./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test26-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_85339063-2ff1-40fa-8498-ab20ec6ce184/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_85339063-2ff1-40fa-8498-ab20ec6ce184/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_85339063-2ff1-40fa-8498-ab20ec6ce184/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_85339063-2ff1-40fa-8498-ab20ec6ce184/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test26-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_85339063-2ff1-40fa-8498-ab20ec6ce184/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_85339063-2ff1-40fa-8498-ab20ec6ce184/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 e02278ee7d9986faf1ae0635ee11725f823e79f3 ..................................................................................................................................................................................................................................... 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-cad4683 [2019-11-15 22:06:49,167 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:06:49,169 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:06:49,183 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:06:49,183 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:06:49,184 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:06:49,186 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:06:49,195 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:06:49,200 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:06:49,204 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:06:49,205 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:06:49,206 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:06:49,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:06:49,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:06:49,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:06:49,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:06:49,211 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:06:49,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:06:49,214 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:06:49,217 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:06:49,220 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:06:49,222 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:06:49,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:06:49,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:06:49,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:06:49,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:06:49,228 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:06:49,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:06:49,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:06:49,230 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:06:49,231 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:06:49,231 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:06:49,232 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:06:49,232 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:06:49,234 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:06:49,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:06:49,235 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:06:49,235 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:06:49,235 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:06:49,236 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:06:49,236 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:06:49,238 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_85339063-2ff1-40fa-8498-ab20ec6ce184/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 22:06:49,261 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:06:49,262 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:06:49,263 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:06:49,263 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:06:49,263 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:06:49,263 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:06:49,264 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:06:49,264 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 22:06:49,264 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:06:49,264 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:06:49,264 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 22:06:49,265 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:06:49,265 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 22:06:49,265 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:06:49,265 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:06:49,265 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:06:49,266 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 22:06:49,266 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:06:49,266 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:06:49,266 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:06:49,266 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:06:49,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:06:49,267 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:06:49,267 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:06:49,267 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 22:06:49,268 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 22:06:49,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 22:06:49,268 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 22:06:49,268 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_85339063-2ff1-40fa-8498-ab20ec6ce184/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 -> e02278ee7d9986faf1ae0635ee11725f823e79f3 [2019-11-15 22:06:49,313 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:06:49,323 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:06:49,327 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:06:49,331 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:06:49,331 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:06:49,332 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_85339063-2ff1-40fa-8498-ab20ec6ce184/bin/uautomizer/../../sv-benchmarks/c/ldv-regression/test26-2.c [2019-11-15 22:06:49,391 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_85339063-2ff1-40fa-8498-ab20ec6ce184/bin/uautomizer/data/4e42c82c5/a740150c51be40c180274eec91455d49/FLAG64774291d [2019-11-15 22:06:49,794 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:06:49,795 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_85339063-2ff1-40fa-8498-ab20ec6ce184/sv-benchmarks/c/ldv-regression/test26-2.c [2019-11-15 22:06:49,800 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_85339063-2ff1-40fa-8498-ab20ec6ce184/bin/uautomizer/data/4e42c82c5/a740150c51be40c180274eec91455d49/FLAG64774291d [2019-11-15 22:06:49,814 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_85339063-2ff1-40fa-8498-ab20ec6ce184/bin/uautomizer/data/4e42c82c5/a740150c51be40c180274eec91455d49 [2019-11-15 22:06:49,817 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:06:49,818 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:06:49,822 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:06:49,823 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:06:49,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:06:49,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:06:49" (1/1) ... [2019-11-15 22:06:49,829 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c8950df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:49, skipping insertion in model container [2019-11-15 22:06:49,829 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:06:49" (1/1) ... [2019-11-15 22:06:49,835 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:06:49,852 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:06:50,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:06:50,132 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:06:50,145 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:06:50,160 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:06:50,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:50 WrapperNode [2019-11-15 22:06:50,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:06:50,161 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:06:50,162 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:06:50,162 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:06:50,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:50" (1/1) ... [2019-11-15 22:06:50,183 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:50" (1/1) ... [2019-11-15 22:06:50,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:06:50,206 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:06:50,206 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:06:50,206 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:06:50,215 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:50" (1/1) ... [2019-11-15 22:06:50,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:50" (1/1) ... [2019-11-15 22:06:50,218 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:50" (1/1) ... [2019-11-15 22:06:50,218 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:50" (1/1) ... [2019-11-15 22:06:50,233 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:50" (1/1) ... [2019-11-15 22:06:50,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:50" (1/1) ... [2019-11-15 22:06:50,241 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:50" (1/1) ... [2019-11-15 22:06:50,243 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:06:50,244 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:06:50,244 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:06:50,244 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:06:50,245 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_85339063-2ff1-40fa-8498-ab20ec6ce184/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 [2019-11-15 22:06:50,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 22:06:50,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:06:50,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:06:50,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 22:06:50,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-15 22:06:50,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 22:06:50,535 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:06:50,536 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-15 22:06:50,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:06:50 BoogieIcfgContainer [2019-11-15 22:06:50,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:06:50,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:06:50,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:06:50,541 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:06:50,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:06:49" (1/3) ... [2019-11-15 22:06:50,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44bb06a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:06:50, skipping insertion in model container [2019-11-15 22:06:50,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:06:50" (2/3) ... [2019-11-15 22:06:50,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44bb06a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:06:50, skipping insertion in model container [2019-11-15 22:06:50,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:06:50" (3/3) ... [2019-11-15 22:06:50,545 INFO L109 eAbstractionObserver]: Analyzing ICFG test26-2.c [2019-11-15 22:06:50,554 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:06:50,561 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 22:06:50,571 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 22:06:50,593 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:06:50,594 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 22:06:50,594 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:06:50,594 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:06:50,594 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:06:50,595 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:06:50,595 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:06:50,595 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:06:50,608 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-11-15 22:06:50,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-15 22:06:50,615 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:06:50,616 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-15 22:06:50,619 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:06:50,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:06:50,624 INFO L82 PathProgramCache]: Analyzing trace with hash 28692805, now seen corresponding path program 1 times [2019-11-15 22:06:50,630 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:06:50,630 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932202487] [2019-11-15 22:06:50,630 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:06:50,631 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:06:50,631 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:06:50,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:06:50,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:06:50,751 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:06:50,751 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 22:06:50,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 10:06:50 BoogieIcfgContainer [2019-11-15 22:06:50,777 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 22:06:50,777 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:06:50,778 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:06:50,778 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:06:50,778 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:06:50" (3/4) ... [2019-11-15 22:06:50,780 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-15 22:06:50,821 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_85339063-2ff1-40fa-8498-ab20ec6ce184/bin/uautomizer/witness.graphml [2019-11-15 22:06:50,821 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:06:50,824 INFO L168 Benchmark]: Toolchain (without parser) took 1004.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -174.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:06:50,824 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:06:50,825 INFO L168 Benchmark]: CACSL2BoogieTranslator took 338.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -211.7 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. [2019-11-15 22:06:50,825 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.01 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:06:50,826 INFO L168 Benchmark]: Boogie Preprocessor took 37.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:06:50,826 INFO L168 Benchmark]: RCFGBuilder took 293.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-15 22:06:50,827 INFO L168 Benchmark]: TraceAbstraction took 239.40 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: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2019-11-15 22:06:50,828 INFO L168 Benchmark]: Witness Printer took 44.14 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-15 22:06:50,831 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 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 338.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -211.7 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.01 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 293.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 239.40 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: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * Witness Printer took 44.14 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 24]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L3-L5] struct dummy { int a, b; } global = {0, 1}; VAL [global={2:0}] [L14] struct dummy *pd = &global; [L9] EXPR \read(*pb) [L9] *pa = *pb [L18] EXPR pd->a [L18] EXPR global.b VAL [global={2:0}] [L18] COND TRUE pd->a != global.b [L24] __VERIFIER_error() VAL [global={2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 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=9occurred 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, 5 NumberOfCodeBlocks, 5 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...