./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/heap-manipulation/merge_sort_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/heap-manipulation/merge_sort_false-unreach-call_false-valid-memcleanup.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 534681b11e8e68e6058985d885b01f2cbfa43e5b .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.24-2e94e6a [2018-12-31 04:07:50,424 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 04:07:50,426 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 04:07:50,445 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 04:07:50,446 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 04:07:50,448 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 04:07:50,452 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 04:07:50,454 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 04:07:50,457 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 04:07:50,460 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 04:07:50,461 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 04:07:50,461 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 04:07:50,462 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 04:07:50,463 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 04:07:50,464 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 04:07:50,465 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 04:07:50,466 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 04:07:50,467 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 04:07:50,469 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 04:07:50,471 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 04:07:50,472 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 04:07:50,473 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 04:07:50,476 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 04:07:50,476 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 04:07:50,476 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 04:07:50,477 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 04:07:50,478 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 04:07:50,479 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 04:07:50,480 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 04:07:50,481 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 04:07:50,481 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 04:07:50,482 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 04:07:50,482 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 04:07:50,482 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 04:07:50,483 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 04:07:50,484 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 04:07:50,485 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 04:07:50,500 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 04:07:50,500 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 04:07:50,501 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 04:07:50,502 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 04:07:50,502 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 04:07:50,502 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 04:07:50,502 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 04:07:50,502 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 04:07:50,503 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 04:07:50,503 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 04:07:50,503 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 04:07:50,503 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 04:07:50,503 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 04:07:50,503 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 04:07:50,504 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 04:07:50,504 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 04:07:50,504 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 04:07:50,504 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 04:07:50,504 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 04:07:50,504 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 04:07:50,505 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 04:07:50,505 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 04:07:50,505 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 04:07:50,505 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 04:07:50,505 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 04:07:50,506 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 04:07:50,506 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 04:07:50,506 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 04:07:50,507 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> 534681b11e8e68e6058985d885b01f2cbfa43e5b [2018-12-31 04:07:50,565 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 04:07:50,586 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 04:07:50,592 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 04:07:50,594 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 04:07:50,595 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 04:07:50,595 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/heap-manipulation/merge_sort_false-unreach-call_false-valid-memcleanup.i [2018-12-31 04:07:50,671 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0902d2a4/b7df2311f6854c18a80f0bb939178ef4/FLAG272f6d4cc [2018-12-31 04:07:51,242 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 04:07:51,243 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/heap-manipulation/merge_sort_false-unreach-call_false-valid-memcleanup.i [2018-12-31 04:07:51,257 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0902d2a4/b7df2311f6854c18a80f0bb939178ef4/FLAG272f6d4cc [2018-12-31 04:07:51,462 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0902d2a4/b7df2311f6854c18a80f0bb939178ef4 [2018-12-31 04:07:51,466 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 04:07:51,467 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 04:07:51,469 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 04:07:51,469 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 04:07:51,473 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 04:07:51,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 04:07:51" (1/1) ... [2018-12-31 04:07:51,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a863a5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:07:51, skipping insertion in model container [2018-12-31 04:07:51,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 04:07:51" (1/1) ... [2018-12-31 04:07:51,489 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 04:07:51,541 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 04:07:52,013 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 04:07:52,042 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 04:07:52,228 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 04:07:52,301 INFO L195 MainTranslator]: Completed translation [2018-12-31 04:07:52,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:07:52 WrapperNode [2018-12-31 04:07:52,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 04:07:52,303 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 04:07:52,304 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 04:07:52,304 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 04:07:52,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:07:52" (1/1) ... [2018-12-31 04:07:52,344 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:07:52" (1/1) ... [2018-12-31 04:07:52,390 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 04:07:52,390 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 04:07:52,390 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 04:07:52,390 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 04:07:52,402 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:07:52" (1/1) ... [2018-12-31 04:07:52,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:07:52" (1/1) ... [2018-12-31 04:07:52,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:07:52" (1/1) ... [2018-12-31 04:07:52,421 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:07:52" (1/1) ... [2018-12-31 04:07:52,439 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:07:52" (1/1) ... [2018-12-31 04:07:52,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:07:52" (1/1) ... [2018-12-31 04:07:52,453 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:07:52" (1/1) ... [2018-12-31 04:07:52,463 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 04:07:52,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 04:07:52,467 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 04:07:52,468 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 04:07:52,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:07:52" (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 [2018-12-31 04:07:52,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-31 04:07:52,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-31 04:07:52,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2018-12-31 04:07:52,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2018-12-31 04:07:52,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-31 04:07:52,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-31 04:07:52,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-31 04:07:52,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 04:07:52,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 04:07:53,723 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 04:07:53,723 INFO L280 CfgBuilder]: Removed 75 assue(true) statements. [2018-12-31 04:07:53,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 04:07:53 BoogieIcfgContainer [2018-12-31 04:07:53,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 04:07:53,726 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 04:07:53,726 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 04:07:53,731 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 04:07:53,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 04:07:51" (1/3) ... [2018-12-31 04:07:53,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50f790ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 04:07:53, skipping insertion in model container [2018-12-31 04:07:53,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:07:52" (2/3) ... [2018-12-31 04:07:53,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50f790ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 04:07:53, skipping insertion in model container [2018-12-31 04:07:53,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 04:07:53" (3/3) ... [2018-12-31 04:07:53,736 INFO L112 eAbstractionObserver]: Analyzing ICFG merge_sort_false-unreach-call_false-valid-memcleanup.i [2018-12-31 04:07:53,748 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 04:07:53,757 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2018-12-31 04:07:53,777 INFO L257 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2018-12-31 04:07:53,814 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 04:07:53,815 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 04:07:53,815 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 04:07:53,816 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 04:07:53,816 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 04:07:53,816 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 04:07:53,816 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 04:07:53,817 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 04:07:53,817 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 04:07:53,838 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states. [2018-12-31 04:07:53,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-31 04:07:53,845 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 04:07:53,846 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-12-31 04:07:53,849 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 04:07:53,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 04:07:53,856 INFO L82 PathProgramCache]: Analyzing trace with hash 890218827, now seen corresponding path program 1 times [2018-12-31 04:07:53,858 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 04:07:53,858 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 04:07:53,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:07:53,914 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 04:07:53,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:07:53,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 04:07:53,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 04:07:53,984 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 04:07:53,985 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 04:07:53,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-31 04:07:54,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-31 04:07:54,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 04:07:54,005 INFO L87 Difference]: Start difference. First operand 99 states. Second operand 2 states. [2018-12-31 04:07:54,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 04:07:54,034 INFO L93 Difference]: Finished difference Result 196 states and 316 transitions. [2018-12-31 04:07:54,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-31 04:07:54,036 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2018-12-31 04:07:54,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 04:07:54,048 INFO L225 Difference]: With dead ends: 196 [2018-12-31 04:07:54,048 INFO L226 Difference]: Without dead ends: 92 [2018-12-31 04:07:54,054 INFO L631 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 [2018-12-31 04:07:54,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2018-12-31 04:07:54,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2018-12-31 04:07:54,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-12-31 04:07:54,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 102 transitions. [2018-12-31 04:07:54,107 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 102 transitions. Word has length 6 [2018-12-31 04:07:54,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 04:07:54,107 INFO L480 AbstractCegarLoop]: Abstraction has 92 states and 102 transitions. [2018-12-31 04:07:54,107 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-31 04:07:54,108 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 102 transitions. [2018-12-31 04:07:54,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-31 04:07:54,108 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 04:07:54,108 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-31 04:07:54,112 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 04:07:54,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 04:07:54,113 INFO L82 PathProgramCache]: Analyzing trace with hash 1806865150, now seen corresponding path program 1 times [2018-12-31 04:07:54,113 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 04:07:54,113 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 04:07:54,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:07:54,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 04:07:54,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:07:54,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 04:07:54,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 04:07:54,274 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 04:07:54,274 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-31 04:07:54,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 04:07:54,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 04:07:54,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 04:07:54,279 INFO L87 Difference]: Start difference. First operand 92 states and 102 transitions. Second operand 3 states. [2018-12-31 04:07:54,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 04:07:54,426 INFO L93 Difference]: Finished difference Result 182 states and 202 transitions. [2018-12-31 04:07:54,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 04:07:54,429 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-31 04:07:54,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 04:07:54,431 INFO L225 Difference]: With dead ends: 182 [2018-12-31 04:07:54,433 INFO L226 Difference]: Without dead ends: 98 [2018-12-31 04:07:54,434 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 04:07:54,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-12-31 04:07:54,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 94. [2018-12-31 04:07:54,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2018-12-31 04:07:54,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 104 transitions. [2018-12-31 04:07:54,458 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 104 transitions. Word has length 7 [2018-12-31 04:07:54,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 04:07:54,459 INFO L480 AbstractCegarLoop]: Abstraction has 94 states and 104 transitions. [2018-12-31 04:07:54,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 04:07:54,459 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 104 transitions. [2018-12-31 04:07:54,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-31 04:07:54,460 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 04:07:54,461 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 04:07:54,462 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 04:07:54,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 04:07:54,462 INFO L82 PathProgramCache]: Analyzing trace with hash 663763925, now seen corresponding path program 1 times [2018-12-31 04:07:54,462 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 04:07:54,463 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 04:07:54,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:07:54,467 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 04:07:54,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:07:54,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 04:07:54,626 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 04:07:54,627 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 04:07:54,628 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-31 04:07:54,628 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-31 04:07:54,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-31 04:07:54,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-31 04:07:54,629 INFO L87 Difference]: Start difference. First operand 94 states and 104 transitions. Second operand 5 states. [2018-12-31 04:07:55,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 04:07:55,123 INFO L93 Difference]: Finished difference Result 253 states and 288 transitions. [2018-12-31 04:07:55,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-31 04:07:55,124 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-12-31 04:07:55,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 04:07:55,127 INFO L225 Difference]: With dead ends: 253 [2018-12-31 04:07:55,128 INFO L226 Difference]: Without dead ends: 247 [2018-12-31 04:07:55,129 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-12-31 04:07:55,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2018-12-31 04:07:55,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 96. [2018-12-31 04:07:55,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-12-31 04:07:55,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 107 transitions. [2018-12-31 04:07:55,144 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 107 transitions. Word has length 13 [2018-12-31 04:07:55,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 04:07:55,145 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 107 transitions. [2018-12-31 04:07:55,146 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-31 04:07:55,146 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 107 transitions. [2018-12-31 04:07:55,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-31 04:07:55,147 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 04:07:55,147 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 04:07:55,148 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 04:07:55,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 04:07:55,149 INFO L82 PathProgramCache]: Analyzing trace with hash 2036062252, now seen corresponding path program 1 times [2018-12-31 04:07:55,149 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 04:07:55,149 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 04:07:55,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:07:55,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 04:07:55,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:07:55,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 04:07:55,534 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-31 04:07:55,534 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 04:07:55,535 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-31 04:07:55,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-31 04:07:55,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-31 04:07:55,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-31 04:07:55,536 INFO L87 Difference]: Start difference. First operand 96 states and 107 transitions. Second operand 5 states. [2018-12-31 04:07:55,889 WARN L181 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-12-31 04:07:56,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 04:07:56,276 INFO L93 Difference]: Finished difference Result 125 states and 139 transitions. [2018-12-31 04:07:56,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-31 04:07:56,284 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-12-31 04:07:56,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 04:07:56,290 INFO L225 Difference]: With dead ends: 125 [2018-12-31 04:07:56,294 INFO L226 Difference]: Without dead ends: 123 [2018-12-31 04:07:56,295 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-31 04:07:56,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-12-31 04:07:56,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 94. [2018-12-31 04:07:56,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2018-12-31 04:07:56,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 105 transitions. [2018-12-31 04:07:56,316 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 105 transitions. Word has length 20 [2018-12-31 04:07:56,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 04:07:56,316 INFO L480 AbstractCegarLoop]: Abstraction has 94 states and 105 transitions. [2018-12-31 04:07:56,316 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-31 04:07:56,319 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 105 transitions. [2018-12-31 04:07:56,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-31 04:07:56,321 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 04:07:56,321 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 04:07:56,321 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 04:07:56,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 04:07:56,322 INFO L82 PathProgramCache]: Analyzing trace with hash 2014113239, now seen corresponding path program 1 times [2018-12-31 04:07:56,322 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 04:07:56,322 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 04:07:56,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:07:56,324 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 04:07:56,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:07:56,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 04:07:56,449 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-31 04:07:56,449 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 04:07:56,449 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-31 04:07:56,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-31 04:07:56,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-31 04:07:56,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-31 04:07:56,451 INFO L87 Difference]: Start difference. First operand 94 states and 105 transitions. Second operand 5 states. [2018-12-31 04:07:56,738 WARN L181 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2018-12-31 04:07:57,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 04:07:57,285 INFO L93 Difference]: Finished difference Result 94 states and 105 transitions. [2018-12-31 04:07:57,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-31 04:07:57,286 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-12-31 04:07:57,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 04:07:57,288 INFO L225 Difference]: With dead ends: 94 [2018-12-31 04:07:57,288 INFO L226 Difference]: Without dead ends: 92 [2018-12-31 04:07:57,289 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-31 04:07:57,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2018-12-31 04:07:57,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2018-12-31 04:07:57,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-12-31 04:07:57,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 103 transitions. [2018-12-31 04:07:57,302 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 103 transitions. Word has length 20 [2018-12-31 04:07:57,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 04:07:57,303 INFO L480 AbstractCegarLoop]: Abstraction has 92 states and 103 transitions. [2018-12-31 04:07:57,303 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-31 04:07:57,303 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 103 transitions. [2018-12-31 04:07:57,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-31 04:07:57,304 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 04:07:57,304 INFO L402 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] [2018-12-31 04:07:57,305 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 04:07:57,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 04:07:57,305 INFO L82 PathProgramCache]: Analyzing trace with hash -1486605840, now seen corresponding path program 1 times [2018-12-31 04:07:57,305 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 04:07:57,305 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 04:07:57,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:07:57,307 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 04:07:57,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:07:57,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 04:07:57,462 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 04:07:57,462 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 04:07:57,463 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-31 04:07:57,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-31 04:07:57,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-31 04:07:57,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-31 04:07:57,464 INFO L87 Difference]: Start difference. First operand 92 states and 103 transitions. Second operand 6 states. [2018-12-31 04:07:58,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 04:07:58,066 INFO L93 Difference]: Finished difference Result 210 states and 230 transitions. [2018-12-31 04:07:58,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-31 04:07:58,071 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-12-31 04:07:58,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 04:07:58,074 INFO L225 Difference]: With dead ends: 210 [2018-12-31 04:07:58,074 INFO L226 Difference]: Without dead ends: 208 [2018-12-31 04:07:58,075 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-12-31 04:07:58,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2018-12-31 04:07:58,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 98. [2018-12-31 04:07:58,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-12-31 04:07:58,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 109 transitions. [2018-12-31 04:07:58,089 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 109 transitions. Word has length 23 [2018-12-31 04:07:58,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 04:07:58,090 INFO L480 AbstractCegarLoop]: Abstraction has 98 states and 109 transitions. [2018-12-31 04:07:58,090 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-31 04:07:58,090 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 109 transitions. [2018-12-31 04:07:58,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-31 04:07:58,091 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 04:07:58,091 INFO L402 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] [2018-12-31 04:07:58,094 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 04:07:58,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 04:07:58,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1760261746, now seen corresponding path program 1 times [2018-12-31 04:07:58,095 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 04:07:58,095 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 04:07:58,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:07:58,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 04:07:58,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:07:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 04:07:58,205 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 04:07:58,206 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 04:07:58,206 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-31 04:07:58,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-31 04:07:58,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-31 04:07:58,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-31 04:07:58,208 INFO L87 Difference]: Start difference. First operand 98 states and 109 transitions. Second operand 6 states. [2018-12-31 04:07:58,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 04:07:58,686 INFO L93 Difference]: Finished difference Result 208 states and 228 transitions. [2018-12-31 04:07:58,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-31 04:07:58,687 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-12-31 04:07:58,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 04:07:58,690 INFO L225 Difference]: With dead ends: 208 [2018-12-31 04:07:58,690 INFO L226 Difference]: Without dead ends: 206 [2018-12-31 04:07:58,691 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-12-31 04:07:58,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2018-12-31 04:07:58,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 104. [2018-12-31 04:07:58,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-12-31 04:07:58,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 115 transitions. [2018-12-31 04:07:58,701 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 115 transitions. Word has length 23 [2018-12-31 04:07:58,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 04:07:58,701 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 115 transitions. [2018-12-31 04:07:58,701 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-31 04:07:58,701 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 115 transitions. [2018-12-31 04:07:58,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-31 04:07:58,702 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 04:07:58,703 INFO L402 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] [2018-12-31 04:07:58,703 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 04:07:58,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 04:07:58,704 INFO L82 PathProgramCache]: Analyzing trace with hash -2060804288, now seen corresponding path program 1 times [2018-12-31 04:07:58,704 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 04:07:58,704 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 04:07:58,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:07:58,705 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 04:07:58,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:07:58,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 04:07:58,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 04:07:58,800 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 04:07:58,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 04:07:58 BoogieIcfgContainer [2018-12-31 04:07:58,839 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 04:07:58,839 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 04:07:58,840 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 04:07:58,840 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 04:07:58,840 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 04:07:53" (3/4) ... [2018-12-31 04:07:58,843 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-31 04:07:58,906 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 04:07:58,906 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 04:07:58,907 INFO L168 Benchmark]: Toolchain (without parser) took 7440.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 951.4 MB in the beginning and 871.0 MB in the end (delta: 80.4 MB). Peak memory consumption was 220.4 MB. Max. memory is 11.5 GB. [2018-12-31 04:07:58,909 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 04:07:58,909 INFO L168 Benchmark]: CACSL2BoogieTranslator took 834.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -169.6 MB). Peak memory consumption was 36.0 MB. Max. memory is 11.5 GB. [2018-12-31 04:07:58,911 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-31 04:07:58,911 INFO L168 Benchmark]: Boogie Preprocessor took 76.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 04:07:58,912 INFO L168 Benchmark]: RCFGBuilder took 1257.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 45.3 MB). Peak memory consumption was 45.3 MB. Max. memory is 11.5 GB. [2018-12-31 04:07:58,913 INFO L168 Benchmark]: TraceAbstraction took 5112.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 871.0 MB in the end (delta: 191.2 MB). Peak memory consumption was 191.2 MB. Max. memory is 11.5 GB. [2018-12-31 04:07:58,914 INFO L168 Benchmark]: Witness Printer took 66.65 ms. Allocated memory is still 1.2 GB. Free memory is still 871.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 04:07:58,919 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 834.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -169.6 MB). Peak memory consumption was 36.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 86.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 76.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1257.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 45.3 MB). Peak memory consumption was 45.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5112.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 871.0 MB in the end (delta: 191.2 MB). Peak memory consumption was 191.2 MB. Max. memory is 11.5 GB. * Witness Printer took 66.65 ms. Allocated memory is still 1.2 GB. Free memory is still 871.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 554]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L627] struct list *data = ((void *)0); [L628] COND TRUE __VERIFIER_nondet_int() [L629] struct node *node = malloc(sizeof *node); [L630] COND FALSE !(!node) [L632] node->next = node [L633] node->value = __VERIFIER_nondet_int() [L634] struct list *item = malloc(sizeof *item); [L635] COND FALSE !(!item) [L637] item->slist = node [L638] item->next = data [L639] data = item [L628] COND FALSE !(__VERIFIER_nondet_int()) [L641] COND FALSE !(!data) [L604] COND FALSE !(!(shape)) [L605] shape->next [L605] COND FALSE !(shape->next) [L611] COND FALSE !(!(shape)) [L612] EXPR shape->next [L612] COND FALSE !(!(shape->next == ((void *)0))) [L613] EXPR shape->slist [L613] COND FALSE !(!(shape->slist)) [L614] EXPR shape->slist [L614] EXPR shape->slist->next [L614] COND TRUE !(shape->slist->next == ((void *)0)) [L554] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 99 locations, 13 error locations. UNSAFE Result, 5.0s OverallTime, 8 OverallIterations, 2 TraceHistogramMax, 3.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 606 SDtfs, 1418 SDslu, 979 SDs, 0 SdLazy, 502 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 396 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 138 NumberOfCodeBlocks, 138 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 9999 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 10/10 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...