./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops/bubble_sort-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loops/bubble_sort-2.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3904eabd3ac5671d8bfd7199410990878a421a86 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-9a8b2e8 [2020-10-20 00:53:31,513 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:53:31,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:53:31,539 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:53:31,540 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:53:31,541 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:53:31,542 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:53:31,544 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:53:31,545 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:53:31,546 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:53:31,547 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:53:31,548 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:53:31,549 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:53:31,550 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:53:31,551 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:53:31,554 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:53:31,555 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:53:31,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:53:31,562 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:53:31,564 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:53:31,573 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:53:31,578 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:53:31,579 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:53:31,580 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:53:31,583 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:53:31,587 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:53:31,587 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:53:31,588 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:53:31,590 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:53:31,591 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:53:31,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:53:31,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:53:31,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:53:31,596 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:53:31,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:53:31,601 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:53:31,602 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:53:31,606 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:53:31,606 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:53:31,607 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:53:31,608 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:53:31,609 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 00:53:31,649 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:53:31,649 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:53:31,651 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:53:31,651 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:53:31,652 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:53:31,652 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:53:31,652 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:53:31,652 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 00:53:31,653 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:53:31,653 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:53:31,654 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:53:31,654 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:53:31,654 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:53:31,655 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:53:31,655 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:53:31,655 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:53:31,655 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:53:31,656 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:53:31,657 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:53:31,657 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:53:31,657 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:53:31,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:53:31,658 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:53:31,658 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:53:31,658 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:53:31,658 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 00:53:31,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 00:53:31,659 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:53:31,659 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:53:31,659 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(reach_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 -> 3904eabd3ac5671d8bfd7199410990878a421a86 [2020-10-20 00:53:31,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:53:31,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:53:31,911 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:53:31,913 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:53:31,913 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:53:31,914 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/bubble_sort-2.i [2020-10-20 00:53:32,000 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/036672557/a6173ea47af14fdb92973d89fccad11d/FLAG5b23a3e7e [2020-10-20 00:53:32,455 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:53:32,456 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/bubble_sort-2.i [2020-10-20 00:53:32,475 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/036672557/a6173ea47af14fdb92973d89fccad11d/FLAG5b23a3e7e [2020-10-20 00:53:32,805 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/036672557/a6173ea47af14fdb92973d89fccad11d [2020-10-20 00:53:32,808 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:53:32,814 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:53:32,815 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:53:32,815 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:53:32,819 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:53:32,820 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:53:32" (1/1) ... [2020-10-20 00:53:32,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@490c2b07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:53:32, skipping insertion in model container [2020-10-20 00:53:32,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:53:32" (1/1) ... [2020-10-20 00:53:32,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:53:32,885 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:53:33,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:53:33,276 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:53:33,400 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:53:33,434 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:53:33,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:53:33 WrapperNode [2020-10-20 00:53:33,435 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:53:33,436 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:53:33,436 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:53:33,436 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:53:33,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:53:33" (1/1) ... [2020-10-20 00:53:33,462 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:53:33" (1/1) ... [2020-10-20 00:53:33,539 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:53:33,540 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:53:33,540 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:53:33,541 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:53:33,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:53:33" (1/1) ... [2020-10-20 00:53:33,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:53:33" (1/1) ... [2020-10-20 00:53:33,563 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:53:33" (1/1) ... [2020-10-20 00:53:33,564 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:53:33" (1/1) ... [2020-10-20 00:53:33,602 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:53:33" (1/1) ... [2020-10-20 00:53:33,621 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:53:33" (1/1) ... [2020-10-20 00:53:33,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:53:33" (1/1) ... [2020-10-20 00:53:33,639 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:53:33,640 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:53:33,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:53:33,640 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:53:33,647 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:53:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:53:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-20 00:53:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-20 00:53:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:53:33,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 00:53:33,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 00:53:33,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-20 00:53:33,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 00:53:33,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-20 00:53:33,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:53:33,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:53:33,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 00:53:35,184 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:53:35,185 INFO L298 CfgBuilder]: Removed 211 assume(true) statements. [2020-10-20 00:53:35,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:53:35 BoogieIcfgContainer [2020-10-20 00:53:35,188 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:53:35,189 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:53:35,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:53:35,193 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:53:35,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:53:32" (1/3) ... [2020-10-20 00:53:35,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@523a8f60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:53:35, skipping insertion in model container [2020-10-20 00:53:35,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:53:33" (2/3) ... [2020-10-20 00:53:35,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@523a8f60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:53:35, skipping insertion in model container [2020-10-20 00:53:35,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:53:35" (3/3) ... [2020-10-20 00:53:35,197 INFO L111 eAbstractionObserver]: Analyzing ICFG bubble_sort-2.i [2020-10-20 00:53:35,209 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:53:35,217 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 34 error locations. [2020-10-20 00:53:35,231 INFO L253 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2020-10-20 00:53:35,259 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:53:35,259 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:53:35,259 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:53:35,260 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:53:35,260 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:53:35,260 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:53:35,260 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:53:35,261 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:53:35,287 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states. [2020-10-20 00:53:35,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 00:53:35,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:53:35,313 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:53:35,314 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:53:35,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:53:35,321 INFO L82 PathProgramCache]: Analyzing trace with hash -149958222, now seen corresponding path program 1 times [2020-10-20 00:53:35,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:53:35,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970938440] [2020-10-20 00:53:35,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:53:35,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:53:35,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:53:35,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970938440] [2020-10-20 00:53:35,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:53:35,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 00:53:35,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376126760] [2020-10-20 00:53:35,489 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:53:35,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:53:35,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:53:35,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:53:35,506 INFO L87 Difference]: Start difference. First operand 315 states. Second operand 2 states. [2020-10-20 00:53:35,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:53:35,564 INFO L93 Difference]: Finished difference Result 594 states and 908 transitions. [2020-10-20 00:53:35,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:53:35,566 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-10-20 00:53:35,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:53:35,579 INFO L225 Difference]: With dead ends: 594 [2020-10-20 00:53:35,580 INFO L226 Difference]: Without dead ends: 272 [2020-10-20 00:53:35,585 INFO L677 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 [2020-10-20 00:53:35,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2020-10-20 00:53:35,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2020-10-20 00:53:35,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-10-20 00:53:35,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 277 transitions. [2020-10-20 00:53:35,644 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 277 transitions. Word has length 9 [2020-10-20 00:53:35,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:53:35,645 INFO L481 AbstractCegarLoop]: Abstraction has 272 states and 277 transitions. [2020-10-20 00:53:35,645 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:53:35,645 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 277 transitions. [2020-10-20 00:53:35,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-20 00:53:35,646 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:53:35,646 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:53:35,647 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 00:53:35,647 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:53:35,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:53:35,648 INFO L82 PathProgramCache]: Analyzing trace with hash 1487329562, now seen corresponding path program 1 times [2020-10-20 00:53:35,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:53:35,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989931300] [2020-10-20 00:53:35,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:53:35,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:53:35,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:53:35,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989931300] [2020-10-20 00:53:35,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:53:35,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 00:53:35,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990106714] [2020-10-20 00:53:35,856 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 00:53:35,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:53:35,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 00:53:35,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 00:53:35,858 INFO L87 Difference]: Start difference. First operand 272 states and 277 transitions. Second operand 4 states. [2020-10-20 00:53:36,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:53:36,112 INFO L93 Difference]: Finished difference Result 272 states and 277 transitions. [2020-10-20 00:53:36,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 00:53:36,113 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-20 00:53:36,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:53:36,116 INFO L225 Difference]: With dead ends: 272 [2020-10-20 00:53:36,119 INFO L226 Difference]: Without dead ends: 264 [2020-10-20 00:53:36,120 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 00:53:36,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-10-20 00:53:36,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2020-10-20 00:53:36,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-10-20 00:53:36,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 269 transitions. [2020-10-20 00:53:36,144 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 269 transitions. Word has length 16 [2020-10-20 00:53:36,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:53:36,145 INFO L481 AbstractCegarLoop]: Abstraction has 264 states and 269 transitions. [2020-10-20 00:53:36,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 00:53:36,145 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 269 transitions. [2020-10-20 00:53:36,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 00:53:36,146 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:53:36,146 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:53:36,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 00:53:36,147 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:53:36,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:53:36,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1482691769, now seen corresponding path program 1 times [2020-10-20 00:53:36,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:53:36,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732715492] [2020-10-20 00:53:36,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:53:36,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:53:36,505 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:53:36,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:53:36,699 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:53:36,775 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 00:53:36,776 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 00:53:36,776 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 00:53:36,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:53:36 BoogieIcfgContainer [2020-10-20 00:53:36,881 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:53:36,882 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:53:36,882 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:53:36,883 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:53:36,883 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:53:35" (3/4) ... [2020-10-20 00:53:36,887 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 00:53:37,006 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 00:53:37,006 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:53:37,008 INFO L168 Benchmark]: Toolchain (without parser) took 4198.13 ms. Allocated memory was 34.6 MB in the beginning and 76.0 MB in the end (delta: 41.4 MB). Free memory was 14.6 MB in the beginning and 30.5 MB in the end (delta: -15.9 MB). Peak memory consumption was 25.5 MB. Max. memory is 14.3 GB. [2020-10-20 00:53:37,009 INFO L168 Benchmark]: CDTParser took 0.75 ms. Allocated memory is still 33.0 MB. Free memory was 10.5 MB in the beginning and 10.4 MB in the end (delta: 44.0 kB). Peak memory consumption was 44.0 kB. Max. memory is 14.3 GB. [2020-10-20 00:53:37,009 INFO L168 Benchmark]: CACSL2BoogieTranslator took 620.64 ms. Allocated memory was 34.6 MB in the beginning and 44.6 MB in the end (delta: 10.0 MB). Free memory was 13.8 MB in the beginning and 25.5 MB in the end (delta: -11.7 MB). Peak memory consumption was 13.4 MB. Max. memory is 14.3 GB. [2020-10-20 00:53:37,010 INFO L168 Benchmark]: Boogie Procedure Inliner took 103.90 ms. Allocated memory is still 44.6 MB. Free memory was 25.5 MB in the beginning and 18.5 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:53:37,010 INFO L168 Benchmark]: Boogie Preprocessor took 99.57 ms. Allocated memory is still 44.6 MB. Free memory was 18.5 MB in the beginning and 11.8 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:53:37,011 INFO L168 Benchmark]: RCFGBuilder took 1547.82 ms. Allocated memory was 44.6 MB in the beginning and 57.7 MB in the end (delta: 13.1 MB). Free memory was 11.8 MB in the beginning and 17.7 MB in the end (delta: -5.9 MB). Peak memory consumption was 10.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:53:37,011 INFO L168 Benchmark]: TraceAbstraction took 1692.68 ms. Allocated memory was 57.7 MB in the beginning and 76.0 MB in the end (delta: 18.4 MB). Free memory was 16.8 MB in the beginning and 39.3 MB in the end (delta: -22.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 14.3 GB. [2020-10-20 00:53:37,011 INFO L168 Benchmark]: Witness Printer took 123.82 ms. Allocated memory is still 76.0 MB. Free memory was 39.3 MB in the beginning and 30.5 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 14.3 GB. [2020-10-20 00:53:37,014 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75 ms. Allocated memory is still 33.0 MB. Free memory was 10.5 MB in the beginning and 10.4 MB in the end (delta: 44.0 kB). Peak memory consumption was 44.0 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 620.64 ms. Allocated memory was 34.6 MB in the beginning and 44.6 MB in the end (delta: 10.0 MB). Free memory was 13.8 MB in the beginning and 25.5 MB in the end (delta: -11.7 MB). Peak memory consumption was 13.4 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 103.90 ms. Allocated memory is still 44.6 MB. Free memory was 25.5 MB in the beginning and 18.5 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 99.57 ms. Allocated memory is still 44.6 MB. Free memory was 18.5 MB in the beginning and 11.8 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1547.82 ms. Allocated memory was 44.6 MB in the beginning and 57.7 MB in the end (delta: 13.1 MB). Free memory was 11.8 MB in the beginning and 17.7 MB in the end (delta: -5.9 MB). Peak memory consumption was 10.7 MB. Max. memory is 14.3 GB. * TraceAbstraction took 1692.68 ms. Allocated memory was 57.7 MB in the beginning and 76.0 MB in the end (delta: 18.4 MB). Free memory was 16.8 MB in the beginning and 39.3 MB in the end (delta: -22.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 14.3 GB. * Witness Printer took 123.82 ms. Allocated memory is still 76.0 MB. Free memory was 39.3 MB in the beginning and 30.5 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 12]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L52] struct list_head gl_list = {& gl_list, & gl_list}; VAL [gl_list={4294967292:0}] [L835] struct list_head const *__cil_tmp1 ; [L836] struct list_head const *__cil_tmp2 ; [L676] int tmp ; [L677] int tmp___0 ; VAL [gl_list={4294967292:0}] [L680] COND TRUE 1 VAL [gl_list={4294967292:0}] [L683] tmp = __VERIFIER_nondet_int() [L622] struct node *node ; [L623] void *tmp ; [L624] unsigned int __cil_tmp4 ; [L625] unsigned int __cil_tmp5 ; [L626] unsigned int __cil_tmp6 ; [L627] struct list_head *__cil_tmp7 ; [L628] unsigned int __cil_tmp8 ; [L629] unsigned int __cil_tmp9 ; [L630] unsigned int __cil_tmp10 ; [L631] unsigned int __cil_tmp11 ; [L632] unsigned int __cil_tmp12 ; [L633] unsigned int __cil_tmp13 ; [L634] unsigned int __cil_tmp14 ; [L635] unsigned int __cil_tmp15 ; [L638] __cil_tmp4 = (unsigned int )20UL [L639] tmp = malloc(__cil_tmp4) [L640] node = (struct node *)tmp VAL [gl_list={4294967292:0}] [L642] COND FALSE !(! node) VAL [gl_list={4294967292:0}] [L649] *((int *)node) = value [L650] __cil_tmp5 = (unsigned int )node [L651] __cil_tmp6 = __cil_tmp5 + 4 [L652] __cil_tmp7 = (struct list_head *)__cil_tmp6 [L595] struct list_head *__cil_tmp3 ; [L598] EXPR \read(*head) [L598] __cil_tmp3 = *((struct list_head **)head) [L567] unsigned int __cil_tmp4 ; [L568] unsigned int __cil_tmp5 ; [L569] unsigned int __cil_tmp6 ; [L570] unsigned int __cil_tmp7 ; [L572] __cil_tmp4 = (unsigned int )next [L573] __cil_tmp5 = __cil_tmp4 + 4 [L574] *((struct list_head **)__cil_tmp5) = new [L575] *((struct list_head **)new) = next [L576] __cil_tmp6 = (unsigned int )new [L577] __cil_tmp7 = __cil_tmp6 + 4 [L578] *((struct list_head **)__cil_tmp7) = prev [L579] *((struct list_head **)prev) = new VAL [gl_list={4294967292:0}] [L656] COND TRUE 1 VAL [gl_list={4294967292:0}] [L658] __cil_tmp8 = (unsigned int )node [L659] __cil_tmp9 = __cil_tmp8 + 12 [L660] __cil_tmp10 = (unsigned int )node [L661] __cil_tmp11 = __cil_tmp10 + 12 [L662] *((struct list_head **)__cil_tmp9) = (struct list_head *)__cil_tmp11 [L663] __cil_tmp12 = (unsigned int )node [L664] __cil_tmp13 = __cil_tmp12 + 12 [L665] __cil_tmp14 = (unsigned int )node [L666] __cil_tmp15 = __cil_tmp14 + 12 [L667] *((struct list_head **)__cil_tmp13) = (struct list_head *)__cil_tmp15 VAL [gl_list={4294967292:0}] [L685] tmp___0 = __VERIFIER_nondet_int() [L687] COND FALSE !(\read(tmp___0)) VAL [gl_list={4294967292:0}] [L840] __cil_tmp1 = (struct list_head const *)(& gl_list) [L55] struct node const *node ; [L56] unsigned int __cil_tmp3 ; [L57] struct list_head *__cil_tmp4 ; [L58] unsigned int __cil_tmp5 ; [L59] int __cil_tmp6 ; [L60] unsigned int __cil_tmp7 ; [L61] unsigned int __cil_tmp8 ; [L62] unsigned int __cil_tmp9 ; [L63] struct list_head *__cil_tmp10 ; [L64] unsigned int __cil_tmp11 ; [L65] int __cil_tmp12 ; [L66] unsigned int __cil_tmp13 ; [L67] unsigned int __cil_tmp14 ; [L68] struct list_head *__cil_tmp15 ; [L69] unsigned int __cil_tmp16 ; [L70] struct list_head *__cil_tmp17 ; [L71] unsigned int __cil_tmp18 ; [L72] int __cil_tmp19 ; [L73] unsigned int __cil_tmp20 ; [L74] unsigned int __cil_tmp21 ; [L75] unsigned int __cil_tmp22 ; [L76] struct list_head *__cil_tmp23 ; [L77] unsigned int __cil_tmp24 ; [L78] int __cil_tmp25 ; [L79] struct node *__cil_tmp26 ; [L80] unsigned int __cil_tmp27 ; [L81] unsigned int __cil_tmp28 ; [L82] struct list_head *__cil_tmp29 ; [L83] unsigned long __cil_tmp30 ; [L84] char *__cil_tmp31 ; [L85] char *__cil_tmp32 ; [L86] struct node *__cil_tmp33 ; [L87] unsigned int __cil_tmp34 ; [L88] unsigned int __cil_tmp35 ; [L89] struct list_head const *__cil_tmp36 ; [L90] unsigned int __cil_tmp37 ; [L91] unsigned int __cil_tmp38 ; [L92] unsigned int __cil_tmp39 ; [L93] struct list_head *__cil_tmp40 ; [L94] unsigned int __cil_tmp41 ; [L95] int __cil_tmp42 ; [L96] unsigned int __cil_tmp43 ; [L97] unsigned int __cil_tmp44 ; [L98] struct list_head const *__cil_tmp45 ; [L99] unsigned int __cil_tmp46 ; [L100] unsigned int __cil_tmp47 ; [L101] unsigned int __cil_tmp48 ; [L102] unsigned int __cil_tmp49 ; [L103] struct list_head *__cil_tmp50 ; [L104] unsigned int __cil_tmp51 ; [L105] int __cil_tmp52 ; [L106] unsigned int __cil_tmp53 ; [L107] unsigned int __cil_tmp54 ; [L108] struct list_head const *__cil_tmp55 ; [L109] unsigned int __cil_tmp56 ; [L110] unsigned int __cil_tmp57 ; [L111] unsigned int __cil_tmp58 ; [L112] struct list_head *__cil_tmp59 ; [L113] unsigned int __cil_tmp60 ; [L114] int __cil_tmp61 ; [L115] unsigned int __cil_tmp62 ; [L116] unsigned int __cil_tmp63 ; [L117] struct list_head const *__cil_tmp64 ; [L118] unsigned int __cil_tmp65 ; [L119] unsigned int __cil_tmp66 ; [L120] unsigned int __cil_tmp67 ; [L121] unsigned int __cil_tmp68 ; [L122] struct list_head *__cil_tmp69 ; [L123] unsigned int __cil_tmp70 ; [L124] int __cil_tmp71 ; [L125] struct node const *__cil_tmp72 ; [L126] unsigned int __cil_tmp73 ; [L127] unsigned int __cil_tmp74 ; [L128] int __cil_tmp75 ; [L129] unsigned int __cil_tmp76 ; [L130] unsigned int __cil_tmp77 ; [L131] struct list_head const *__cil_tmp78 ; [L132] struct node const *__cil_tmp79 ; [L133] unsigned int __cil_tmp80 ; [L134] unsigned int __cil_tmp81 ; [L135] int __cil_tmp82 ; [L136] int const *__cil_tmp83 ; [L137] struct node const *__cil_tmp84 ; [L138] unsigned int __cil_tmp85 ; [L139] unsigned int __cil_tmp86 ; [L140] int __cil_tmp87 ; [L141] unsigned int __cil_tmp88 ; [L142] unsigned int __cil_tmp89 ; [L143] struct list_head *__cil_tmp90 ; [L144] unsigned int __cil_tmp91 ; [L145] unsigned int __cil_tmp92 ; [L146] struct list_head *__cil_tmp93 ; [L147] unsigned int __cil_tmp94 ; [L148] unsigned int __cil_tmp95 ; [L149] int __cil_tmp96 ; [L150] unsigned int __cil_tmp97 ; [L151] unsigned int __cil_tmp98 ; [L152] unsigned int __cil_tmp99 ; [L153] struct list_head *__cil_tmp100 ; [L154] struct list_head *__cil_tmp101 ; [L155] unsigned int __cil_tmp102 ; [L156] unsigned int __cil_tmp103 ; [L157] int __cil_tmp104 ; [L158] struct list_head *__cil_tmp105 ; [L159] unsigned int __cil_tmp106 ; [L160] unsigned int __cil_tmp107 ; [L161] unsigned int __cil_tmp108 ; [L162] struct list_head const *__cil_tmp109 ; [L163] unsigned int __cil_tmp110 ; [L164] struct list_head *__cil_tmp111 ; [L165] unsigned int __cil_tmp112 ; [L166] struct node *__cil_tmp113 ; [L167] unsigned int __cil_tmp114 ; [L168] unsigned int __cil_tmp115 ; [L169] struct list_head *__cil_tmp116 ; [L170] unsigned long __cil_tmp117 ; [L171] char *__cil_tmp118 ; [L172] char *__cil_tmp119 ; [L173] struct node *__cil_tmp120 ; [L174] unsigned int __cil_tmp121 ; [L175] int __cil_tmp122 ; VAL [gl_list={4294967292:0}] [L179] COND TRUE 1 VAL [gl_list={4294967292:0}] [L181] COND FALSE !(! head) VAL [gl_list={4294967292:0}] [L192] COND TRUE 1 VAL [gl_list={4294967292:0}] [L195] __cil_tmp3 = (unsigned int )head [L196] EXPR \read(*head) [L196] __cil_tmp4 = *((struct list_head * const *)head) [L197] __cil_tmp5 = (unsigned int )__cil_tmp4 [L198] __cil_tmp6 = __cil_tmp5 != __cil_tmp3 VAL [gl_list={4294967292:0}] [L199] COND TRUE ! __cil_tmp6 [L12] COND FALSE !(0) VAL [gl_list={4294967292:0}] [L12] __assert_fail ("0", "bubble_sort-2.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [gl_list={4294967292:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 315 locations, 34 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 543 SDtfs, 288 SDslu, 206 SDs, 0 SdLazy, 42 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=315occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 829 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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...