./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test02.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3f173dc7-36d7-43b5-b7b2-9f0657f0ac64/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3f173dc7-36d7-43b5-b7b2-9f0657f0ac64/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3f173dc7-36d7-43b5-b7b2-9f0657f0ac64/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3f173dc7-36d7-43b5-b7b2-9f0657f0ac64/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test02.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3f173dc7-36d7-43b5-b7b2-9f0657f0ac64/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3f173dc7-36d7-43b5-b7b2-9f0657f0ac64/bin/uautomizer --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 4dac52ac01526cd7c5a6c950ddf0191864040fa0 ............................................................................................................................................................................................................................... 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 0.1.24-6b5699a [2019-11-25 08:52:45,056 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:52:45,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:52:45,071 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:52:45,071 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:52:45,072 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:52:45,074 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:52:45,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:52:45,087 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:52:45,091 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:52:45,092 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:52:45,093 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:52:45,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:52:45,095 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:52:45,096 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:52:45,097 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:52:45,098 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:52:45,099 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:52:45,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:52:45,104 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:52:45,108 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:52:45,111 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:52:45,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:52:45,113 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:52:45,115 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:52:45,115 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:52:45,115 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:52:45,116 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:52:45,117 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:52:45,117 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:52:45,118 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:52:45,118 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:52:45,119 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:52:45,120 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:52:45,121 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:52:45,121 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:52:45,122 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:52:45,122 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:52:45,122 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:52:45,123 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:52:45,124 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:52:45,125 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3f173dc7-36d7-43b5-b7b2-9f0657f0ac64/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:52:45,148 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:52:45,158 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:52:45,159 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:52:45,159 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:52:45,159 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:52:45,160 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:52:45,160 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:52:45,160 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:52:45,160 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:52:45,161 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:52:45,161 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:52:45,161 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:52:45,161 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:52:45,161 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:52:45,162 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:52:45,162 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:52:45,162 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:52:45,162 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:52:45,162 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:52:45,163 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:52:45,164 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:52:45,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:52:45,164 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:52:45,164 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:52:45,165 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:52:45,165 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:52:45,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:52:45,165 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:52:45,166 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_3f173dc7-36d7-43b5-b7b2-9f0657f0ac64/bin/uautomizer 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 -> 4dac52ac01526cd7c5a6c950ddf0191864040fa0 [2019-11-25 08:52:45,333 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:52:45,349 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:52:45,351 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:52:45,353 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:52:45,353 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:52:45,354 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3f173dc7-36d7-43b5-b7b2-9f0657f0ac64/bin/uautomizer/../../sv-benchmarks/c/ldv-regression/test02.c [2019-11-25 08:52:45,411 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3f173dc7-36d7-43b5-b7b2-9f0657f0ac64/bin/uautomizer/data/3b175cc04/a93a66578aa94ac1a760eb271099021c/FLAGdb4795970 [2019-11-25 08:52:45,772 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:52:45,773 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3f173dc7-36d7-43b5-b7b2-9f0657f0ac64/sv-benchmarks/c/ldv-regression/test02.c [2019-11-25 08:52:45,777 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3f173dc7-36d7-43b5-b7b2-9f0657f0ac64/bin/uautomizer/data/3b175cc04/a93a66578aa94ac1a760eb271099021c/FLAGdb4795970 [2019-11-25 08:52:46,202 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3f173dc7-36d7-43b5-b7b2-9f0657f0ac64/bin/uautomizer/data/3b175cc04/a93a66578aa94ac1a760eb271099021c [2019-11-25 08:52:46,204 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:52:46,205 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:52:46,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:52:46,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:52:46,209 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:52:46,210 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:52:46" (1/1) ... [2019-11-25 08:52:46,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23789068 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:46, skipping insertion in model container [2019-11-25 08:52:46,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:52:46" (1/1) ... [2019-11-25 08:52:46,218 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:52:46,231 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:52:46,364 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:52:46,368 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:52:46,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:52:46,498 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:52:46,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:46 WrapperNode [2019-11-25 08:52:46,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:52:46,499 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:52:46,499 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:52:46,499 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:52:46,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:46" (1/1) ... [2019-11-25 08:52:46,516 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:46" (1/1) ... [2019-11-25 08:52:46,530 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:52:46,531 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:52:46,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:52:46,531 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:52:46,538 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:46" (1/1) ... [2019-11-25 08:52:46,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:46" (1/1) ... [2019-11-25 08:52:46,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:46" (1/1) ... [2019-11-25 08:52:46,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:46" (1/1) ... [2019-11-25 08:52:46,542 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:46" (1/1) ... [2019-11-25 08:52:46,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:46" (1/1) ... [2019-11-25 08:52:46,544 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:46" (1/1) ... [2019-11-25 08:52:46,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:52:46,546 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:52:46,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:52:46,546 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:52:46,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3f173dc7-36d7-43b5-b7b2-9f0657f0ac64/bin/uautomizer/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 [2019-11-25 08:52:46,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:52:46,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:52:46,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:52:46,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:52:46,792 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:52:46,792 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-25 08:52:46,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:46 BoogieIcfgContainer [2019-11-25 08:52:46,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:52:46,794 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:52:46,794 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:52:46,797 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:52:46,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:52:46" (1/3) ... [2019-11-25 08:52:46,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6579bba0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:52:46, skipping insertion in model container [2019-11-25 08:52:46,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:46" (2/3) ... [2019-11-25 08:52:46,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6579bba0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:52:46, skipping insertion in model container [2019-11-25 08:52:46,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:46" (3/3) ... [2019-11-25 08:52:46,801 INFO L109 eAbstractionObserver]: Analyzing ICFG test02.c [2019-11-25 08:52:46,810 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:52:46,815 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:52:46,825 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:52:46,849 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:52:46,850 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:52:46,850 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:52:46,850 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:52:46,850 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:52:46,851 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:52:46,853 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:52:46,854 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:52:46,866 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-11-25 08:52:46,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-25 08:52:46,870 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:46,871 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-25 08:52:46,871 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:46,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:46,876 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2019-11-25 08:52:46,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:46,884 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983561445] [2019-11-25 08:52:46,885 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:46,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:46,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:46,995 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:52:46,996 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:52:47,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:52:47 BoogieIcfgContainer [2019-11-25 08:52:47,013 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:52:47,013 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:52:47,013 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:52:47,014 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:52:47,014 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:46" (3/4) ... [2019-11-25 08:52:47,016 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-25 08:52:47,052 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3f173dc7-36d7-43b5-b7b2-9f0657f0ac64/bin/uautomizer/witness.graphml [2019-11-25 08:52:47,052 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:52:47,054 INFO L168 Benchmark]: Toolchain (without parser) took 848.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -150.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:52:47,055 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:52:47,056 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -185.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:47,056 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.65 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. [2019-11-25 08:52:47,056 INFO L168 Benchmark]: Boogie Preprocessor took 14.63 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. [2019-11-25 08:52:47,057 INFO L168 Benchmark]: RCFGBuilder took 247.64 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: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:47,057 INFO L168 Benchmark]: TraceAbstraction took 218.80 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: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:47,058 INFO L168 Benchmark]: Witness Printer took 39.04 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:47,061 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 292.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -185.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.65 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. * Boogie Preprocessor took 14.63 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 247.64 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: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 218.80 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: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * Witness Printer took 39.04 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L4] int q; VAL [q=0] [L7] int a, b; [L8] int *p1 = &a; [L9] int *p2 = p1; [L11] q = 0 VAL [q=0] [L13] COND TRUE p1 == p2 VAL [q=0] [L19] __VERIFIER_error() VAL [q=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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...