./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/list-ext3-properties/sll_nondet_insert-1.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/list-ext3-properties/sll_nondet_insert-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 27142e71f3089c5c3b5bf4f358882e993f701ffc ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 18:09:26,397 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 18:09:26,400 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 18:09:26,419 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 18:09:26,420 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 18:09:26,422 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 18:09:26,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 18:09:26,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 18:09:26,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 18:09:26,445 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 18:09:26,447 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 18:09:26,449 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 18:09:26,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 18:09:26,453 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 18:09:26,454 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 18:09:26,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 18:09:26,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 18:09:26,459 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 18:09:26,462 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 18:09:26,468 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 18:09:26,473 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 18:09:26,478 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 18:09:26,480 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 18:09:26,481 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 18:09:26,484 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 18:09:26,484 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 18:09:26,484 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 18:09:26,486 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 18:09:26,487 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 18:09:26,488 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 18:09:26,488 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 18:09:26,489 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 18:09:26,490 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 18:09:26,491 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 18:09:26,493 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 18:09:26,493 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 18:09:26,494 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 18:09:26,494 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 18:09:26,495 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 18:09:26,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 18:09:26,498 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 18:09:26,499 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 18:09:26,534 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 18:09:26,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 18:09:26,541 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 18:09:26,541 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 18:09:26,541 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 18:09:26,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 18:09:26,542 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 18:09:26,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 18:09:26,543 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 18:09:26,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 18:09:26,545 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 18:09:26,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 18:09:26,546 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 18:09:26,546 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 18:09:26,546 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 18:09:26,547 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 18:09:26,547 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 18:09:26,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 18:09:26,548 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 18:09:26,548 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 18:09:26,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 18:09:26,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 18:09:26,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 18:09:26,550 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 18:09:26,550 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 18:09:26,550 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 18:09:26,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 18:09:26,551 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 18:09:26,552 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 18:09:26,552 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 ! call(__VERIFIER_error())) ) 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 -> 27142e71f3089c5c3b5bf4f358882e993f701ffc [2020-07-28 18:09:26,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 18:09:26,911 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 18:09:26,915 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 18:09:26,917 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 18:09:26,919 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 18:09:26,920 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext3-properties/sll_nondet_insert-1.i [2020-07-28 18:09:26,998 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b46c0852/b8c48aa15c6b4c4ebb368ac578bb1463/FLAG931ac199d [2020-07-28 18:09:27,519 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 18:09:27,520 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext3-properties/sll_nondet_insert-1.i [2020-07-28 18:09:27,534 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b46c0852/b8c48aa15c6b4c4ebb368ac578bb1463/FLAG931ac199d [2020-07-28 18:09:27,823 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b46c0852/b8c48aa15c6b4c4ebb368ac578bb1463 [2020-07-28 18:09:27,827 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 18:09:27,830 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 18:09:27,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 18:09:27,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 18:09:27,835 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 18:09:27,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 06:09:27" (1/1) ... [2020-07-28 18:09:27,840 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1694e97a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:09:27, skipping insertion in model container [2020-07-28 18:09:27,840 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 06:09:27" (1/1) ... [2020-07-28 18:09:27,848 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 18:09:27,890 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 18:09:28,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 18:09:28,271 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 18:09:28,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 18:09:28,384 INFO L208 MainTranslator]: Completed translation [2020-07-28 18:09:28,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:09:28 WrapperNode [2020-07-28 18:09:28,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 18:09:28,385 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 18:09:28,386 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 18:09:28,386 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 18:09:28,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:09:28" (1/1) ... [2020-07-28 18:09:28,411 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:09:28" (1/1) ... [2020-07-28 18:09:28,452 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 18:09:28,453 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 18:09:28,453 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 18:09:28,453 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 18:09:28,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:09:28" (1/1) ... [2020-07-28 18:09:28,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:09:28" (1/1) ... [2020-07-28 18:09:28,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:09:28" (1/1) ... [2020-07-28 18:09:28,468 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:09:28" (1/1) ... [2020-07-28 18:09:28,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:09:28" (1/1) ... [2020-07-28 18:09:28,485 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:09:28" (1/1) ... [2020-07-28 18:09:28,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:09:28" (1/1) ... [2020-07-28 18:09:28,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 18:09:28,495 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 18:09:28,496 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 18:09:28,496 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 18:09:28,497 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:09:28" (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 [2020-07-28 18:09:28,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-28 18:09:28,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 18:09:28,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-28 18:09:28,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-28 18:09:28,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 18:09:28,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-07-28 18:09:28,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 18:09:28,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 18:09:29,212 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 18:09:29,213 INFO L295 CfgBuilder]: Removed 30 assume(true) statements. [2020-07-28 18:09:29,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:09:29 BoogieIcfgContainer [2020-07-28 18:09:29,218 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 18:09:29,219 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 18:09:29,219 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 18:09:29,222 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 18:09:29,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 06:09:27" (1/3) ... [2020-07-28 18:09:29,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@667e61dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 06:09:29, skipping insertion in model container [2020-07-28 18:09:29,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:09:28" (2/3) ... [2020-07-28 18:09:29,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@667e61dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 06:09:29, skipping insertion in model container [2020-07-28 18:09:29,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:09:29" (3/3) ... [2020-07-28 18:09:29,226 INFO L109 eAbstractionObserver]: Analyzing ICFG sll_nondet_insert-1.i [2020-07-28 18:09:29,237 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 18:09:29,244 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 18:09:29,258 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 18:09:29,280 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 18:09:29,281 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 18:09:29,281 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 18:09:29,281 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 18:09:29,281 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 18:09:29,282 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 18:09:29,282 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 18:09:29,282 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 18:09:29,298 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2020-07-28 18:09:29,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-28 18:09:29,304 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:09:29,305 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:09:29,305 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:09:29,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:09:29,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1240059524, now seen corresponding path program 1 times [2020-07-28 18:09:29,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:09:29,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766653277] [2020-07-28 18:09:29,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:09:29,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:09:29,453 INFO L280 TraceCheckUtils]: 0: Hoare triple {50#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {50#true} is VALID [2020-07-28 18:09:29,454 INFO L280 TraceCheckUtils]: 1: Hoare triple {50#true} havoc main_#res;havoc main_#t~ret14, main_#t~ret15.base, main_#t~ret15.offset, main_#t~ret16, main_#t~ret19, main_#t~post20, main_~position~0, main_#t~nondet17, main_#t~short18, main_#t~mem21.base, main_#t~mem21.offset, main_#t~ret22, main_#t~mem23.base, main_#t~mem23.offset, main_~len~2, main_~#s~0.base, main_~#s~0.offset, main_~k~0, main_~i~0;_get_nondet_int_#in~from, _get_nondet_int_#in~until := 2, 5;havoc _get_nondet_int_#res;havoc _get_nondet_int_#t~post13, _get_nondet_int_#t~nondet11, _get_nondet_int_#t~short12, _get_nondet_int_~from, _get_nondet_int_~until, _get_nondet_int_~len~1;_get_nondet_int_~from := _get_nondet_int_#in~from;_get_nondet_int_~until := _get_nondet_int_#in~until;_get_nondet_int_~len~1 := _get_nondet_int_~from; {50#true} is VALID [2020-07-28 18:09:29,455 INFO L280 TraceCheckUtils]: 2: Hoare triple {50#true} assume !true; {51#false} is VALID [2020-07-28 18:09:29,456 INFO L280 TraceCheckUtils]: 3: Hoare triple {51#false} _get_nondet_int_#res := _get_nondet_int_~len~1; {51#false} is VALID [2020-07-28 18:09:29,456 INFO L280 TraceCheckUtils]: 4: Hoare triple {51#false} main_#t~ret14 := _get_nondet_int_#res;assume -2147483648 <= main_#t~ret14 && main_#t~ret14 <= 2147483647;main_~len~2 := main_#t~ret14;havoc main_#t~ret14;call main_~#s~0.base, main_~#s~0.offset := #Ultimate.allocOnStack(4);sll_create_#in~len := main_~len~2;havoc sll_create_#res.base, sll_create_#res.offset;havoc sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, sll_create_#t~post2, sll_create_~len, sll_create_~head~0.base, sll_create_~head~0.offset;sll_create_~len := sll_create_#in~len;sll_create_~head~0.base, sll_create_~head~0.offset := 0, 0; {51#false} is VALID [2020-07-28 18:09:29,456 INFO L280 TraceCheckUtils]: 5: Hoare triple {51#false} assume !true; {51#false} is VALID [2020-07-28 18:09:29,457 INFO L280 TraceCheckUtils]: 6: Hoare triple {51#false} sll_create_#res.base, sll_create_#res.offset := sll_create_~head~0.base, sll_create_~head~0.offset; {51#false} is VALID [2020-07-28 18:09:29,457 INFO L280 TraceCheckUtils]: 7: Hoare triple {51#false} main_#t~ret15.base, main_#t~ret15.offset := sll_create_#res.base, sll_create_#res.offset;call write~init~$Pointer$(main_#t~ret15.base, main_#t~ret15.offset, main_~#s~0.base, main_~#s~0.offset, 4);havoc main_#t~ret15.base, main_#t~ret15.offset;_get_nondet_int_#in~from, _get_nondet_int_#in~until := 0, main_~len~2 - 1;havoc _get_nondet_int_#res;havoc _get_nondet_int_#t~post13, _get_nondet_int_#t~nondet11, _get_nondet_int_#t~short12, _get_nondet_int_~from, _get_nondet_int_~until, _get_nondet_int_~len~1;_get_nondet_int_~from := _get_nondet_int_#in~from;_get_nondet_int_~until := _get_nondet_int_#in~until;_get_nondet_int_~len~1 := _get_nondet_int_~from; {51#false} is VALID [2020-07-28 18:09:29,457 INFO L280 TraceCheckUtils]: 8: Hoare triple {51#false} assume !true; {51#false} is VALID [2020-07-28 18:09:29,458 INFO L280 TraceCheckUtils]: 9: Hoare triple {51#false} _get_nondet_int_#res := _get_nondet_int_~len~1; {51#false} is VALID [2020-07-28 18:09:29,458 INFO L280 TraceCheckUtils]: 10: Hoare triple {51#false} main_#t~ret16 := _get_nondet_int_#res;assume -2147483648 <= main_#t~ret16 && main_#t~ret16 <= 2147483647;main_~k~0 := main_#t~ret16;havoc main_#t~ret16;main_~i~0 := 0; {51#false} is VALID [2020-07-28 18:09:29,459 INFO L280 TraceCheckUtils]: 11: Hoare triple {51#false} assume !true; {51#false} is VALID [2020-07-28 18:09:29,459 INFO L280 TraceCheckUtils]: 12: Hoare triple {51#false} call main_#t~mem21.base, main_#t~mem21.offset := read~$Pointer$(main_~#s~0.base, main_~#s~0.offset, 4);sll_length_#in~head.base, sll_length_#in~head.offset := main_#t~mem21.base, main_#t~mem21.offset;havoc sll_length_#res;havoc sll_length_#t~post4, sll_length_#t~mem5.base, sll_length_#t~mem5.offset, sll_length_~head.base, sll_length_~head.offset, sll_length_~len~0;sll_length_~head.base, sll_length_~head.offset := sll_length_#in~head.base, sll_length_#in~head.offset;sll_length_~len~0 := 0; {51#false} is VALID [2020-07-28 18:09:29,459 INFO L280 TraceCheckUtils]: 13: Hoare triple {51#false} assume !(sll_length_~head.base != 0 || sll_length_~head.offset != 0); {51#false} is VALID [2020-07-28 18:09:29,460 INFO L280 TraceCheckUtils]: 14: Hoare triple {51#false} sll_length_#res := sll_length_~len~0; {51#false} is VALID [2020-07-28 18:09:29,460 INFO L280 TraceCheckUtils]: 15: Hoare triple {51#false} main_#t~ret22 := sll_length_#res;assume -2147483648 <= main_#t~ret22 && main_#t~ret22 <= 2147483647; {51#false} is VALID [2020-07-28 18:09:29,460 INFO L280 TraceCheckUtils]: 16: Hoare triple {51#false} assume main_~k~0 + main_~len~2 != main_#t~ret22;havoc main_#t~mem21.base, main_#t~mem21.offset;havoc main_#t~ret22; {51#false} is VALID [2020-07-28 18:09:29,461 INFO L280 TraceCheckUtils]: 17: Hoare triple {51#false} assume !false; {51#false} is VALID [2020-07-28 18:09:29,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:09:29,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766653277] [2020-07-28 18:09:29,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:09:29,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 18:09:29,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336039455] [2020-07-28 18:09:29,474 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-07-28 18:09:29,476 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:09:29,480 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 18:09:29,518 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:09:29,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 18:09:29,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:09:29,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 18:09:29,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 18:09:29,531 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 2 states. [2020-07-28 18:09:29,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:09:29,640 INFO L93 Difference]: Finished difference Result 89 states and 132 transitions. [2020-07-28 18:09:29,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 18:09:29,641 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-07-28 18:09:29,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:09:29,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 18:09:29,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 132 transitions. [2020-07-28 18:09:29,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 18:09:29,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 132 transitions. [2020-07-28 18:09:29,659 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 132 transitions. [2020-07-28 18:09:29,850 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 132 edges. 132 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:09:29,863 INFO L225 Difference]: With dead ends: 89 [2020-07-28 18:09:29,864 INFO L226 Difference]: Without dead ends: 40 [2020-07-28 18:09:29,867 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 18:09:29,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-07-28 18:09:29,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-07-28 18:09:29,908 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:09:29,908 INFO L82 GeneralOperation]: Start isEquivalent. First operand 40 states. Second operand 40 states. [2020-07-28 18:09:29,909 INFO L74 IsIncluded]: Start isIncluded. First operand 40 states. Second operand 40 states. [2020-07-28 18:09:29,909 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 40 states. [2020-07-28 18:09:29,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:09:29,913 INFO L93 Difference]: Finished difference Result 40 states and 51 transitions. [2020-07-28 18:09:29,914 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2020-07-28 18:09:29,914 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:09:29,915 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:09:29,915 INFO L74 IsIncluded]: Start isIncluded. First operand 40 states. Second operand 40 states. [2020-07-28 18:09:29,915 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 40 states. [2020-07-28 18:09:29,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:09:29,919 INFO L93 Difference]: Finished difference Result 40 states and 51 transitions. [2020-07-28 18:09:29,919 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2020-07-28 18:09:29,919 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:09:29,920 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:09:29,920 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:09:29,920 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:09:29,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-07-28 18:09:29,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2020-07-28 18:09:29,925 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 18 [2020-07-28 18:09:29,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:09:29,925 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2020-07-28 18:09:29,926 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 18:09:29,926 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2020-07-28 18:09:29,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-28 18:09:29,927 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:09:29,927 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:09:29,927 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 18:09:29,928 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:09:29,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:09:29,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1466688541, now seen corresponding path program 1 times [2020-07-28 18:09:29,928 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:09:29,929 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882410651] [2020-07-28 18:09:29,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:09:29,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:09:30,064 INFO L280 TraceCheckUtils]: 0: Hoare triple {309#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {309#true} is VALID [2020-07-28 18:09:30,066 INFO L280 TraceCheckUtils]: 1: Hoare triple {309#true} havoc main_#res;havoc main_#t~ret14, main_#t~ret15.base, main_#t~ret15.offset, main_#t~ret16, main_#t~ret19, main_#t~post20, main_~position~0, main_#t~nondet17, main_#t~short18, main_#t~mem21.base, main_#t~mem21.offset, main_#t~ret22, main_#t~mem23.base, main_#t~mem23.offset, main_~len~2, main_~#s~0.base, main_~#s~0.offset, main_~k~0, main_~i~0;_get_nondet_int_#in~from, _get_nondet_int_#in~until := 2, 5;havoc _get_nondet_int_#res;havoc _get_nondet_int_#t~post13, _get_nondet_int_#t~nondet11, _get_nondet_int_#t~short12, _get_nondet_int_~from, _get_nondet_int_~until, _get_nondet_int_~len~1;_get_nondet_int_~from := _get_nondet_int_#in~from;_get_nondet_int_~until := _get_nondet_int_#in~until;_get_nondet_int_~len~1 := _get_nondet_int_~from; {311#(<= 2 ULTIMATE.start__get_nondet_int_~len~1)} is VALID [2020-07-28 18:09:30,066 INFO L280 TraceCheckUtils]: 2: Hoare triple {311#(<= 2 ULTIMATE.start__get_nondet_int_~len~1)} _get_nondet_int_#t~short12 := _get_nondet_int_~len~1 < _get_nondet_int_~until; {311#(<= 2 ULTIMATE.start__get_nondet_int_~len~1)} is VALID [2020-07-28 18:09:30,067 INFO L280 TraceCheckUtils]: 3: Hoare triple {311#(<= 2 ULTIMATE.start__get_nondet_int_~len~1)} assume _get_nondet_int_#t~short12;assume -2147483648 <= _get_nondet_int_#t~nondet11 && _get_nondet_int_#t~nondet11 <= 2147483647;_get_nondet_int_#t~short12 := 0 != _get_nondet_int_#t~nondet11; {311#(<= 2 ULTIMATE.start__get_nondet_int_~len~1)} is VALID [2020-07-28 18:09:30,068 INFO L280 TraceCheckUtils]: 4: Hoare triple {311#(<= 2 ULTIMATE.start__get_nondet_int_~len~1)} assume !_get_nondet_int_#t~short12;havoc _get_nondet_int_#t~nondet11;havoc _get_nondet_int_#t~short12; {311#(<= 2 ULTIMATE.start__get_nondet_int_~len~1)} is VALID [2020-07-28 18:09:30,069 INFO L280 TraceCheckUtils]: 5: Hoare triple {311#(<= 2 ULTIMATE.start__get_nondet_int_~len~1)} _get_nondet_int_#res := _get_nondet_int_~len~1; {312#(<= 2 |ULTIMATE.start__get_nondet_int_#res|)} is VALID [2020-07-28 18:09:30,071 INFO L280 TraceCheckUtils]: 6: Hoare triple {312#(<= 2 |ULTIMATE.start__get_nondet_int_#res|)} main_#t~ret14 := _get_nondet_int_#res;assume -2147483648 <= main_#t~ret14 && main_#t~ret14 <= 2147483647;main_~len~2 := main_#t~ret14;havoc main_#t~ret14;call main_~#s~0.base, main_~#s~0.offset := #Ultimate.allocOnStack(4);sll_create_#in~len := main_~len~2;havoc sll_create_#res.base, sll_create_#res.offset;havoc sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, sll_create_#t~post2, sll_create_~len, sll_create_~head~0.base, sll_create_~head~0.offset;sll_create_~len := sll_create_#in~len;sll_create_~head~0.base, sll_create_~head~0.offset := 0, 0; {313#(<= 2 ULTIMATE.start_sll_create_~len)} is VALID [2020-07-28 18:09:30,072 INFO L280 TraceCheckUtils]: 7: Hoare triple {313#(<= 2 ULTIMATE.start_sll_create_~len)} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {314#(<= 2 |ULTIMATE.start_sll_create_#t~post2|)} is VALID [2020-07-28 18:09:30,073 INFO L280 TraceCheckUtils]: 8: Hoare triple {314#(<= 2 |ULTIMATE.start_sll_create_#t~post2|)} assume !(sll_create_#t~post2 > 0);havoc sll_create_#t~post2; {310#false} is VALID [2020-07-28 18:09:30,073 INFO L280 TraceCheckUtils]: 9: Hoare triple {310#false} sll_create_#res.base, sll_create_#res.offset := sll_create_~head~0.base, sll_create_~head~0.offset; {310#false} is VALID [2020-07-28 18:09:30,074 INFO L280 TraceCheckUtils]: 10: Hoare triple {310#false} main_#t~ret15.base, main_#t~ret15.offset := sll_create_#res.base, sll_create_#res.offset;call write~init~$Pointer$(main_#t~ret15.base, main_#t~ret15.offset, main_~#s~0.base, main_~#s~0.offset, 4);havoc main_#t~ret15.base, main_#t~ret15.offset;_get_nondet_int_#in~from, _get_nondet_int_#in~until := 0, main_~len~2 - 1;havoc _get_nondet_int_#res;havoc _get_nondet_int_#t~post13, _get_nondet_int_#t~nondet11, _get_nondet_int_#t~short12, _get_nondet_int_~from, _get_nondet_int_~until, _get_nondet_int_~len~1;_get_nondet_int_~from := _get_nondet_int_#in~from;_get_nondet_int_~until := _get_nondet_int_#in~until;_get_nondet_int_~len~1 := _get_nondet_int_~from; {310#false} is VALID [2020-07-28 18:09:30,074 INFO L280 TraceCheckUtils]: 11: Hoare triple {310#false} _get_nondet_int_#t~short12 := _get_nondet_int_~len~1 < _get_nondet_int_~until; {310#false} is VALID [2020-07-28 18:09:30,075 INFO L280 TraceCheckUtils]: 12: Hoare triple {310#false} assume _get_nondet_int_#t~short12;assume -2147483648 <= _get_nondet_int_#t~nondet11 && _get_nondet_int_#t~nondet11 <= 2147483647;_get_nondet_int_#t~short12 := 0 != _get_nondet_int_#t~nondet11; {310#false} is VALID [2020-07-28 18:09:30,075 INFO L280 TraceCheckUtils]: 13: Hoare triple {310#false} assume !_get_nondet_int_#t~short12;havoc _get_nondet_int_#t~nondet11;havoc _get_nondet_int_#t~short12; {310#false} is VALID [2020-07-28 18:09:30,075 INFO L280 TraceCheckUtils]: 14: Hoare triple {310#false} _get_nondet_int_#res := _get_nondet_int_~len~1; {310#false} is VALID [2020-07-28 18:09:30,076 INFO L280 TraceCheckUtils]: 15: Hoare triple {310#false} main_#t~ret16 := _get_nondet_int_#res;assume -2147483648 <= main_#t~ret16 && main_#t~ret16 <= 2147483647;main_~k~0 := main_#t~ret16;havoc main_#t~ret16;main_~i~0 := 0; {310#false} is VALID [2020-07-28 18:09:30,076 INFO L280 TraceCheckUtils]: 16: Hoare triple {310#false} main_#t~short18 := main_~i~0 < main_~k~0; {310#false} is VALID [2020-07-28 18:09:30,076 INFO L280 TraceCheckUtils]: 17: Hoare triple {310#false} assume !main_#t~short18; {310#false} is VALID [2020-07-28 18:09:30,077 INFO L280 TraceCheckUtils]: 18: Hoare triple {310#false} assume !main_#t~short18;havoc main_#t~nondet17;havoc main_#t~short18; {310#false} is VALID [2020-07-28 18:09:30,077 INFO L280 TraceCheckUtils]: 19: Hoare triple {310#false} call main_#t~mem21.base, main_#t~mem21.offset := read~$Pointer$(main_~#s~0.base, main_~#s~0.offset, 4);sll_length_#in~head.base, sll_length_#in~head.offset := main_#t~mem21.base, main_#t~mem21.offset;havoc sll_length_#res;havoc sll_length_#t~post4, sll_length_#t~mem5.base, sll_length_#t~mem5.offset, sll_length_~head.base, sll_length_~head.offset, sll_length_~len~0;sll_length_~head.base, sll_length_~head.offset := sll_length_#in~head.base, sll_length_#in~head.offset;sll_length_~len~0 := 0; {310#false} is VALID [2020-07-28 18:09:30,078 INFO L280 TraceCheckUtils]: 20: Hoare triple {310#false} assume !(sll_length_~head.base != 0 || sll_length_~head.offset != 0); {310#false} is VALID [2020-07-28 18:09:30,078 INFO L280 TraceCheckUtils]: 21: Hoare triple {310#false} sll_length_#res := sll_length_~len~0; {310#false} is VALID [2020-07-28 18:09:30,078 INFO L280 TraceCheckUtils]: 22: Hoare triple {310#false} main_#t~ret22 := sll_length_#res;assume -2147483648 <= main_#t~ret22 && main_#t~ret22 <= 2147483647; {310#false} is VALID [2020-07-28 18:09:30,079 INFO L280 TraceCheckUtils]: 23: Hoare triple {310#false} assume main_~k~0 + main_~len~2 != main_#t~ret22;havoc main_#t~mem21.base, main_#t~mem21.offset;havoc main_#t~ret22; {310#false} is VALID [2020-07-28 18:09:30,079 INFO L280 TraceCheckUtils]: 24: Hoare triple {310#false} assume !false; {310#false} is VALID [2020-07-28 18:09:30,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:09:30,083 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882410651] [2020-07-28 18:09:30,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:09:30,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-28 18:09:30,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748523682] [2020-07-28 18:09:30,085 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-07-28 18:09:30,086 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:09:30,086 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 18:09:30,121 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:09:30,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 18:09:30,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:09:30,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 18:09:30,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-28 18:09:30,123 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand 6 states. [2020-07-28 18:09:30,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:09:30,454 INFO L93 Difference]: Finished difference Result 71 states and 91 transitions. [2020-07-28 18:09:30,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 18:09:30,454 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-07-28 18:09:30,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:09:30,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 18:09:30,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 91 transitions. [2020-07-28 18:09:30,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 18:09:30,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 91 transitions. [2020-07-28 18:09:30,461 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 91 transitions. [2020-07-28 18:09:30,583 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 91 edges. 91 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:09:30,586 INFO L225 Difference]: With dead ends: 71 [2020-07-28 18:09:30,586 INFO L226 Difference]: Without dead ends: 42 [2020-07-28 18:09:30,588 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-07-28 18:09:30,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-07-28 18:09:30,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-07-28 18:09:30,607 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:09:30,607 INFO L82 GeneralOperation]: Start isEquivalent. First operand 42 states. Second operand 42 states. [2020-07-28 18:09:30,607 INFO L74 IsIncluded]: Start isIncluded. First operand 42 states. Second operand 42 states. [2020-07-28 18:09:30,607 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 42 states. [2020-07-28 18:09:30,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:09:30,611 INFO L93 Difference]: Finished difference Result 42 states and 53 transitions. [2020-07-28 18:09:30,611 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 53 transitions. [2020-07-28 18:09:30,612 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:09:30,612 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:09:30,612 INFO L74 IsIncluded]: Start isIncluded. First operand 42 states. Second operand 42 states. [2020-07-28 18:09:30,612 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 42 states. [2020-07-28 18:09:30,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:09:30,616 INFO L93 Difference]: Finished difference Result 42 states and 53 transitions. [2020-07-28 18:09:30,616 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 53 transitions. [2020-07-28 18:09:30,617 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:09:30,617 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:09:30,617 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:09:30,617 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:09:30,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-07-28 18:09:30,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 53 transitions. [2020-07-28 18:09:30,621 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 53 transitions. Word has length 25 [2020-07-28 18:09:30,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:09:30,621 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 53 transitions. [2020-07-28 18:09:30,621 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 18:09:30,622 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 53 transitions. [2020-07-28 18:09:30,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-07-28 18:09:30,623 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:09:30,623 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:09:30,623 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 18:09:30,624 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:09:30,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:09:30,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1510946244, now seen corresponding path program 1 times [2020-07-28 18:09:30,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:09:30,625 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153630630] [2020-07-28 18:09:30,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:09:30,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:09:30,744 INFO L280 TraceCheckUtils]: 0: Hoare triple {558#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {558#true} is VALID [2020-07-28 18:09:30,746 INFO L280 TraceCheckUtils]: 1: Hoare triple {558#true} havoc main_#res;havoc main_#t~ret14, main_#t~ret15.base, main_#t~ret15.offset, main_#t~ret16, main_#t~ret19, main_#t~post20, main_~position~0, main_#t~nondet17, main_#t~short18, main_#t~mem21.base, main_#t~mem21.offset, main_#t~ret22, main_#t~mem23.base, main_#t~mem23.offset, main_~len~2, main_~#s~0.base, main_~#s~0.offset, main_~k~0, main_~i~0;_get_nondet_int_#in~from, _get_nondet_int_#in~until := 2, 5;havoc _get_nondet_int_#res;havoc _get_nondet_int_#t~post13, _get_nondet_int_#t~nondet11, _get_nondet_int_#t~short12, _get_nondet_int_~from, _get_nondet_int_~until, _get_nondet_int_~len~1;_get_nondet_int_~from := _get_nondet_int_#in~from;_get_nondet_int_~until := _get_nondet_int_#in~until;_get_nondet_int_~len~1 := _get_nondet_int_~from; {560#(<= 2 ULTIMATE.start__get_nondet_int_~len~1)} is VALID [2020-07-28 18:09:30,747 INFO L280 TraceCheckUtils]: 2: Hoare triple {560#(<= 2 ULTIMATE.start__get_nondet_int_~len~1)} _get_nondet_int_#t~short12 := _get_nondet_int_~len~1 < _get_nondet_int_~until; {560#(<= 2 ULTIMATE.start__get_nondet_int_~len~1)} is VALID [2020-07-28 18:09:30,748 INFO L280 TraceCheckUtils]: 3: Hoare triple {560#(<= 2 ULTIMATE.start__get_nondet_int_~len~1)} assume _get_nondet_int_#t~short12;assume -2147483648 <= _get_nondet_int_#t~nondet11 && _get_nondet_int_#t~nondet11 <= 2147483647;_get_nondet_int_#t~short12 := 0 != _get_nondet_int_#t~nondet11; {560#(<= 2 ULTIMATE.start__get_nondet_int_~len~1)} is VALID [2020-07-28 18:09:30,748 INFO L280 TraceCheckUtils]: 4: Hoare triple {560#(<= 2 ULTIMATE.start__get_nondet_int_~len~1)} assume !_get_nondet_int_#t~short12;havoc _get_nondet_int_#t~nondet11;havoc _get_nondet_int_#t~short12; {560#(<= 2 ULTIMATE.start__get_nondet_int_~len~1)} is VALID [2020-07-28 18:09:30,749 INFO L280 TraceCheckUtils]: 5: Hoare triple {560#(<= 2 ULTIMATE.start__get_nondet_int_~len~1)} _get_nondet_int_#res := _get_nondet_int_~len~1; {561#(<= 2 |ULTIMATE.start__get_nondet_int_#res|)} is VALID [2020-07-28 18:09:30,751 INFO L280 TraceCheckUtils]: 6: Hoare triple {561#(<= 2 |ULTIMATE.start__get_nondet_int_#res|)} main_#t~ret14 := _get_nondet_int_#res;assume -2147483648 <= main_#t~ret14 && main_#t~ret14 <= 2147483647;main_~len~2 := main_#t~ret14;havoc main_#t~ret14;call main_~#s~0.base, main_~#s~0.offset := #Ultimate.allocOnStack(4);sll_create_#in~len := main_~len~2;havoc sll_create_#res.base, sll_create_#res.offset;havoc sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, sll_create_#t~post2, sll_create_~len, sll_create_~head~0.base, sll_create_~head~0.offset;sll_create_~len := sll_create_#in~len;sll_create_~head~0.base, sll_create_~head~0.offset := 0, 0; {562#(<= 2 ULTIMATE.start_sll_create_~len)} is VALID [2020-07-28 18:09:30,752 INFO L280 TraceCheckUtils]: 7: Hoare triple {562#(<= 2 ULTIMATE.start_sll_create_~len)} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {563#(<= 1 ULTIMATE.start_sll_create_~len)} is VALID [2020-07-28 18:09:30,753 INFO L280 TraceCheckUtils]: 8: Hoare triple {563#(<= 1 ULTIMATE.start_sll_create_~len)} assume !!(sll_create_#t~post2 > 0);havoc sll_create_#t~post2;call sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset := #Ultimate.allocOnHeap(4);sll_create_~new_head~0.base, sll_create_~new_head~0.offset := sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset; {563#(<= 1 ULTIMATE.start_sll_create_~len)} is VALID [2020-07-28 18:09:30,754 INFO L280 TraceCheckUtils]: 9: Hoare triple {563#(<= 1 ULTIMATE.start_sll_create_~len)} assume !(0 == sll_create_~new_head~0.base && 0 == sll_create_~new_head~0.offset); {563#(<= 1 ULTIMATE.start_sll_create_~len)} is VALID [2020-07-28 18:09:30,755 INFO L280 TraceCheckUtils]: 10: Hoare triple {563#(<= 1 ULTIMATE.start_sll_create_~len)} call write~$Pointer$(sll_create_~head~0.base, sll_create_~head~0.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, 4);sll_create_~head~0.base, sll_create_~head~0.offset := sll_create_~new_head~0.base, sll_create_~new_head~0.offset; {563#(<= 1 ULTIMATE.start_sll_create_~len)} is VALID [2020-07-28 18:09:30,756 INFO L280 TraceCheckUtils]: 11: Hoare triple {563#(<= 1 ULTIMATE.start_sll_create_~len)} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {564#(<= 1 |ULTIMATE.start_sll_create_#t~post2|)} is VALID [2020-07-28 18:09:30,757 INFO L280 TraceCheckUtils]: 12: Hoare triple {564#(<= 1 |ULTIMATE.start_sll_create_#t~post2|)} assume !(sll_create_#t~post2 > 0);havoc sll_create_#t~post2; {559#false} is VALID [2020-07-28 18:09:30,757 INFO L280 TraceCheckUtils]: 13: Hoare triple {559#false} sll_create_#res.base, sll_create_#res.offset := sll_create_~head~0.base, sll_create_~head~0.offset; {559#false} is VALID [2020-07-28 18:09:30,758 INFO L280 TraceCheckUtils]: 14: Hoare triple {559#false} main_#t~ret15.base, main_#t~ret15.offset := sll_create_#res.base, sll_create_#res.offset;call write~init~$Pointer$(main_#t~ret15.base, main_#t~ret15.offset, main_~#s~0.base, main_~#s~0.offset, 4);havoc main_#t~ret15.base, main_#t~ret15.offset;_get_nondet_int_#in~from, _get_nondet_int_#in~until := 0, main_~len~2 - 1;havoc _get_nondet_int_#res;havoc _get_nondet_int_#t~post13, _get_nondet_int_#t~nondet11, _get_nondet_int_#t~short12, _get_nondet_int_~from, _get_nondet_int_~until, _get_nondet_int_~len~1;_get_nondet_int_~from := _get_nondet_int_#in~from;_get_nondet_int_~until := _get_nondet_int_#in~until;_get_nondet_int_~len~1 := _get_nondet_int_~from; {559#false} is VALID [2020-07-28 18:09:30,758 INFO L280 TraceCheckUtils]: 15: Hoare triple {559#false} _get_nondet_int_#t~short12 := _get_nondet_int_~len~1 < _get_nondet_int_~until; {559#false} is VALID [2020-07-28 18:09:30,759 INFO L280 TraceCheckUtils]: 16: Hoare triple {559#false} assume _get_nondet_int_#t~short12;assume -2147483648 <= _get_nondet_int_#t~nondet11 && _get_nondet_int_#t~nondet11 <= 2147483647;_get_nondet_int_#t~short12 := 0 != _get_nondet_int_#t~nondet11; {559#false} is VALID [2020-07-28 18:09:30,760 INFO L280 TraceCheckUtils]: 17: Hoare triple {559#false} assume !_get_nondet_int_#t~short12;havoc _get_nondet_int_#t~nondet11;havoc _get_nondet_int_#t~short12; {559#false} is VALID [2020-07-28 18:09:30,760 INFO L280 TraceCheckUtils]: 18: Hoare triple {559#false} _get_nondet_int_#res := _get_nondet_int_~len~1; {559#false} is VALID [2020-07-28 18:09:30,760 INFO L280 TraceCheckUtils]: 19: Hoare triple {559#false} main_#t~ret16 := _get_nondet_int_#res;assume -2147483648 <= main_#t~ret16 && main_#t~ret16 <= 2147483647;main_~k~0 := main_#t~ret16;havoc main_#t~ret16;main_~i~0 := 0; {559#false} is VALID [2020-07-28 18:09:30,761 INFO L280 TraceCheckUtils]: 20: Hoare triple {559#false} main_#t~short18 := main_~i~0 < main_~k~0; {559#false} is VALID [2020-07-28 18:09:30,761 INFO L280 TraceCheckUtils]: 21: Hoare triple {559#false} assume !main_#t~short18; {559#false} is VALID [2020-07-28 18:09:30,762 INFO L280 TraceCheckUtils]: 22: Hoare triple {559#false} assume !main_#t~short18;havoc main_#t~nondet17;havoc main_#t~short18; {559#false} is VALID [2020-07-28 18:09:30,762 INFO L280 TraceCheckUtils]: 23: Hoare triple {559#false} call main_#t~mem21.base, main_#t~mem21.offset := read~$Pointer$(main_~#s~0.base, main_~#s~0.offset, 4);sll_length_#in~head.base, sll_length_#in~head.offset := main_#t~mem21.base, main_#t~mem21.offset;havoc sll_length_#res;havoc sll_length_#t~post4, sll_length_#t~mem5.base, sll_length_#t~mem5.offset, sll_length_~head.base, sll_length_~head.offset, sll_length_~len~0;sll_length_~head.base, sll_length_~head.offset := sll_length_#in~head.base, sll_length_#in~head.offset;sll_length_~len~0 := 0; {559#false} is VALID [2020-07-28 18:09:30,762 INFO L280 TraceCheckUtils]: 24: Hoare triple {559#false} assume !(sll_length_~head.base != 0 || sll_length_~head.offset != 0); {559#false} is VALID [2020-07-28 18:09:30,763 INFO L280 TraceCheckUtils]: 25: Hoare triple {559#false} sll_length_#res := sll_length_~len~0; {559#false} is VALID [2020-07-28 18:09:30,763 INFO L280 TraceCheckUtils]: 26: Hoare triple {559#false} main_#t~ret22 := sll_length_#res;assume -2147483648 <= main_#t~ret22 && main_#t~ret22 <= 2147483647; {559#false} is VALID [2020-07-28 18:09:30,763 INFO L280 TraceCheckUtils]: 27: Hoare triple {559#false} assume main_~k~0 + main_~len~2 != main_#t~ret22;havoc main_#t~mem21.base, main_#t~mem21.offset;havoc main_#t~ret22; {559#false} is VALID [2020-07-28 18:09:30,764 INFO L280 TraceCheckUtils]: 28: Hoare triple {559#false} assume !false; {559#false} is VALID [2020-07-28 18:09:30,766 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:09:30,767 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153630630] [2020-07-28 18:09:30,767 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433154294] [2020-07-28 18:09:30,768 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 [2020-07-28 18:09:30,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:09:30,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-28 18:09:30,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:09:30,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 18:09:31,188 INFO L280 TraceCheckUtils]: 0: Hoare triple {558#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {558#true} is VALID [2020-07-28 18:09:31,189 INFO L280 TraceCheckUtils]: 1: Hoare triple {558#true} havoc main_#res;havoc main_#t~ret14, main_#t~ret15.base, main_#t~ret15.offset, main_#t~ret16, main_#t~ret19, main_#t~post20, main_~position~0, main_#t~nondet17, main_#t~short18, main_#t~mem21.base, main_#t~mem21.offset, main_#t~ret22, main_#t~mem23.base, main_#t~mem23.offset, main_~len~2, main_~#s~0.base, main_~#s~0.offset, main_~k~0, main_~i~0;_get_nondet_int_#in~from, _get_nondet_int_#in~until := 2, 5;havoc _get_nondet_int_#res;havoc _get_nondet_int_#t~post13, _get_nondet_int_#t~nondet11, _get_nondet_int_#t~short12, _get_nondet_int_~from, _get_nondet_int_~until, _get_nondet_int_~len~1;_get_nondet_int_~from := _get_nondet_int_#in~from;_get_nondet_int_~until := _get_nondet_int_#in~until;_get_nondet_int_~len~1 := _get_nondet_int_~from; {560#(<= 2 ULTIMATE.start__get_nondet_int_~len~1)} is VALID [2020-07-28 18:09:31,190 INFO L280 TraceCheckUtils]: 2: Hoare triple {560#(<= 2 ULTIMATE.start__get_nondet_int_~len~1)} _get_nondet_int_#t~short12 := _get_nondet_int_~len~1 < _get_nondet_int_~until; {560#(<= 2 ULTIMATE.start__get_nondet_int_~len~1)} is VALID [2020-07-28 18:09:31,191 INFO L280 TraceCheckUtils]: 3: Hoare triple {560#(<= 2 ULTIMATE.start__get_nondet_int_~len~1)} assume _get_nondet_int_#t~short12;assume -2147483648 <= _get_nondet_int_#t~nondet11 && _get_nondet_int_#t~nondet11 <= 2147483647;_get_nondet_int_#t~short12 := 0 != _get_nondet_int_#t~nondet11; {560#(<= 2 ULTIMATE.start__get_nondet_int_~len~1)} is VALID [2020-07-28 18:09:31,192 INFO L280 TraceCheckUtils]: 4: Hoare triple {560#(<= 2 ULTIMATE.start__get_nondet_int_~len~1)} assume !_get_nondet_int_#t~short12;havoc _get_nondet_int_#t~nondet11;havoc _get_nondet_int_#t~short12; {560#(<= 2 ULTIMATE.start__get_nondet_int_~len~1)} is VALID [2020-07-28 18:09:31,193 INFO L280 TraceCheckUtils]: 5: Hoare triple {560#(<= 2 ULTIMATE.start__get_nondet_int_~len~1)} _get_nondet_int_#res := _get_nondet_int_~len~1; {561#(<= 2 |ULTIMATE.start__get_nondet_int_#res|)} is VALID [2020-07-28 18:09:31,195 INFO L280 TraceCheckUtils]: 6: Hoare triple {561#(<= 2 |ULTIMATE.start__get_nondet_int_#res|)} main_#t~ret14 := _get_nondet_int_#res;assume -2147483648 <= main_#t~ret14 && main_#t~ret14 <= 2147483647;main_~len~2 := main_#t~ret14;havoc main_#t~ret14;call main_~#s~0.base, main_~#s~0.offset := #Ultimate.allocOnStack(4);sll_create_#in~len := main_~len~2;havoc sll_create_#res.base, sll_create_#res.offset;havoc sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, sll_create_#t~post2, sll_create_~len, sll_create_~head~0.base, sll_create_~head~0.offset;sll_create_~len := sll_create_#in~len;sll_create_~head~0.base, sll_create_~head~0.offset := 0, 0; {562#(<= 2 ULTIMATE.start_sll_create_~len)} is VALID [2020-07-28 18:09:31,196 INFO L280 TraceCheckUtils]: 7: Hoare triple {562#(<= 2 ULTIMATE.start_sll_create_~len)} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {563#(<= 1 ULTIMATE.start_sll_create_~len)} is VALID [2020-07-28 18:09:31,197 INFO L280 TraceCheckUtils]: 8: Hoare triple {563#(<= 1 ULTIMATE.start_sll_create_~len)} assume !!(sll_create_#t~post2 > 0);havoc sll_create_#t~post2;call sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset := #Ultimate.allocOnHeap(4);sll_create_~new_head~0.base, sll_create_~new_head~0.offset := sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset; {563#(<= 1 ULTIMATE.start_sll_create_~len)} is VALID [2020-07-28 18:09:31,198 INFO L280 TraceCheckUtils]: 9: Hoare triple {563#(<= 1 ULTIMATE.start_sll_create_~len)} assume !(0 == sll_create_~new_head~0.base && 0 == sll_create_~new_head~0.offset); {563#(<= 1 ULTIMATE.start_sll_create_~len)} is VALID [2020-07-28 18:09:31,205 INFO L280 TraceCheckUtils]: 10: Hoare triple {563#(<= 1 ULTIMATE.start_sll_create_~len)} call write~$Pointer$(sll_create_~head~0.base, sll_create_~head~0.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, 4);sll_create_~head~0.base, sll_create_~head~0.offset := sll_create_~new_head~0.base, sll_create_~new_head~0.offset; {563#(<= 1 ULTIMATE.start_sll_create_~len)} is VALID [2020-07-28 18:09:31,207 INFO L280 TraceCheckUtils]: 11: Hoare triple {563#(<= 1 ULTIMATE.start_sll_create_~len)} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {564#(<= 1 |ULTIMATE.start_sll_create_#t~post2|)} is VALID [2020-07-28 18:09:31,209 INFO L280 TraceCheckUtils]: 12: Hoare triple {564#(<= 1 |ULTIMATE.start_sll_create_#t~post2|)} assume !(sll_create_#t~post2 > 0);havoc sll_create_#t~post2; {559#false} is VALID [2020-07-28 18:09:31,210 INFO L280 TraceCheckUtils]: 13: Hoare triple {559#false} sll_create_#res.base, sll_create_#res.offset := sll_create_~head~0.base, sll_create_~head~0.offset; {559#false} is VALID [2020-07-28 18:09:31,210 INFO L280 TraceCheckUtils]: 14: Hoare triple {559#false} main_#t~ret15.base, main_#t~ret15.offset := sll_create_#res.base, sll_create_#res.offset;call write~init~$Pointer$(main_#t~ret15.base, main_#t~ret15.offset, main_~#s~0.base, main_~#s~0.offset, 4);havoc main_#t~ret15.base, main_#t~ret15.offset;_get_nondet_int_#in~from, _get_nondet_int_#in~until := 0, main_~len~2 - 1;havoc _get_nondet_int_#res;havoc _get_nondet_int_#t~post13, _get_nondet_int_#t~nondet11, _get_nondet_int_#t~short12, _get_nondet_int_~from, _get_nondet_int_~until, _get_nondet_int_~len~1;_get_nondet_int_~from := _get_nondet_int_#in~from;_get_nondet_int_~until := _get_nondet_int_#in~until;_get_nondet_int_~len~1 := _get_nondet_int_~from; {559#false} is VALID [2020-07-28 18:09:31,210 INFO L280 TraceCheckUtils]: 15: Hoare triple {559#false} _get_nondet_int_#t~short12 := _get_nondet_int_~len~1 < _get_nondet_int_~until; {559#false} is VALID [2020-07-28 18:09:31,211 INFO L280 TraceCheckUtils]: 16: Hoare triple {559#false} assume _get_nondet_int_#t~short12;assume -2147483648 <= _get_nondet_int_#t~nondet11 && _get_nondet_int_#t~nondet11 <= 2147483647;_get_nondet_int_#t~short12 := 0 != _get_nondet_int_#t~nondet11; {559#false} is VALID [2020-07-28 18:09:31,211 INFO L280 TraceCheckUtils]: 17: Hoare triple {559#false} assume !_get_nondet_int_#t~short12;havoc _get_nondet_int_#t~nondet11;havoc _get_nondet_int_#t~short12; {559#false} is VALID [2020-07-28 18:09:31,213 INFO L280 TraceCheckUtils]: 18: Hoare triple {559#false} _get_nondet_int_#res := _get_nondet_int_~len~1; {559#false} is VALID [2020-07-28 18:09:31,213 INFO L280 TraceCheckUtils]: 19: Hoare triple {559#false} main_#t~ret16 := _get_nondet_int_#res;assume -2147483648 <= main_#t~ret16 && main_#t~ret16 <= 2147483647;main_~k~0 := main_#t~ret16;havoc main_#t~ret16;main_~i~0 := 0; {559#false} is VALID [2020-07-28 18:09:31,213 INFO L280 TraceCheckUtils]: 20: Hoare triple {559#false} main_#t~short18 := main_~i~0 < main_~k~0; {559#false} is VALID [2020-07-28 18:09:31,214 INFO L280 TraceCheckUtils]: 21: Hoare triple {559#false} assume !main_#t~short18; {559#false} is VALID [2020-07-28 18:09:31,214 INFO L280 TraceCheckUtils]: 22: Hoare triple {559#false} assume !main_#t~short18;havoc main_#t~nondet17;havoc main_#t~short18; {559#false} is VALID [2020-07-28 18:09:31,215 INFO L280 TraceCheckUtils]: 23: Hoare triple {559#false} call main_#t~mem21.base, main_#t~mem21.offset := read~$Pointer$(main_~#s~0.base, main_~#s~0.offset, 4);sll_length_#in~head.base, sll_length_#in~head.offset := main_#t~mem21.base, main_#t~mem21.offset;havoc sll_length_#res;havoc sll_length_#t~post4, sll_length_#t~mem5.base, sll_length_#t~mem5.offset, sll_length_~head.base, sll_length_~head.offset, sll_length_~len~0;sll_length_~head.base, sll_length_~head.offset := sll_length_#in~head.base, sll_length_#in~head.offset;sll_length_~len~0 := 0; {559#false} is VALID [2020-07-28 18:09:31,215 INFO L280 TraceCheckUtils]: 24: Hoare triple {559#false} assume !(sll_length_~head.base != 0 || sll_length_~head.offset != 0); {559#false} is VALID [2020-07-28 18:09:31,215 INFO L280 TraceCheckUtils]: 25: Hoare triple {559#false} sll_length_#res := sll_length_~len~0; {559#false} is VALID [2020-07-28 18:09:31,216 INFO L280 TraceCheckUtils]: 26: Hoare triple {559#false} main_#t~ret22 := sll_length_#res;assume -2147483648 <= main_#t~ret22 && main_#t~ret22 <= 2147483647; {559#false} is VALID [2020-07-28 18:09:31,217 INFO L280 TraceCheckUtils]: 27: Hoare triple {559#false} assume main_~k~0 + main_~len~2 != main_#t~ret22;havoc main_#t~mem21.base, main_#t~mem21.offset;havoc main_#t~ret22; {559#false} is VALID [2020-07-28 18:09:31,218 INFO L280 TraceCheckUtils]: 28: Hoare triple {559#false} assume !false; {559#false} is VALID [2020-07-28 18:09:31,220 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:09:31,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-28 18:09:31,221 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2020-07-28 18:09:31,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532687783] [2020-07-28 18:09:31,224 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2020-07-28 18:09:31,225 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:09:31,226 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-28 18:09:31,267 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:09:31,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-28 18:09:31,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:09:31,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-28 18:09:31,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-28 18:09:31,269 INFO L87 Difference]: Start difference. First operand 42 states and 53 transitions. Second operand 7 states. [2020-07-28 18:09:31,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:09:31,695 INFO L93 Difference]: Finished difference Result 75 states and 95 transitions. [2020-07-28 18:09:31,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-28 18:09:31,696 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2020-07-28 18:09:31,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:09:31,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-28 18:09:31,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 95 transitions. [2020-07-28 18:09:31,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-28 18:09:31,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 95 transitions. [2020-07-28 18:09:31,702 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 95 transitions. [2020-07-28 18:09:31,808 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 95 edges. 95 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:09:31,809 INFO L225 Difference]: With dead ends: 75 [2020-07-28 18:09:31,811 INFO L226 Difference]: Without dead ends: 46 [2020-07-28 18:09:31,812 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-07-28 18:09:31,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-07-28 18:09:31,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-07-28 18:09:31,833 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:09:31,833 INFO L82 GeneralOperation]: Start isEquivalent. First operand 46 states. Second operand 46 states. [2020-07-28 18:09:31,833 INFO L74 IsIncluded]: Start isIncluded. First operand 46 states. Second operand 46 states. [2020-07-28 18:09:31,833 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 46 states. [2020-07-28 18:09:31,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:09:31,838 INFO L93 Difference]: Finished difference Result 46 states and 57 transitions. [2020-07-28 18:09:31,838 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 57 transitions. [2020-07-28 18:09:31,839 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:09:31,839 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:09:31,839 INFO L74 IsIncluded]: Start isIncluded. First operand 46 states. Second operand 46 states. [2020-07-28 18:09:31,840 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 46 states. [2020-07-28 18:09:31,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:09:31,844 INFO L93 Difference]: Finished difference Result 46 states and 57 transitions. [2020-07-28 18:09:31,845 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 57 transitions. [2020-07-28 18:09:31,845 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:09:31,846 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:09:31,846 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:09:31,846 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:09:31,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-07-28 18:09:31,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 57 transitions. [2020-07-28 18:09:31,850 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 57 transitions. Word has length 29 [2020-07-28 18:09:31,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:09:31,851 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 57 transitions. [2020-07-28 18:09:31,851 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-28 18:09:31,851 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 57 transitions. [2020-07-28 18:09:31,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-07-28 18:09:31,857 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:09:31,857 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:09:32,068 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-07-28 18:09:32,069 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:09:32,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:09:32,070 INFO L82 PathProgramCache]: Analyzing trace with hash -774677525, now seen corresponding path program 2 times [2020-07-28 18:09:32,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:09:32,071 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644320106] [2020-07-28 18:09:32,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:09:32,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:09:32,203 INFO L280 TraceCheckUtils]: 0: Hoare triple {914#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {914#true} is VALID [2020-07-28 18:09:32,203 INFO L280 TraceCheckUtils]: 1: Hoare triple {914#true} havoc main_#res;havoc main_#t~ret14, main_#t~ret15.base, main_#t~ret15.offset, main_#t~ret16, main_#t~ret19, main_#t~post20, main_~position~0, main_#t~nondet17, main_#t~short18, main_#t~mem21.base, main_#t~mem21.offset, main_#t~ret22, main_#t~mem23.base, main_#t~mem23.offset, main_~len~2, main_~#s~0.base, main_~#s~0.offset, main_~k~0, main_~i~0;_get_nondet_int_#in~from, _get_nondet_int_#in~until := 2, 5;havoc _get_nondet_int_#res;havoc _get_nondet_int_#t~post13, _get_nondet_int_#t~nondet11, _get_nondet_int_#t~short12, _get_nondet_int_~from, _get_nondet_int_~until, _get_nondet_int_~len~1;_get_nondet_int_~from := _get_nondet_int_#in~from;_get_nondet_int_~until := _get_nondet_int_#in~until;_get_nondet_int_~len~1 := _get_nondet_int_~from; {914#true} is VALID [2020-07-28 18:09:32,204 INFO L280 TraceCheckUtils]: 2: Hoare triple {914#true} _get_nondet_int_#t~short12 := _get_nondet_int_~len~1 < _get_nondet_int_~until; {914#true} is VALID [2020-07-28 18:09:32,204 INFO L280 TraceCheckUtils]: 3: Hoare triple {914#true} assume _get_nondet_int_#t~short12;assume -2147483648 <= _get_nondet_int_#t~nondet11 && _get_nondet_int_#t~nondet11 <= 2147483647;_get_nondet_int_#t~short12 := 0 != _get_nondet_int_#t~nondet11; {914#true} is VALID [2020-07-28 18:09:32,204 INFO L280 TraceCheckUtils]: 4: Hoare triple {914#true} assume !_get_nondet_int_#t~short12;havoc _get_nondet_int_#t~nondet11;havoc _get_nondet_int_#t~short12; {914#true} is VALID [2020-07-28 18:09:32,205 INFO L280 TraceCheckUtils]: 5: Hoare triple {914#true} _get_nondet_int_#res := _get_nondet_int_~len~1; {914#true} is VALID [2020-07-28 18:09:32,205 INFO L280 TraceCheckUtils]: 6: Hoare triple {914#true} main_#t~ret14 := _get_nondet_int_#res;assume -2147483648 <= main_#t~ret14 && main_#t~ret14 <= 2147483647;main_~len~2 := main_#t~ret14;havoc main_#t~ret14;call main_~#s~0.base, main_~#s~0.offset := #Ultimate.allocOnStack(4);sll_create_#in~len := main_~len~2;havoc sll_create_#res.base, sll_create_#res.offset;havoc sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, sll_create_#t~post2, sll_create_~len, sll_create_~head~0.base, sll_create_~head~0.offset;sll_create_~len := sll_create_#in~len;sll_create_~head~0.base, sll_create_~head~0.offset := 0, 0; {914#true} is VALID [2020-07-28 18:09:32,205 INFO L280 TraceCheckUtils]: 7: Hoare triple {914#true} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {914#true} is VALID [2020-07-28 18:09:32,205 INFO L280 TraceCheckUtils]: 8: Hoare triple {914#true} assume !!(sll_create_#t~post2 > 0);havoc sll_create_#t~post2;call sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset := #Ultimate.allocOnHeap(4);sll_create_~new_head~0.base, sll_create_~new_head~0.offset := sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset; {914#true} is VALID [2020-07-28 18:09:32,206 INFO L280 TraceCheckUtils]: 9: Hoare triple {914#true} assume !(0 == sll_create_~new_head~0.base && 0 == sll_create_~new_head~0.offset); {914#true} is VALID [2020-07-28 18:09:32,206 INFO L280 TraceCheckUtils]: 10: Hoare triple {914#true} call write~$Pointer$(sll_create_~head~0.base, sll_create_~head~0.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, 4);sll_create_~head~0.base, sll_create_~head~0.offset := sll_create_~new_head~0.base, sll_create_~new_head~0.offset; {914#true} is VALID [2020-07-28 18:09:32,206 INFO L280 TraceCheckUtils]: 11: Hoare triple {914#true} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {914#true} is VALID [2020-07-28 18:09:32,207 INFO L280 TraceCheckUtils]: 12: Hoare triple {914#true} assume !!(sll_create_#t~post2 > 0);havoc sll_create_#t~post2;call sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset := #Ultimate.allocOnHeap(4);sll_create_~new_head~0.base, sll_create_~new_head~0.offset := sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset; {916#(= 0 ULTIMATE.start_sll_create_~new_head~0.offset)} is VALID [2020-07-28 18:09:32,208 INFO L280 TraceCheckUtils]: 13: Hoare triple {916#(= 0 ULTIMATE.start_sll_create_~new_head~0.offset)} assume !(0 == sll_create_~new_head~0.base && 0 == sll_create_~new_head~0.offset); {917#(not (= 0 ULTIMATE.start_sll_create_~new_head~0.base))} is VALID [2020-07-28 18:09:32,209 INFO L280 TraceCheckUtils]: 14: Hoare triple {917#(not (= 0 ULTIMATE.start_sll_create_~new_head~0.base))} call write~$Pointer$(sll_create_~head~0.base, sll_create_~head~0.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, 4);sll_create_~head~0.base, sll_create_~head~0.offset := sll_create_~new_head~0.base, sll_create_~new_head~0.offset; {918#(not (= 0 ULTIMATE.start_sll_create_~head~0.base))} is VALID [2020-07-28 18:09:32,210 INFO L280 TraceCheckUtils]: 15: Hoare triple {918#(not (= 0 ULTIMATE.start_sll_create_~head~0.base))} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {918#(not (= 0 ULTIMATE.start_sll_create_~head~0.base))} is VALID [2020-07-28 18:09:32,211 INFO L280 TraceCheckUtils]: 16: Hoare triple {918#(not (= 0 ULTIMATE.start_sll_create_~head~0.base))} assume !(sll_create_#t~post2 > 0);havoc sll_create_#t~post2; {918#(not (= 0 ULTIMATE.start_sll_create_~head~0.base))} is VALID [2020-07-28 18:09:32,211 INFO L280 TraceCheckUtils]: 17: Hoare triple {918#(not (= 0 ULTIMATE.start_sll_create_~head~0.base))} sll_create_#res.base, sll_create_#res.offset := sll_create_~head~0.base, sll_create_~head~0.offset; {919#(not (= 0 |ULTIMATE.start_sll_create_#res.base|))} is VALID [2020-07-28 18:09:32,212 INFO L280 TraceCheckUtils]: 18: Hoare triple {919#(not (= 0 |ULTIMATE.start_sll_create_#res.base|))} main_#t~ret15.base, main_#t~ret15.offset := sll_create_#res.base, sll_create_#res.offset;call write~init~$Pointer$(main_#t~ret15.base, main_#t~ret15.offset, main_~#s~0.base, main_~#s~0.offset, 4);havoc main_#t~ret15.base, main_#t~ret15.offset;_get_nondet_int_#in~from, _get_nondet_int_#in~until := 0, main_~len~2 - 1;havoc _get_nondet_int_#res;havoc _get_nondet_int_#t~post13, _get_nondet_int_#t~nondet11, _get_nondet_int_#t~short12, _get_nondet_int_~from, _get_nondet_int_~until, _get_nondet_int_~len~1;_get_nondet_int_~from := _get_nondet_int_#in~from;_get_nondet_int_~until := _get_nondet_int_#in~until;_get_nondet_int_~len~1 := _get_nondet_int_~from; {920#(not (= 0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))} is VALID [2020-07-28 18:09:32,213 INFO L280 TraceCheckUtils]: 19: Hoare triple {920#(not (= 0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))} _get_nondet_int_#t~short12 := _get_nondet_int_~len~1 < _get_nondet_int_~until; {920#(not (= 0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))} is VALID [2020-07-28 18:09:32,214 INFO L280 TraceCheckUtils]: 20: Hoare triple {920#(not (= 0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))} assume _get_nondet_int_#t~short12;assume -2147483648 <= _get_nondet_int_#t~nondet11 && _get_nondet_int_#t~nondet11 <= 2147483647;_get_nondet_int_#t~short12 := 0 != _get_nondet_int_#t~nondet11; {920#(not (= 0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))} is VALID [2020-07-28 18:09:32,215 INFO L280 TraceCheckUtils]: 21: Hoare triple {920#(not (= 0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))} assume !_get_nondet_int_#t~short12;havoc _get_nondet_int_#t~nondet11;havoc _get_nondet_int_#t~short12; {920#(not (= 0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))} is VALID [2020-07-28 18:09:32,215 INFO L280 TraceCheckUtils]: 22: Hoare triple {920#(not (= 0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))} _get_nondet_int_#res := _get_nondet_int_~len~1; {920#(not (= 0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))} is VALID [2020-07-28 18:09:32,216 INFO L280 TraceCheckUtils]: 23: Hoare triple {920#(not (= 0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))} main_#t~ret16 := _get_nondet_int_#res;assume -2147483648 <= main_#t~ret16 && main_#t~ret16 <= 2147483647;main_~k~0 := main_#t~ret16;havoc main_#t~ret16;main_~i~0 := 0; {920#(not (= 0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))} is VALID [2020-07-28 18:09:32,217 INFO L280 TraceCheckUtils]: 24: Hoare triple {920#(not (= 0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))} main_#t~short18 := main_~i~0 < main_~k~0; {920#(not (= 0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))} is VALID [2020-07-28 18:09:32,217 INFO L280 TraceCheckUtils]: 25: Hoare triple {920#(not (= 0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))} assume !main_#t~short18; {920#(not (= 0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))} is VALID [2020-07-28 18:09:32,218 INFO L280 TraceCheckUtils]: 26: Hoare triple {920#(not (= 0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))} assume !main_#t~short18;havoc main_#t~nondet17;havoc main_#t~short18; {920#(not (= 0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))} is VALID [2020-07-28 18:09:32,219 INFO L280 TraceCheckUtils]: 27: Hoare triple {920#(not (= 0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))} call main_#t~mem21.base, main_#t~mem21.offset := read~$Pointer$(main_~#s~0.base, main_~#s~0.offset, 4);sll_length_#in~head.base, sll_length_#in~head.offset := main_#t~mem21.base, main_#t~mem21.offset;havoc sll_length_#res;havoc sll_length_#t~post4, sll_length_#t~mem5.base, sll_length_#t~mem5.offset, sll_length_~head.base, sll_length_~head.offset, sll_length_~len~0;sll_length_~head.base, sll_length_~head.offset := sll_length_#in~head.base, sll_length_#in~head.offset;sll_length_~len~0 := 0; {921#(not (= 0 ULTIMATE.start_sll_length_~head.base))} is VALID [2020-07-28 18:09:32,220 INFO L280 TraceCheckUtils]: 28: Hoare triple {921#(not (= 0 ULTIMATE.start_sll_length_~head.base))} assume !(sll_length_~head.base != 0 || sll_length_~head.offset != 0); {915#false} is VALID [2020-07-28 18:09:32,220 INFO L280 TraceCheckUtils]: 29: Hoare triple {915#false} sll_length_#res := sll_length_~len~0; {915#false} is VALID [2020-07-28 18:09:32,220 INFO L280 TraceCheckUtils]: 30: Hoare triple {915#false} main_#t~ret22 := sll_length_#res;assume -2147483648 <= main_#t~ret22 && main_#t~ret22 <= 2147483647; {915#false} is VALID [2020-07-28 18:09:32,220 INFO L280 TraceCheckUtils]: 31: Hoare triple {915#false} assume main_~k~0 + main_~len~2 != main_#t~ret22;havoc main_#t~mem21.base, main_#t~mem21.offset;havoc main_#t~ret22; {915#false} is VALID [2020-07-28 18:09:32,221 INFO L280 TraceCheckUtils]: 32: Hoare triple {915#false} assume !false; {915#false} is VALID [2020-07-28 18:09:32,223 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-28 18:09:32,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644320106] [2020-07-28 18:09:32,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:09:32,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-28 18:09:32,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348868829] [2020-07-28 18:09:32,225 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2020-07-28 18:09:32,226 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:09:32,226 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-28 18:09:32,261 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:09:32,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-28 18:09:32,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:09:32,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-28 18:09:32,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-07-28 18:09:32,263 INFO L87 Difference]: Start difference. First operand 46 states and 57 transitions. Second operand 8 states. [2020-07-28 18:09:32,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:09:32,774 INFO L93 Difference]: Finished difference Result 72 states and 88 transitions. [2020-07-28 18:09:32,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-28 18:09:32,774 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2020-07-28 18:09:32,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:09:32,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-28 18:09:32,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 86 transitions. [2020-07-28 18:09:32,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-28 18:09:32,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 86 transitions. [2020-07-28 18:09:32,779 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 86 transitions. [2020-07-28 18:09:32,892 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 86 edges. 86 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:09:32,894 INFO L225 Difference]: With dead ends: 72 [2020-07-28 18:09:32,894 INFO L226 Difference]: Without dead ends: 67 [2020-07-28 18:09:32,895 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-07-28 18:09:32,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-07-28 18:09:32,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 51. [2020-07-28 18:09:32,939 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:09:32,939 INFO L82 GeneralOperation]: Start isEquivalent. First operand 67 states. Second operand 51 states. [2020-07-28 18:09:32,939 INFO L74 IsIncluded]: Start isIncluded. First operand 67 states. Second operand 51 states. [2020-07-28 18:09:32,940 INFO L87 Difference]: Start difference. First operand 67 states. Second operand 51 states. [2020-07-28 18:09:32,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:09:32,943 INFO L93 Difference]: Finished difference Result 67 states and 83 transitions. [2020-07-28 18:09:32,943 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 83 transitions. [2020-07-28 18:09:32,943 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:09:32,944 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:09:32,944 INFO L74 IsIncluded]: Start isIncluded. First operand 51 states. Second operand 67 states. [2020-07-28 18:09:32,944 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 67 states. [2020-07-28 18:09:32,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:09:32,947 INFO L93 Difference]: Finished difference Result 67 states and 83 transitions. [2020-07-28 18:09:32,947 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 83 transitions. [2020-07-28 18:09:32,948 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:09:32,948 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:09:32,948 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:09:32,948 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:09:32,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-07-28 18:09:32,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 64 transitions. [2020-07-28 18:09:32,951 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 64 transitions. Word has length 33 [2020-07-28 18:09:32,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:09:32,951 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 64 transitions. [2020-07-28 18:09:32,951 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-28 18:09:32,952 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 64 transitions. [2020-07-28 18:09:32,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-07-28 18:09:32,953 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:09:32,953 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:09:32,953 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 18:09:32,953 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:09:32,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:09:32,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1806454861, now seen corresponding path program 1 times [2020-07-28 18:09:32,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:09:32,954 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890256304] [2020-07-28 18:09:32,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:09:32,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:09:33,126 INFO L280 TraceCheckUtils]: 0: Hoare triple {1234#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {1234#true} is VALID [2020-07-28 18:09:33,127 INFO L280 TraceCheckUtils]: 1: Hoare triple {1234#true} havoc main_#res;havoc main_#t~ret14, main_#t~ret15.base, main_#t~ret15.offset, main_#t~ret16, main_#t~ret19, main_#t~post20, main_~position~0, main_#t~nondet17, main_#t~short18, main_#t~mem21.base, main_#t~mem21.offset, main_#t~ret22, main_#t~mem23.base, main_#t~mem23.offset, main_~len~2, main_~#s~0.base, main_~#s~0.offset, main_~k~0, main_~i~0;_get_nondet_int_#in~from, _get_nondet_int_#in~until := 2, 5;havoc _get_nondet_int_#res;havoc _get_nondet_int_#t~post13, _get_nondet_int_#t~nondet11, _get_nondet_int_#t~short12, _get_nondet_int_~from, _get_nondet_int_~until, _get_nondet_int_~len~1;_get_nondet_int_~from := _get_nondet_int_#in~from;_get_nondet_int_~until := _get_nondet_int_#in~until;_get_nondet_int_~len~1 := _get_nondet_int_~from; {1234#true} is VALID [2020-07-28 18:09:33,127 INFO L280 TraceCheckUtils]: 2: Hoare triple {1234#true} _get_nondet_int_#t~short12 := _get_nondet_int_~len~1 < _get_nondet_int_~until; {1234#true} is VALID [2020-07-28 18:09:33,127 INFO L280 TraceCheckUtils]: 3: Hoare triple {1234#true} assume _get_nondet_int_#t~short12;assume -2147483648 <= _get_nondet_int_#t~nondet11 && _get_nondet_int_#t~nondet11 <= 2147483647;_get_nondet_int_#t~short12 := 0 != _get_nondet_int_#t~nondet11; {1234#true} is VALID [2020-07-28 18:09:33,128 INFO L280 TraceCheckUtils]: 4: Hoare triple {1234#true} assume !_get_nondet_int_#t~short12;havoc _get_nondet_int_#t~nondet11;havoc _get_nondet_int_#t~short12; {1234#true} is VALID [2020-07-28 18:09:33,128 INFO L280 TraceCheckUtils]: 5: Hoare triple {1234#true} _get_nondet_int_#res := _get_nondet_int_~len~1; {1234#true} is VALID [2020-07-28 18:09:33,128 INFO L280 TraceCheckUtils]: 6: Hoare triple {1234#true} main_#t~ret14 := _get_nondet_int_#res;assume -2147483648 <= main_#t~ret14 && main_#t~ret14 <= 2147483647;main_~len~2 := main_#t~ret14;havoc main_#t~ret14;call main_~#s~0.base, main_~#s~0.offset := #Ultimate.allocOnStack(4);sll_create_#in~len := main_~len~2;havoc sll_create_#res.base, sll_create_#res.offset;havoc sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, sll_create_#t~post2, sll_create_~len, sll_create_~head~0.base, sll_create_~head~0.offset;sll_create_~len := sll_create_#in~len;sll_create_~head~0.base, sll_create_~head~0.offset := 0, 0; {1234#true} is VALID [2020-07-28 18:09:33,128 INFO L280 TraceCheckUtils]: 7: Hoare triple {1234#true} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {1234#true} is VALID [2020-07-28 18:09:33,132 INFO L280 TraceCheckUtils]: 8: Hoare triple {1234#true} assume !!(sll_create_#t~post2 > 0);havoc sll_create_#t~post2;call sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset := #Ultimate.allocOnHeap(4);sll_create_~new_head~0.base, sll_create_~new_head~0.offset := sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset; {1236#(= 0 ULTIMATE.start_sll_create_~new_head~0.offset)} is VALID [2020-07-28 18:09:33,133 INFO L280 TraceCheckUtils]: 9: Hoare triple {1236#(= 0 ULTIMATE.start_sll_create_~new_head~0.offset)} assume !(0 == sll_create_~new_head~0.base && 0 == sll_create_~new_head~0.offset); {1237#(not (= 0 ULTIMATE.start_sll_create_~new_head~0.base))} is VALID [2020-07-28 18:09:33,134 INFO L280 TraceCheckUtils]: 10: Hoare triple {1237#(not (= 0 ULTIMATE.start_sll_create_~new_head~0.base))} call write~$Pointer$(sll_create_~head~0.base, sll_create_~head~0.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, 4);sll_create_~head~0.base, sll_create_~head~0.offset := sll_create_~new_head~0.base, sll_create_~new_head~0.offset; {1238#(not (= 0 ULTIMATE.start_sll_create_~head~0.base))} is VALID [2020-07-28 18:09:33,134 INFO L280 TraceCheckUtils]: 11: Hoare triple {1238#(not (= 0 ULTIMATE.start_sll_create_~head~0.base))} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {1238#(not (= 0 ULTIMATE.start_sll_create_~head~0.base))} is VALID [2020-07-28 18:09:33,135 INFO L280 TraceCheckUtils]: 12: Hoare triple {1238#(not (= 0 ULTIMATE.start_sll_create_~head~0.base))} assume !!(sll_create_#t~post2 > 0);havoc sll_create_#t~post2;call sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset := #Ultimate.allocOnHeap(4);sll_create_~new_head~0.base, sll_create_~new_head~0.offset := sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset; {1238#(not (= 0 ULTIMATE.start_sll_create_~head~0.base))} is VALID [2020-07-28 18:09:33,135 INFO L280 TraceCheckUtils]: 13: Hoare triple {1238#(not (= 0 ULTIMATE.start_sll_create_~head~0.base))} assume !(0 == sll_create_~new_head~0.base && 0 == sll_create_~new_head~0.offset); {1238#(not (= 0 ULTIMATE.start_sll_create_~head~0.base))} is VALID [2020-07-28 18:09:33,136 INFO L280 TraceCheckUtils]: 14: Hoare triple {1238#(not (= 0 ULTIMATE.start_sll_create_~head~0.base))} call write~$Pointer$(sll_create_~head~0.base, sll_create_~head~0.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, 4);sll_create_~head~0.base, sll_create_~head~0.offset := sll_create_~new_head~0.base, sll_create_~new_head~0.offset; {1239#(not (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset)))} is VALID [2020-07-28 18:09:33,136 INFO L280 TraceCheckUtils]: 15: Hoare triple {1239#(not (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset)))} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {1239#(not (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset)))} is VALID [2020-07-28 18:09:33,137 INFO L280 TraceCheckUtils]: 16: Hoare triple {1239#(not (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset)))} assume !(sll_create_#t~post2 > 0);havoc sll_create_#t~post2; {1239#(not (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset)))} is VALID [2020-07-28 18:09:33,137 INFO L280 TraceCheckUtils]: 17: Hoare triple {1239#(not (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset)))} sll_create_#res.base, sll_create_#res.offset := sll_create_~head~0.base, sll_create_~head~0.offset; {1240#(not (= 0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_create_#res.base|) |ULTIMATE.start_sll_create_#res.offset|)))} is VALID [2020-07-28 18:09:33,138 INFO L280 TraceCheckUtils]: 18: Hoare triple {1240#(not (= 0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_create_#res.base|) |ULTIMATE.start_sll_create_#res.offset|)))} main_#t~ret15.base, main_#t~ret15.offset := sll_create_#res.base, sll_create_#res.offset;call write~init~$Pointer$(main_#t~ret15.base, main_#t~ret15.offset, main_~#s~0.base, main_~#s~0.offset, 4);havoc main_#t~ret15.base, main_#t~ret15.offset;_get_nondet_int_#in~from, _get_nondet_int_#in~until := 0, main_~len~2 - 1;havoc _get_nondet_int_#res;havoc _get_nondet_int_#t~post13, _get_nondet_int_#t~nondet11, _get_nondet_int_#t~short12, _get_nondet_int_~from, _get_nondet_int_~until, _get_nondet_int_~len~1;_get_nondet_int_~from := _get_nondet_int_#in~from;_get_nondet_int_~until := _get_nondet_int_#in~until;_get_nondet_int_~len~1 := _get_nondet_int_~from; {1241#(not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))} is VALID [2020-07-28 18:09:33,138 INFO L280 TraceCheckUtils]: 19: Hoare triple {1241#(not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))} _get_nondet_int_#t~short12 := _get_nondet_int_~len~1 < _get_nondet_int_~until; {1241#(not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))} is VALID [2020-07-28 18:09:33,139 INFO L280 TraceCheckUtils]: 20: Hoare triple {1241#(not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))} assume _get_nondet_int_#t~short12;assume -2147483648 <= _get_nondet_int_#t~nondet11 && _get_nondet_int_#t~nondet11 <= 2147483647;_get_nondet_int_#t~short12 := 0 != _get_nondet_int_#t~nondet11; {1241#(not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))} is VALID [2020-07-28 18:09:33,140 INFO L280 TraceCheckUtils]: 21: Hoare triple {1241#(not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))} assume !_get_nondet_int_#t~short12;havoc _get_nondet_int_#t~nondet11;havoc _get_nondet_int_#t~short12; {1241#(not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))} is VALID [2020-07-28 18:09:33,140 INFO L280 TraceCheckUtils]: 22: Hoare triple {1241#(not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))} _get_nondet_int_#res := _get_nondet_int_~len~1; {1241#(not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))} is VALID [2020-07-28 18:09:33,140 INFO L280 TraceCheckUtils]: 23: Hoare triple {1241#(not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))} main_#t~ret16 := _get_nondet_int_#res;assume -2147483648 <= main_#t~ret16 && main_#t~ret16 <= 2147483647;main_~k~0 := main_#t~ret16;havoc main_#t~ret16;main_~i~0 := 0; {1241#(not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))} is VALID [2020-07-28 18:09:33,141 INFO L280 TraceCheckUtils]: 24: Hoare triple {1241#(not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))} main_#t~short18 := main_~i~0 < main_~k~0; {1241#(not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))} is VALID [2020-07-28 18:09:33,141 INFO L280 TraceCheckUtils]: 25: Hoare triple {1241#(not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))} assume !main_#t~short18; {1241#(not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))} is VALID [2020-07-28 18:09:33,142 INFO L280 TraceCheckUtils]: 26: Hoare triple {1241#(not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))} assume !main_#t~short18;havoc main_#t~nondet17;havoc main_#t~short18; {1241#(not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))} is VALID [2020-07-28 18:09:33,142 INFO L280 TraceCheckUtils]: 27: Hoare triple {1241#(not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))} call main_#t~mem21.base, main_#t~mem21.offset := read~$Pointer$(main_~#s~0.base, main_~#s~0.offset, 4);sll_length_#in~head.base, sll_length_#in~head.offset := main_#t~mem21.base, main_#t~mem21.offset;havoc sll_length_#res;havoc sll_length_#t~post4, sll_length_#t~mem5.base, sll_length_#t~mem5.offset, sll_length_~head.base, sll_length_~head.offset, sll_length_~len~0;sll_length_~head.base, sll_length_~head.offset := sll_length_#in~head.base, sll_length_#in~head.offset;sll_length_~len~0 := 0; {1242#(not (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_length_~head.base) ULTIMATE.start_sll_length_~head.offset)))} is VALID [2020-07-28 18:09:33,143 INFO L280 TraceCheckUtils]: 28: Hoare triple {1242#(not (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_length_~head.base) ULTIMATE.start_sll_length_~head.offset)))} assume !!(sll_length_~head.base != 0 || sll_length_~head.offset != 0);sll_length_#t~post4 := sll_length_~len~0;sll_length_~len~0 := 1 + sll_length_#t~post4;havoc sll_length_#t~post4;call sll_length_#t~mem5.base, sll_length_#t~mem5.offset := read~$Pointer$(sll_length_~head.base, sll_length_~head.offset, 4);sll_length_~head.base, sll_length_~head.offset := sll_length_#t~mem5.base, sll_length_#t~mem5.offset;havoc sll_length_#t~mem5.base, sll_length_#t~mem5.offset; {1243#(not (= 0 ULTIMATE.start_sll_length_~head.base))} is VALID [2020-07-28 18:09:33,144 INFO L280 TraceCheckUtils]: 29: Hoare triple {1243#(not (= 0 ULTIMATE.start_sll_length_~head.base))} assume !(sll_length_~head.base != 0 || sll_length_~head.offset != 0); {1235#false} is VALID [2020-07-28 18:09:33,145 INFO L280 TraceCheckUtils]: 30: Hoare triple {1235#false} sll_length_#res := sll_length_~len~0; {1235#false} is VALID [2020-07-28 18:09:33,145 INFO L280 TraceCheckUtils]: 31: Hoare triple {1235#false} main_#t~ret22 := sll_length_#res;assume -2147483648 <= main_#t~ret22 && main_#t~ret22 <= 2147483647; {1235#false} is VALID [2020-07-28 18:09:33,145 INFO L280 TraceCheckUtils]: 32: Hoare triple {1235#false} assume main_~k~0 + main_~len~2 != main_#t~ret22;havoc main_#t~mem21.base, main_#t~mem21.offset;havoc main_#t~ret22; {1235#false} is VALID [2020-07-28 18:09:33,145 INFO L280 TraceCheckUtils]: 33: Hoare triple {1235#false} assume !false; {1235#false} is VALID [2020-07-28 18:09:33,149 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:09:33,149 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890256304] [2020-07-28 18:09:33,149 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120843620] [2020-07-28 18:09:33,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-28 18:09:33,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:09:33,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 40 conjunts are in the unsatisfiable core [2020-07-28 18:09:33,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:09:33,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 18:09:33,319 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 11 treesize of output 7 [2020-07-28 18:09:33,320 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-28 18:09:33,333 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-28 18:09:33,335 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-28 18:09:33,335 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:12 [2020-07-28 18:09:33,338 WARN L406 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2020-07-28 18:09:33,338 WARN L407 uantifierElimination]: Input elimination task: ∃ [|v_#memory_$Pointer$.base_16|, v_ULTIMATE.start_sll_create_~head~0.base_6]. (and (= (store |v_#memory_$Pointer$.base_16| ULTIMATE.start_sll_create_~head~0.base (store (select |v_#memory_$Pointer$.base_16| ULTIMATE.start_sll_create_~head~0.base) 0 v_ULTIMATE.start_sll_create_~head~0.base_6)) |#memory_$Pointer$.base|) (not (= v_ULTIMATE.start_sll_create_~head~0.base_6 0)) (= 0 ULTIMATE.start_sll_create_~head~0.offset)) [2020-07-28 18:09:33,338 WARN L408 uantifierElimination]: ElimStorePlain result: ∃ []. (and (not (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) 0))) (= 0 ULTIMATE.start_sll_create_~head~0.offset)) [2020-07-28 18:09:33,471 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-07-28 18:09:33,471 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-28 18:09:33,478 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-28 18:09:33,481 INFO L544 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-07-28 18:09:33,481 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:34, output treesize:23 [2020-07-28 18:09:33,484 WARN L406 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2020-07-28 18:09:33,484 WARN L407 uantifierElimination]: Input elimination task: ∃ [|ULTIMATE.start_main_~#s~0.base|, |ULTIMATE.start_main_~#s~0.offset|, |#memory_$Pointer$.offset|]. (let ((.cse0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (.cse1 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (and (= ULTIMATE.start_sll_length_~head.base .cse0) (not (= 0 (select (select |#memory_$Pointer$.base| .cse0) 0))) (= ULTIMATE.start_sll_length_~head.offset .cse1) (= 0 .cse1))) [2020-07-28 18:09:33,485 WARN L408 uantifierElimination]: ElimStorePlain result: ∃ [|ULTIMATE.start_main_~#s~0.base|, |ULTIMATE.start_main_~#s~0.offset|]. (let ((.cse0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (and (= ULTIMATE.start_sll_length_~head.base .cse0) (= 0 ULTIMATE.start_sll_length_~head.offset) (not (= 0 (select (select |#memory_$Pointer$.base| .cse0) 0))))) [2020-07-28 18:09:33,563 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-28 18:09:33,564 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2020-07-28 18:09:33,573 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-28 18:09:33,575 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-28 18:09:33,576 INFO L544 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-28 18:09:33,576 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:24, output treesize:4 [2020-07-28 18:09:33,580 WARN L406 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2020-07-28 18:09:33,580 WARN L407 uantifierElimination]: Input elimination task: ∃ [|#memory_$Pointer$.base|, |ULTIMATE.start_main_~#s~0.base|, |ULTIMATE.start_main_~#s~0.offset|]. (let ((.cse0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (and (not (= 0 .cse0)) (= ULTIMATE.start_sll_length_~head.base .cse0))) [2020-07-28 18:09:33,580 WARN L408 uantifierElimination]: ElimStorePlain result: ∃ []. (not (= 0 ULTIMATE.start_sll_length_~head.base)) [2020-07-28 18:09:33,589 INFO L280 TraceCheckUtils]: 0: Hoare triple {1234#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {1234#true} is VALID [2020-07-28 18:09:33,589 INFO L280 TraceCheckUtils]: 1: Hoare triple {1234#true} havoc main_#res;havoc main_#t~ret14, main_#t~ret15.base, main_#t~ret15.offset, main_#t~ret16, main_#t~ret19, main_#t~post20, main_~position~0, main_#t~nondet17, main_#t~short18, main_#t~mem21.base, main_#t~mem21.offset, main_#t~ret22, main_#t~mem23.base, main_#t~mem23.offset, main_~len~2, main_~#s~0.base, main_~#s~0.offset, main_~k~0, main_~i~0;_get_nondet_int_#in~from, _get_nondet_int_#in~until := 2, 5;havoc _get_nondet_int_#res;havoc _get_nondet_int_#t~post13, _get_nondet_int_#t~nondet11, _get_nondet_int_#t~short12, _get_nondet_int_~from, _get_nondet_int_~until, _get_nondet_int_~len~1;_get_nondet_int_~from := _get_nondet_int_#in~from;_get_nondet_int_~until := _get_nondet_int_#in~until;_get_nondet_int_~len~1 := _get_nondet_int_~from; {1234#true} is VALID [2020-07-28 18:09:33,589 INFO L280 TraceCheckUtils]: 2: Hoare triple {1234#true} _get_nondet_int_#t~short12 := _get_nondet_int_~len~1 < _get_nondet_int_~until; {1234#true} is VALID [2020-07-28 18:09:33,589 INFO L280 TraceCheckUtils]: 3: Hoare triple {1234#true} assume _get_nondet_int_#t~short12;assume -2147483648 <= _get_nondet_int_#t~nondet11 && _get_nondet_int_#t~nondet11 <= 2147483647;_get_nondet_int_#t~short12 := 0 != _get_nondet_int_#t~nondet11; {1234#true} is VALID [2020-07-28 18:09:33,590 INFO L280 TraceCheckUtils]: 4: Hoare triple {1234#true} assume !_get_nondet_int_#t~short12;havoc _get_nondet_int_#t~nondet11;havoc _get_nondet_int_#t~short12; {1234#true} is VALID [2020-07-28 18:09:33,590 INFO L280 TraceCheckUtils]: 5: Hoare triple {1234#true} _get_nondet_int_#res := _get_nondet_int_~len~1; {1234#true} is VALID [2020-07-28 18:09:33,590 INFO L280 TraceCheckUtils]: 6: Hoare triple {1234#true} main_#t~ret14 := _get_nondet_int_#res;assume -2147483648 <= main_#t~ret14 && main_#t~ret14 <= 2147483647;main_~len~2 := main_#t~ret14;havoc main_#t~ret14;call main_~#s~0.base, main_~#s~0.offset := #Ultimate.allocOnStack(4);sll_create_#in~len := main_~len~2;havoc sll_create_#res.base, sll_create_#res.offset;havoc sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, sll_create_#t~post2, sll_create_~len, sll_create_~head~0.base, sll_create_~head~0.offset;sll_create_~len := sll_create_#in~len;sll_create_~head~0.base, sll_create_~head~0.offset := 0, 0; {1234#true} is VALID [2020-07-28 18:09:33,591 INFO L280 TraceCheckUtils]: 7: Hoare triple {1234#true} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {1234#true} is VALID [2020-07-28 18:09:33,592 INFO L280 TraceCheckUtils]: 8: Hoare triple {1234#true} assume !!(sll_create_#t~post2 > 0);havoc sll_create_#t~post2;call sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset := #Ultimate.allocOnHeap(4);sll_create_~new_head~0.base, sll_create_~new_head~0.offset := sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset; {1236#(= 0 ULTIMATE.start_sll_create_~new_head~0.offset)} is VALID [2020-07-28 18:09:33,593 INFO L280 TraceCheckUtils]: 9: Hoare triple {1236#(= 0 ULTIMATE.start_sll_create_~new_head~0.offset)} assume !(0 == sll_create_~new_head~0.base && 0 == sll_create_~new_head~0.offset); {1237#(not (= 0 ULTIMATE.start_sll_create_~new_head~0.base))} is VALID [2020-07-28 18:09:33,593 INFO L280 TraceCheckUtils]: 10: Hoare triple {1237#(not (= 0 ULTIMATE.start_sll_create_~new_head~0.base))} call write~$Pointer$(sll_create_~head~0.base, sll_create_~head~0.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, 4);sll_create_~head~0.base, sll_create_~head~0.offset := sll_create_~new_head~0.base, sll_create_~new_head~0.offset; {1238#(not (= 0 ULTIMATE.start_sll_create_~head~0.base))} is VALID [2020-07-28 18:09:33,594 INFO L280 TraceCheckUtils]: 11: Hoare triple {1238#(not (= 0 ULTIMATE.start_sll_create_~head~0.base))} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {1238#(not (= 0 ULTIMATE.start_sll_create_~head~0.base))} is VALID [2020-07-28 18:09:33,595 INFO L280 TraceCheckUtils]: 12: Hoare triple {1238#(not (= 0 ULTIMATE.start_sll_create_~head~0.base))} assume !!(sll_create_#t~post2 > 0);havoc sll_create_#t~post2;call sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset := #Ultimate.allocOnHeap(4);sll_create_~new_head~0.base, sll_create_~new_head~0.offset := sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset; {1283#(and (not (= 0 ULTIMATE.start_sll_create_~head~0.base)) (= 0 ULTIMATE.start_sll_create_~new_head~0.offset))} is VALID [2020-07-28 18:09:33,596 INFO L280 TraceCheckUtils]: 13: Hoare triple {1283#(and (not (= 0 ULTIMATE.start_sll_create_~head~0.base)) (= 0 ULTIMATE.start_sll_create_~new_head~0.offset))} assume !(0 == sll_create_~new_head~0.base && 0 == sll_create_~new_head~0.offset); {1283#(and (not (= 0 ULTIMATE.start_sll_create_~head~0.base)) (= 0 ULTIMATE.start_sll_create_~new_head~0.offset))} is VALID [2020-07-28 18:09:33,596 INFO L280 TraceCheckUtils]: 14: Hoare triple {1283#(and (not (= 0 ULTIMATE.start_sll_create_~head~0.base)) (= 0 ULTIMATE.start_sll_create_~new_head~0.offset))} call write~$Pointer$(sll_create_~head~0.base, sll_create_~head~0.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, 4);sll_create_~head~0.base, sll_create_~head~0.offset := sll_create_~new_head~0.base, sll_create_~new_head~0.offset; {1290#(and (not (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) 0))) (= 0 ULTIMATE.start_sll_create_~head~0.offset))} is VALID [2020-07-28 18:09:33,597 INFO L280 TraceCheckUtils]: 15: Hoare triple {1290#(and (not (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) 0))) (= 0 ULTIMATE.start_sll_create_~head~0.offset))} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {1290#(and (not (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) 0))) (= 0 ULTIMATE.start_sll_create_~head~0.offset))} is VALID [2020-07-28 18:09:33,598 INFO L280 TraceCheckUtils]: 16: Hoare triple {1290#(and (not (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) 0))) (= 0 ULTIMATE.start_sll_create_~head~0.offset))} assume !(sll_create_#t~post2 > 0);havoc sll_create_#t~post2; {1290#(and (not (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) 0))) (= 0 ULTIMATE.start_sll_create_~head~0.offset))} is VALID [2020-07-28 18:09:33,599 INFO L280 TraceCheckUtils]: 17: Hoare triple {1290#(and (not (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) 0))) (= 0 ULTIMATE.start_sll_create_~head~0.offset))} sll_create_#res.base, sll_create_#res.offset := sll_create_~head~0.base, sll_create_~head~0.offset; {1300#(and (= 0 |ULTIMATE.start_sll_create_#res.offset|) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_create_#res.base|) 0) 0)))} is VALID [2020-07-28 18:09:33,599 INFO L280 TraceCheckUtils]: 18: Hoare triple {1300#(and (= 0 |ULTIMATE.start_sll_create_#res.offset|) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_create_#res.base|) 0) 0)))} main_#t~ret15.base, main_#t~ret15.offset := sll_create_#res.base, sll_create_#res.offset;call write~init~$Pointer$(main_#t~ret15.base, main_#t~ret15.offset, main_~#s~0.base, main_~#s~0.offset, 4);havoc main_#t~ret15.base, main_#t~ret15.offset;_get_nondet_int_#in~from, _get_nondet_int_#in~until := 0, main_~len~2 - 1;havoc _get_nondet_int_#res;havoc _get_nondet_int_#t~post13, _get_nondet_int_#t~nondet11, _get_nondet_int_#t~short12, _get_nondet_int_~from, _get_nondet_int_~until, _get_nondet_int_~len~1;_get_nondet_int_~from := _get_nondet_int_#in~from;_get_nondet_int_~until := _get_nondet_int_#in~until;_get_nondet_int_~len~1 := _get_nondet_int_~from; {1304#(and (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))} is VALID [2020-07-28 18:09:33,600 INFO L280 TraceCheckUtils]: 19: Hoare triple {1304#(and (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))} _get_nondet_int_#t~short12 := _get_nondet_int_~len~1 < _get_nondet_int_~until; {1304#(and (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))} is VALID [2020-07-28 18:09:33,601 INFO L280 TraceCheckUtils]: 20: Hoare triple {1304#(and (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))} assume _get_nondet_int_#t~short12;assume -2147483648 <= _get_nondet_int_#t~nondet11 && _get_nondet_int_#t~nondet11 <= 2147483647;_get_nondet_int_#t~short12 := 0 != _get_nondet_int_#t~nondet11; {1304#(and (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))} is VALID [2020-07-28 18:09:33,602 INFO L280 TraceCheckUtils]: 21: Hoare triple {1304#(and (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))} assume !_get_nondet_int_#t~short12;havoc _get_nondet_int_#t~nondet11;havoc _get_nondet_int_#t~short12; {1304#(and (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))} is VALID [2020-07-28 18:09:33,603 INFO L280 TraceCheckUtils]: 22: Hoare triple {1304#(and (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))} _get_nondet_int_#res := _get_nondet_int_~len~1; {1304#(and (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))} is VALID [2020-07-28 18:09:33,604 INFO L280 TraceCheckUtils]: 23: Hoare triple {1304#(and (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))} main_#t~ret16 := _get_nondet_int_#res;assume -2147483648 <= main_#t~ret16 && main_#t~ret16 <= 2147483647;main_~k~0 := main_#t~ret16;havoc main_#t~ret16;main_~i~0 := 0; {1304#(and (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))} is VALID [2020-07-28 18:09:33,605 INFO L280 TraceCheckUtils]: 24: Hoare triple {1304#(and (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))} main_#t~short18 := main_~i~0 < main_~k~0; {1304#(and (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))} is VALID [2020-07-28 18:09:33,606 INFO L280 TraceCheckUtils]: 25: Hoare triple {1304#(and (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))} assume !main_#t~short18; {1304#(and (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))} is VALID [2020-07-28 18:09:33,608 INFO L280 TraceCheckUtils]: 26: Hoare triple {1304#(and (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))} assume !main_#t~short18;havoc main_#t~nondet17;havoc main_#t~short18; {1304#(and (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))} is VALID [2020-07-28 18:09:33,610 INFO L280 TraceCheckUtils]: 27: Hoare triple {1304#(and (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))} call main_#t~mem21.base, main_#t~mem21.offset := read~$Pointer$(main_~#s~0.base, main_~#s~0.offset, 4);sll_length_#in~head.base, sll_length_#in~head.offset := main_#t~mem21.base, main_#t~mem21.offset;havoc sll_length_#res;havoc sll_length_#t~post4, sll_length_#t~mem5.base, sll_length_#t~mem5.offset, sll_length_~head.base, sll_length_~head.offset, sll_length_~len~0;sll_length_~head.base, sll_length_~head.offset := sll_length_#in~head.base, sll_length_#in~head.offset;sll_length_~len~0 := 0; {1332#(and (= 0 ULTIMATE.start_sll_length_~head.offset) (exists ((|ULTIMATE.start_main_~#s~0.base| Int) (|ULTIMATE.start_main_~#s~0.offset| Int)) (and (= ULTIMATE.start_sll_length_~head.base (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))))))} is VALID [2020-07-28 18:09:33,612 INFO L280 TraceCheckUtils]: 28: Hoare triple {1332#(and (= 0 ULTIMATE.start_sll_length_~head.offset) (exists ((|ULTIMATE.start_main_~#s~0.base| Int) (|ULTIMATE.start_main_~#s~0.offset| Int)) (and (= ULTIMATE.start_sll_length_~head.base (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (not (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))))))} assume !!(sll_length_~head.base != 0 || sll_length_~head.offset != 0);sll_length_#t~post4 := sll_length_~len~0;sll_length_~len~0 := 1 + sll_length_#t~post4;havoc sll_length_#t~post4;call sll_length_#t~mem5.base, sll_length_#t~mem5.offset := read~$Pointer$(sll_length_~head.base, sll_length_~head.offset, 4);sll_length_~head.base, sll_length_~head.offset := sll_length_#t~mem5.base, sll_length_#t~mem5.offset;havoc sll_length_#t~mem5.base, sll_length_#t~mem5.offset; {1243#(not (= 0 ULTIMATE.start_sll_length_~head.base))} is VALID [2020-07-28 18:09:33,613 INFO L280 TraceCheckUtils]: 29: Hoare triple {1243#(not (= 0 ULTIMATE.start_sll_length_~head.base))} assume !(sll_length_~head.base != 0 || sll_length_~head.offset != 0); {1235#false} is VALID [2020-07-28 18:09:33,614 INFO L280 TraceCheckUtils]: 30: Hoare triple {1235#false} sll_length_#res := sll_length_~len~0; {1235#false} is VALID [2020-07-28 18:09:33,614 INFO L280 TraceCheckUtils]: 31: Hoare triple {1235#false} main_#t~ret22 := sll_length_#res;assume -2147483648 <= main_#t~ret22 && main_#t~ret22 <= 2147483647; {1235#false} is VALID [2020-07-28 18:09:33,614 INFO L280 TraceCheckUtils]: 32: Hoare triple {1235#false} assume main_~k~0 + main_~len~2 != main_#t~ret22;havoc main_#t~mem21.base, main_#t~mem21.offset;havoc main_#t~ret22; {1235#false} is VALID [2020-07-28 18:09:33,614 INFO L280 TraceCheckUtils]: 33: Hoare triple {1235#false} assume !false; {1235#false} is VALID [2020-07-28 18:09:33,619 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:09:33,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-28 18:09:33,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 15 [2020-07-28 18:09:33,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623402860] [2020-07-28 18:09:33,621 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 34 [2020-07-28 18:09:33,622 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:09:33,622 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 15 states. [2020-07-28 18:09:33,691 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 51 edges. 51 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:09:33,691 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-28 18:09:33,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:09:33,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-28 18:09:33,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-07-28 18:09:33,692 INFO L87 Difference]: Start difference. First operand 51 states and 64 transitions. Second operand 15 states. [2020-07-28 18:09:35,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:09:35,030 INFO L93 Difference]: Finished difference Result 75 states and 91 transitions. [2020-07-28 18:09:35,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-28 18:09:35,030 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 34 [2020-07-28 18:09:35,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:09:35,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-28 18:09:35,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 91 transitions. [2020-07-28 18:09:35,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-28 18:09:35,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 91 transitions. [2020-07-28 18:09:35,036 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 91 transitions. [2020-07-28 18:09:35,156 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 91 edges. 91 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:09:35,162 INFO L225 Difference]: With dead ends: 75 [2020-07-28 18:09:35,162 INFO L226 Difference]: Without dead ends: 70 [2020-07-28 18:09:35,164 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2020-07-28 18:09:35,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-07-28 18:09:35,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 52. [2020-07-28 18:09:35,259 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:09:35,260 INFO L82 GeneralOperation]: Start isEquivalent. First operand 70 states. Second operand 52 states. [2020-07-28 18:09:35,260 INFO L74 IsIncluded]: Start isIncluded. First operand 70 states. Second operand 52 states. [2020-07-28 18:09:35,260 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 52 states. [2020-07-28 18:09:35,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:09:35,263 INFO L93 Difference]: Finished difference Result 70 states and 86 transitions. [2020-07-28 18:09:35,263 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 86 transitions. [2020-07-28 18:09:35,263 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:09:35,263 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:09:35,263 INFO L74 IsIncluded]: Start isIncluded. First operand 52 states. Second operand 70 states. [2020-07-28 18:09:35,264 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 70 states. [2020-07-28 18:09:35,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:09:35,266 INFO L93 Difference]: Finished difference Result 70 states and 86 transitions. [2020-07-28 18:09:35,266 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 86 transitions. [2020-07-28 18:09:35,267 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:09:35,267 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:09:35,267 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:09:35,267 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:09:35,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-07-28 18:09:35,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 65 transitions. [2020-07-28 18:09:35,269 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 65 transitions. Word has length 34 [2020-07-28 18:09:35,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:09:35,269 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 65 transitions. [2020-07-28 18:09:35,269 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-28 18:09:35,269 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 65 transitions. [2020-07-28 18:09:35,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-07-28 18:09:35,270 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:09:35,270 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:09:35,471 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-28 18:09:35,471 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:09:35,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:09:35,471 INFO L82 PathProgramCache]: Analyzing trace with hash 217180203, now seen corresponding path program 2 times [2020-07-28 18:09:35,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:09:35,472 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685966742] [2020-07-28 18:09:35,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:09:35,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:09:35,850 INFO L280 TraceCheckUtils]: 0: Hoare triple {1677#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {1677#true} is VALID [2020-07-28 18:09:35,851 INFO L280 TraceCheckUtils]: 1: Hoare triple {1677#true} havoc main_#res;havoc main_#t~ret14, main_#t~ret15.base, main_#t~ret15.offset, main_#t~ret16, main_#t~ret19, main_#t~post20, main_~position~0, main_#t~nondet17, main_#t~short18, main_#t~mem21.base, main_#t~mem21.offset, main_#t~ret22, main_#t~mem23.base, main_#t~mem23.offset, main_~len~2, main_~#s~0.base, main_~#s~0.offset, main_~k~0, main_~i~0;_get_nondet_int_#in~from, _get_nondet_int_#in~until := 2, 5;havoc _get_nondet_int_#res;havoc _get_nondet_int_#t~post13, _get_nondet_int_#t~nondet11, _get_nondet_int_#t~short12, _get_nondet_int_~from, _get_nondet_int_~until, _get_nondet_int_~len~1;_get_nondet_int_~from := _get_nondet_int_#in~from;_get_nondet_int_~until := _get_nondet_int_#in~until;_get_nondet_int_~len~1 := _get_nondet_int_~from; {1679#(and (<= ULTIMATE.start__get_nondet_int_~len~1 2) (<= 2 ULTIMATE.start__get_nondet_int_~len~1))} is VALID [2020-07-28 18:09:35,852 INFO L280 TraceCheckUtils]: 2: Hoare triple {1679#(and (<= ULTIMATE.start__get_nondet_int_~len~1 2) (<= 2 ULTIMATE.start__get_nondet_int_~len~1))} _get_nondet_int_#t~short12 := _get_nondet_int_~len~1 < _get_nondet_int_~until; {1679#(and (<= ULTIMATE.start__get_nondet_int_~len~1 2) (<= 2 ULTIMATE.start__get_nondet_int_~len~1))} is VALID [2020-07-28 18:09:35,858 INFO L280 TraceCheckUtils]: 3: Hoare triple {1679#(and (<= ULTIMATE.start__get_nondet_int_~len~1 2) (<= 2 ULTIMATE.start__get_nondet_int_~len~1))} assume _get_nondet_int_#t~short12;assume -2147483648 <= _get_nondet_int_#t~nondet11 && _get_nondet_int_#t~nondet11 <= 2147483647;_get_nondet_int_#t~short12 := 0 != _get_nondet_int_#t~nondet11; {1679#(and (<= ULTIMATE.start__get_nondet_int_~len~1 2) (<= 2 ULTIMATE.start__get_nondet_int_~len~1))} is VALID [2020-07-28 18:09:35,859 INFO L280 TraceCheckUtils]: 4: Hoare triple {1679#(and (<= ULTIMATE.start__get_nondet_int_~len~1 2) (<= 2 ULTIMATE.start__get_nondet_int_~len~1))} assume !_get_nondet_int_#t~short12;havoc _get_nondet_int_#t~nondet11;havoc _get_nondet_int_#t~short12; {1679#(and (<= ULTIMATE.start__get_nondet_int_~len~1 2) (<= 2 ULTIMATE.start__get_nondet_int_~len~1))} is VALID [2020-07-28 18:09:35,859 INFO L280 TraceCheckUtils]: 5: Hoare triple {1679#(and (<= ULTIMATE.start__get_nondet_int_~len~1 2) (<= 2 ULTIMATE.start__get_nondet_int_~len~1))} _get_nondet_int_#res := _get_nondet_int_~len~1; {1680#(and (<= 2 |ULTIMATE.start__get_nondet_int_#res|) (<= |ULTIMATE.start__get_nondet_int_#res| 2))} is VALID [2020-07-28 18:09:35,860 INFO L280 TraceCheckUtils]: 6: Hoare triple {1680#(and (<= 2 |ULTIMATE.start__get_nondet_int_#res|) (<= |ULTIMATE.start__get_nondet_int_#res| 2))} main_#t~ret14 := _get_nondet_int_#res;assume -2147483648 <= main_#t~ret14 && main_#t~ret14 <= 2147483647;main_~len~2 := main_#t~ret14;havoc main_#t~ret14;call main_~#s~0.base, main_~#s~0.offset := #Ultimate.allocOnStack(4);sll_create_#in~len := main_~len~2;havoc sll_create_#res.base, sll_create_#res.offset;havoc sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, sll_create_#t~post2, sll_create_~len, sll_create_~head~0.base, sll_create_~head~0.offset;sll_create_~len := sll_create_#in~len;sll_create_~head~0.base, sll_create_~head~0.offset := 0, 0; {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} is VALID [2020-07-28 18:09:35,860 INFO L280 TraceCheckUtils]: 7: Hoare triple {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} is VALID [2020-07-28 18:09:35,861 INFO L280 TraceCheckUtils]: 8: Hoare triple {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} assume !!(sll_create_#t~post2 > 0);havoc sll_create_#t~post2;call sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset := #Ultimate.allocOnHeap(4);sll_create_~new_head~0.base, sll_create_~new_head~0.offset := sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset; {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} is VALID [2020-07-28 18:09:35,862 INFO L280 TraceCheckUtils]: 9: Hoare triple {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} assume !(0 == sll_create_~new_head~0.base && 0 == sll_create_~new_head~0.offset); {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} is VALID [2020-07-28 18:09:35,863 INFO L280 TraceCheckUtils]: 10: Hoare triple {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} call write~$Pointer$(sll_create_~head~0.base, sll_create_~head~0.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, 4);sll_create_~head~0.base, sll_create_~head~0.offset := sll_create_~new_head~0.base, sll_create_~new_head~0.offset; {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} is VALID [2020-07-28 18:09:35,864 INFO L280 TraceCheckUtils]: 11: Hoare triple {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} is VALID [2020-07-28 18:09:35,865 INFO L280 TraceCheckUtils]: 12: Hoare triple {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} assume !!(sll_create_#t~post2 > 0);havoc sll_create_#t~post2;call sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset := #Ultimate.allocOnHeap(4);sll_create_~new_head~0.base, sll_create_~new_head~0.offset := sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset; {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} is VALID [2020-07-28 18:09:35,865 INFO L280 TraceCheckUtils]: 13: Hoare triple {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} assume !(0 == sll_create_~new_head~0.base && 0 == sll_create_~new_head~0.offset); {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} is VALID [2020-07-28 18:09:35,872 INFO L280 TraceCheckUtils]: 14: Hoare triple {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} call write~$Pointer$(sll_create_~head~0.base, sll_create_~head~0.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, 4);sll_create_~head~0.base, sll_create_~head~0.offset := sll_create_~new_head~0.base, sll_create_~new_head~0.offset; {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} is VALID [2020-07-28 18:09:35,873 INFO L280 TraceCheckUtils]: 15: Hoare triple {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} is VALID [2020-07-28 18:09:35,874 INFO L280 TraceCheckUtils]: 16: Hoare triple {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} assume !(sll_create_#t~post2 > 0);havoc sll_create_#t~post2; {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} is VALID [2020-07-28 18:09:35,875 INFO L280 TraceCheckUtils]: 17: Hoare triple {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} sll_create_#res.base, sll_create_#res.offset := sll_create_~head~0.base, sll_create_~head~0.offset; {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} is VALID [2020-07-28 18:09:35,876 INFO L280 TraceCheckUtils]: 18: Hoare triple {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} main_#t~ret15.base, main_#t~ret15.offset := sll_create_#res.base, sll_create_#res.offset;call write~init~$Pointer$(main_#t~ret15.base, main_#t~ret15.offset, main_~#s~0.base, main_~#s~0.offset, 4);havoc main_#t~ret15.base, main_#t~ret15.offset;_get_nondet_int_#in~from, _get_nondet_int_#in~until := 0, main_~len~2 - 1;havoc _get_nondet_int_#res;havoc _get_nondet_int_#t~post13, _get_nondet_int_#t~nondet11, _get_nondet_int_#t~short12, _get_nondet_int_~from, _get_nondet_int_~until, _get_nondet_int_~len~1;_get_nondet_int_~from := _get_nondet_int_#in~from;_get_nondet_int_~until := _get_nondet_int_#in~until;_get_nondet_int_~len~1 := _get_nondet_int_~from; {1682#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start__get_nondet_int_~len~1))} is VALID [2020-07-28 18:09:35,878 INFO L280 TraceCheckUtils]: 19: Hoare triple {1682#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start__get_nondet_int_~len~1))} _get_nondet_int_#t~short12 := _get_nondet_int_~len~1 < _get_nondet_int_~until; {1682#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start__get_nondet_int_~len~1))} is VALID [2020-07-28 18:09:35,879 INFO L280 TraceCheckUtils]: 20: Hoare triple {1682#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start__get_nondet_int_~len~1))} assume _get_nondet_int_#t~short12;assume -2147483648 <= _get_nondet_int_#t~nondet11 && _get_nondet_int_#t~nondet11 <= 2147483647;_get_nondet_int_#t~short12 := 0 != _get_nondet_int_#t~nondet11; {1682#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start__get_nondet_int_~len~1))} is VALID [2020-07-28 18:09:35,880 INFO L280 TraceCheckUtils]: 21: Hoare triple {1682#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start__get_nondet_int_~len~1))} assume !_get_nondet_int_#t~short12;havoc _get_nondet_int_#t~nondet11;havoc _get_nondet_int_#t~short12; {1682#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start__get_nondet_int_~len~1))} is VALID [2020-07-28 18:09:35,880 INFO L280 TraceCheckUtils]: 22: Hoare triple {1682#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start__get_nondet_int_~len~1))} _get_nondet_int_#res := _get_nondet_int_~len~1; {1683#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 |ULTIMATE.start__get_nondet_int_#res|))} is VALID [2020-07-28 18:09:35,881 INFO L280 TraceCheckUtils]: 23: Hoare triple {1683#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 |ULTIMATE.start__get_nondet_int_#res|))} main_#t~ret16 := _get_nondet_int_#res;assume -2147483648 <= main_#t~ret16 && main_#t~ret16 <= 2147483647;main_~k~0 := main_#t~ret16;havoc main_#t~ret16;main_~i~0 := 0; {1684#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start_main_~k~0))} is VALID [2020-07-28 18:09:35,881 INFO L280 TraceCheckUtils]: 24: Hoare triple {1684#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start_main_~k~0))} main_#t~short18 := main_~i~0 < main_~k~0; {1684#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start_main_~k~0))} is VALID [2020-07-28 18:09:35,882 INFO L280 TraceCheckUtils]: 25: Hoare triple {1684#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start_main_~k~0))} assume !main_#t~short18; {1684#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start_main_~k~0))} is VALID [2020-07-28 18:09:35,883 INFO L280 TraceCheckUtils]: 26: Hoare triple {1684#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start_main_~k~0))} assume !main_#t~short18;havoc main_#t~nondet17;havoc main_#t~short18; {1684#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start_main_~k~0))} is VALID [2020-07-28 18:09:35,884 INFO L280 TraceCheckUtils]: 27: Hoare triple {1684#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start_main_~k~0))} call main_#t~mem21.base, main_#t~mem21.offset := read~$Pointer$(main_~#s~0.base, main_~#s~0.offset, 4);sll_length_#in~head.base, sll_length_#in~head.offset := main_#t~mem21.base, main_#t~mem21.offset;havoc sll_length_#res;havoc sll_length_#t~post4, sll_length_#t~mem5.base, sll_length_#t~mem5.offset, sll_length_~head.base, sll_length_~head.offset, sll_length_~len~0;sll_length_~head.base, sll_length_~head.offset := sll_length_#in~head.base, sll_length_#in~head.offset;sll_length_~len~0 := 0; {1685#(and (<= 2 ULTIMATE.start_main_~len~2) (= 0 ULTIMATE.start_sll_length_~len~0) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start_main_~k~0))} is VALID [2020-07-28 18:09:35,885 INFO L280 TraceCheckUtils]: 28: Hoare triple {1685#(and (<= 2 ULTIMATE.start_main_~len~2) (= 0 ULTIMATE.start_sll_length_~len~0) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start_main_~k~0))} assume !!(sll_length_~head.base != 0 || sll_length_~head.offset != 0);sll_length_#t~post4 := sll_length_~len~0;sll_length_~len~0 := 1 + sll_length_#t~post4;havoc sll_length_#t~post4;call sll_length_#t~mem5.base, sll_length_#t~mem5.offset := read~$Pointer$(sll_length_~head.base, sll_length_~head.offset, 4);sll_length_~head.base, sll_length_~head.offset := sll_length_#t~mem5.base, sll_length_#t~mem5.offset;havoc sll_length_#t~mem5.base, sll_length_#t~mem5.offset; {1686#(and (<= ULTIMATE.start_main_~len~2 (+ ULTIMATE.start_sll_length_~len~0 1)) (<= (+ ULTIMATE.start_sll_length_~len~0 1) ULTIMATE.start_main_~len~2) (= 0 ULTIMATE.start_main_~k~0))} is VALID [2020-07-28 18:09:35,886 INFO L280 TraceCheckUtils]: 29: Hoare triple {1686#(and (<= ULTIMATE.start_main_~len~2 (+ ULTIMATE.start_sll_length_~len~0 1)) (<= (+ ULTIMATE.start_sll_length_~len~0 1) ULTIMATE.start_main_~len~2) (= 0 ULTIMATE.start_main_~k~0))} assume !!(sll_length_~head.base != 0 || sll_length_~head.offset != 0);sll_length_#t~post4 := sll_length_~len~0;sll_length_~len~0 := 1 + sll_length_#t~post4;havoc sll_length_#t~post4;call sll_length_#t~mem5.base, sll_length_#t~mem5.offset := read~$Pointer$(sll_length_~head.base, sll_length_~head.offset, 4);sll_length_~head.base, sll_length_~head.offset := sll_length_#t~mem5.base, sll_length_#t~mem5.offset;havoc sll_length_#t~mem5.base, sll_length_#t~mem5.offset; {1687#(and (<= ULTIMATE.start_main_~len~2 ULTIMATE.start_sll_length_~len~0) (<= ULTIMATE.start_sll_length_~len~0 ULTIMATE.start_main_~len~2) (= 0 ULTIMATE.start_main_~k~0))} is VALID [2020-07-28 18:09:35,887 INFO L280 TraceCheckUtils]: 30: Hoare triple {1687#(and (<= ULTIMATE.start_main_~len~2 ULTIMATE.start_sll_length_~len~0) (<= ULTIMATE.start_sll_length_~len~0 ULTIMATE.start_main_~len~2) (= 0 ULTIMATE.start_main_~k~0))} assume !(sll_length_~head.base != 0 || sll_length_~head.offset != 0); {1687#(and (<= ULTIMATE.start_main_~len~2 ULTIMATE.start_sll_length_~len~0) (<= ULTIMATE.start_sll_length_~len~0 ULTIMATE.start_main_~len~2) (= 0 ULTIMATE.start_main_~k~0))} is VALID [2020-07-28 18:09:35,887 INFO L280 TraceCheckUtils]: 31: Hoare triple {1687#(and (<= ULTIMATE.start_main_~len~2 ULTIMATE.start_sll_length_~len~0) (<= ULTIMATE.start_sll_length_~len~0 ULTIMATE.start_main_~len~2) (= 0 ULTIMATE.start_main_~k~0))} sll_length_#res := sll_length_~len~0; {1688#(and (<= ULTIMATE.start_main_~len~2 |ULTIMATE.start_sll_length_#res|) (= 0 ULTIMATE.start_main_~k~0) (<= |ULTIMATE.start_sll_length_#res| ULTIMATE.start_main_~len~2))} is VALID [2020-07-28 18:09:35,888 INFO L280 TraceCheckUtils]: 32: Hoare triple {1688#(and (<= ULTIMATE.start_main_~len~2 |ULTIMATE.start_sll_length_#res|) (= 0 ULTIMATE.start_main_~k~0) (<= |ULTIMATE.start_sll_length_#res| ULTIMATE.start_main_~len~2))} main_#t~ret22 := sll_length_#res;assume -2147483648 <= main_#t~ret22 && main_#t~ret22 <= 2147483647; {1689#(and (= 0 ULTIMATE.start_main_~k~0) (<= ULTIMATE.start_main_~len~2 |ULTIMATE.start_main_#t~ret22|) (<= |ULTIMATE.start_main_#t~ret22| ULTIMATE.start_main_~len~2))} is VALID [2020-07-28 18:09:35,889 INFO L280 TraceCheckUtils]: 33: Hoare triple {1689#(and (= 0 ULTIMATE.start_main_~k~0) (<= ULTIMATE.start_main_~len~2 |ULTIMATE.start_main_#t~ret22|) (<= |ULTIMATE.start_main_#t~ret22| ULTIMATE.start_main_~len~2))} assume main_~k~0 + main_~len~2 != main_#t~ret22;havoc main_#t~mem21.base, main_#t~mem21.offset;havoc main_#t~ret22; {1678#false} is VALID [2020-07-28 18:09:35,889 INFO L280 TraceCheckUtils]: 34: Hoare triple {1678#false} assume !false; {1678#false} is VALID [2020-07-28 18:09:35,892 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-28 18:09:35,892 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685966742] [2020-07-28 18:09:35,893 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927237426] [2020-07-28 18:09:35,893 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-28 18:09:35,954 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-07-28 18:09:35,955 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-28 18:09:35,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 31 conjunts are in the unsatisfiable core [2020-07-28 18:09:35,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:09:35,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 18:09:36,242 INFO L280 TraceCheckUtils]: 0: Hoare triple {1677#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {1677#true} is VALID [2020-07-28 18:09:36,244 INFO L280 TraceCheckUtils]: 1: Hoare triple {1677#true} havoc main_#res;havoc main_#t~ret14, main_#t~ret15.base, main_#t~ret15.offset, main_#t~ret16, main_#t~ret19, main_#t~post20, main_~position~0, main_#t~nondet17, main_#t~short18, main_#t~mem21.base, main_#t~mem21.offset, main_#t~ret22, main_#t~mem23.base, main_#t~mem23.offset, main_~len~2, main_~#s~0.base, main_~#s~0.offset, main_~k~0, main_~i~0;_get_nondet_int_#in~from, _get_nondet_int_#in~until := 2, 5;havoc _get_nondet_int_#res;havoc _get_nondet_int_#t~post13, _get_nondet_int_#t~nondet11, _get_nondet_int_#t~short12, _get_nondet_int_~from, _get_nondet_int_~until, _get_nondet_int_~len~1;_get_nondet_int_~from := _get_nondet_int_#in~from;_get_nondet_int_~until := _get_nondet_int_#in~until;_get_nondet_int_~len~1 := _get_nondet_int_~from; {1679#(and (<= ULTIMATE.start__get_nondet_int_~len~1 2) (<= 2 ULTIMATE.start__get_nondet_int_~len~1))} is VALID [2020-07-28 18:09:36,249 INFO L280 TraceCheckUtils]: 2: Hoare triple {1679#(and (<= ULTIMATE.start__get_nondet_int_~len~1 2) (<= 2 ULTIMATE.start__get_nondet_int_~len~1))} _get_nondet_int_#t~short12 := _get_nondet_int_~len~1 < _get_nondet_int_~until; {1679#(and (<= ULTIMATE.start__get_nondet_int_~len~1 2) (<= 2 ULTIMATE.start__get_nondet_int_~len~1))} is VALID [2020-07-28 18:09:36,250 INFO L280 TraceCheckUtils]: 3: Hoare triple {1679#(and (<= ULTIMATE.start__get_nondet_int_~len~1 2) (<= 2 ULTIMATE.start__get_nondet_int_~len~1))} assume _get_nondet_int_#t~short12;assume -2147483648 <= _get_nondet_int_#t~nondet11 && _get_nondet_int_#t~nondet11 <= 2147483647;_get_nondet_int_#t~short12 := 0 != _get_nondet_int_#t~nondet11; {1679#(and (<= ULTIMATE.start__get_nondet_int_~len~1 2) (<= 2 ULTIMATE.start__get_nondet_int_~len~1))} is VALID [2020-07-28 18:09:36,251 INFO L280 TraceCheckUtils]: 4: Hoare triple {1679#(and (<= ULTIMATE.start__get_nondet_int_~len~1 2) (<= 2 ULTIMATE.start__get_nondet_int_~len~1))} assume !_get_nondet_int_#t~short12;havoc _get_nondet_int_#t~nondet11;havoc _get_nondet_int_#t~short12; {1679#(and (<= ULTIMATE.start__get_nondet_int_~len~1 2) (<= 2 ULTIMATE.start__get_nondet_int_~len~1))} is VALID [2020-07-28 18:09:36,251 INFO L280 TraceCheckUtils]: 5: Hoare triple {1679#(and (<= ULTIMATE.start__get_nondet_int_~len~1 2) (<= 2 ULTIMATE.start__get_nondet_int_~len~1))} _get_nondet_int_#res := _get_nondet_int_~len~1; {1680#(and (<= 2 |ULTIMATE.start__get_nondet_int_#res|) (<= |ULTIMATE.start__get_nondet_int_#res| 2))} is VALID [2020-07-28 18:09:36,252 INFO L280 TraceCheckUtils]: 6: Hoare triple {1680#(and (<= 2 |ULTIMATE.start__get_nondet_int_#res|) (<= |ULTIMATE.start__get_nondet_int_#res| 2))} main_#t~ret14 := _get_nondet_int_#res;assume -2147483648 <= main_#t~ret14 && main_#t~ret14 <= 2147483647;main_~len~2 := main_#t~ret14;havoc main_#t~ret14;call main_~#s~0.base, main_~#s~0.offset := #Ultimate.allocOnStack(4);sll_create_#in~len := main_~len~2;havoc sll_create_#res.base, sll_create_#res.offset;havoc sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, sll_create_#t~post2, sll_create_~len, sll_create_~head~0.base, sll_create_~head~0.offset;sll_create_~len := sll_create_#in~len;sll_create_~head~0.base, sll_create_~head~0.offset := 0, 0; {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} is VALID [2020-07-28 18:09:36,253 INFO L280 TraceCheckUtils]: 7: Hoare triple {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} is VALID [2020-07-28 18:09:36,253 INFO L280 TraceCheckUtils]: 8: Hoare triple {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} assume !!(sll_create_#t~post2 > 0);havoc sll_create_#t~post2;call sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset := #Ultimate.allocOnHeap(4);sll_create_~new_head~0.base, sll_create_~new_head~0.offset := sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset; {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} is VALID [2020-07-28 18:09:36,254 INFO L280 TraceCheckUtils]: 9: Hoare triple {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} assume !(0 == sll_create_~new_head~0.base && 0 == sll_create_~new_head~0.offset); {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} is VALID [2020-07-28 18:09:36,255 INFO L280 TraceCheckUtils]: 10: Hoare triple {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} call write~$Pointer$(sll_create_~head~0.base, sll_create_~head~0.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, 4);sll_create_~head~0.base, sll_create_~head~0.offset := sll_create_~new_head~0.base, sll_create_~new_head~0.offset; {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} is VALID [2020-07-28 18:09:36,256 INFO L280 TraceCheckUtils]: 11: Hoare triple {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} is VALID [2020-07-28 18:09:36,257 INFO L280 TraceCheckUtils]: 12: Hoare triple {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} assume !!(sll_create_#t~post2 > 0);havoc sll_create_#t~post2;call sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset := #Ultimate.allocOnHeap(4);sll_create_~new_head~0.base, sll_create_~new_head~0.offset := sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset; {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} is VALID [2020-07-28 18:09:36,257 INFO L280 TraceCheckUtils]: 13: Hoare triple {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} assume !(0 == sll_create_~new_head~0.base && 0 == sll_create_~new_head~0.offset); {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} is VALID [2020-07-28 18:09:36,259 INFO L280 TraceCheckUtils]: 14: Hoare triple {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} call write~$Pointer$(sll_create_~head~0.base, sll_create_~head~0.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, 4);sll_create_~head~0.base, sll_create_~head~0.offset := sll_create_~new_head~0.base, sll_create_~new_head~0.offset; {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} is VALID [2020-07-28 18:09:36,260 INFO L280 TraceCheckUtils]: 15: Hoare triple {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} is VALID [2020-07-28 18:09:36,262 INFO L280 TraceCheckUtils]: 16: Hoare triple {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} assume !(sll_create_#t~post2 > 0);havoc sll_create_#t~post2; {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} is VALID [2020-07-28 18:09:36,263 INFO L280 TraceCheckUtils]: 17: Hoare triple {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} sll_create_#res.base, sll_create_#res.offset := sll_create_~head~0.base, sll_create_~head~0.offset; {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} is VALID [2020-07-28 18:09:36,266 INFO L280 TraceCheckUtils]: 18: Hoare triple {1681#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2))} main_#t~ret15.base, main_#t~ret15.offset := sll_create_#res.base, sll_create_#res.offset;call write~init~$Pointer$(main_#t~ret15.base, main_#t~ret15.offset, main_~#s~0.base, main_~#s~0.offset, 4);havoc main_#t~ret15.base, main_#t~ret15.offset;_get_nondet_int_#in~from, _get_nondet_int_#in~until := 0, main_~len~2 - 1;havoc _get_nondet_int_#res;havoc _get_nondet_int_#t~post13, _get_nondet_int_#t~nondet11, _get_nondet_int_#t~short12, _get_nondet_int_~from, _get_nondet_int_~until, _get_nondet_int_~len~1;_get_nondet_int_~from := _get_nondet_int_#in~from;_get_nondet_int_~until := _get_nondet_int_#in~until;_get_nondet_int_~len~1 := _get_nondet_int_~from; {1682#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start__get_nondet_int_~len~1))} is VALID [2020-07-28 18:09:36,268 INFO L280 TraceCheckUtils]: 19: Hoare triple {1682#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start__get_nondet_int_~len~1))} _get_nondet_int_#t~short12 := _get_nondet_int_~len~1 < _get_nondet_int_~until; {1682#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start__get_nondet_int_~len~1))} is VALID [2020-07-28 18:09:36,269 INFO L280 TraceCheckUtils]: 20: Hoare triple {1682#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start__get_nondet_int_~len~1))} assume _get_nondet_int_#t~short12;assume -2147483648 <= _get_nondet_int_#t~nondet11 && _get_nondet_int_#t~nondet11 <= 2147483647;_get_nondet_int_#t~short12 := 0 != _get_nondet_int_#t~nondet11; {1682#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start__get_nondet_int_~len~1))} is VALID [2020-07-28 18:09:36,270 INFO L280 TraceCheckUtils]: 21: Hoare triple {1682#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start__get_nondet_int_~len~1))} assume !_get_nondet_int_#t~short12;havoc _get_nondet_int_#t~nondet11;havoc _get_nondet_int_#t~short12; {1682#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start__get_nondet_int_~len~1))} is VALID [2020-07-28 18:09:36,271 INFO L280 TraceCheckUtils]: 22: Hoare triple {1682#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start__get_nondet_int_~len~1))} _get_nondet_int_#res := _get_nondet_int_~len~1; {1683#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 |ULTIMATE.start__get_nondet_int_#res|))} is VALID [2020-07-28 18:09:36,271 INFO L280 TraceCheckUtils]: 23: Hoare triple {1683#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 |ULTIMATE.start__get_nondet_int_#res|))} main_#t~ret16 := _get_nondet_int_#res;assume -2147483648 <= main_#t~ret16 && main_#t~ret16 <= 2147483647;main_~k~0 := main_#t~ret16;havoc main_#t~ret16;main_~i~0 := 0; {1684#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start_main_~k~0))} is VALID [2020-07-28 18:09:36,272 INFO L280 TraceCheckUtils]: 24: Hoare triple {1684#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start_main_~k~0))} main_#t~short18 := main_~i~0 < main_~k~0; {1684#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start_main_~k~0))} is VALID [2020-07-28 18:09:36,272 INFO L280 TraceCheckUtils]: 25: Hoare triple {1684#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start_main_~k~0))} assume !main_#t~short18; {1684#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start_main_~k~0))} is VALID [2020-07-28 18:09:36,273 INFO L280 TraceCheckUtils]: 26: Hoare triple {1684#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start_main_~k~0))} assume !main_#t~short18;havoc main_#t~nondet17;havoc main_#t~short18; {1684#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start_main_~k~0))} is VALID [2020-07-28 18:09:36,273 INFO L280 TraceCheckUtils]: 27: Hoare triple {1684#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start_main_~k~0))} call main_#t~mem21.base, main_#t~mem21.offset := read~$Pointer$(main_~#s~0.base, main_~#s~0.offset, 4);sll_length_#in~head.base, sll_length_#in~head.offset := main_#t~mem21.base, main_#t~mem21.offset;havoc sll_length_#res;havoc sll_length_#t~post4, sll_length_#t~mem5.base, sll_length_#t~mem5.offset, sll_length_~head.base, sll_length_~head.offset, sll_length_~len~0;sll_length_~head.base, sll_length_~head.offset := sll_length_#in~head.base, sll_length_#in~head.offset;sll_length_~len~0 := 0; {1685#(and (<= 2 ULTIMATE.start_main_~len~2) (= 0 ULTIMATE.start_sll_length_~len~0) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start_main_~k~0))} is VALID [2020-07-28 18:09:36,274 INFO L280 TraceCheckUtils]: 28: Hoare triple {1685#(and (<= 2 ULTIMATE.start_main_~len~2) (= 0 ULTIMATE.start_sll_length_~len~0) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start_main_~k~0))} assume !!(sll_length_~head.base != 0 || sll_length_~head.offset != 0);sll_length_#t~post4 := sll_length_~len~0;sll_length_~len~0 := 1 + sll_length_#t~post4;havoc sll_length_#t~post4;call sll_length_#t~mem5.base, sll_length_#t~mem5.offset := read~$Pointer$(sll_length_~head.base, sll_length_~head.offset, 4);sll_length_~head.base, sll_length_~head.offset := sll_length_#t~mem5.base, sll_length_#t~mem5.offset;havoc sll_length_#t~mem5.base, sll_length_#t~mem5.offset; {1777#(and (<= 2 ULTIMATE.start_main_~len~2) (= 1 ULTIMATE.start_sll_length_~len~0) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start_main_~k~0))} is VALID [2020-07-28 18:09:36,275 INFO L280 TraceCheckUtils]: 29: Hoare triple {1777#(and (<= 2 ULTIMATE.start_main_~len~2) (= 1 ULTIMATE.start_sll_length_~len~0) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start_main_~k~0))} assume !!(sll_length_~head.base != 0 || sll_length_~head.offset != 0);sll_length_#t~post4 := sll_length_~len~0;sll_length_~len~0 := 1 + sll_length_#t~post4;havoc sll_length_#t~post4;call sll_length_#t~mem5.base, sll_length_#t~mem5.offset := read~$Pointer$(sll_length_~head.base, sll_length_~head.offset, 4);sll_length_~head.base, sll_length_~head.offset := sll_length_#t~mem5.base, sll_length_#t~mem5.offset;havoc sll_length_#t~mem5.base, sll_length_#t~mem5.offset; {1781#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 2 ULTIMATE.start_sll_length_~len~0) (= 0 ULTIMATE.start_main_~k~0))} is VALID [2020-07-28 18:09:36,275 INFO L280 TraceCheckUtils]: 30: Hoare triple {1781#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 2 ULTIMATE.start_sll_length_~len~0) (= 0 ULTIMATE.start_main_~k~0))} assume !(sll_length_~head.base != 0 || sll_length_~head.offset != 0); {1781#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 2 ULTIMATE.start_sll_length_~len~0) (= 0 ULTIMATE.start_main_~k~0))} is VALID [2020-07-28 18:09:36,276 INFO L280 TraceCheckUtils]: 31: Hoare triple {1781#(and (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 2 ULTIMATE.start_sll_length_~len~0) (= 0 ULTIMATE.start_main_~k~0))} sll_length_#res := sll_length_~len~0; {1788#(and (= 2 |ULTIMATE.start_sll_length_#res|) (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start_main_~k~0))} is VALID [2020-07-28 18:09:36,276 INFO L280 TraceCheckUtils]: 32: Hoare triple {1788#(and (= 2 |ULTIMATE.start_sll_length_#res|) (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start_main_~k~0))} main_#t~ret22 := sll_length_#res;assume -2147483648 <= main_#t~ret22 && main_#t~ret22 <= 2147483647; {1792#(and (= 2 |ULTIMATE.start_main_#t~ret22|) (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start_main_~k~0))} is VALID [2020-07-28 18:09:36,277 INFO L280 TraceCheckUtils]: 33: Hoare triple {1792#(and (= 2 |ULTIMATE.start_main_#t~ret22|) (<= 2 ULTIMATE.start_main_~len~2) (<= ULTIMATE.start_main_~len~2 2) (= 0 ULTIMATE.start_main_~k~0))} assume main_~k~0 + main_~len~2 != main_#t~ret22;havoc main_#t~mem21.base, main_#t~mem21.offset;havoc main_#t~ret22; {1678#false} is VALID [2020-07-28 18:09:36,277 INFO L280 TraceCheckUtils]: 34: Hoare triple {1678#false} assume !false; {1678#false} is VALID [2020-07-28 18:09:36,280 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-28 18:09:36,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-28 18:09:36,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 17 [2020-07-28 18:09:36,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959629117] [2020-07-28 18:09:36,281 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 35 [2020-07-28 18:09:36,281 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:09:36,281 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states. [2020-07-28 18:09:36,330 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:09:36,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-28 18:09:36,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:09:36,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-28 18:09:36,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2020-07-28 18:09:36,332 INFO L87 Difference]: Start difference. First operand 52 states and 65 transitions. Second operand 17 states. [2020-07-28 18:09:38,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:09:38,681 INFO L93 Difference]: Finished difference Result 213 states and 262 transitions. [2020-07-28 18:09:38,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-28 18:09:38,681 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 35 [2020-07-28 18:09:38,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:09:38,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-07-28 18:09:38,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 226 transitions. [2020-07-28 18:09:38,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-07-28 18:09:38,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 226 transitions. [2020-07-28 18:09:38,689 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 21 states and 226 transitions. [2020-07-28 18:09:38,984 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 226 edges. 226 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:09:38,990 INFO L225 Difference]: With dead ends: 213 [2020-07-28 18:09:38,990 INFO L226 Difference]: Without dead ends: 205 [2020-07-28 18:09:38,991 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=161, Invalid=651, Unknown=0, NotChecked=0, Total=812 [2020-07-28 18:09:38,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-07-28 18:09:39,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 97. [2020-07-28 18:09:39,177 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:09:39,178 INFO L82 GeneralOperation]: Start isEquivalent. First operand 205 states. Second operand 97 states. [2020-07-28 18:09:39,178 INFO L74 IsIncluded]: Start isIncluded. First operand 205 states. Second operand 97 states. [2020-07-28 18:09:39,178 INFO L87 Difference]: Start difference. First operand 205 states. Second operand 97 states. [2020-07-28 18:09:39,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:09:39,185 INFO L93 Difference]: Finished difference Result 205 states and 253 transitions. [2020-07-28 18:09:39,185 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 253 transitions. [2020-07-28 18:09:39,186 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:09:39,186 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:09:39,186 INFO L74 IsIncluded]: Start isIncluded. First operand 97 states. Second operand 205 states. [2020-07-28 18:09:39,186 INFO L87 Difference]: Start difference. First operand 97 states. Second operand 205 states. [2020-07-28 18:09:39,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:09:39,193 INFO L93 Difference]: Finished difference Result 205 states and 253 transitions. [2020-07-28 18:09:39,193 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 253 transitions. [2020-07-28 18:09:39,194 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:09:39,194 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:09:39,194 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:09:39,194 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:09:39,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-07-28 18:09:39,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 125 transitions. [2020-07-28 18:09:39,198 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 125 transitions. Word has length 35 [2020-07-28 18:09:39,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:09:39,198 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 125 transitions. [2020-07-28 18:09:39,198 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-28 18:09:39,198 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 125 transitions. [2020-07-28 18:09:39,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-07-28 18:09:39,199 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:09:39,199 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:09:39,412 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-28 18:09:39,413 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:09:39,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:09:39,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1805693939, now seen corresponding path program 3 times [2020-07-28 18:09:39,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:09:39,415 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765266167] [2020-07-28 18:09:39,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:09:39,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:09:39,715 INFO L280 TraceCheckUtils]: 0: Hoare triple {2655#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {2655#true} is VALID [2020-07-28 18:09:39,716 INFO L280 TraceCheckUtils]: 1: Hoare triple {2655#true} havoc main_#res;havoc main_#t~ret14, main_#t~ret15.base, main_#t~ret15.offset, main_#t~ret16, main_#t~ret19, main_#t~post20, main_~position~0, main_#t~nondet17, main_#t~short18, main_#t~mem21.base, main_#t~mem21.offset, main_#t~ret22, main_#t~mem23.base, main_#t~mem23.offset, main_~len~2, main_~#s~0.base, main_~#s~0.offset, main_~k~0, main_~i~0;_get_nondet_int_#in~from, _get_nondet_int_#in~until := 2, 5;havoc _get_nondet_int_#res;havoc _get_nondet_int_#t~post13, _get_nondet_int_#t~nondet11, _get_nondet_int_#t~short12, _get_nondet_int_~from, _get_nondet_int_~until, _get_nondet_int_~len~1;_get_nondet_int_~from := _get_nondet_int_#in~from;_get_nondet_int_~until := _get_nondet_int_#in~until;_get_nondet_int_~len~1 := _get_nondet_int_~from; {2655#true} is VALID [2020-07-28 18:09:39,716 INFO L280 TraceCheckUtils]: 2: Hoare triple {2655#true} _get_nondet_int_#t~short12 := _get_nondet_int_~len~1 < _get_nondet_int_~until; {2655#true} is VALID [2020-07-28 18:09:39,716 INFO L280 TraceCheckUtils]: 3: Hoare triple {2655#true} assume _get_nondet_int_#t~short12;assume -2147483648 <= _get_nondet_int_#t~nondet11 && _get_nondet_int_#t~nondet11 <= 2147483647;_get_nondet_int_#t~short12 := 0 != _get_nondet_int_#t~nondet11; {2655#true} is VALID [2020-07-28 18:09:39,717 INFO L280 TraceCheckUtils]: 4: Hoare triple {2655#true} assume !_get_nondet_int_#t~short12;havoc _get_nondet_int_#t~nondet11;havoc _get_nondet_int_#t~short12; {2655#true} is VALID [2020-07-28 18:09:39,717 INFO L280 TraceCheckUtils]: 5: Hoare triple {2655#true} _get_nondet_int_#res := _get_nondet_int_~len~1; {2655#true} is VALID [2020-07-28 18:09:39,718 INFO L280 TraceCheckUtils]: 6: Hoare triple {2655#true} main_#t~ret14 := _get_nondet_int_#res;assume -2147483648 <= main_#t~ret14 && main_#t~ret14 <= 2147483647;main_~len~2 := main_#t~ret14;havoc main_#t~ret14;call main_~#s~0.base, main_~#s~0.offset := #Ultimate.allocOnStack(4);sll_create_#in~len := main_~len~2;havoc sll_create_#res.base, sll_create_#res.offset;havoc sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, sll_create_#t~post2, sll_create_~len, sll_create_~head~0.base, sll_create_~head~0.offset;sll_create_~len := sll_create_#in~len;sll_create_~head~0.base, sll_create_~head~0.offset := 0, 0; {2657#(and (= 0 ULTIMATE.start_sll_create_~head~0.base) (= 0 ULTIMATE.start_sll_create_~head~0.offset))} is VALID [2020-07-28 18:09:39,719 INFO L280 TraceCheckUtils]: 7: Hoare triple {2657#(and (= 0 ULTIMATE.start_sll_create_~head~0.base) (= 0 ULTIMATE.start_sll_create_~head~0.offset))} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {2657#(and (= 0 ULTIMATE.start_sll_create_~head~0.base) (= 0 ULTIMATE.start_sll_create_~head~0.offset))} is VALID [2020-07-28 18:09:39,720 INFO L280 TraceCheckUtils]: 8: Hoare triple {2657#(and (= 0 ULTIMATE.start_sll_create_~head~0.base) (= 0 ULTIMATE.start_sll_create_~head~0.offset))} assume !!(sll_create_#t~post2 > 0);havoc sll_create_#t~post2;call sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset := #Ultimate.allocOnHeap(4);sll_create_~new_head~0.base, sll_create_~new_head~0.offset := sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset; {2658#(and (= 1 (select |#valid| ULTIMATE.start_sll_create_~new_head~0.base)) (= 0 ULTIMATE.start_sll_create_~head~0.base) (= 0 ULTIMATE.start_sll_create_~head~0.offset))} is VALID [2020-07-28 18:09:39,720 INFO L280 TraceCheckUtils]: 9: Hoare triple {2658#(and (= 1 (select |#valid| ULTIMATE.start_sll_create_~new_head~0.base)) (= 0 ULTIMATE.start_sll_create_~head~0.base) (= 0 ULTIMATE.start_sll_create_~head~0.offset))} assume !(0 == sll_create_~new_head~0.base && 0 == sll_create_~new_head~0.offset); {2658#(and (= 1 (select |#valid| ULTIMATE.start_sll_create_~new_head~0.base)) (= 0 ULTIMATE.start_sll_create_~head~0.base) (= 0 ULTIMATE.start_sll_create_~head~0.offset))} is VALID [2020-07-28 18:09:39,722 INFO L280 TraceCheckUtils]: 10: Hoare triple {2658#(and (= 1 (select |#valid| ULTIMATE.start_sll_create_~new_head~0.base)) (= 0 ULTIMATE.start_sll_create_~head~0.base) (= 0 ULTIMATE.start_sll_create_~head~0.offset))} call write~$Pointer$(sll_create_~head~0.base, sll_create_~head~0.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, 4);sll_create_~head~0.base, sll_create_~head~0.offset := sll_create_~new_head~0.base, sll_create_~new_head~0.offset; {2659#(and (= 1 (select |#valid| ULTIMATE.start_sll_create_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset)))} is VALID [2020-07-28 18:09:39,723 INFO L280 TraceCheckUtils]: 11: Hoare triple {2659#(and (= 1 (select |#valid| ULTIMATE.start_sll_create_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset)))} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {2659#(and (= 1 (select |#valid| ULTIMATE.start_sll_create_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset)))} is VALID [2020-07-28 18:09:39,723 INFO L280 TraceCheckUtils]: 12: Hoare triple {2659#(and (= 1 (select |#valid| ULTIMATE.start_sll_create_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset)))} assume !!(sll_create_#t~post2 > 0);havoc sll_create_#t~post2;call sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset := #Ultimate.allocOnHeap(4);sll_create_~new_head~0.base, sll_create_~new_head~0.offset := sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset; {2660#(and (not (= ULTIMATE.start_sll_create_~head~0.base ULTIMATE.start_sll_create_~new_head~0.base)) (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset)))} is VALID [2020-07-28 18:09:39,724 INFO L280 TraceCheckUtils]: 13: Hoare triple {2660#(and (not (= ULTIMATE.start_sll_create_~head~0.base ULTIMATE.start_sll_create_~new_head~0.base)) (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset)))} assume !(0 == sll_create_~new_head~0.base && 0 == sll_create_~new_head~0.offset); {2660#(and (not (= ULTIMATE.start_sll_create_~head~0.base ULTIMATE.start_sll_create_~new_head~0.base)) (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset)))} is VALID [2020-07-28 18:09:39,725 INFO L280 TraceCheckUtils]: 14: Hoare triple {2660#(and (not (= ULTIMATE.start_sll_create_~head~0.base ULTIMATE.start_sll_create_~new_head~0.base)) (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset)) (= 0 (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset)))} call write~$Pointer$(sll_create_~head~0.base, sll_create_~head~0.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, 4);sll_create_~head~0.base, sll_create_~head~0.offset := sll_create_~new_head~0.base, sll_create_~new_head~0.offset; {2661#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset)) (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset)) (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset))))} is VALID [2020-07-28 18:09:39,726 INFO L280 TraceCheckUtils]: 15: Hoare triple {2661#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset)) (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset)) (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset))))} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {2661#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset)) (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset)) (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset))))} is VALID [2020-07-28 18:09:39,726 INFO L280 TraceCheckUtils]: 16: Hoare triple {2661#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset)) (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset)) (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset))))} assume !(sll_create_#t~post2 > 0);havoc sll_create_#t~post2; {2661#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset)) (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset)) (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset))))} is VALID [2020-07-28 18:09:39,727 INFO L280 TraceCheckUtils]: 17: Hoare triple {2661#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset)) (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset))) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset)) (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_create_~head~0.base) ULTIMATE.start_sll_create_~head~0.offset))))} sll_create_#res.base, sll_create_#res.offset := sll_create_~head~0.base, sll_create_~head~0.offset; {2662#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_create_#res.base|) |ULTIMATE.start_sll_create_#res.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_create_#res.base|) |ULTIMATE.start_sll_create_#res.offset|))) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_create_#res.base|) |ULTIMATE.start_sll_create_#res.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_create_#res.base|) |ULTIMATE.start_sll_create_#res.offset|))))} is VALID [2020-07-28 18:09:39,728 INFO L280 TraceCheckUtils]: 18: Hoare triple {2662#(and (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_create_#res.base|) |ULTIMATE.start_sll_create_#res.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_create_#res.base|) |ULTIMATE.start_sll_create_#res.offset|))) (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_create_#res.base|) |ULTIMATE.start_sll_create_#res.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_create_#res.base|) |ULTIMATE.start_sll_create_#res.offset|))))} main_#t~ret15.base, main_#t~ret15.offset := sll_create_#res.base, sll_create_#res.offset;call write~init~$Pointer$(main_#t~ret15.base, main_#t~ret15.offset, main_~#s~0.base, main_~#s~0.offset, 4);havoc main_#t~ret15.base, main_#t~ret15.offset;_get_nondet_int_#in~from, _get_nondet_int_#in~until := 0, main_~len~2 - 1;havoc _get_nondet_int_#res;havoc _get_nondet_int_#t~post13, _get_nondet_int_#t~nondet11, _get_nondet_int_#t~short12, _get_nondet_int_~from, _get_nondet_int_~until, _get_nondet_int_~len~1;_get_nondet_int_~from := _get_nondet_int_#in~from;_get_nondet_int_~until := _get_nondet_int_#in~until;_get_nondet_int_~len~1 := _get_nondet_int_~from; {2663#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))))} is VALID [2020-07-28 18:09:39,728 INFO L280 TraceCheckUtils]: 19: Hoare triple {2663#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))))} _get_nondet_int_#t~short12 := _get_nondet_int_~len~1 < _get_nondet_int_~until; {2663#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))))} is VALID [2020-07-28 18:09:39,729 INFO L280 TraceCheckUtils]: 20: Hoare triple {2663#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))))} assume _get_nondet_int_#t~short12;assume -2147483648 <= _get_nondet_int_#t~nondet11 && _get_nondet_int_#t~nondet11 <= 2147483647;_get_nondet_int_#t~short12 := 0 != _get_nondet_int_#t~nondet11; {2663#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))))} is VALID [2020-07-28 18:09:39,731 INFO L280 TraceCheckUtils]: 21: Hoare triple {2663#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))))} assume !_get_nondet_int_#t~short12;havoc _get_nondet_int_#t~nondet11;havoc _get_nondet_int_#t~short12; {2663#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))))} is VALID [2020-07-28 18:09:39,731 INFO L280 TraceCheckUtils]: 22: Hoare triple {2663#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))))} _get_nondet_int_#res := _get_nondet_int_~len~1; {2663#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))))} is VALID [2020-07-28 18:09:39,732 INFO L280 TraceCheckUtils]: 23: Hoare triple {2663#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))))} main_#t~ret16 := _get_nondet_int_#res;assume -2147483648 <= main_#t~ret16 && main_#t~ret16 <= 2147483647;main_~k~0 := main_#t~ret16;havoc main_#t~ret16;main_~i~0 := 0; {2663#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))))} is VALID [2020-07-28 18:09:39,733 INFO L280 TraceCheckUtils]: 24: Hoare triple {2663#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))))} main_#t~short18 := main_~i~0 < main_~k~0; {2663#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))))} is VALID [2020-07-28 18:09:39,734 INFO L280 TraceCheckUtils]: 25: Hoare triple {2663#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))))} assume !main_#t~short18; {2663#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))))} is VALID [2020-07-28 18:09:39,735 INFO L280 TraceCheckUtils]: 26: Hoare triple {2663#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))))} assume !main_#t~short18;havoc main_#t~nondet17;havoc main_#t~short18; {2663#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))))} is VALID [2020-07-28 18:09:39,736 INFO L280 TraceCheckUtils]: 27: Hoare triple {2663#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)))))} call main_#t~mem21.base, main_#t~mem21.offset := read~$Pointer$(main_~#s~0.base, main_~#s~0.offset, 4);sll_length_#in~head.base, sll_length_#in~head.offset := main_#t~mem21.base, main_#t~mem21.offset;havoc sll_length_#res;havoc sll_length_#t~post4, sll_length_#t~mem5.base, sll_length_#t~mem5.offset, sll_length_~head.base, sll_length_~head.offset, sll_length_~len~0;sll_length_~head.base, sll_length_~head.offset := sll_length_#in~head.base, sll_length_#in~head.offset;sll_length_~len~0 := 0; {2664#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_length_~head.base) ULTIMATE.start_sll_length_~head.offset)) (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_length_~head.base) ULTIMATE.start_sll_length_~head.offset))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_length_~head.base) ULTIMATE.start_sll_length_~head.offset)) (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_length_~head.base) ULTIMATE.start_sll_length_~head.offset))))} is VALID [2020-07-28 18:09:39,737 INFO L280 TraceCheckUtils]: 28: Hoare triple {2664#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_length_~head.base) ULTIMATE.start_sll_length_~head.offset)) (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_length_~head.base) ULTIMATE.start_sll_length_~head.offset))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_length_~head.base) ULTIMATE.start_sll_length_~head.offset)) (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_length_~head.base) ULTIMATE.start_sll_length_~head.offset))))} assume !!(sll_length_~head.base != 0 || sll_length_~head.offset != 0);sll_length_#t~post4 := sll_length_~len~0;sll_length_~len~0 := 1 + sll_length_#t~post4;havoc sll_length_#t~post4;call sll_length_#t~mem5.base, sll_length_#t~mem5.offset := read~$Pointer$(sll_length_~head.base, sll_length_~head.offset, 4);sll_length_~head.base, sll_length_~head.offset := sll_length_#t~mem5.base, sll_length_#t~mem5.offset;havoc sll_length_#t~mem5.base, sll_length_#t~mem5.offset; {2665#(and (= 0 (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_length_~head.base) ULTIMATE.start_sll_length_~head.offset)) (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_length_~head.base) ULTIMATE.start_sll_length_~head.offset)))} is VALID [2020-07-28 18:09:39,738 INFO L280 TraceCheckUtils]: 29: Hoare triple {2665#(and (= 0 (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_length_~head.base) ULTIMATE.start_sll_length_~head.offset)) (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_length_~head.base) ULTIMATE.start_sll_length_~head.offset)))} assume !!(sll_length_~head.base != 0 || sll_length_~head.offset != 0);sll_length_#t~post4 := sll_length_~len~0;sll_length_~len~0 := 1 + sll_length_#t~post4;havoc sll_length_#t~post4;call sll_length_#t~mem5.base, sll_length_#t~mem5.offset := read~$Pointer$(sll_length_~head.base, sll_length_~head.offset, 4);sll_length_~head.base, sll_length_~head.offset := sll_length_#t~mem5.base, sll_length_#t~mem5.offset;havoc sll_length_#t~mem5.base, sll_length_#t~mem5.offset; {2666#(and (= 0 ULTIMATE.start_sll_length_~head.offset) (= 0 ULTIMATE.start_sll_length_~head.base))} is VALID [2020-07-28 18:09:39,739 INFO L280 TraceCheckUtils]: 30: Hoare triple {2666#(and (= 0 ULTIMATE.start_sll_length_~head.offset) (= 0 ULTIMATE.start_sll_length_~head.base))} assume !!(sll_length_~head.base != 0 || sll_length_~head.offset != 0);sll_length_#t~post4 := sll_length_~len~0;sll_length_~len~0 := 1 + sll_length_#t~post4;havoc sll_length_#t~post4;call sll_length_#t~mem5.base, sll_length_#t~mem5.offset := read~$Pointer$(sll_length_~head.base, sll_length_~head.offset, 4);sll_length_~head.base, sll_length_~head.offset := sll_length_#t~mem5.base, sll_length_#t~mem5.offset;havoc sll_length_#t~mem5.base, sll_length_#t~mem5.offset; {2656#false} is VALID [2020-07-28 18:09:39,739 INFO L280 TraceCheckUtils]: 31: Hoare triple {2656#false} assume !(sll_length_~head.base != 0 || sll_length_~head.offset != 0); {2656#false} is VALID [2020-07-28 18:09:39,739 INFO L280 TraceCheckUtils]: 32: Hoare triple {2656#false} sll_length_#res := sll_length_~len~0; {2656#false} is VALID [2020-07-28 18:09:39,739 INFO L280 TraceCheckUtils]: 33: Hoare triple {2656#false} main_#t~ret22 := sll_length_#res;assume -2147483648 <= main_#t~ret22 && main_#t~ret22 <= 2147483647; {2656#false} is VALID [2020-07-28 18:09:39,740 INFO L280 TraceCheckUtils]: 34: Hoare triple {2656#false} assume main_~k~0 + main_~len~2 != main_#t~ret22;havoc main_#t~mem21.base, main_#t~mem21.offset;havoc main_#t~ret22; {2656#false} is VALID [2020-07-28 18:09:39,740 INFO L280 TraceCheckUtils]: 35: Hoare triple {2656#false} assume !false; {2656#false} is VALID [2020-07-28 18:09:39,744 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:09:39,744 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765266167] [2020-07-28 18:09:39,745 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1079072412] [2020-07-28 18:09:39,745 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 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 [2020-07-28 18:09:39,815 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-07-28 18:09:39,815 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-28 18:09:39,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 60 conjunts are in the unsatisfiable core [2020-07-28 18:09:39,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:09:39,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 18:09:39,870 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 [2020-07-28 18:09:39,871 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-28 18:09:39,881 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-28 18:09:39,881 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-07-28 18:09:39,882 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2020-07-28 18:09:39,884 WARN L406 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2020-07-28 18:09:39,884 WARN L407 uantifierElimination]: Input elimination task: ∃ [|v_#valid_15|]. (and (= 0 ULTIMATE.start_sll_create_~new_head~0.offset) (= |#valid| (store |v_#valid_15| ULTIMATE.start_sll_create_~new_head~0.base 1)) (= 0 ULTIMATE.start_sll_create_~head~0.base) (= 0 ULTIMATE.start_sll_create_~head~0.offset)) [2020-07-28 18:09:39,885 WARN L408 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= 1 (select |#valid| ULTIMATE.start_sll_create_~new_head~0.base)) (= 0 ULTIMATE.start_sll_create_~new_head~0.offset) (= 0 ULTIMATE.start_sll_create_~head~0.base) (= 0 ULTIMATE.start_sll_create_~head~0.offset)) [2020-07-28 18:09:39,940 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-07-28 18:09:39,940 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-28 18:09:39,950 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-28 18:09:39,953 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2020-07-28 18:09:39,953 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-28 18:09:39,963 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-28 18:09:39,964 INFO L544 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-28 18:09:39,964 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:23 [2020-07-28 18:09:40,033 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-28 18:09:40,033 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 [2020-07-28 18:09:40,034 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-28 18:09:40,044 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-28 18:09:40,045 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-07-28 18:09:40,045 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:25 [2020-07-28 18:09:40,156 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 19 treesize of output 18 [2020-07-28 18:09:40,157 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-28 18:09:40,169 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-28 18:09:40,178 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 19 treesize of output 18 [2020-07-28 18:09:40,178 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-28 18:09:40,197 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-28 18:09:40,200 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-28 18:09:40,200 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:44, output treesize:41 [2020-07-28 18:09:40,819 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-07-28 18:09:40,821 INFO L350 Elim1Store]: treesize reduction 8, result has 92.9 percent of original size [2020-07-28 18:09:40,822 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 120 treesize of output 163 [2020-07-28 18:09:40,870 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 11 disjuncts [2020-07-28 18:09:40,882 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-07-28 18:09:40,898 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-07-28 18:09:40,914 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-07-28 18:09:40,922 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-07-28 18:09:40,931 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-07-28 18:09:40,939 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-28 18:09:40,946 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-07-28 18:09:40,973 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-28 18:09:40,983 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-07-28 18:09:41,004 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-07-28 18:09:41,025 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-07-28 18:09:41,031 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-28 18:09:41,039 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-07-28 18:09:41,063 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-28 18:09:41,069 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-07-28 18:09:41,089 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-07-28 18:09:41,118 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-07-28 18:09:41,131 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-07-28 18:09:41,144 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-28 18:09:41,156 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-07-28 18:09:41,189 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-28 18:09:41,200 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-07-28 18:09:41,221 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-07-28 18:09:41,242 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-07-28 18:09:41,254 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-28 18:09:41,271 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-07-28 18:09:41,302 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-07-28 18:09:41,325 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-07-28 18:09:41,347 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-07-28 18:09:41,375 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-07-28 18:09:41,399 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-28 18:09:41,409 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-07-28 18:09:41,430 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-07-28 18:09:41,472 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-07-28 18:09:41,484 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-07-28 18:09:41,494 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-07-28 18:09:41,504 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-07-28 18:09:41,516 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-07-28 18:09:41,550 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-07-28 18:09:41,570 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-07-28 18:09:41,578 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-07-28 18:09:41,602 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-07-28 18:09:41,629 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-07-28 18:09:41,640 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-07-28 18:09:41,668 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-07-28 18:09:41,694 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-07-28 18:09:41,706 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-28 18:09:41,716 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-07-28 18:09:41,738 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-07-28 18:09:41,758 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-07-28 18:09:41,769 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-07-28 18:09:41,795 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-07-28 18:09:41,802 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-07-28 18:09:41,809 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-28 18:09:41,820 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-07-28 18:09:41,843 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-07-28 18:09:41,867 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-07-28 18:09:41,873 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-07-28 18:09:41,899 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-07-28 18:09:41,909 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-28 18:09:41,915 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-07-28 18:09:41,937 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-28 18:09:41,942 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-07-28 18:09:41,965 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-07-28 18:09:41,989 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-28 18:09:42,002 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-07-28 18:09:42,027 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-07-28 18:09:42,074 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 11 disjuncts [2020-07-28 18:09:42,085 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2020-07-28 18:09:42,097 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-07-28 18:09:42,109 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-07-28 18:09:42,118 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-07-28 18:09:42,126 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-07-28 18:09:42,133 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-28 18:09:42,142 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-07-28 18:09:42,172 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-28 18:09:42,179 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-07-28 18:09:42,199 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-07-28 18:09:42,220 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-07-28 18:09:42,225 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-28 18:09:42,232 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-07-28 18:09:42,257 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-28 18:09:42,262 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-07-28 18:09:42,283 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-07-28 18:09:42,310 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-07-28 18:09:42,323 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-07-28 18:09:42,340 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-28 18:09:42,351 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-07-28 18:09:42,370 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-28 18:09:42,386 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-07-28 18:09:42,407 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-07-28 18:09:42,431 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-07-28 18:09:42,443 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-28 18:09:42,453 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-07-28 18:09:42,480 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-07-28 18:09:42,497 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-07-28 18:09:42,509 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-07-28 18:09:42,543 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-07-28 18:09:42,564 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-28 18:09:42,582 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-07-28 18:09:42,609 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-07-28 18:09:42,647 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-07-28 18:09:42,661 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-07-28 18:09:42,672 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 9 disjuncts [2020-07-28 18:09:42,684 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-07-28 18:09:42,696 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-07-28 18:09:42,729 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-07-28 18:09:42,748 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-07-28 18:09:42,758 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-07-28 18:09:42,783 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-07-28 18:09:42,823 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-07-28 18:09:42,846 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-07-28 18:09:42,883 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-07-28 18:09:42,920 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-07-28 18:09:42,936 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-28 18:09:42,951 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-07-28 18:09:42,976 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-07-28 18:09:43,006 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-07-28 18:09:43,021 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-07-28 18:09:43,045 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-07-28 18:09:43,055 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 8 disjuncts [2020-07-28 18:09:43,063 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-28 18:09:43,072 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-07-28 18:09:43,109 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-07-28 18:09:43,144 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-07-28 18:09:43,154 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-07-28 18:09:43,192 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2020-07-28 18:09:43,200 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-28 18:09:43,209 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-07-28 18:09:43,246 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-28 18:09:43,256 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-07-28 18:09:43,292 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-07-28 18:09:43,334 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-28 18:09:43,347 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 6 disjuncts [2020-07-28 18:09:43,389 INFO L523 QuantifierPusher]: Distributing 3 conjuncts over 5 disjuncts [2020-07-28 18:09:43,417 INFO L544 ElimStorePlain]: Start of recursive call 2: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-07-28 18:09:43,496 INFO L624 ElimStorePlain]: treesize reduction 92, result has 45.6 percent of original size [2020-07-28 18:09:43,557 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-28 18:09:43,558 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 104 [2020-07-28 18:09:43,559 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-28 18:09:43,603 INFO L624 ElimStorePlain]: treesize reduction 12, result has 72.7 percent of original size [2020-07-28 18:09:43,627 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 18:09:43,668 INFO L544 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-28 18:09:43,668 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:127, output treesize:7 [2020-07-28 18:09:43,672 WARN L406 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2020-07-28 18:09:43,673 WARN L407 uantifierElimination]: Input elimination task: ∃ [|#memory_$Pointer$.base|, |ULTIMATE.start_main_~#s~0.base|, |ULTIMATE.start_main_~#s~0.offset|, |#memory_$Pointer$.offset|]. (let ((.cse1 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|))) (let ((.cse2 (select |#memory_$Pointer$.offset| .cse1)) (.cse3 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (.cse6 (select |#memory_$Pointer$.base| .cse1))) (let ((.cse0 (select .cse6 0)) (.cse4 (select .cse6 .cse3)) (.cse5 (select .cse2 .cse3))) (and (= (select (select |#memory_$Pointer$.base| .cse0) 0) 0) (not (= .cse1 .cse0)) (= 0 (select .cse2 0)) (= 0 .cse3) (= (select (select |#memory_$Pointer$.offset| .cse4) .cse5) ULTIMATE.start_sll_length_~head.offset) (= 0 (select (select |#memory_$Pointer$.offset| .cse0) 0)) (= ULTIMATE.start_sll_length_~head.base (select (select |#memory_$Pointer$.base| .cse4) .cse5)))))) [2020-07-28 18:09:43,673 WARN L408 uantifierElimination]: ElimStorePlain result: ∃ []. (and (= 0 ULTIMATE.start_sll_length_~head.offset) (= 0 ULTIMATE.start_sll_length_~head.base)) [2020-07-28 18:09:43,677 INFO L280 TraceCheckUtils]: 0: Hoare triple {2655#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {2655#true} is VALID [2020-07-28 18:09:43,678 INFO L280 TraceCheckUtils]: 1: Hoare triple {2655#true} havoc main_#res;havoc main_#t~ret14, main_#t~ret15.base, main_#t~ret15.offset, main_#t~ret16, main_#t~ret19, main_#t~post20, main_~position~0, main_#t~nondet17, main_#t~short18, main_#t~mem21.base, main_#t~mem21.offset, main_#t~ret22, main_#t~mem23.base, main_#t~mem23.offset, main_~len~2, main_~#s~0.base, main_~#s~0.offset, main_~k~0, main_~i~0;_get_nondet_int_#in~from, _get_nondet_int_#in~until := 2, 5;havoc _get_nondet_int_#res;havoc _get_nondet_int_#t~post13, _get_nondet_int_#t~nondet11, _get_nondet_int_#t~short12, _get_nondet_int_~from, _get_nondet_int_~until, _get_nondet_int_~len~1;_get_nondet_int_~from := _get_nondet_int_#in~from;_get_nondet_int_~until := _get_nondet_int_#in~until;_get_nondet_int_~len~1 := _get_nondet_int_~from; {2655#true} is VALID [2020-07-28 18:09:43,678 INFO L280 TraceCheckUtils]: 2: Hoare triple {2655#true} _get_nondet_int_#t~short12 := _get_nondet_int_~len~1 < _get_nondet_int_~until; {2655#true} is VALID [2020-07-28 18:09:43,679 INFO L280 TraceCheckUtils]: 3: Hoare triple {2655#true} assume _get_nondet_int_#t~short12;assume -2147483648 <= _get_nondet_int_#t~nondet11 && _get_nondet_int_#t~nondet11 <= 2147483647;_get_nondet_int_#t~short12 := 0 != _get_nondet_int_#t~nondet11; {2655#true} is VALID [2020-07-28 18:09:43,679 INFO L280 TraceCheckUtils]: 4: Hoare triple {2655#true} assume !_get_nondet_int_#t~short12;havoc _get_nondet_int_#t~nondet11;havoc _get_nondet_int_#t~short12; {2655#true} is VALID [2020-07-28 18:09:43,679 INFO L280 TraceCheckUtils]: 5: Hoare triple {2655#true} _get_nondet_int_#res := _get_nondet_int_~len~1; {2655#true} is VALID [2020-07-28 18:09:43,680 INFO L280 TraceCheckUtils]: 6: Hoare triple {2655#true} main_#t~ret14 := _get_nondet_int_#res;assume -2147483648 <= main_#t~ret14 && main_#t~ret14 <= 2147483647;main_~len~2 := main_#t~ret14;havoc main_#t~ret14;call main_~#s~0.base, main_~#s~0.offset := #Ultimate.allocOnStack(4);sll_create_#in~len := main_~len~2;havoc sll_create_#res.base, sll_create_#res.offset;havoc sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, sll_create_#t~post2, sll_create_~len, sll_create_~head~0.base, sll_create_~head~0.offset;sll_create_~len := sll_create_#in~len;sll_create_~head~0.base, sll_create_~head~0.offset := 0, 0; {2657#(and (= 0 ULTIMATE.start_sll_create_~head~0.base) (= 0 ULTIMATE.start_sll_create_~head~0.offset))} is VALID [2020-07-28 18:09:43,681 INFO L280 TraceCheckUtils]: 7: Hoare triple {2657#(and (= 0 ULTIMATE.start_sll_create_~head~0.base) (= 0 ULTIMATE.start_sll_create_~head~0.offset))} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {2657#(and (= 0 ULTIMATE.start_sll_create_~head~0.base) (= 0 ULTIMATE.start_sll_create_~head~0.offset))} is VALID [2020-07-28 18:09:43,682 INFO L280 TraceCheckUtils]: 8: Hoare triple {2657#(and (= 0 ULTIMATE.start_sll_create_~head~0.base) (= 0 ULTIMATE.start_sll_create_~head~0.offset))} assume !!(sll_create_#t~post2 > 0);havoc sll_create_#t~post2;call sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset := #Ultimate.allocOnHeap(4);sll_create_~new_head~0.base, sll_create_~new_head~0.offset := sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset; {2694#(and (= 1 (select |#valid| ULTIMATE.start_sll_create_~new_head~0.base)) (= 0 ULTIMATE.start_sll_create_~new_head~0.offset) (= 0 ULTIMATE.start_sll_create_~head~0.base) (= 0 ULTIMATE.start_sll_create_~head~0.offset))} is VALID [2020-07-28 18:09:43,683 INFO L280 TraceCheckUtils]: 9: Hoare triple {2694#(and (= 1 (select |#valid| ULTIMATE.start_sll_create_~new_head~0.base)) (= 0 ULTIMATE.start_sll_create_~new_head~0.offset) (= 0 ULTIMATE.start_sll_create_~head~0.base) (= 0 ULTIMATE.start_sll_create_~head~0.offset))} assume !(0 == sll_create_~new_head~0.base && 0 == sll_create_~new_head~0.offset); {2694#(and (= 1 (select |#valid| ULTIMATE.start_sll_create_~new_head~0.base)) (= 0 ULTIMATE.start_sll_create_~new_head~0.offset) (= 0 ULTIMATE.start_sll_create_~head~0.base) (= 0 ULTIMATE.start_sll_create_~head~0.offset))} is VALID [2020-07-28 18:09:43,684 INFO L280 TraceCheckUtils]: 10: Hoare triple {2694#(and (= 1 (select |#valid| ULTIMATE.start_sll_create_~new_head~0.base)) (= 0 ULTIMATE.start_sll_create_~new_head~0.offset) (= 0 ULTIMATE.start_sll_create_~head~0.base) (= 0 ULTIMATE.start_sll_create_~head~0.offset))} call write~$Pointer$(sll_create_~head~0.base, sll_create_~head~0.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, 4);sll_create_~head~0.base, sll_create_~head~0.offset := sll_create_~new_head~0.base, sll_create_~new_head~0.offset; {2701#(and (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) 0)) (= 0 (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_create_~head~0.base) 0)) (= 1 (select |#valid| ULTIMATE.start_sll_create_~head~0.base)) (= 0 ULTIMATE.start_sll_create_~head~0.offset))} is VALID [2020-07-28 18:09:43,685 INFO L280 TraceCheckUtils]: 11: Hoare triple {2701#(and (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) 0)) (= 0 (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_create_~head~0.base) 0)) (= 1 (select |#valid| ULTIMATE.start_sll_create_~head~0.base)) (= 0 ULTIMATE.start_sll_create_~head~0.offset))} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {2701#(and (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) 0)) (= 0 (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_create_~head~0.base) 0)) (= 1 (select |#valid| ULTIMATE.start_sll_create_~head~0.base)) (= 0 ULTIMATE.start_sll_create_~head~0.offset))} is VALID [2020-07-28 18:09:43,686 INFO L280 TraceCheckUtils]: 12: Hoare triple {2701#(and (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) 0)) (= 0 (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_create_~head~0.base) 0)) (= 1 (select |#valid| ULTIMATE.start_sll_create_~head~0.base)) (= 0 ULTIMATE.start_sll_create_~head~0.offset))} assume !!(sll_create_#t~post2 > 0);havoc sll_create_#t~post2;call sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset := #Ultimate.allocOnHeap(4);sll_create_~new_head~0.base, sll_create_~new_head~0.offset := sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset; {2708#(and (= 0 ULTIMATE.start_sll_create_~new_head~0.offset) (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) 0)) (not (= ULTIMATE.start_sll_create_~head~0.base ULTIMATE.start_sll_create_~new_head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_create_~head~0.base) 0)) (= 0 ULTIMATE.start_sll_create_~head~0.offset))} is VALID [2020-07-28 18:09:43,687 INFO L280 TraceCheckUtils]: 13: Hoare triple {2708#(and (= 0 ULTIMATE.start_sll_create_~new_head~0.offset) (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) 0)) (not (= ULTIMATE.start_sll_create_~head~0.base ULTIMATE.start_sll_create_~new_head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_create_~head~0.base) 0)) (= 0 ULTIMATE.start_sll_create_~head~0.offset))} assume !(0 == sll_create_~new_head~0.base && 0 == sll_create_~new_head~0.offset); {2708#(and (= 0 ULTIMATE.start_sll_create_~new_head~0.offset) (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) 0)) (not (= ULTIMATE.start_sll_create_~head~0.base ULTIMATE.start_sll_create_~new_head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_create_~head~0.base) 0)) (= 0 ULTIMATE.start_sll_create_~head~0.offset))} is VALID [2020-07-28 18:09:43,688 INFO L280 TraceCheckUtils]: 14: Hoare triple {2708#(and (= 0 ULTIMATE.start_sll_create_~new_head~0.offset) (= 0 (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) 0)) (not (= ULTIMATE.start_sll_create_~head~0.base ULTIMATE.start_sll_create_~new_head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_create_~head~0.base) 0)) (= 0 ULTIMATE.start_sll_create_~head~0.offset))} call write~$Pointer$(sll_create_~head~0.base, sll_create_~head~0.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, 4);sll_create_~head~0.base, sll_create_~head~0.offset := sll_create_~new_head~0.base, sll_create_~new_head~0.offset; {2715#(and (not (= (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) 0) ULTIMATE.start_sll_create_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) 0)) 0)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) 0)) 0) 0) (= 0 (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_create_~head~0.base) 0)) (= 0 ULTIMATE.start_sll_create_~head~0.offset))} is VALID [2020-07-28 18:09:43,690 INFO L280 TraceCheckUtils]: 15: Hoare triple {2715#(and (not (= (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) 0) ULTIMATE.start_sll_create_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) 0)) 0)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) 0)) 0) 0) (= 0 (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_create_~head~0.base) 0)) (= 0 ULTIMATE.start_sll_create_~head~0.offset))} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {2715#(and (not (= (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) 0) ULTIMATE.start_sll_create_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) 0)) 0)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) 0)) 0) 0) (= 0 (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_create_~head~0.base) 0)) (= 0 ULTIMATE.start_sll_create_~head~0.offset))} is VALID [2020-07-28 18:09:43,713 INFO L280 TraceCheckUtils]: 16: Hoare triple {2715#(and (not (= (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) 0) ULTIMATE.start_sll_create_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) 0)) 0)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) 0)) 0) 0) (= 0 (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_create_~head~0.base) 0)) (= 0 ULTIMATE.start_sll_create_~head~0.offset))} assume !(sll_create_#t~post2 > 0);havoc sll_create_#t~post2; {2715#(and (not (= (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) 0) ULTIMATE.start_sll_create_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) 0)) 0)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) 0)) 0) 0) (= 0 (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_create_~head~0.base) 0)) (= 0 ULTIMATE.start_sll_create_~head~0.offset))} is VALID [2020-07-28 18:09:43,715 INFO L280 TraceCheckUtils]: 17: Hoare triple {2715#(and (not (= (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) 0) ULTIMATE.start_sll_create_~head~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) 0)) 0)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| ULTIMATE.start_sll_create_~head~0.base) 0)) 0) 0) (= 0 (select (select |#memory_$Pointer$.offset| ULTIMATE.start_sll_create_~head~0.base) 0)) (= 0 ULTIMATE.start_sll_create_~head~0.offset))} sll_create_#res.base, sll_create_#res.offset := sll_create_~head~0.base, sll_create_~head~0.offset; {2725#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_create_#res.base|) 0)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_create_#res.base|) 0)) (= 0 |ULTIMATE.start_sll_create_#res.offset|) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_create_#res.base|) 0)) 0)) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_create_#res.base|) 0) |ULTIMATE.start_sll_create_#res.base|)))} is VALID [2020-07-28 18:09:43,716 INFO L280 TraceCheckUtils]: 18: Hoare triple {2725#(and (= 0 (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_create_#res.base|) 0)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_create_#res.base|) 0)) (= 0 |ULTIMATE.start_sll_create_#res.offset|) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_create_#res.base|) 0)) 0)) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_create_#res.base|) 0) |ULTIMATE.start_sll_create_#res.base|)))} main_#t~ret15.base, main_#t~ret15.offset := sll_create_#res.base, sll_create_#res.offset;call write~init~$Pointer$(main_#t~ret15.base, main_#t~ret15.offset, main_~#s~0.base, main_~#s~0.offset, 4);havoc main_#t~ret15.base, main_#t~ret15.offset;_get_nondet_int_#in~from, _get_nondet_int_#in~until := 0, main_~len~2 - 1;havoc _get_nondet_int_#res;havoc _get_nondet_int_#t~post13, _get_nondet_int_#t~nondet11, _get_nondet_int_#t~short12, _get_nondet_int_~from, _get_nondet_int_~until, _get_nondet_int_~len~1;_get_nondet_int_~from := _get_nondet_int_#in~from;_get_nondet_int_~until := _get_nondet_int_#in~until;_get_nondet_int_~len~1 := _get_nondet_int_~from; {2729#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0) 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0)))} is VALID [2020-07-28 18:09:43,717 INFO L280 TraceCheckUtils]: 19: Hoare triple {2729#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0) 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0)))} _get_nondet_int_#t~short12 := _get_nondet_int_~len~1 < _get_nondet_int_~until; {2729#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0) 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0)))} is VALID [2020-07-28 18:09:43,717 INFO L280 TraceCheckUtils]: 20: Hoare triple {2729#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0) 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0)))} assume _get_nondet_int_#t~short12;assume -2147483648 <= _get_nondet_int_#t~nondet11 && _get_nondet_int_#t~nondet11 <= 2147483647;_get_nondet_int_#t~short12 := 0 != _get_nondet_int_#t~nondet11; {2729#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0) 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0)))} is VALID [2020-07-28 18:09:43,719 INFO L280 TraceCheckUtils]: 21: Hoare triple {2729#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0) 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0)))} assume !_get_nondet_int_#t~short12;havoc _get_nondet_int_#t~nondet11;havoc _get_nondet_int_#t~short12; {2729#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0) 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0)))} is VALID [2020-07-28 18:09:43,720 INFO L280 TraceCheckUtils]: 22: Hoare triple {2729#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0) 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0)))} _get_nondet_int_#res := _get_nondet_int_~len~1; {2729#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0) 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0)))} is VALID [2020-07-28 18:09:43,721 INFO L280 TraceCheckUtils]: 23: Hoare triple {2729#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0) 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0)))} main_#t~ret16 := _get_nondet_int_#res;assume -2147483648 <= main_#t~ret16 && main_#t~ret16 <= 2147483647;main_~k~0 := main_#t~ret16;havoc main_#t~ret16;main_~i~0 := 0; {2729#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0) 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0)))} is VALID [2020-07-28 18:09:43,721 INFO L280 TraceCheckUtils]: 24: Hoare triple {2729#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0) 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0)))} main_#t~short18 := main_~i~0 < main_~k~0; {2729#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0) 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0)))} is VALID [2020-07-28 18:09:43,722 INFO L280 TraceCheckUtils]: 25: Hoare triple {2729#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0) 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0)))} assume !main_#t~short18; {2729#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0) 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0)))} is VALID [2020-07-28 18:09:43,724 INFO L280 TraceCheckUtils]: 26: Hoare triple {2729#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0) 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0)))} assume !main_#t~short18;havoc main_#t~nondet17;havoc main_#t~short18; {2729#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0) 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0)))} is VALID [2020-07-28 18:09:43,725 INFO L280 TraceCheckUtils]: 27: Hoare triple {2729#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0) 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0)))} call main_#t~mem21.base, main_#t~mem21.offset := read~$Pointer$(main_~#s~0.base, main_~#s~0.offset, 4);sll_length_#in~head.base, sll_length_#in~head.offset := main_#t~mem21.base, main_#t~mem21.offset;havoc sll_length_#res;havoc sll_length_#t~post4, sll_length_#t~mem5.base, sll_length_#t~mem5.offset, sll_length_~head.base, sll_length_~head.offset, sll_length_~len~0;sll_length_~head.base, sll_length_~head.offset := sll_length_#in~head.base, sll_length_#in~head.offset;sll_length_~len~0 := 0; {2757#(exists ((|ULTIMATE.start_main_~#s~0.base| Int) (|ULTIMATE.start_main_~#s~0.offset| Int)) (and (= ULTIMATE.start_sll_length_~head.base (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0) 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= ULTIMATE.start_sll_length_~head.offset (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0))))} is VALID [2020-07-28 18:09:43,728 INFO L280 TraceCheckUtils]: 28: Hoare triple {2757#(exists ((|ULTIMATE.start_main_~#s~0.base| Int) (|ULTIMATE.start_main_~#s~0.offset| Int)) (and (= ULTIMATE.start_sll_length_~head.base (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0) 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= ULTIMATE.start_sll_length_~head.offset (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0))))} assume !!(sll_length_~head.base != 0 || sll_length_~head.offset != 0);sll_length_#t~post4 := sll_length_~len~0;sll_length_~len~0 := 1 + sll_length_#t~post4;havoc sll_length_#t~post4;call sll_length_#t~mem5.base, sll_length_#t~mem5.offset := read~$Pointer$(sll_length_~head.base, sll_length_~head.offset, 4);sll_length_~head.base, sll_length_~head.offset := sll_length_#t~mem5.base, sll_length_#t~mem5.offset;havoc sll_length_#t~mem5.base, sll_length_#t~mem5.offset; {2761#(exists ((|ULTIMATE.start_main_~#s~0.base| Int) (|ULTIMATE.start_main_~#s~0.offset| Int)) (and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) ULTIMATE.start_sll_length_~head.offset) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0) 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) ULTIMATE.start_sll_length_~head.base) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0))))} is VALID [2020-07-28 18:09:43,729 INFO L280 TraceCheckUtils]: 29: Hoare triple {2761#(exists ((|ULTIMATE.start_main_~#s~0.base| Int) (|ULTIMATE.start_main_~#s~0.offset| Int)) (and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) ULTIMATE.start_sll_length_~head.offset) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0) 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0))) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) ULTIMATE.start_sll_length_~head.base) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (= 0 (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) 0)) 0))))} assume !!(sll_length_~head.base != 0 || sll_length_~head.offset != 0);sll_length_#t~post4 := sll_length_~len~0;sll_length_~len~0 := 1 + sll_length_#t~post4;havoc sll_length_#t~post4;call sll_length_#t~mem5.base, sll_length_#t~mem5.offset := read~$Pointer$(sll_length_~head.base, sll_length_~head.offset, 4);sll_length_~head.base, sll_length_~head.offset := sll_length_#t~mem5.base, sll_length_#t~mem5.offset;havoc sll_length_#t~mem5.base, sll_length_#t~mem5.offset; {2666#(and (= 0 ULTIMATE.start_sll_length_~head.offset) (= 0 ULTIMATE.start_sll_length_~head.base))} is VALID [2020-07-28 18:09:43,730 INFO L280 TraceCheckUtils]: 30: Hoare triple {2666#(and (= 0 ULTIMATE.start_sll_length_~head.offset) (= 0 ULTIMATE.start_sll_length_~head.base))} assume !!(sll_length_~head.base != 0 || sll_length_~head.offset != 0);sll_length_#t~post4 := sll_length_~len~0;sll_length_~len~0 := 1 + sll_length_#t~post4;havoc sll_length_#t~post4;call sll_length_#t~mem5.base, sll_length_#t~mem5.offset := read~$Pointer$(sll_length_~head.base, sll_length_~head.offset, 4);sll_length_~head.base, sll_length_~head.offset := sll_length_#t~mem5.base, sll_length_#t~mem5.offset;havoc sll_length_#t~mem5.base, sll_length_#t~mem5.offset; {2656#false} is VALID [2020-07-28 18:09:43,730 INFO L280 TraceCheckUtils]: 31: Hoare triple {2656#false} assume !(sll_length_~head.base != 0 || sll_length_~head.offset != 0); {2656#false} is VALID [2020-07-28 18:09:43,730 INFO L280 TraceCheckUtils]: 32: Hoare triple {2656#false} sll_length_#res := sll_length_~len~0; {2656#false} is VALID [2020-07-28 18:09:43,730 INFO L280 TraceCheckUtils]: 33: Hoare triple {2656#false} main_#t~ret22 := sll_length_#res;assume -2147483648 <= main_#t~ret22 && main_#t~ret22 <= 2147483647; {2656#false} is VALID [2020-07-28 18:09:43,730 INFO L280 TraceCheckUtils]: 34: Hoare triple {2656#false} assume main_~k~0 + main_~len~2 != main_#t~ret22;havoc main_#t~mem21.base, main_#t~mem21.offset;havoc main_#t~ret22; {2656#false} is VALID [2020-07-28 18:09:43,731 INFO L280 TraceCheckUtils]: 35: Hoare triple {2656#false} assume !false; {2656#false} is VALID [2020-07-28 18:09:43,739 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:09:43,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-28 18:09:43,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2020-07-28 18:09:43,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041740136] [2020-07-28 18:09:43,741 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 36 [2020-07-28 18:09:43,741 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:09:43,741 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 20 states. [2020-07-28 18:09:43,840 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 58 edges. 58 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:09:43,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-07-28 18:09:43,840 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:09:43,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-07-28 18:09:43,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2020-07-28 18:09:43,841 INFO L87 Difference]: Start difference. First operand 97 states and 125 transitions. Second operand 20 states. [2020-07-28 18:09:46,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:09:46,351 INFO L93 Difference]: Finished difference Result 168 states and 212 transitions. [2020-07-28 18:09:46,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-28 18:09:46,351 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 36 [2020-07-28 18:09:46,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:09:46,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-07-28 18:09:46,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 106 transitions. [2020-07-28 18:09:46,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-07-28 18:09:46,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 106 transitions. [2020-07-28 18:09:46,355 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states and 106 transitions. [2020-07-28 18:09:46,546 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 106 edges. 106 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:09:46,549 INFO L225 Difference]: With dead ends: 168 [2020-07-28 18:09:46,550 INFO L226 Difference]: Without dead ends: 158 [2020-07-28 18:09:46,550 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=103, Invalid=547, Unknown=0, NotChecked=0, Total=650 [2020-07-28 18:09:46,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-07-28 18:09:46,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 129. [2020-07-28 18:09:46,938 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:09:46,938 INFO L82 GeneralOperation]: Start isEquivalent. First operand 158 states. Second operand 129 states. [2020-07-28 18:09:46,939 INFO L74 IsIncluded]: Start isIncluded. First operand 158 states. Second operand 129 states. [2020-07-28 18:09:46,939 INFO L87 Difference]: Start difference. First operand 158 states. Second operand 129 states. [2020-07-28 18:09:46,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:09:46,945 INFO L93 Difference]: Finished difference Result 158 states and 200 transitions. [2020-07-28 18:09:46,945 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 200 transitions. [2020-07-28 18:09:46,945 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:09:46,946 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:09:46,946 INFO L74 IsIncluded]: Start isIncluded. First operand 129 states. Second operand 158 states. [2020-07-28 18:09:46,946 INFO L87 Difference]: Start difference. First operand 129 states. Second operand 158 states. [2020-07-28 18:09:46,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:09:46,951 INFO L93 Difference]: Finished difference Result 158 states and 200 transitions. [2020-07-28 18:09:46,951 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 200 transitions. [2020-07-28 18:09:46,952 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:09:46,952 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:09:46,952 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:09:46,952 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:09:46,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-07-28 18:09:46,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 166 transitions. [2020-07-28 18:09:46,956 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 166 transitions. Word has length 36 [2020-07-28 18:09:46,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:09:46,956 INFO L479 AbstractCegarLoop]: Abstraction has 129 states and 166 transitions. [2020-07-28 18:09:46,957 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-07-28 18:09:46,957 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 166 transitions. [2020-07-28 18:09:46,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-28 18:09:46,957 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:09:46,958 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:09:47,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-28 18:09:47,172 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:09:47,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:09:47,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1169066102, now seen corresponding path program 1 times [2020-07-28 18:09:47,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:09:47,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715751629] [2020-07-28 18:09:47,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:09:47,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:09:47,323 INFO L280 TraceCheckUtils]: 0: Hoare triple {3515#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {3515#true} is VALID [2020-07-28 18:09:47,325 INFO L280 TraceCheckUtils]: 1: Hoare triple {3515#true} havoc main_#res;havoc main_#t~ret14, main_#t~ret15.base, main_#t~ret15.offset, main_#t~ret16, main_#t~ret19, main_#t~post20, main_~position~0, main_#t~nondet17, main_#t~short18, main_#t~mem21.base, main_#t~mem21.offset, main_#t~ret22, main_#t~mem23.base, main_#t~mem23.offset, main_~len~2, main_~#s~0.base, main_~#s~0.offset, main_~k~0, main_~i~0;_get_nondet_int_#in~from, _get_nondet_int_#in~until := 2, 5;havoc _get_nondet_int_#res;havoc _get_nondet_int_#t~post13, _get_nondet_int_#t~nondet11, _get_nondet_int_#t~short12, _get_nondet_int_~from, _get_nondet_int_~until, _get_nondet_int_~len~1;_get_nondet_int_~from := _get_nondet_int_#in~from;_get_nondet_int_~until := _get_nondet_int_#in~until;_get_nondet_int_~len~1 := _get_nondet_int_~from; {3517#(<= ULTIMATE.start__get_nondet_int_~len~1 2)} is VALID [2020-07-28 18:09:47,325 INFO L280 TraceCheckUtils]: 2: Hoare triple {3517#(<= ULTIMATE.start__get_nondet_int_~len~1 2)} _get_nondet_int_#t~short12 := _get_nondet_int_~len~1 < _get_nondet_int_~until; {3517#(<= ULTIMATE.start__get_nondet_int_~len~1 2)} is VALID [2020-07-28 18:09:47,326 INFO L280 TraceCheckUtils]: 3: Hoare triple {3517#(<= ULTIMATE.start__get_nondet_int_~len~1 2)} assume _get_nondet_int_#t~short12;assume -2147483648 <= _get_nondet_int_#t~nondet11 && _get_nondet_int_#t~nondet11 <= 2147483647;_get_nondet_int_#t~short12 := 0 != _get_nondet_int_#t~nondet11; {3517#(<= ULTIMATE.start__get_nondet_int_~len~1 2)} is VALID [2020-07-28 18:09:47,327 INFO L280 TraceCheckUtils]: 4: Hoare triple {3517#(<= ULTIMATE.start__get_nondet_int_~len~1 2)} assume !_get_nondet_int_#t~short12;havoc _get_nondet_int_#t~nondet11;havoc _get_nondet_int_#t~short12; {3517#(<= ULTIMATE.start__get_nondet_int_~len~1 2)} is VALID [2020-07-28 18:09:47,328 INFO L280 TraceCheckUtils]: 5: Hoare triple {3517#(<= ULTIMATE.start__get_nondet_int_~len~1 2)} _get_nondet_int_#res := _get_nondet_int_~len~1; {3518#(<= |ULTIMATE.start__get_nondet_int_#res| 2)} is VALID [2020-07-28 18:09:47,329 INFO L280 TraceCheckUtils]: 6: Hoare triple {3518#(<= |ULTIMATE.start__get_nondet_int_#res| 2)} main_#t~ret14 := _get_nondet_int_#res;assume -2147483648 <= main_#t~ret14 && main_#t~ret14 <= 2147483647;main_~len~2 := main_#t~ret14;havoc main_#t~ret14;call main_~#s~0.base, main_~#s~0.offset := #Ultimate.allocOnStack(4);sll_create_#in~len := main_~len~2;havoc sll_create_#res.base, sll_create_#res.offset;havoc sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, sll_create_#t~post2, sll_create_~len, sll_create_~head~0.base, sll_create_~head~0.offset;sll_create_~len := sll_create_#in~len;sll_create_~head~0.base, sll_create_~head~0.offset := 0, 0; {3519#(<= ULTIMATE.start_main_~len~2 2)} is VALID [2020-07-28 18:09:47,329 INFO L280 TraceCheckUtils]: 7: Hoare triple {3519#(<= ULTIMATE.start_main_~len~2 2)} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {3519#(<= ULTIMATE.start_main_~len~2 2)} is VALID [2020-07-28 18:09:47,330 INFO L280 TraceCheckUtils]: 8: Hoare triple {3519#(<= ULTIMATE.start_main_~len~2 2)} assume !!(sll_create_#t~post2 > 0);havoc sll_create_#t~post2;call sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset := #Ultimate.allocOnHeap(4);sll_create_~new_head~0.base, sll_create_~new_head~0.offset := sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset; {3519#(<= ULTIMATE.start_main_~len~2 2)} is VALID [2020-07-28 18:09:47,331 INFO L280 TraceCheckUtils]: 9: Hoare triple {3519#(<= ULTIMATE.start_main_~len~2 2)} assume !(0 == sll_create_~new_head~0.base && 0 == sll_create_~new_head~0.offset); {3519#(<= ULTIMATE.start_main_~len~2 2)} is VALID [2020-07-28 18:09:47,332 INFO L280 TraceCheckUtils]: 10: Hoare triple {3519#(<= ULTIMATE.start_main_~len~2 2)} call write~$Pointer$(sll_create_~head~0.base, sll_create_~head~0.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, 4);sll_create_~head~0.base, sll_create_~head~0.offset := sll_create_~new_head~0.base, sll_create_~new_head~0.offset; {3519#(<= ULTIMATE.start_main_~len~2 2)} is VALID [2020-07-28 18:09:47,332 INFO L280 TraceCheckUtils]: 11: Hoare triple {3519#(<= ULTIMATE.start_main_~len~2 2)} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {3519#(<= ULTIMATE.start_main_~len~2 2)} is VALID [2020-07-28 18:09:47,333 INFO L280 TraceCheckUtils]: 12: Hoare triple {3519#(<= ULTIMATE.start_main_~len~2 2)} assume !!(sll_create_#t~post2 > 0);havoc sll_create_#t~post2;call sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset := #Ultimate.allocOnHeap(4);sll_create_~new_head~0.base, sll_create_~new_head~0.offset := sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset; {3519#(<= ULTIMATE.start_main_~len~2 2)} is VALID [2020-07-28 18:09:47,334 INFO L280 TraceCheckUtils]: 13: Hoare triple {3519#(<= ULTIMATE.start_main_~len~2 2)} assume !(0 == sll_create_~new_head~0.base && 0 == sll_create_~new_head~0.offset); {3519#(<= ULTIMATE.start_main_~len~2 2)} is VALID [2020-07-28 18:09:47,335 INFO L280 TraceCheckUtils]: 14: Hoare triple {3519#(<= ULTIMATE.start_main_~len~2 2)} call write~$Pointer$(sll_create_~head~0.base, sll_create_~head~0.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, 4);sll_create_~head~0.base, sll_create_~head~0.offset := sll_create_~new_head~0.base, sll_create_~new_head~0.offset; {3519#(<= ULTIMATE.start_main_~len~2 2)} is VALID [2020-07-28 18:09:47,336 INFO L280 TraceCheckUtils]: 15: Hoare triple {3519#(<= ULTIMATE.start_main_~len~2 2)} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {3519#(<= ULTIMATE.start_main_~len~2 2)} is VALID [2020-07-28 18:09:47,336 INFO L280 TraceCheckUtils]: 16: Hoare triple {3519#(<= ULTIMATE.start_main_~len~2 2)} assume !(sll_create_#t~post2 > 0);havoc sll_create_#t~post2; {3519#(<= ULTIMATE.start_main_~len~2 2)} is VALID [2020-07-28 18:09:47,337 INFO L280 TraceCheckUtils]: 17: Hoare triple {3519#(<= ULTIMATE.start_main_~len~2 2)} sll_create_#res.base, sll_create_#res.offset := sll_create_~head~0.base, sll_create_~head~0.offset; {3519#(<= ULTIMATE.start_main_~len~2 2)} is VALID [2020-07-28 18:09:47,338 INFO L280 TraceCheckUtils]: 18: Hoare triple {3519#(<= ULTIMATE.start_main_~len~2 2)} main_#t~ret15.base, main_#t~ret15.offset := sll_create_#res.base, sll_create_#res.offset;call write~init~$Pointer$(main_#t~ret15.base, main_#t~ret15.offset, main_~#s~0.base, main_~#s~0.offset, 4);havoc main_#t~ret15.base, main_#t~ret15.offset;_get_nondet_int_#in~from, _get_nondet_int_#in~until := 0, main_~len~2 - 1;havoc _get_nondet_int_#res;havoc _get_nondet_int_#t~post13, _get_nondet_int_#t~nondet11, _get_nondet_int_#t~short12, _get_nondet_int_~from, _get_nondet_int_~until, _get_nondet_int_~len~1;_get_nondet_int_~from := _get_nondet_int_#in~from;_get_nondet_int_~until := _get_nondet_int_#in~until;_get_nondet_int_~len~1 := _get_nondet_int_~from; {3520#(and (<= ULTIMATE.start__get_nondet_int_~until 1) (= 0 ULTIMATE.start__get_nondet_int_~len~1))} is VALID [2020-07-28 18:09:47,339 INFO L280 TraceCheckUtils]: 19: Hoare triple {3520#(and (<= ULTIMATE.start__get_nondet_int_~until 1) (= 0 ULTIMATE.start__get_nondet_int_~len~1))} _get_nondet_int_#t~short12 := _get_nondet_int_~len~1 < _get_nondet_int_~until; {3520#(and (<= ULTIMATE.start__get_nondet_int_~until 1) (= 0 ULTIMATE.start__get_nondet_int_~len~1))} is VALID [2020-07-28 18:09:47,340 INFO L280 TraceCheckUtils]: 20: Hoare triple {3520#(and (<= ULTIMATE.start__get_nondet_int_~until 1) (= 0 ULTIMATE.start__get_nondet_int_~len~1))} assume _get_nondet_int_#t~short12;assume -2147483648 <= _get_nondet_int_#t~nondet11 && _get_nondet_int_#t~nondet11 <= 2147483647;_get_nondet_int_#t~short12 := 0 != _get_nondet_int_#t~nondet11; {3520#(and (<= ULTIMATE.start__get_nondet_int_~until 1) (= 0 ULTIMATE.start__get_nondet_int_~len~1))} is VALID [2020-07-28 18:09:47,341 INFO L280 TraceCheckUtils]: 21: Hoare triple {3520#(and (<= ULTIMATE.start__get_nondet_int_~until 1) (= 0 ULTIMATE.start__get_nondet_int_~len~1))} assume !!_get_nondet_int_#t~short12;havoc _get_nondet_int_#t~nondet11;havoc _get_nondet_int_#t~short12;_get_nondet_int_#t~post13 := _get_nondet_int_~len~1;_get_nondet_int_~len~1 := 1 + _get_nondet_int_#t~post13;havoc _get_nondet_int_#t~post13; {3521#(<= ULTIMATE.start__get_nondet_int_~until ULTIMATE.start__get_nondet_int_~len~1)} is VALID [2020-07-28 18:09:47,342 INFO L280 TraceCheckUtils]: 22: Hoare triple {3521#(<= ULTIMATE.start__get_nondet_int_~until ULTIMATE.start__get_nondet_int_~len~1)} _get_nondet_int_#t~short12 := _get_nondet_int_~len~1 < _get_nondet_int_~until; {3522#(not |ULTIMATE.start__get_nondet_int_#t~short12|)} is VALID [2020-07-28 18:09:47,343 INFO L280 TraceCheckUtils]: 23: Hoare triple {3522#(not |ULTIMATE.start__get_nondet_int_#t~short12|)} assume _get_nondet_int_#t~short12;assume -2147483648 <= _get_nondet_int_#t~nondet11 && _get_nondet_int_#t~nondet11 <= 2147483647;_get_nondet_int_#t~short12 := 0 != _get_nondet_int_#t~nondet11; {3516#false} is VALID [2020-07-28 18:09:47,343 INFO L280 TraceCheckUtils]: 24: Hoare triple {3516#false} assume !_get_nondet_int_#t~short12;havoc _get_nondet_int_#t~nondet11;havoc _get_nondet_int_#t~short12; {3516#false} is VALID [2020-07-28 18:09:47,343 INFO L280 TraceCheckUtils]: 25: Hoare triple {3516#false} _get_nondet_int_#res := _get_nondet_int_~len~1; {3516#false} is VALID [2020-07-28 18:09:47,343 INFO L280 TraceCheckUtils]: 26: Hoare triple {3516#false} main_#t~ret16 := _get_nondet_int_#res;assume -2147483648 <= main_#t~ret16 && main_#t~ret16 <= 2147483647;main_~k~0 := main_#t~ret16;havoc main_#t~ret16;main_~i~0 := 0; {3516#false} is VALID [2020-07-28 18:09:47,344 INFO L280 TraceCheckUtils]: 27: Hoare triple {3516#false} main_#t~short18 := main_~i~0 < main_~k~0; {3516#false} is VALID [2020-07-28 18:09:47,344 INFO L280 TraceCheckUtils]: 28: Hoare triple {3516#false} assume !main_#t~short18; {3516#false} is VALID [2020-07-28 18:09:47,344 INFO L280 TraceCheckUtils]: 29: Hoare triple {3516#false} assume !main_#t~short18;havoc main_#t~nondet17;havoc main_#t~short18; {3516#false} is VALID [2020-07-28 18:09:47,344 INFO L280 TraceCheckUtils]: 30: Hoare triple {3516#false} call main_#t~mem21.base, main_#t~mem21.offset := read~$Pointer$(main_~#s~0.base, main_~#s~0.offset, 4);sll_length_#in~head.base, sll_length_#in~head.offset := main_#t~mem21.base, main_#t~mem21.offset;havoc sll_length_#res;havoc sll_length_#t~post4, sll_length_#t~mem5.base, sll_length_#t~mem5.offset, sll_length_~head.base, sll_length_~head.offset, sll_length_~len~0;sll_length_~head.base, sll_length_~head.offset := sll_length_#in~head.base, sll_length_#in~head.offset;sll_length_~len~0 := 0; {3516#false} is VALID [2020-07-28 18:09:47,345 INFO L280 TraceCheckUtils]: 31: Hoare triple {3516#false} assume !!(sll_length_~head.base != 0 || sll_length_~head.offset != 0);sll_length_#t~post4 := sll_length_~len~0;sll_length_~len~0 := 1 + sll_length_#t~post4;havoc sll_length_#t~post4;call sll_length_#t~mem5.base, sll_length_#t~mem5.offset := read~$Pointer$(sll_length_~head.base, sll_length_~head.offset, 4);sll_length_~head.base, sll_length_~head.offset := sll_length_#t~mem5.base, sll_length_#t~mem5.offset;havoc sll_length_#t~mem5.base, sll_length_#t~mem5.offset; {3516#false} is VALID [2020-07-28 18:09:47,345 INFO L280 TraceCheckUtils]: 32: Hoare triple {3516#false} assume !!(sll_length_~head.base != 0 || sll_length_~head.offset != 0);sll_length_#t~post4 := sll_length_~len~0;sll_length_~len~0 := 1 + sll_length_#t~post4;havoc sll_length_#t~post4;call sll_length_#t~mem5.base, sll_length_#t~mem5.offset := read~$Pointer$(sll_length_~head.base, sll_length_~head.offset, 4);sll_length_~head.base, sll_length_~head.offset := sll_length_#t~mem5.base, sll_length_#t~mem5.offset;havoc sll_length_#t~mem5.base, sll_length_#t~mem5.offset; {3516#false} is VALID [2020-07-28 18:09:47,345 INFO L280 TraceCheckUtils]: 33: Hoare triple {3516#false} assume !(sll_length_~head.base != 0 || sll_length_~head.offset != 0); {3516#false} is VALID [2020-07-28 18:09:47,345 INFO L280 TraceCheckUtils]: 34: Hoare triple {3516#false} sll_length_#res := sll_length_~len~0; {3516#false} is VALID [2020-07-28 18:09:47,345 INFO L280 TraceCheckUtils]: 35: Hoare triple {3516#false} main_#t~ret22 := sll_length_#res;assume -2147483648 <= main_#t~ret22 && main_#t~ret22 <= 2147483647; {3516#false} is VALID [2020-07-28 18:09:47,345 INFO L280 TraceCheckUtils]: 36: Hoare triple {3516#false} assume main_~k~0 + main_~len~2 != main_#t~ret22;havoc main_#t~mem21.base, main_#t~mem21.offset;havoc main_#t~ret22; {3516#false} is VALID [2020-07-28 18:09:47,346 INFO L280 TraceCheckUtils]: 37: Hoare triple {3516#false} assume !false; {3516#false} is VALID [2020-07-28 18:09:47,350 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-28 18:09:47,350 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715751629] [2020-07-28 18:09:47,351 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459816981] [2020-07-28 18:09:47,351 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 [2020-07-28 18:09:47,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:09:47,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-28 18:09:47,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:09:47,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 18:09:47,685 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 18:09:47,711 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 18:09:47,738 INFO L280 TraceCheckUtils]: 0: Hoare triple {3515#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {3515#true} is VALID [2020-07-28 18:09:47,739 INFO L280 TraceCheckUtils]: 1: Hoare triple {3515#true} havoc main_#res;havoc main_#t~ret14, main_#t~ret15.base, main_#t~ret15.offset, main_#t~ret16, main_#t~ret19, main_#t~post20, main_~position~0, main_#t~nondet17, main_#t~short18, main_#t~mem21.base, main_#t~mem21.offset, main_#t~ret22, main_#t~mem23.base, main_#t~mem23.offset, main_~len~2, main_~#s~0.base, main_~#s~0.offset, main_~k~0, main_~i~0;_get_nondet_int_#in~from, _get_nondet_int_#in~until := 2, 5;havoc _get_nondet_int_#res;havoc _get_nondet_int_#t~post13, _get_nondet_int_#t~nondet11, _get_nondet_int_#t~short12, _get_nondet_int_~from, _get_nondet_int_~until, _get_nondet_int_~len~1;_get_nondet_int_~from := _get_nondet_int_#in~from;_get_nondet_int_~until := _get_nondet_int_#in~until;_get_nondet_int_~len~1 := _get_nondet_int_~from; {3517#(<= ULTIMATE.start__get_nondet_int_~len~1 2)} is VALID [2020-07-28 18:09:47,744 INFO L280 TraceCheckUtils]: 2: Hoare triple {3517#(<= ULTIMATE.start__get_nondet_int_~len~1 2)} _get_nondet_int_#t~short12 := _get_nondet_int_~len~1 < _get_nondet_int_~until; {3517#(<= ULTIMATE.start__get_nondet_int_~len~1 2)} is VALID [2020-07-28 18:09:47,744 INFO L280 TraceCheckUtils]: 3: Hoare triple {3517#(<= ULTIMATE.start__get_nondet_int_~len~1 2)} assume _get_nondet_int_#t~short12;assume -2147483648 <= _get_nondet_int_#t~nondet11 && _get_nondet_int_#t~nondet11 <= 2147483647;_get_nondet_int_#t~short12 := 0 != _get_nondet_int_#t~nondet11; {3517#(<= ULTIMATE.start__get_nondet_int_~len~1 2)} is VALID [2020-07-28 18:09:47,745 INFO L280 TraceCheckUtils]: 4: Hoare triple {3517#(<= ULTIMATE.start__get_nondet_int_~len~1 2)} assume !_get_nondet_int_#t~short12;havoc _get_nondet_int_#t~nondet11;havoc _get_nondet_int_#t~short12; {3517#(<= ULTIMATE.start__get_nondet_int_~len~1 2)} is VALID [2020-07-28 18:09:47,746 INFO L280 TraceCheckUtils]: 5: Hoare triple {3517#(<= ULTIMATE.start__get_nondet_int_~len~1 2)} _get_nondet_int_#res := _get_nondet_int_~len~1; {3518#(<= |ULTIMATE.start__get_nondet_int_#res| 2)} is VALID [2020-07-28 18:09:47,747 INFO L280 TraceCheckUtils]: 6: Hoare triple {3518#(<= |ULTIMATE.start__get_nondet_int_#res| 2)} main_#t~ret14 := _get_nondet_int_#res;assume -2147483648 <= main_#t~ret14 && main_#t~ret14 <= 2147483647;main_~len~2 := main_#t~ret14;havoc main_#t~ret14;call main_~#s~0.base, main_~#s~0.offset := #Ultimate.allocOnStack(4);sll_create_#in~len := main_~len~2;havoc sll_create_#res.base, sll_create_#res.offset;havoc sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, sll_create_#t~post2, sll_create_~len, sll_create_~head~0.base, sll_create_~head~0.offset;sll_create_~len := sll_create_#in~len;sll_create_~head~0.base, sll_create_~head~0.offset := 0, 0; {3519#(<= ULTIMATE.start_main_~len~2 2)} is VALID [2020-07-28 18:09:47,747 INFO L280 TraceCheckUtils]: 7: Hoare triple {3519#(<= ULTIMATE.start_main_~len~2 2)} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {3519#(<= ULTIMATE.start_main_~len~2 2)} is VALID [2020-07-28 18:09:47,748 INFO L280 TraceCheckUtils]: 8: Hoare triple {3519#(<= ULTIMATE.start_main_~len~2 2)} assume !!(sll_create_#t~post2 > 0);havoc sll_create_#t~post2;call sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset := #Ultimate.allocOnHeap(4);sll_create_~new_head~0.base, sll_create_~new_head~0.offset := sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset; {3519#(<= ULTIMATE.start_main_~len~2 2)} is VALID [2020-07-28 18:09:47,748 INFO L280 TraceCheckUtils]: 9: Hoare triple {3519#(<= ULTIMATE.start_main_~len~2 2)} assume !(0 == sll_create_~new_head~0.base && 0 == sll_create_~new_head~0.offset); {3519#(<= ULTIMATE.start_main_~len~2 2)} is VALID [2020-07-28 18:09:47,749 INFO L280 TraceCheckUtils]: 10: Hoare triple {3519#(<= ULTIMATE.start_main_~len~2 2)} call write~$Pointer$(sll_create_~head~0.base, sll_create_~head~0.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, 4);sll_create_~head~0.base, sll_create_~head~0.offset := sll_create_~new_head~0.base, sll_create_~new_head~0.offset; {3519#(<= ULTIMATE.start_main_~len~2 2)} is VALID [2020-07-28 18:09:47,749 INFO L280 TraceCheckUtils]: 11: Hoare triple {3519#(<= ULTIMATE.start_main_~len~2 2)} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {3519#(<= ULTIMATE.start_main_~len~2 2)} is VALID [2020-07-28 18:09:47,750 INFO L280 TraceCheckUtils]: 12: Hoare triple {3519#(<= ULTIMATE.start_main_~len~2 2)} assume !!(sll_create_#t~post2 > 0);havoc sll_create_#t~post2;call sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset := #Ultimate.allocOnHeap(4);sll_create_~new_head~0.base, sll_create_~new_head~0.offset := sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset; {3519#(<= ULTIMATE.start_main_~len~2 2)} is VALID [2020-07-28 18:09:47,751 INFO L280 TraceCheckUtils]: 13: Hoare triple {3519#(<= ULTIMATE.start_main_~len~2 2)} assume !(0 == sll_create_~new_head~0.base && 0 == sll_create_~new_head~0.offset); {3519#(<= ULTIMATE.start_main_~len~2 2)} is VALID [2020-07-28 18:09:47,751 INFO L280 TraceCheckUtils]: 14: Hoare triple {3519#(<= ULTIMATE.start_main_~len~2 2)} call write~$Pointer$(sll_create_~head~0.base, sll_create_~head~0.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, 4);sll_create_~head~0.base, sll_create_~head~0.offset := sll_create_~new_head~0.base, sll_create_~new_head~0.offset; {3519#(<= ULTIMATE.start_main_~len~2 2)} is VALID [2020-07-28 18:09:47,752 INFO L280 TraceCheckUtils]: 15: Hoare triple {3519#(<= ULTIMATE.start_main_~len~2 2)} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {3519#(<= ULTIMATE.start_main_~len~2 2)} is VALID [2020-07-28 18:09:47,752 INFO L280 TraceCheckUtils]: 16: Hoare triple {3519#(<= ULTIMATE.start_main_~len~2 2)} assume !(sll_create_#t~post2 > 0);havoc sll_create_#t~post2; {3519#(<= ULTIMATE.start_main_~len~2 2)} is VALID [2020-07-28 18:09:47,753 INFO L280 TraceCheckUtils]: 17: Hoare triple {3519#(<= ULTIMATE.start_main_~len~2 2)} sll_create_#res.base, sll_create_#res.offset := sll_create_~head~0.base, sll_create_~head~0.offset; {3519#(<= ULTIMATE.start_main_~len~2 2)} is VALID [2020-07-28 18:09:47,754 INFO L280 TraceCheckUtils]: 18: Hoare triple {3519#(<= ULTIMATE.start_main_~len~2 2)} main_#t~ret15.base, main_#t~ret15.offset := sll_create_#res.base, sll_create_#res.offset;call write~init~$Pointer$(main_#t~ret15.base, main_#t~ret15.offset, main_~#s~0.base, main_~#s~0.offset, 4);havoc main_#t~ret15.base, main_#t~ret15.offset;_get_nondet_int_#in~from, _get_nondet_int_#in~until := 0, main_~len~2 - 1;havoc _get_nondet_int_#res;havoc _get_nondet_int_#t~post13, _get_nondet_int_#t~nondet11, _get_nondet_int_#t~short12, _get_nondet_int_~from, _get_nondet_int_~until, _get_nondet_int_~len~1;_get_nondet_int_~from := _get_nondet_int_#in~from;_get_nondet_int_~until := _get_nondet_int_#in~until;_get_nondet_int_~len~1 := _get_nondet_int_~from; {3580#(and (<= 0 ULTIMATE.start__get_nondet_int_~len~1) (<= ULTIMATE.start__get_nondet_int_~until 1))} is VALID [2020-07-28 18:09:47,755 INFO L280 TraceCheckUtils]: 19: Hoare triple {3580#(and (<= 0 ULTIMATE.start__get_nondet_int_~len~1) (<= ULTIMATE.start__get_nondet_int_~until 1))} _get_nondet_int_#t~short12 := _get_nondet_int_~len~1 < _get_nondet_int_~until; {3580#(and (<= 0 ULTIMATE.start__get_nondet_int_~len~1) (<= ULTIMATE.start__get_nondet_int_~until 1))} is VALID [2020-07-28 18:09:47,756 INFO L280 TraceCheckUtils]: 20: Hoare triple {3580#(and (<= 0 ULTIMATE.start__get_nondet_int_~len~1) (<= ULTIMATE.start__get_nondet_int_~until 1))} assume _get_nondet_int_#t~short12;assume -2147483648 <= _get_nondet_int_#t~nondet11 && _get_nondet_int_#t~nondet11 <= 2147483647;_get_nondet_int_#t~short12 := 0 != _get_nondet_int_#t~nondet11; {3580#(and (<= 0 ULTIMATE.start__get_nondet_int_~len~1) (<= ULTIMATE.start__get_nondet_int_~until 1))} is VALID [2020-07-28 18:09:47,756 INFO L280 TraceCheckUtils]: 21: Hoare triple {3580#(and (<= 0 ULTIMATE.start__get_nondet_int_~len~1) (<= ULTIMATE.start__get_nondet_int_~until 1))} assume !!_get_nondet_int_#t~short12;havoc _get_nondet_int_#t~nondet11;havoc _get_nondet_int_#t~short12;_get_nondet_int_#t~post13 := _get_nondet_int_~len~1;_get_nondet_int_~len~1 := 1 + _get_nondet_int_#t~post13;havoc _get_nondet_int_#t~post13; {3590#(and (<= ULTIMATE.start__get_nondet_int_~until 1) (<= 1 ULTIMATE.start__get_nondet_int_~len~1))} is VALID [2020-07-28 18:09:47,757 INFO L280 TraceCheckUtils]: 22: Hoare triple {3590#(and (<= ULTIMATE.start__get_nondet_int_~until 1) (<= 1 ULTIMATE.start__get_nondet_int_~len~1))} _get_nondet_int_#t~short12 := _get_nondet_int_~len~1 < _get_nondet_int_~until; {3522#(not |ULTIMATE.start__get_nondet_int_#t~short12|)} is VALID [2020-07-28 18:09:47,757 INFO L280 TraceCheckUtils]: 23: Hoare triple {3522#(not |ULTIMATE.start__get_nondet_int_#t~short12|)} assume _get_nondet_int_#t~short12;assume -2147483648 <= _get_nondet_int_#t~nondet11 && _get_nondet_int_#t~nondet11 <= 2147483647;_get_nondet_int_#t~short12 := 0 != _get_nondet_int_#t~nondet11; {3516#false} is VALID [2020-07-28 18:09:47,758 INFO L280 TraceCheckUtils]: 24: Hoare triple {3516#false} assume !_get_nondet_int_#t~short12;havoc _get_nondet_int_#t~nondet11;havoc _get_nondet_int_#t~short12; {3516#false} is VALID [2020-07-28 18:09:47,758 INFO L280 TraceCheckUtils]: 25: Hoare triple {3516#false} _get_nondet_int_#res := _get_nondet_int_~len~1; {3516#false} is VALID [2020-07-28 18:09:47,758 INFO L280 TraceCheckUtils]: 26: Hoare triple {3516#false} main_#t~ret16 := _get_nondet_int_#res;assume -2147483648 <= main_#t~ret16 && main_#t~ret16 <= 2147483647;main_~k~0 := main_#t~ret16;havoc main_#t~ret16;main_~i~0 := 0; {3516#false} is VALID [2020-07-28 18:09:47,758 INFO L280 TraceCheckUtils]: 27: Hoare triple {3516#false} main_#t~short18 := main_~i~0 < main_~k~0; {3516#false} is VALID [2020-07-28 18:09:47,759 INFO L280 TraceCheckUtils]: 28: Hoare triple {3516#false} assume !main_#t~short18; {3516#false} is VALID [2020-07-28 18:09:47,759 INFO L280 TraceCheckUtils]: 29: Hoare triple {3516#false} assume !main_#t~short18;havoc main_#t~nondet17;havoc main_#t~short18; {3516#false} is VALID [2020-07-28 18:09:47,759 INFO L280 TraceCheckUtils]: 30: Hoare triple {3516#false} call main_#t~mem21.base, main_#t~mem21.offset := read~$Pointer$(main_~#s~0.base, main_~#s~0.offset, 4);sll_length_#in~head.base, sll_length_#in~head.offset := main_#t~mem21.base, main_#t~mem21.offset;havoc sll_length_#res;havoc sll_length_#t~post4, sll_length_#t~mem5.base, sll_length_#t~mem5.offset, sll_length_~head.base, sll_length_~head.offset, sll_length_~len~0;sll_length_~head.base, sll_length_~head.offset := sll_length_#in~head.base, sll_length_#in~head.offset;sll_length_~len~0 := 0; {3516#false} is VALID [2020-07-28 18:09:47,760 INFO L280 TraceCheckUtils]: 31: Hoare triple {3516#false} assume !!(sll_length_~head.base != 0 || sll_length_~head.offset != 0);sll_length_#t~post4 := sll_length_~len~0;sll_length_~len~0 := 1 + sll_length_#t~post4;havoc sll_length_#t~post4;call sll_length_#t~mem5.base, sll_length_#t~mem5.offset := read~$Pointer$(sll_length_~head.base, sll_length_~head.offset, 4);sll_length_~head.base, sll_length_~head.offset := sll_length_#t~mem5.base, sll_length_#t~mem5.offset;havoc sll_length_#t~mem5.base, sll_length_#t~mem5.offset; {3516#false} is VALID [2020-07-28 18:09:47,760 INFO L280 TraceCheckUtils]: 32: Hoare triple {3516#false} assume !!(sll_length_~head.base != 0 || sll_length_~head.offset != 0);sll_length_#t~post4 := sll_length_~len~0;sll_length_~len~0 := 1 + sll_length_#t~post4;havoc sll_length_#t~post4;call sll_length_#t~mem5.base, sll_length_#t~mem5.offset := read~$Pointer$(sll_length_~head.base, sll_length_~head.offset, 4);sll_length_~head.base, sll_length_~head.offset := sll_length_#t~mem5.base, sll_length_#t~mem5.offset;havoc sll_length_#t~mem5.base, sll_length_#t~mem5.offset; {3516#false} is VALID [2020-07-28 18:09:47,760 INFO L280 TraceCheckUtils]: 33: Hoare triple {3516#false} assume !(sll_length_~head.base != 0 || sll_length_~head.offset != 0); {3516#false} is VALID [2020-07-28 18:09:47,760 INFO L280 TraceCheckUtils]: 34: Hoare triple {3516#false} sll_length_#res := sll_length_~len~0; {3516#false} is VALID [2020-07-28 18:09:47,761 INFO L280 TraceCheckUtils]: 35: Hoare triple {3516#false} main_#t~ret22 := sll_length_#res;assume -2147483648 <= main_#t~ret22 && main_#t~ret22 <= 2147483647; {3516#false} is VALID [2020-07-28 18:09:47,761 INFO L280 TraceCheckUtils]: 36: Hoare triple {3516#false} assume main_~k~0 + main_~len~2 != main_#t~ret22;havoc main_#t~mem21.base, main_#t~mem21.offset;havoc main_#t~ret22; {3516#false} is VALID [2020-07-28 18:09:47,761 INFO L280 TraceCheckUtils]: 37: Hoare triple {3516#false} assume !false; {3516#false} is VALID [2020-07-28 18:09:47,762 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-28 18:09:47,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-28 18:09:47,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2020-07-28 18:09:47,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568145479] [2020-07-28 18:09:47,764 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 38 [2020-07-28 18:09:47,764 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:09:47,764 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states. [2020-07-28 18:09:47,806 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:09:47,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-28 18:09:47,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:09:47,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-28 18:09:47,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-07-28 18:09:47,807 INFO L87 Difference]: Start difference. First operand 129 states and 166 transitions. Second operand 10 states. [2020-07-28 18:09:49,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:09:49,778 INFO L93 Difference]: Finished difference Result 375 states and 494 transitions. [2020-07-28 18:09:49,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-28 18:09:49,778 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 38 [2020-07-28 18:09:49,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:09:49,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-28 18:09:49,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 261 transitions. [2020-07-28 18:09:49,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-28 18:09:49,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 261 transitions. [2020-07-28 18:09:49,785 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states and 261 transitions. [2020-07-28 18:09:50,111 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 261 edges. 261 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:09:50,120 INFO L225 Difference]: With dead ends: 375 [2020-07-28 18:09:50,120 INFO L226 Difference]: Without dead ends: 289 [2020-07-28 18:09:50,122 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=347, Unknown=0, NotChecked=0, Total=462 [2020-07-28 18:09:50,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2020-07-28 18:09:50,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 141. [2020-07-28 18:09:50,588 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:09:50,588 INFO L82 GeneralOperation]: Start isEquivalent. First operand 289 states. Second operand 141 states. [2020-07-28 18:09:50,588 INFO L74 IsIncluded]: Start isIncluded. First operand 289 states. Second operand 141 states. [2020-07-28 18:09:50,589 INFO L87 Difference]: Start difference. First operand 289 states. Second operand 141 states. [2020-07-28 18:09:50,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:09:50,598 INFO L93 Difference]: Finished difference Result 289 states and 364 transitions. [2020-07-28 18:09:50,598 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 364 transitions. [2020-07-28 18:09:50,599 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:09:50,599 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:09:50,599 INFO L74 IsIncluded]: Start isIncluded. First operand 141 states. Second operand 289 states. [2020-07-28 18:09:50,599 INFO L87 Difference]: Start difference. First operand 141 states. Second operand 289 states. [2020-07-28 18:09:50,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:09:50,609 INFO L93 Difference]: Finished difference Result 289 states and 364 transitions. [2020-07-28 18:09:50,609 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 364 transitions. [2020-07-28 18:09:50,610 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:09:50,610 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:09:50,611 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:09:50,611 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:09:50,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-07-28 18:09:50,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 178 transitions. [2020-07-28 18:09:50,615 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 178 transitions. Word has length 38 [2020-07-28 18:09:50,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:09:50,616 INFO L479 AbstractCegarLoop]: Abstraction has 141 states and 178 transitions. [2020-07-28 18:09:50,616 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-28 18:09:50,616 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 178 transitions. [2020-07-28 18:09:50,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-28 18:09:50,617 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:09:50,617 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:09:50,823 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-28 18:09:50,824 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:09:50,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:09:50,825 INFO L82 PathProgramCache]: Analyzing trace with hash 1846037516, now seen corresponding path program 1 times [2020-07-28 18:09:50,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:09:50,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105143940] [2020-07-28 18:09:50,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:09:50,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:09:50,919 INFO L280 TraceCheckUtils]: 0: Hoare triple {4943#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {4943#true} is VALID [2020-07-28 18:09:50,919 INFO L280 TraceCheckUtils]: 1: Hoare triple {4943#true} havoc main_#res;havoc main_#t~ret14, main_#t~ret15.base, main_#t~ret15.offset, main_#t~ret16, main_#t~ret19, main_#t~post20, main_~position~0, main_#t~nondet17, main_#t~short18, main_#t~mem21.base, main_#t~mem21.offset, main_#t~ret22, main_#t~mem23.base, main_#t~mem23.offset, main_~len~2, main_~#s~0.base, main_~#s~0.offset, main_~k~0, main_~i~0;_get_nondet_int_#in~from, _get_nondet_int_#in~until := 2, 5;havoc _get_nondet_int_#res;havoc _get_nondet_int_#t~post13, _get_nondet_int_#t~nondet11, _get_nondet_int_#t~short12, _get_nondet_int_~from, _get_nondet_int_~until, _get_nondet_int_~len~1;_get_nondet_int_~from := _get_nondet_int_#in~from;_get_nondet_int_~until := _get_nondet_int_#in~until;_get_nondet_int_~len~1 := _get_nondet_int_~from; {4943#true} is VALID [2020-07-28 18:09:50,920 INFO L280 TraceCheckUtils]: 2: Hoare triple {4943#true} _get_nondet_int_#t~short12 := _get_nondet_int_~len~1 < _get_nondet_int_~until; {4943#true} is VALID [2020-07-28 18:09:50,920 INFO L280 TraceCheckUtils]: 3: Hoare triple {4943#true} assume _get_nondet_int_#t~short12;assume -2147483648 <= _get_nondet_int_#t~nondet11 && _get_nondet_int_#t~nondet11 <= 2147483647;_get_nondet_int_#t~short12 := 0 != _get_nondet_int_#t~nondet11; {4943#true} is VALID [2020-07-28 18:09:50,921 INFO L280 TraceCheckUtils]: 4: Hoare triple {4943#true} assume !_get_nondet_int_#t~short12;havoc _get_nondet_int_#t~nondet11;havoc _get_nondet_int_#t~short12; {4943#true} is VALID [2020-07-28 18:09:50,921 INFO L280 TraceCheckUtils]: 5: Hoare triple {4943#true} _get_nondet_int_#res := _get_nondet_int_~len~1; {4943#true} is VALID [2020-07-28 18:09:50,921 INFO L280 TraceCheckUtils]: 6: Hoare triple {4943#true} main_#t~ret14 := _get_nondet_int_#res;assume -2147483648 <= main_#t~ret14 && main_#t~ret14 <= 2147483647;main_~len~2 := main_#t~ret14;havoc main_#t~ret14;call main_~#s~0.base, main_~#s~0.offset := #Ultimate.allocOnStack(4);sll_create_#in~len := main_~len~2;havoc sll_create_#res.base, sll_create_#res.offset;havoc sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, sll_create_#t~post2, sll_create_~len, sll_create_~head~0.base, sll_create_~head~0.offset;sll_create_~len := sll_create_#in~len;sll_create_~head~0.base, sll_create_~head~0.offset := 0, 0; {4943#true} is VALID [2020-07-28 18:09:50,921 INFO L280 TraceCheckUtils]: 7: Hoare triple {4943#true} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {4943#true} is VALID [2020-07-28 18:09:50,922 INFO L280 TraceCheckUtils]: 8: Hoare triple {4943#true} assume !!(sll_create_#t~post2 > 0);havoc sll_create_#t~post2;call sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset := #Ultimate.allocOnHeap(4);sll_create_~new_head~0.base, sll_create_~new_head~0.offset := sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset; {4943#true} is VALID [2020-07-28 18:09:50,922 INFO L280 TraceCheckUtils]: 9: Hoare triple {4943#true} assume !(0 == sll_create_~new_head~0.base && 0 == sll_create_~new_head~0.offset); {4943#true} is VALID [2020-07-28 18:09:50,922 INFO L280 TraceCheckUtils]: 10: Hoare triple {4943#true} call write~$Pointer$(sll_create_~head~0.base, sll_create_~head~0.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, 4);sll_create_~head~0.base, sll_create_~head~0.offset := sll_create_~new_head~0.base, sll_create_~new_head~0.offset; {4943#true} is VALID [2020-07-28 18:09:50,922 INFO L280 TraceCheckUtils]: 11: Hoare triple {4943#true} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {4943#true} is VALID [2020-07-28 18:09:50,922 INFO L280 TraceCheckUtils]: 12: Hoare triple {4943#true} assume !!(sll_create_#t~post2 > 0);havoc sll_create_#t~post2;call sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset := #Ultimate.allocOnHeap(4);sll_create_~new_head~0.base, sll_create_~new_head~0.offset := sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset; {4943#true} is VALID [2020-07-28 18:09:50,922 INFO L280 TraceCheckUtils]: 13: Hoare triple {4943#true} assume !(0 == sll_create_~new_head~0.base && 0 == sll_create_~new_head~0.offset); {4943#true} is VALID [2020-07-28 18:09:50,923 INFO L280 TraceCheckUtils]: 14: Hoare triple {4943#true} call write~$Pointer$(sll_create_~head~0.base, sll_create_~head~0.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, 4);sll_create_~head~0.base, sll_create_~head~0.offset := sll_create_~new_head~0.base, sll_create_~new_head~0.offset; {4943#true} is VALID [2020-07-28 18:09:50,923 INFO L280 TraceCheckUtils]: 15: Hoare triple {4943#true} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {4943#true} is VALID [2020-07-28 18:09:50,923 INFO L280 TraceCheckUtils]: 16: Hoare triple {4943#true} assume !(sll_create_#t~post2 > 0);havoc sll_create_#t~post2; {4943#true} is VALID [2020-07-28 18:09:50,923 INFO L280 TraceCheckUtils]: 17: Hoare triple {4943#true} sll_create_#res.base, sll_create_#res.offset := sll_create_~head~0.base, sll_create_~head~0.offset; {4943#true} is VALID [2020-07-28 18:09:50,924 INFO L280 TraceCheckUtils]: 18: Hoare triple {4943#true} main_#t~ret15.base, main_#t~ret15.offset := sll_create_#res.base, sll_create_#res.offset;call write~init~$Pointer$(main_#t~ret15.base, main_#t~ret15.offset, main_~#s~0.base, main_~#s~0.offset, 4);havoc main_#t~ret15.base, main_#t~ret15.offset;_get_nondet_int_#in~from, _get_nondet_int_#in~until := 0, main_~len~2 - 1;havoc _get_nondet_int_#res;havoc _get_nondet_int_#t~post13, _get_nondet_int_#t~nondet11, _get_nondet_int_#t~short12, _get_nondet_int_~from, _get_nondet_int_~until, _get_nondet_int_~len~1;_get_nondet_int_~from := _get_nondet_int_#in~from;_get_nondet_int_~until := _get_nondet_int_#in~until;_get_nondet_int_~len~1 := _get_nondet_int_~from; {4945#(= 0 ULTIMATE.start__get_nondet_int_~len~1)} is VALID [2020-07-28 18:09:50,925 INFO L280 TraceCheckUtils]: 19: Hoare triple {4945#(= 0 ULTIMATE.start__get_nondet_int_~len~1)} _get_nondet_int_#t~short12 := _get_nondet_int_~len~1 < _get_nondet_int_~until; {4945#(= 0 ULTIMATE.start__get_nondet_int_~len~1)} is VALID [2020-07-28 18:09:50,925 INFO L280 TraceCheckUtils]: 20: Hoare triple {4945#(= 0 ULTIMATE.start__get_nondet_int_~len~1)} assume _get_nondet_int_#t~short12;assume -2147483648 <= _get_nondet_int_#t~nondet11 && _get_nondet_int_#t~nondet11 <= 2147483647;_get_nondet_int_#t~short12 := 0 != _get_nondet_int_#t~nondet11; {4945#(= 0 ULTIMATE.start__get_nondet_int_~len~1)} is VALID [2020-07-28 18:09:50,926 INFO L280 TraceCheckUtils]: 21: Hoare triple {4945#(= 0 ULTIMATE.start__get_nondet_int_~len~1)} assume !!_get_nondet_int_#t~short12;havoc _get_nondet_int_#t~nondet11;havoc _get_nondet_int_#t~short12;_get_nondet_int_#t~post13 := _get_nondet_int_~len~1;_get_nondet_int_~len~1 := 1 + _get_nondet_int_#t~post13;havoc _get_nondet_int_#t~post13; {4946#(<= 1 ULTIMATE.start__get_nondet_int_~len~1)} is VALID [2020-07-28 18:09:50,926 INFO L280 TraceCheckUtils]: 22: Hoare triple {4946#(<= 1 ULTIMATE.start__get_nondet_int_~len~1)} _get_nondet_int_#t~short12 := _get_nondet_int_~len~1 < _get_nondet_int_~until; {4946#(<= 1 ULTIMATE.start__get_nondet_int_~len~1)} is VALID [2020-07-28 18:09:50,928 INFO L280 TraceCheckUtils]: 23: Hoare triple {4946#(<= 1 ULTIMATE.start__get_nondet_int_~len~1)} assume !_get_nondet_int_#t~short12; {4946#(<= 1 ULTIMATE.start__get_nondet_int_~len~1)} is VALID [2020-07-28 18:09:50,929 INFO L280 TraceCheckUtils]: 24: Hoare triple {4946#(<= 1 ULTIMATE.start__get_nondet_int_~len~1)} assume !_get_nondet_int_#t~short12;havoc _get_nondet_int_#t~nondet11;havoc _get_nondet_int_#t~short12; {4946#(<= 1 ULTIMATE.start__get_nondet_int_~len~1)} is VALID [2020-07-28 18:09:50,929 INFO L280 TraceCheckUtils]: 25: Hoare triple {4946#(<= 1 ULTIMATE.start__get_nondet_int_~len~1)} _get_nondet_int_#res := _get_nondet_int_~len~1; {4947#(<= 1 |ULTIMATE.start__get_nondet_int_#res|)} is VALID [2020-07-28 18:09:50,930 INFO L280 TraceCheckUtils]: 26: Hoare triple {4947#(<= 1 |ULTIMATE.start__get_nondet_int_#res|)} main_#t~ret16 := _get_nondet_int_#res;assume -2147483648 <= main_#t~ret16 && main_#t~ret16 <= 2147483647;main_~k~0 := main_#t~ret16;havoc main_#t~ret16;main_~i~0 := 0; {4948#(and (= 0 ULTIMATE.start_main_~i~0) (<= 1 ULTIMATE.start_main_~k~0))} is VALID [2020-07-28 18:09:50,931 INFO L280 TraceCheckUtils]: 27: Hoare triple {4948#(and (= 0 ULTIMATE.start_main_~i~0) (<= 1 ULTIMATE.start_main_~k~0))} main_#t~short18 := main_~i~0 < main_~k~0; {4949#|ULTIMATE.start_main_#t~short18|} is VALID [2020-07-28 18:09:50,931 INFO L280 TraceCheckUtils]: 28: Hoare triple {4949#|ULTIMATE.start_main_#t~short18|} assume !main_#t~short18; {4944#false} is VALID [2020-07-28 18:09:50,931 INFO L280 TraceCheckUtils]: 29: Hoare triple {4944#false} assume !main_#t~short18;havoc main_#t~nondet17;havoc main_#t~short18; {4944#false} is VALID [2020-07-28 18:09:50,932 INFO L280 TraceCheckUtils]: 30: Hoare triple {4944#false} call main_#t~mem21.base, main_#t~mem21.offset := read~$Pointer$(main_~#s~0.base, main_~#s~0.offset, 4);sll_length_#in~head.base, sll_length_#in~head.offset := main_#t~mem21.base, main_#t~mem21.offset;havoc sll_length_#res;havoc sll_length_#t~post4, sll_length_#t~mem5.base, sll_length_#t~mem5.offset, sll_length_~head.base, sll_length_~head.offset, sll_length_~len~0;sll_length_~head.base, sll_length_~head.offset := sll_length_#in~head.base, sll_length_#in~head.offset;sll_length_~len~0 := 0; {4944#false} is VALID [2020-07-28 18:09:50,932 INFO L280 TraceCheckUtils]: 31: Hoare triple {4944#false} assume !!(sll_length_~head.base != 0 || sll_length_~head.offset != 0);sll_length_#t~post4 := sll_length_~len~0;sll_length_~len~0 := 1 + sll_length_#t~post4;havoc sll_length_#t~post4;call sll_length_#t~mem5.base, sll_length_#t~mem5.offset := read~$Pointer$(sll_length_~head.base, sll_length_~head.offset, 4);sll_length_~head.base, sll_length_~head.offset := sll_length_#t~mem5.base, sll_length_#t~mem5.offset;havoc sll_length_#t~mem5.base, sll_length_#t~mem5.offset; {4944#false} is VALID [2020-07-28 18:09:50,932 INFO L280 TraceCheckUtils]: 32: Hoare triple {4944#false} assume !!(sll_length_~head.base != 0 || sll_length_~head.offset != 0);sll_length_#t~post4 := sll_length_~len~0;sll_length_~len~0 := 1 + sll_length_#t~post4;havoc sll_length_#t~post4;call sll_length_#t~mem5.base, sll_length_#t~mem5.offset := read~$Pointer$(sll_length_~head.base, sll_length_~head.offset, 4);sll_length_~head.base, sll_length_~head.offset := sll_length_#t~mem5.base, sll_length_#t~mem5.offset;havoc sll_length_#t~mem5.base, sll_length_#t~mem5.offset; {4944#false} is VALID [2020-07-28 18:09:50,933 INFO L280 TraceCheckUtils]: 33: Hoare triple {4944#false} assume !(sll_length_~head.base != 0 || sll_length_~head.offset != 0); {4944#false} is VALID [2020-07-28 18:09:50,933 INFO L280 TraceCheckUtils]: 34: Hoare triple {4944#false} sll_length_#res := sll_length_~len~0; {4944#false} is VALID [2020-07-28 18:09:50,933 INFO L280 TraceCheckUtils]: 35: Hoare triple {4944#false} main_#t~ret22 := sll_length_#res;assume -2147483648 <= main_#t~ret22 && main_#t~ret22 <= 2147483647; {4944#false} is VALID [2020-07-28 18:09:50,934 INFO L280 TraceCheckUtils]: 36: Hoare triple {4944#false} assume main_~k~0 + main_~len~2 != main_#t~ret22;havoc main_#t~mem21.base, main_#t~mem21.offset;havoc main_#t~ret22; {4944#false} is VALID [2020-07-28 18:09:50,934 INFO L280 TraceCheckUtils]: 37: Hoare triple {4944#false} assume !false; {4944#false} is VALID [2020-07-28 18:09:50,935 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-28 18:09:50,936 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105143940] [2020-07-28 18:09:50,936 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858691329] [2020-07-28 18:09:50,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-28 18:09:51,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:09:51,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-28 18:09:51,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:09:51,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 18:09:51,217 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 18:09:51,237 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 18:09:51,256 INFO L280 TraceCheckUtils]: 0: Hoare triple {4943#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {4943#true} is VALID [2020-07-28 18:09:51,256 INFO L280 TraceCheckUtils]: 1: Hoare triple {4943#true} havoc main_#res;havoc main_#t~ret14, main_#t~ret15.base, main_#t~ret15.offset, main_#t~ret16, main_#t~ret19, main_#t~post20, main_~position~0, main_#t~nondet17, main_#t~short18, main_#t~mem21.base, main_#t~mem21.offset, main_#t~ret22, main_#t~mem23.base, main_#t~mem23.offset, main_~len~2, main_~#s~0.base, main_~#s~0.offset, main_~k~0, main_~i~0;_get_nondet_int_#in~from, _get_nondet_int_#in~until := 2, 5;havoc _get_nondet_int_#res;havoc _get_nondet_int_#t~post13, _get_nondet_int_#t~nondet11, _get_nondet_int_#t~short12, _get_nondet_int_~from, _get_nondet_int_~until, _get_nondet_int_~len~1;_get_nondet_int_~from := _get_nondet_int_#in~from;_get_nondet_int_~until := _get_nondet_int_#in~until;_get_nondet_int_~len~1 := _get_nondet_int_~from; {4943#true} is VALID [2020-07-28 18:09:51,256 INFO L280 TraceCheckUtils]: 2: Hoare triple {4943#true} _get_nondet_int_#t~short12 := _get_nondet_int_~len~1 < _get_nondet_int_~until; {4943#true} is VALID [2020-07-28 18:09:51,256 INFO L280 TraceCheckUtils]: 3: Hoare triple {4943#true} assume _get_nondet_int_#t~short12;assume -2147483648 <= _get_nondet_int_#t~nondet11 && _get_nondet_int_#t~nondet11 <= 2147483647;_get_nondet_int_#t~short12 := 0 != _get_nondet_int_#t~nondet11; {4943#true} is VALID [2020-07-28 18:09:51,257 INFO L280 TraceCheckUtils]: 4: Hoare triple {4943#true} assume !_get_nondet_int_#t~short12;havoc _get_nondet_int_#t~nondet11;havoc _get_nondet_int_#t~short12; {4943#true} is VALID [2020-07-28 18:09:51,257 INFO L280 TraceCheckUtils]: 5: Hoare triple {4943#true} _get_nondet_int_#res := _get_nondet_int_~len~1; {4943#true} is VALID [2020-07-28 18:09:51,257 INFO L280 TraceCheckUtils]: 6: Hoare triple {4943#true} main_#t~ret14 := _get_nondet_int_#res;assume -2147483648 <= main_#t~ret14 && main_#t~ret14 <= 2147483647;main_~len~2 := main_#t~ret14;havoc main_#t~ret14;call main_~#s~0.base, main_~#s~0.offset := #Ultimate.allocOnStack(4);sll_create_#in~len := main_~len~2;havoc sll_create_#res.base, sll_create_#res.offset;havoc sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, sll_create_#t~post2, sll_create_~len, sll_create_~head~0.base, sll_create_~head~0.offset;sll_create_~len := sll_create_#in~len;sll_create_~head~0.base, sll_create_~head~0.offset := 0, 0; {4943#true} is VALID [2020-07-28 18:09:51,257 INFO L280 TraceCheckUtils]: 7: Hoare triple {4943#true} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {4943#true} is VALID [2020-07-28 18:09:51,257 INFO L280 TraceCheckUtils]: 8: Hoare triple {4943#true} assume !!(sll_create_#t~post2 > 0);havoc sll_create_#t~post2;call sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset := #Ultimate.allocOnHeap(4);sll_create_~new_head~0.base, sll_create_~new_head~0.offset := sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset; {4943#true} is VALID [2020-07-28 18:09:51,257 INFO L280 TraceCheckUtils]: 9: Hoare triple {4943#true} assume !(0 == sll_create_~new_head~0.base && 0 == sll_create_~new_head~0.offset); {4943#true} is VALID [2020-07-28 18:09:51,257 INFO L280 TraceCheckUtils]: 10: Hoare triple {4943#true} call write~$Pointer$(sll_create_~head~0.base, sll_create_~head~0.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, 4);sll_create_~head~0.base, sll_create_~head~0.offset := sll_create_~new_head~0.base, sll_create_~new_head~0.offset; {4943#true} is VALID [2020-07-28 18:09:51,258 INFO L280 TraceCheckUtils]: 11: Hoare triple {4943#true} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {4943#true} is VALID [2020-07-28 18:09:51,258 INFO L280 TraceCheckUtils]: 12: Hoare triple {4943#true} assume !!(sll_create_#t~post2 > 0);havoc sll_create_#t~post2;call sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset := #Ultimate.allocOnHeap(4);sll_create_~new_head~0.base, sll_create_~new_head~0.offset := sll_create_#t~malloc3.base, sll_create_#t~malloc3.offset; {4943#true} is VALID [2020-07-28 18:09:51,258 INFO L280 TraceCheckUtils]: 13: Hoare triple {4943#true} assume !(0 == sll_create_~new_head~0.base && 0 == sll_create_~new_head~0.offset); {4943#true} is VALID [2020-07-28 18:09:51,258 INFO L280 TraceCheckUtils]: 14: Hoare triple {4943#true} call write~$Pointer$(sll_create_~head~0.base, sll_create_~head~0.offset, sll_create_~new_head~0.base, sll_create_~new_head~0.offset, 4);sll_create_~head~0.base, sll_create_~head~0.offset := sll_create_~new_head~0.base, sll_create_~new_head~0.offset; {4943#true} is VALID [2020-07-28 18:09:51,258 INFO L280 TraceCheckUtils]: 15: Hoare triple {4943#true} sll_create_#t~post2 := sll_create_~len;sll_create_~len := sll_create_#t~post2 - 1; {4943#true} is VALID [2020-07-28 18:09:51,258 INFO L280 TraceCheckUtils]: 16: Hoare triple {4943#true} assume !(sll_create_#t~post2 > 0);havoc sll_create_#t~post2; {4943#true} is VALID [2020-07-28 18:09:51,259 INFO L280 TraceCheckUtils]: 17: Hoare triple {4943#true} sll_create_#res.base, sll_create_#res.offset := sll_create_~head~0.base, sll_create_~head~0.offset; {4943#true} is VALID [2020-07-28 18:09:51,259 INFO L280 TraceCheckUtils]: 18: Hoare triple {4943#true} main_#t~ret15.base, main_#t~ret15.offset := sll_create_#res.base, sll_create_#res.offset;call write~init~$Pointer$(main_#t~ret15.base, main_#t~ret15.offset, main_~#s~0.base, main_~#s~0.offset, 4);havoc main_#t~ret15.base, main_#t~ret15.offset;_get_nondet_int_#in~from, _get_nondet_int_#in~until := 0, main_~len~2 - 1;havoc _get_nondet_int_#res;havoc _get_nondet_int_#t~post13, _get_nondet_int_#t~nondet11, _get_nondet_int_#t~short12, _get_nondet_int_~from, _get_nondet_int_~until, _get_nondet_int_~len~1;_get_nondet_int_~from := _get_nondet_int_#in~from;_get_nondet_int_~until := _get_nondet_int_#in~until;_get_nondet_int_~len~1 := _get_nondet_int_~from; {5007#(<= 0 ULTIMATE.start__get_nondet_int_~len~1)} is VALID [2020-07-28 18:09:51,260 INFO L280 TraceCheckUtils]: 19: Hoare triple {5007#(<= 0 ULTIMATE.start__get_nondet_int_~len~1)} _get_nondet_int_#t~short12 := _get_nondet_int_~len~1 < _get_nondet_int_~until; {5007#(<= 0 ULTIMATE.start__get_nondet_int_~len~1)} is VALID [2020-07-28 18:09:51,260 INFO L280 TraceCheckUtils]: 20: Hoare triple {5007#(<= 0 ULTIMATE.start__get_nondet_int_~len~1)} assume _get_nondet_int_#t~short12;assume -2147483648 <= _get_nondet_int_#t~nondet11 && _get_nondet_int_#t~nondet11 <= 2147483647;_get_nondet_int_#t~short12 := 0 != _get_nondet_int_#t~nondet11; {5007#(<= 0 ULTIMATE.start__get_nondet_int_~len~1)} is VALID [2020-07-28 18:09:51,261 INFO L280 TraceCheckUtils]: 21: Hoare triple {5007#(<= 0 ULTIMATE.start__get_nondet_int_~len~1)} assume !!_get_nondet_int_#t~short12;havoc _get_nondet_int_#t~nondet11;havoc _get_nondet_int_#t~short12;_get_nondet_int_#t~post13 := _get_nondet_int_~len~1;_get_nondet_int_~len~1 := 1 + _get_nondet_int_#t~post13;havoc _get_nondet_int_#t~post13; {4946#(<= 1 ULTIMATE.start__get_nondet_int_~len~1)} is VALID [2020-07-28 18:09:51,261 INFO L280 TraceCheckUtils]: 22: Hoare triple {4946#(<= 1 ULTIMATE.start__get_nondet_int_~len~1)} _get_nondet_int_#t~short12 := _get_nondet_int_~len~1 < _get_nondet_int_~until; {4946#(<= 1 ULTIMATE.start__get_nondet_int_~len~1)} is VALID [2020-07-28 18:09:51,262 INFO L280 TraceCheckUtils]: 23: Hoare triple {4946#(<= 1 ULTIMATE.start__get_nondet_int_~len~1)} assume !_get_nondet_int_#t~short12; {4946#(<= 1 ULTIMATE.start__get_nondet_int_~len~1)} is VALID [2020-07-28 18:09:51,262 INFO L280 TraceCheckUtils]: 24: Hoare triple {4946#(<= 1 ULTIMATE.start__get_nondet_int_~len~1)} assume !_get_nondet_int_#t~short12;havoc _get_nondet_int_#t~nondet11;havoc _get_nondet_int_#t~short12; {4946#(<= 1 ULTIMATE.start__get_nondet_int_~len~1)} is VALID [2020-07-28 18:09:51,262 INFO L280 TraceCheckUtils]: 25: Hoare triple {4946#(<= 1 ULTIMATE.start__get_nondet_int_~len~1)} _get_nondet_int_#res := _get_nondet_int_~len~1; {4947#(<= 1 |ULTIMATE.start__get_nondet_int_#res|)} is VALID [2020-07-28 18:09:51,263 INFO L280 TraceCheckUtils]: 26: Hoare triple {4947#(<= 1 |ULTIMATE.start__get_nondet_int_#res|)} main_#t~ret16 := _get_nondet_int_#res;assume -2147483648 <= main_#t~ret16 && main_#t~ret16 <= 2147483647;main_~k~0 := main_#t~ret16;havoc main_#t~ret16;main_~i~0 := 0; {5032#(and (<= ULTIMATE.start_main_~i~0 0) (<= 1 ULTIMATE.start_main_~k~0))} is VALID [2020-07-28 18:09:51,264 INFO L280 TraceCheckUtils]: 27: Hoare triple {5032#(and (<= ULTIMATE.start_main_~i~0 0) (<= 1 ULTIMATE.start_main_~k~0))} main_#t~short18 := main_~i~0 < main_~k~0; {4949#|ULTIMATE.start_main_#t~short18|} is VALID [2020-07-28 18:09:51,264 INFO L280 TraceCheckUtils]: 28: Hoare triple {4949#|ULTIMATE.start_main_#t~short18|} assume !main_#t~short18; {4944#false} is VALID [2020-07-28 18:09:51,264 INFO L280 TraceCheckUtils]: 29: Hoare triple {4944#false} assume !main_#t~short18;havoc main_#t~nondet17;havoc main_#t~short18; {4944#false} is VALID [2020-07-28 18:09:51,264 INFO L280 TraceCheckUtils]: 30: Hoare triple {4944#false} call main_#t~mem21.base, main_#t~mem21.offset := read~$Pointer$(main_~#s~0.base, main_~#s~0.offset, 4);sll_length_#in~head.base, sll_length_#in~head.offset := main_#t~mem21.base, main_#t~mem21.offset;havoc sll_length_#res;havoc sll_length_#t~post4, sll_length_#t~mem5.base, sll_length_#t~mem5.offset, sll_length_~head.base, sll_length_~head.offset, sll_length_~len~0;sll_length_~head.base, sll_length_~head.offset := sll_length_#in~head.base, sll_length_#in~head.offset;sll_length_~len~0 := 0; {4944#false} is VALID [2020-07-28 18:09:51,265 INFO L280 TraceCheckUtils]: 31: Hoare triple {4944#false} assume !!(sll_length_~head.base != 0 || sll_length_~head.offset != 0);sll_length_#t~post4 := sll_length_~len~0;sll_length_~len~0 := 1 + sll_length_#t~post4;havoc sll_length_#t~post4;call sll_length_#t~mem5.base, sll_length_#t~mem5.offset := read~$Pointer$(sll_length_~head.base, sll_length_~head.offset, 4);sll_length_~head.base, sll_length_~head.offset := sll_length_#t~mem5.base, sll_length_#t~mem5.offset;havoc sll_length_#t~mem5.base, sll_length_#t~mem5.offset; {4944#false} is VALID [2020-07-28 18:09:51,265 INFO L280 TraceCheckUtils]: 32: Hoare triple {4944#false} assume !!(sll_length_~head.base != 0 || sll_length_~head.offset != 0);sll_length_#t~post4 := sll_length_~len~0;sll_length_~len~0 := 1 + sll_length_#t~post4;havoc sll_length_#t~post4;call sll_length_#t~mem5.base, sll_length_#t~mem5.offset := read~$Pointer$(sll_length_~head.base, sll_length_~head.offset, 4);sll_length_~head.base, sll_length_~head.offset := sll_length_#t~mem5.base, sll_length_#t~mem5.offset;havoc sll_length_#t~mem5.base, sll_length_#t~mem5.offset; {4944#false} is VALID [2020-07-28 18:09:51,265 INFO L280 TraceCheckUtils]: 33: Hoare triple {4944#false} assume !(sll_length_~head.base != 0 || sll_length_~head.offset != 0); {4944#false} is VALID [2020-07-28 18:09:51,265 INFO L280 TraceCheckUtils]: 34: Hoare triple {4944#false} sll_length_#res := sll_length_~len~0; {4944#false} is VALID [2020-07-28 18:09:51,265 INFO L280 TraceCheckUtils]: 35: Hoare triple {4944#false} main_#t~ret22 := sll_length_#res;assume -2147483648 <= main_#t~ret22 && main_#t~ret22 <= 2147483647; {4944#false} is VALID [2020-07-28 18:09:51,265 INFO L280 TraceCheckUtils]: 36: Hoare triple {4944#false} assume main_~k~0 + main_~len~2 != main_#t~ret22;havoc main_#t~mem21.base, main_#t~mem21.offset;havoc main_#t~ret22; {4944#false} is VALID [2020-07-28 18:09:51,265 INFO L280 TraceCheckUtils]: 37: Hoare triple {4944#false} assume !false; {4944#false} is VALID [2020-07-28 18:09:51,266 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-28 18:09:51,267 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-28 18:09:51,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2020-07-28 18:09:51,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008182993] [2020-07-28 18:09:51,267 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2020-07-28 18:09:51,268 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:09:51,268 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-28 18:09:51,304 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:09:51,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-28 18:09:51,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:09:51,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-28 18:09:51,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-07-28 18:09:51,306 INFO L87 Difference]: Start difference. First operand 141 states and 178 transitions. Second operand 7 states. [2020-07-28 18:09:52,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:09:52,826 INFO L93 Difference]: Finished difference Result 273 states and 348 transitions. [2020-07-28 18:09:52,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-28 18:09:52,827 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2020-07-28 18:09:52,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:09:52,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-28 18:09:52,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 158 transitions. [2020-07-28 18:09:52,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-28 18:09:52,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 158 transitions. [2020-07-28 18:09:52,833 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 158 transitions. [2020-07-28 18:09:53,059 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 158 edges. 158 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:09:53,065 INFO L225 Difference]: With dead ends: 273 [2020-07-28 18:09:53,065 INFO L226 Difference]: Without dead ends: 241 [2020-07-28 18:09:53,066 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-07-28 18:09:53,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2020-07-28 18:09:53,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 157. [2020-07-28 18:09:53,569 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:09:53,569 INFO L82 GeneralOperation]: Start isEquivalent. First operand 241 states. Second operand 157 states. [2020-07-28 18:09:53,569 INFO L74 IsIncluded]: Start isIncluded. First operand 241 states. Second operand 157 states. [2020-07-28 18:09:53,570 INFO L87 Difference]: Start difference. First operand 241 states. Second operand 157 states. [2020-07-28 18:09:53,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:09:53,579 INFO L93 Difference]: Finished difference Result 241 states and 306 transitions. [2020-07-28 18:09:53,579 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 306 transitions. [2020-07-28 18:09:53,580 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:09:53,580 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:09:53,580 INFO L74 IsIncluded]: Start isIncluded. First operand 157 states. Second operand 241 states. [2020-07-28 18:09:53,580 INFO L87 Difference]: Start difference. First operand 157 states. Second operand 241 states. [2020-07-28 18:09:53,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:09:53,588 INFO L93 Difference]: Finished difference Result 241 states and 306 transitions. [2020-07-28 18:09:53,588 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 306 transitions. [2020-07-28 18:09:53,589 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:09:53,589 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:09:53,589 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:09:53,589 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:09:53,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-07-28 18:09:53,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 198 transitions. [2020-07-28 18:09:53,594 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 198 transitions. Word has length 38 [2020-07-28 18:09:53,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:09:53,595 INFO L479 AbstractCegarLoop]: Abstraction has 157 states and 198 transitions. [2020-07-28 18:09:53,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-28 18:09:53,595 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 198 transitions. [2020-07-28 18:09:53,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-28 18:09:53,597 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:09:53,598 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:09:53,798 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-28 18:09:53,798 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:09:53,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:09:53,799 INFO L82 PathProgramCache]: Analyzing trace with hash -2055902770, now seen corresponding path program 1 times [2020-07-28 18:09:53,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:09:53,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131908003] [2020-07-28 18:09:53,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:09:53,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 18:09:53,823 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 18:09:53,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 18:09:53,842 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 18:09:53,870 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-28 18:09:53,871 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 18:09:53,871 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-28 18:09:53,937 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 18:09:53,937 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 18:09:53,937 WARN L170 areAnnotationChecker]: L610-5 has no Hoare annotation [2020-07-28 18:09:53,938 WARN L170 areAnnotationChecker]: L610-5 has no Hoare annotation [2020-07-28 18:09:53,938 WARN L170 areAnnotationChecker]: L610-6 has no Hoare annotation [2020-07-28 18:09:53,938 WARN L170 areAnnotationChecker]: L610-1 has no Hoare annotation [2020-07-28 18:09:53,938 WARN L170 areAnnotationChecker]: L610-1 has no Hoare annotation [2020-07-28 18:09:53,938 WARN L170 areAnnotationChecker]: L613 has no Hoare annotation [2020-07-28 18:09:53,938 WARN L170 areAnnotationChecker]: L610-3 has no Hoare annotation [2020-07-28 18:09:53,939 WARN L170 areAnnotationChecker]: L610-3 has no Hoare annotation [2020-07-28 18:09:53,939 WARN L170 areAnnotationChecker]: L565-3 has no Hoare annotation [2020-07-28 18:09:53,939 WARN L170 areAnnotationChecker]: L565-3 has no Hoare annotation [2020-07-28 18:09:53,939 WARN L170 areAnnotationChecker]: L565-4 has no Hoare annotation [2020-07-28 18:09:53,939 WARN L170 areAnnotationChecker]: L565-1 has no Hoare annotation [2020-07-28 18:09:53,939 WARN L170 areAnnotationChecker]: L565-1 has no Hoare annotation [2020-07-28 18:09:53,940 WARN L170 areAnnotationChecker]: L573 has no Hoare annotation [2020-07-28 18:09:53,940 WARN L170 areAnnotationChecker]: L567 has no Hoare annotation [2020-07-28 18:09:53,940 WARN L170 areAnnotationChecker]: L567 has no Hoare annotation [2020-07-28 18:09:53,940 WARN L170 areAnnotationChecker]: L610-12 has no Hoare annotation [2020-07-28 18:09:53,940 WARN L170 areAnnotationChecker]: L610-12 has no Hoare annotation [2020-07-28 18:09:53,940 WARN L170 areAnnotationChecker]: L561 has no Hoare annotation [2020-07-28 18:09:53,940 WARN L170 areAnnotationChecker]: L567-1 has no Hoare annotation [2020-07-28 18:09:53,941 WARN L170 areAnnotationChecker]: L610-13 has no Hoare annotation [2020-07-28 18:09:53,941 WARN L170 areAnnotationChecker]: L610-8 has no Hoare annotation [2020-07-28 18:09:53,941 WARN L170 areAnnotationChecker]: L610-8 has no Hoare annotation [2020-07-28 18:09:53,941 WARN L170 areAnnotationChecker]: L613-1 has no Hoare annotation [2020-07-28 18:09:53,941 WARN L170 areAnnotationChecker]: L610-10 has no Hoare annotation [2020-07-28 18:09:53,941 WARN L170 areAnnotationChecker]: L610-10 has no Hoare annotation [2020-07-28 18:09:53,942 WARN L170 areAnnotationChecker]: L620-5 has no Hoare annotation [2020-07-28 18:09:53,942 WARN L170 areAnnotationChecker]: L620-5 has no Hoare annotation [2020-07-28 18:09:53,942 WARN L170 areAnnotationChecker]: L620-6 has no Hoare annotation [2020-07-28 18:09:53,942 WARN L170 areAnnotationChecker]: L620-1 has no Hoare annotation [2020-07-28 18:09:53,942 WARN L170 areAnnotationChecker]: L620-1 has no Hoare annotation [2020-07-28 18:09:53,942 WARN L170 areAnnotationChecker]: L577-2 has no Hoare annotation [2020-07-28 18:09:53,943 WARN L170 areAnnotationChecker]: L577-2 has no Hoare annotation [2020-07-28 18:09:53,943 WARN L170 areAnnotationChecker]: L577-2 has no Hoare annotation [2020-07-28 18:09:53,943 WARN L170 areAnnotationChecker]: L620-3 has no Hoare annotation [2020-07-28 18:09:53,943 WARN L170 areAnnotationChecker]: L620-3 has no Hoare annotation [2020-07-28 18:09:53,943 WARN L170 areAnnotationChecker]: L577-3 has no Hoare annotation [2020-07-28 18:09:53,943 WARN L170 areAnnotationChecker]: L610-19 has no Hoare annotation [2020-07-28 18:09:53,944 WARN L170 areAnnotationChecker]: L610-19 has no Hoare annotation [2020-07-28 18:09:53,944 WARN L170 areAnnotationChecker]: L581 has no Hoare annotation [2020-07-28 18:09:53,944 WARN L170 areAnnotationChecker]: L610-20 has no Hoare annotation [2020-07-28 18:09:53,944 WARN L170 areAnnotationChecker]: L610-15 has no Hoare annotation [2020-07-28 18:09:53,944 WARN L170 areAnnotationChecker]: L610-15 has no Hoare annotation [2020-07-28 18:09:53,945 WARN L170 areAnnotationChecker]: L625 has no Hoare annotation [2020-07-28 18:09:53,945 WARN L170 areAnnotationChecker]: L625 has no Hoare annotation [2020-07-28 18:09:53,945 WARN L170 areAnnotationChecker]: L613-2 has no Hoare annotation [2020-07-28 18:09:53,945 WARN L170 areAnnotationChecker]: L610-17 has no Hoare annotation [2020-07-28 18:09:53,945 WARN L170 areAnnotationChecker]: L610-17 has no Hoare annotation [2020-07-28 18:09:53,945 WARN L170 areAnnotationChecker]: L626 has no Hoare annotation [2020-07-28 18:09:53,946 WARN L170 areAnnotationChecker]: L626 has no Hoare annotation [2020-07-28 18:09:53,946 WARN L170 areAnnotationChecker]: L584-2 has no Hoare annotation [2020-07-28 18:09:53,946 WARN L170 areAnnotationChecker]: L584-2 has no Hoare annotation [2020-07-28 18:09:53,946 WARN L170 areAnnotationChecker]: L584-2 has no Hoare annotation [2020-07-28 18:09:53,946 WARN L170 areAnnotationChecker]: L592 has no Hoare annotation [2020-07-28 18:09:53,947 WARN L170 areAnnotationChecker]: L592 has no Hoare annotation [2020-07-28 18:09:53,947 WARN L170 areAnnotationChecker]: L631 has no Hoare annotation [2020-07-28 18:09:53,947 WARN L170 areAnnotationChecker]: L583 has no Hoare annotation [2020-07-28 18:09:53,947 WARN L170 areAnnotationChecker]: L561-1 has no Hoare annotation [2020-07-28 18:09:53,947 WARN L170 areAnnotationChecker]: L592-1 has no Hoare annotation [2020-07-28 18:09:53,947 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 18:09:53,948 WARN L170 areAnnotationChecker]: L597-3 has no Hoare annotation [2020-07-28 18:09:53,948 WARN L170 areAnnotationChecker]: L597-3 has no Hoare annotation [2020-07-28 18:09:53,948 WARN L170 areAnnotationChecker]: L597-4 has no Hoare annotation [2020-07-28 18:09:53,948 WARN L170 areAnnotationChecker]: L597-1 has no Hoare annotation [2020-07-28 18:09:53,948 WARN L170 areAnnotationChecker]: L597-1 has no Hoare annotation [2020-07-28 18:09:53,948 WARN L170 areAnnotationChecker]: L602 has no Hoare annotation [2020-07-28 18:09:53,949 WARN L170 areAnnotationChecker]: L602 has no Hoare annotation [2020-07-28 18:09:53,949 WARN L170 areAnnotationChecker]: L590 has no Hoare annotation [2020-07-28 18:09:53,949 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 18:09:53,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 06:09:53 BoogieIcfgContainer [2020-07-28 18:09:53,952 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 18:09:53,953 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 18:09:53,953 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 18:09:53,953 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 18:09:53,954 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:09:29" (3/4) ... [2020-07-28 18:09:53,956 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-07-28 18:09:54,028 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 18:09:54,028 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 18:09:54,031 INFO L168 Benchmark]: Toolchain (without parser) took 26202.37 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 458.2 MB). Free memory was 960.2 MB in the beginning and 943.6 MB in the end (delta: 16.6 MB). Peak memory consumption was 474.8 MB. Max. memory is 11.5 GB. [2020-07-28 18:09:54,031 INFO L168 Benchmark]: CDTParser took 0.86 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 18:09:54,032 INFO L168 Benchmark]: CACSL2BoogieTranslator took 553.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -136.8 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2020-07-28 18:09:54,032 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2020-07-28 18:09:54,033 INFO L168 Benchmark]: Boogie Preprocessor took 42.45 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 18:09:54,033 INFO L168 Benchmark]: RCFGBuilder took 722.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 52.3 MB). Peak memory consumption was 52.3 MB. Max. memory is 11.5 GB. [2020-07-28 18:09:54,033 INFO L168 Benchmark]: TraceAbstraction took 24733.28 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 341.8 MB). Free memory was 1.0 GB in the beginning and 943.6 MB in the end (delta: 88.9 MB). Peak memory consumption was 430.7 MB. Max. memory is 11.5 GB. [2020-07-28 18:09:54,034 INFO L168 Benchmark]: Witness Printer took 76.04 ms. Allocated memory is still 1.5 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 18:09:54,036 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.86 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 553.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -136.8 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 67.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.45 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 722.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 52.3 MB). Peak memory consumption was 52.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 24733.28 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 341.8 MB). Free memory was 1.0 GB in the beginning and 943.6 MB in the end (delta: 88.9 MB). Peak memory consumption was 430.7 MB. Max. memory is 11.5 GB. * Witness Printer took 76.04 ms. Allocated memory is still 1.5 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 630]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L609] int len = from; [L610] len < until && __VERIFIER_nondet_int() [L610] len < until && __VERIFIER_nondet_int() [L610] COND FALSE !(len < until && __VERIFIER_nondet_int()) [L613] return len; [L616] const int len = _get_nondet_int(2, 5); [L617] SLL s = sll_create(len); [L564] SLL head = ((void *)0); [L565] EXPR len-- [L565] COND TRUE len-- > 0 [L566] SLL new_head = (SLL) malloc(sizeof(struct node)); [L567] COND FALSE !(((void *)0) == new_head) [L570] new_head->next = head [L571] head = new_head [L565] EXPR len-- [L565] COND TRUE len-- > 0 [L566] SLL new_head = (SLL) malloc(sizeof(struct node)); [L567] COND FALSE !(((void *)0) == new_head) [L570] new_head->next = head [L571] head = new_head [L565] EXPR len-- [L565] COND FALSE !(len-- > 0) [L573] return head; [L617] SLL s = sll_create(len); [L609] int len = from; [L610] len < until && __VERIFIER_nondet_int() [L610] len < until && __VERIFIER_nondet_int() [L610] COND TRUE len < until && __VERIFIER_nondet_int() [L611] len++ [L610] len < until && __VERIFIER_nondet_int() [L610] COND FALSE !(len < until && __VERIFIER_nondet_int()) [L613] return len; [L618] const int k = _get_nondet_int(0, len - 1); [L619] int i = 0; [L620] i < k && __VERIFIER_nondet_int() [L620] i < k && __VERIFIER_nondet_int() [L620] COND FALSE !(i < k && __VERIFIER_nondet_int()) [L625] EXPR \read(s) [L576] int len = 0; [L577] COND TRUE \read(head) [L578] len++ [L579] EXPR head->next [L579] head = head->next [L577] COND TRUE \read(head) [L578] len++ [L579] EXPR head->next [L579] head = head->next [L577] COND FALSE !(\read(head)) [L581] return len; [L625] COND TRUE k + len != sll_length(s) [L630] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 24.5s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 12.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 445 SDtfs, 1393 SDslu, 2279 SDs, 0 SdLazy, 1111 SolverSat, 136 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 336 GetRequests, 204 SyntacticMatches, 1 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=157occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 9 MinimizatonAttempts, 403 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 7.0s InterpolantComputationTime, 534 NumberOfCodeBlocks, 534 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 481 ConstructedInterpolants, 3 QuantifiedInterpolants, 123930 SizeOfPredicates, 73 NumberOfNonLiveVariables, 1019 ConjunctsInSsa, 164 ConjunctsInUnsatCore, 15 InterpolantComputations, 4 PerfectInterpolantSequences, 89/136 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...