={10:0}] [L17] COND TRUE i < 10 VAL [array={11:0}, i=6, numbers={11:0}, numbers2={10:0}] [L18] EXPR numbers[i] VAL [array={11:0}, i=6, numbers={11:0}, numbers2={10:0}, numbers[i]=6] [L18] numbers2[i] = numbers[i] VAL [array={11:0}, i=6, numbers={11:0}, numbers2={10:0}, numbers[i]=6] [L17] ++i VAL [array={11:0}, i=7, numbers={11:0}, numbers2={10:0}] [L17] COND TRUE i < 10 VAL [array={11:0}, i=7, numbers={11:0}, numbers2={10:0}] [L18] EXPR numbers[i] VAL [array={11:0}, i=7, numbers={11:0}, numbers2={10:0}, numbers[i]=7] [L18] numbers2[i] = numbers[i] VAL [array={11:0}, i=7, numbers={11:0}, numbers2={10:0}, numbers[i]=7] [L17] ++i VAL [array={11:0}, i=8, numbers={11:0}, numbers2={10:0}] [L17] COND TRUE i < 10 VAL [array={11:0}, i=8, numbers={11:0}, numbers2={10:0}] [L18] EXPR numbers[i] VAL [array={11:0}, i=8, numbers={11:0}, numbers2={10:0}, numbers[i]=8] [L18] numbers2[i] = numbers[i] VAL [array={11:0}, i=8, numbers={11:0}, numbers2={10:0}, numbers[i]=8] [L17] ++i VAL [array={11:0}, i=9, numbers={11:0}, numbers2={10:0}] [L17] COND TRUE i < 10 VAL [array={11:0}, i=9, numbers={11:0}, numbers2={10:0}] [L18] EXPR numbers[i] VAL [array={11:0}, i=9, numbers={11:0}, numbers2={10:0}, numbers[i]=9] [L18] numbers2[i] = numbers[i] VAL [array={11:0}, i=9, numbers={11:0}, numbers2={10:0}, numbers[i]=9] [L17] ++i VAL [array={11:0}, i=10, numbers={11:0}, numbers2={10:0}] [L17] COND FALSE !(i < 10) VAL [array={11:0}, i=10, numbers={11:0}, numbers2={10:0}] [L21] return numbers2; [L21] return numbers2; VAL [\result={10:0}, array={11:0}, i=10, numbers={11:0}] [L25] RET, EXPR getNumbers2() VAL [array={11:0}, getNumbers2()={10:0}] [L25] int *numbers = getNumbers2(); [L26] numbers[0] = 100 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 39 locations, 9 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 20.0s, OverallIterations: 26, TraceHistogramMax: 10, AutomataDifference: 5.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 622 SDtfs, 755 SDslu, 2900 SDs, 0 SdLazy, 3207 SolverSat, 204 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1429 GetRequests, 1093 SyntacticMatches, 8 SemanticMatches, 328 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1007 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred in iteration=25, 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, 25 MinimizatonAttempts, 57 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 3.1s SatisfiabilityAnalysisTime, 5.7s InterpolantComputationTime, 2267 NumberOfCodeBlocks, 2130 NumberOfCodeBlocksAsserted, 92 NumberOfCheckSat, 2121 ConstructedInterpolants, 19 QuantifiedInterpolants, 520064 SizeOfPredicates, 50 NumberOfNonLiveVariables, 3567 ConjunctsInSsa, 280 ConjunctsInUnsatCore, 47 InterpolantComputations, 8 PerfectInterpolantSequences, 2935/4994 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 incorrect! Received shutdown request...