./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/locks/test_locks_14-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/locks/test_locks_14-2.c -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 4c4a63b42b00dbfea9a5b040626d99ec84a4e61b ................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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-f470102 [2019-11-28 15:40:26,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 15:40:26,040 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 15:40:26,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 15:40:26,062 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 15:40:26,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 15:40:26,067 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 15:40:26,077 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 15:40:26,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 15:40:26,087 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 15:40:26,088 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 15:40:26,090 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 15:40:26,091 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 15:40:26,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 15:40:26,095 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 15:40:26,097 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 15:40:26,099 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 15:40:26,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 15:40:26,103 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 15:40:26,107 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 15:40:26,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 15:40:26,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 15:40:26,117 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 15:40:26,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 15:40:26,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 15:40:26,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 15:40:26,122 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 15:40:26,124 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 15:40:26,125 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 15:40:26,126 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 15:40:26,126 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 15:40:26,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 15:40:26,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 15:40:26,129 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 15:40:26,130 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 15:40:26,131 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 15:40:26,132 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 15:40:26,132 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 15:40:26,133 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 15:40:26,134 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 15:40:26,135 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 15:40:26,136 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 15:40:26,173 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 15:40:26,174 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 15:40:26,178 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 15:40:26,179 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 15:40:26,179 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 15:40:26,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 15:40:26,180 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 15:40:26,180 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 15:40:26,181 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 15:40:26,181 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 15:40:26,182 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 15:40:26,182 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 15:40:26,182 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 15:40:26,183 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 15:40:26,183 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 15:40:26,184 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 15:40:26,184 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 15:40:26,184 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 15:40:26,184 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 15:40:26,185 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 15:40:26,185 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 15:40:26,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 15:40:26,186 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 15:40:26,186 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 15:40:26,186 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 15:40:26,187 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 15:40:26,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 15:40:26,187 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 15:40:26,187 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 15:40:26,188 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c4a63b42b00dbfea9a5b040626d99ec84a4e61b [2019-11-28 15:40:26,511 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 15:40:26,525 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 15:40:26,528 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 15:40:26,530 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 15:40:26,531 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 15:40:26,531 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/locks/test_locks_14-2.c [2019-11-28 15:40:26,608 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/009e9384b/0e93bcc0a143489680ac528bf78b4dd7/FLAG8026bb33d [2019-11-28 15:40:27,125 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 15:40:27,126 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_14-2.c [2019-11-28 15:40:27,141 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/009e9384b/0e93bcc0a143489680ac528bf78b4dd7/FLAG8026bb33d [2019-11-28 15:40:27,483 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/009e9384b/0e93bcc0a143489680ac528bf78b4dd7 [2019-11-28 15:40:27,487 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 15:40:27,489 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 15:40:27,490 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 15:40:27,491 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 15:40:27,495 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 15:40:27,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:40:27" (1/1) ... [2019-11-28 15:40:27,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5562b866 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:27, skipping insertion in model container [2019-11-28 15:40:27,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:40:27" (1/1) ... [2019-11-28 15:40:27,512 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 15:40:27,556 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 15:40:27,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 15:40:27,787 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 15:40:27,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 15:40:27,896 INFO L208 MainTranslator]: Completed translation [2019-11-28 15:40:27,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:27 WrapperNode [2019-11-28 15:40:27,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 15:40:27,898 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 15:40:27,898 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 15:40:27,898 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 15:40:27,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:27" (1/1) ... [2019-11-28 15:40:27,915 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:27" (1/1) ... [2019-11-28 15:40:27,949 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 15:40:27,950 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 15:40:27,950 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 15:40:27,950 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 15:40:27,960 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:27" (1/1) ... [2019-11-28 15:40:27,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:27" (1/1) ... [2019-11-28 15:40:27,963 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:27" (1/1) ... [2019-11-28 15:40:27,963 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:27" (1/1) ... [2019-11-28 15:40:27,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:27" (1/1) ... [2019-11-28 15:40:27,975 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:27" (1/1) ... [2019-11-28 15:40:27,977 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:27" (1/1) ... [2019-11-28 15:40:27,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 15:40:27,981 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 15:40:27,981 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 15:40:27,981 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 15:40:27,982 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:27" (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 [2019-11-28 15:40:28,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 15:40:28,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 15:40:28,447 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 15:40:28,447 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-28 15:40:28,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:40:28 BoogieIcfgContainer [2019-11-28 15:40:28,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 15:40:28,450 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 15:40:28,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 15:40:28,454 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 15:40:28,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:40:27" (1/3) ... [2019-11-28 15:40:28,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d8ef3c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:40:28, skipping insertion in model container [2019-11-28 15:40:28,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:40:27" (2/3) ... [2019-11-28 15:40:28,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d8ef3c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:40:28, skipping insertion in model container [2019-11-28 15:40:28,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:40:28" (3/3) ... [2019-11-28 15:40:28,458 INFO L109 eAbstractionObserver]: Analyzing ICFG test_locks_14-2.c [2019-11-28 15:40:28,471 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 15:40:28,479 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 15:40:28,493 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 15:40:28,528 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 15:40:28,528 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 15:40:28,528 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 15:40:28,529 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 15:40:28,529 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 15:40:28,529 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 15:40:28,529 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 15:40:28,530 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 15:40:28,546 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2019-11-28 15:40:28,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-28 15:40:28,551 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:40:28,552 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 15:40:28,553 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:40:28,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:40:28,558 INFO L82 PathProgramCache]: Analyzing trace with hash 458325173, now seen corresponding path program 1 times [2019-11-28 15:40:28,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:40:28,567 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944520913] [2019-11-28 15:40:28,567 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:40:28,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 15:40:28,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 15:40:28,769 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944520913] [2019-11-28 15:40:28,770 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 15:40:28,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 15:40:28,772 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311860939] [2019-11-28 15:40:28,776 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 15:40:28,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 15:40:28,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 15:40:28,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 15:40:28,791 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 3 states. [2019-11-28 15:40:28,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 15:40:28,862 INFO L93 Difference]: Finished difference Result 106 states and 192 transitions. [2019-11-28 15:40:28,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 15:40:28,864 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-11-28 15:40:28,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 15:40:28,887 INFO L225 Difference]: With dead ends: 106 [2019-11-28 15:40:28,887 INFO L226 Difference]: Without dead ends: 92 [2019-11-28 15:40:28,894 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 15:40:28,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-11-28 15:40:28,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 62. [2019-11-28 15:40:28,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-11-28 15:40:28,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 117 transitions. [2019-11-28 15:40:28,937 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 117 transitions. Word has length 20 [2019-11-28 15:40:28,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 15:40:28,937 INFO L462 AbstractCegarLoop]: Abstraction has 62 states and 117 transitions. [2019-11-28 15:40:28,938 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 15:40:28,938 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 117 transitions. [2019-11-28 15:40:28,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-28 15:40:28,939 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:40:28,939 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 15:40:28,939 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:40:28,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:40:28,940 INFO L82 PathProgramCache]: Analyzing trace with hash 458332365, now seen corresponding path program 1 times [2019-11-28 15:40:28,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:40:28,940 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653220915] [2019-11-28 15:40:28,941 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:40:28,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 15:40:29,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 15:40:29,014 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653220915] [2019-11-28 15:40:29,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 15:40:29,015 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 15:40:29,015 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508985717] [2019-11-28 15:40:29,017 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 15:40:29,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 15:40:29,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 15:40:29,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 15:40:29,020 INFO L87 Difference]: Start difference. First operand 62 states and 117 transitions. Second operand 3 states. [2019-11-28 15:40:29,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 15:40:29,054 INFO L93 Difference]: Finished difference Result 154 states and 290 transitions. [2019-11-28 15:40:29,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 15:40:29,055 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-11-28 15:40:29,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 15:40:29,057 INFO L225 Difference]: With dead ends: 154 [2019-11-28 15:40:29,057 INFO L226 Difference]: Without dead ends: 93 [2019-11-28 15:40:29,058 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 15:40:29,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-11-28 15:40:29,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2019-11-28 15:40:29,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-11-28 15:40:29,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 171 transitions. [2019-11-28 15:40:29,073 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 171 transitions. Word has length 20 [2019-11-28 15:40:29,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 15:40:29,074 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 171 transitions. [2019-11-28 15:40:29,074 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 15:40:29,074 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 171 transitions. [2019-11-28 15:40:29,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-28 15:40:29,075 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:40:29,076 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 15:40:29,076 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:40:29,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:40:29,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1130022729, now seen corresponding path program 1 times [2019-11-28 15:40:29,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:40:29,077 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244381171] [2019-11-28 15:40:29,078 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:40:29,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 15:40:29,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 15:40:29,154 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244381171] [2019-11-28 15:40:29,154 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 15:40:29,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 15:40:29,155 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087964894] [2019-11-28 15:40:29,155 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 15:40:29,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 15:40:29,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 15:40:29,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 15:40:29,156 INFO L87 Difference]: Start difference. First operand 91 states and 171 transitions. Second operand 3 states. [2019-11-28 15:40:29,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 15:40:29,197 INFO L93 Difference]: Finished difference Result 142 states and 260 transitions. [2019-11-28 15:40:29,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 15:40:29,198 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-11-28 15:40:29,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 15:40:29,199 INFO L225 Difference]: With dead ends: 142 [2019-11-28 15:40:29,200 INFO L226 Difference]: Without dead ends: 95 [2019-11-28 15:40:29,200 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 15:40:29,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-11-28 15:40:29,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2019-11-28 15:40:29,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-11-28 15:40:29,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 171 transitions. [2019-11-28 15:40:29,214 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 171 transitions. Word has length 20 [2019-11-28 15:40:29,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 15:40:29,215 INFO L462 AbstractCegarLoop]: Abstraction has 93 states and 171 transitions. [2019-11-28 15:40:29,215 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 15:40:29,215 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 171 transitions. [2019-11-28 15:40:29,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-28 15:40:29,216 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:40:29,216 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 15:40:29,217 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:40:29,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:40:29,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1130015537, now seen corresponding path program 1 times [2019-11-28 15:40:29,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:40:29,218 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656180365] [2019-11-28 15:40:29,218 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:40:29,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 15:40:29,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 15:40:29,276 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656180365] [2019-11-28 15:40:29,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 15:40:29,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 15:40:29,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529974439] [2019-11-28 15:40:29,279 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 15:40:29,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 15:40:29,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 15:40:29,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 15:40:29,283 INFO L87 Difference]: Start difference. First operand 93 states and 171 transitions. Second operand 3 states. [2019-11-28 15:40:29,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 15:40:29,325 INFO L93 Difference]: Finished difference Result 215 states and 397 transitions. [2019-11-28 15:40:29,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 15:40:29,327 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-11-28 15:40:29,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 15:40:29,328 INFO L225 Difference]: With dead ends: 215 [2019-11-28 15:40:29,328 INFO L226 Difference]: Without dead ends: 126 [2019-11-28 15:40:29,330 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 15:40:29,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2019-11-28 15:40:29,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 124. [2019-11-28 15:40:29,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-11-28 15:40:29,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 226 transitions. [2019-11-28 15:40:29,345 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 226 transitions. Word has length 20 [2019-11-28 15:40:29,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 15:40:29,347 INFO L462 AbstractCegarLoop]: Abstraction has 124 states and 226 transitions. [2019-11-28 15:40:29,347 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 15:40:29,347 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 226 transitions. [2019-11-28 15:40:29,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-28 15:40:29,350 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:40:29,350 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 15:40:29,353 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:40:29,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:40:29,353 INFO L82 PathProgramCache]: Analyzing trace with hash 2143883405, now seen corresponding path program 1 times [2019-11-28 15:40:29,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:40:29,354 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193669999] [2019-11-28 15:40:29,354 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:40:29,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 15:40:29,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 15:40:29,454 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 15:40:29,454 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 15:40:29,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:40:29 BoogieIcfgContainer [2019-11-28 15:40:29,489 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 15:40:29,490 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 15:40:29,490 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 15:40:29,490 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 15:40:29,491 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:40:28" (3/4) ... [2019-11-28 15:40:29,493 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 15:40:29,571 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 15:40:29,571 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 15:40:29,574 INFO L168 Benchmark]: Toolchain (without parser) took 2084.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 959.0 MB in the beginning and 1.0 GB in the end (delta: -83.0 MB). Peak memory consumption was 55.4 MB. Max. memory is 11.5 GB. [2019-11-28 15:40:29,575 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 15:40:29,576 INFO L168 Benchmark]: CACSL2BoogieTranslator took 407.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 959.0 MB in the beginning and 1.1 GB in the end (delta: -175.9 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-11-28 15:40:29,577 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.62 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 15:40:29,577 INFO L168 Benchmark]: Boogie Preprocessor took 30.58 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. [2019-11-28 15:40:29,578 INFO L168 Benchmark]: RCFGBuilder took 468.63 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: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-11-28 15:40:29,579 INFO L168 Benchmark]: TraceAbstraction took 1038.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. [2019-11-28 15:40:29,579 INFO L168 Benchmark]: Witness Printer took 81.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 15:40:29,583 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 407.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 959.0 MB in the beginning and 1.1 GB in the end (delta: -175.9 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.62 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.58 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 468.63 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: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1038.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. * Witness Printer took 81.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 217]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L6] int p1 = __VERIFIER_nondet_int(); [L7] int lk1; [L9] int p2 = __VERIFIER_nondet_int(); [L10] int lk2; [L12] int p3 = __VERIFIER_nondet_int(); [L13] int lk3; [L15] int p4 = __VERIFIER_nondet_int(); [L16] int lk4; [L18] int p5 = __VERIFIER_nondet_int(); [L19] int lk5; [L21] int p6 = __VERIFIER_nondet_int(); [L22] int lk6; [L24] int p7 = __VERIFIER_nondet_int(); [L25] int lk7; [L27] int p8 = __VERIFIER_nondet_int(); [L28] int lk8; [L30] int p9 = __VERIFIER_nondet_int(); [L31] int lk9; [L33] int p10 = __VERIFIER_nondet_int(); [L34] int lk10; [L36] int p11 = __VERIFIER_nondet_int(); [L37] int lk11; [L39] int p12 = __VERIFIER_nondet_int(); [L40] int lk12; [L42] int p13 = __VERIFIER_nondet_int(); [L43] int lk13; [L45] int p14 = __VERIFIER_nondet_int(); [L46] int lk14; [L49] int cond; [L51] COND TRUE 1 [L52] cond = __VERIFIER_nondet_int() [L53] COND FALSE !(cond == 0) [L56] lk1 = 0 [L58] lk2 = 0 [L60] lk3 = 0 [L62] lk4 = 0 [L64] lk5 = 0 [L66] lk6 = 0 [L68] lk7 = 0 [L70] lk8 = 0 [L72] lk9 = 0 [L74] lk10 = 0 [L76] lk11 = 0 [L78] lk12 = 0 [L80] lk13 = 0 [L82] lk14 = 0 [L86] COND FALSE !(p1 != 0) [L90] COND FALSE !(p2 != 0) [L94] COND FALSE !(p3 != 0) [L98] COND TRUE p4 != 0 [L99] lk4 = 1 [L102] COND TRUE p5 != 0 [L103] lk5 = 1 [L106] COND TRUE p6 != 0 [L107] lk6 = 1 [L110] COND TRUE p7 != 0 [L111] lk7 = 1 [L114] COND TRUE p8 != 0 [L115] lk8 = 1 [L118] COND TRUE p9 != 0 [L119] lk9 = 1 [L122] COND TRUE p10 != 0 [L123] lk10 = 1 [L126] COND FALSE !(p11 != 0) [L130] COND TRUE p12 != 0 [L131] lk12 = 1 [L134] COND TRUE p13 != 0 [L135] lk13 = 1 [L138] COND TRUE p14 != 0 [L139] lk14 = 1 [L144] COND FALSE !(p1 != 0) [L149] COND FALSE !(p2 != 0) [L217] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 51 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 443 SDtfs, 282 SDslu, 282 SDs, 0 SdLazy, 21 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred in iteration=4, 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, 4 MinimizatonAttempts, 36 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 4142 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...