./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/alt_test.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c926846e-a05a-4680-9322-c59ca8204436/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c926846e-a05a-4680-9322-c59ca8204436/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c926846e-a05a-4680-9322-c59ca8204436/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c926846e-a05a-4680-9322-c59ca8204436/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/alt_test.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c926846e-a05a-4680-9322-c59ca8204436/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c926846e-a05a-4680-9322-c59ca8204436/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 28a1c96d0dcbab8e66df0b7e0c92c558fac63e78 ........................................................................................................................................................................................................................................................................................................................................................ 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 0.1.24-678e011 [2019-11-20 01:04:15,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 01:04:15,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 01:04:15,160 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 01:04:15,161 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 01:04:15,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 01:04:15,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 01:04:15,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 01:04:15,176 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 01:04:15,180 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 01:04:15,181 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 01:04:15,182 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 01:04:15,183 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 01:04:15,184 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 01:04:15,185 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 01:04:15,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 01:04:15,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 01:04:15,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 01:04:15,190 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 01:04:15,194 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 01:04:15,197 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 01:04:15,199 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 01:04:15,201 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 01:04:15,202 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 01:04:15,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 01:04:15,204 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 01:04:15,204 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 01:04:15,206 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 01:04:15,206 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 01:04:15,207 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 01:04:15,207 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 01:04:15,208 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 01:04:15,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 01:04:15,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 01:04:15,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 01:04:15,210 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 01:04:15,211 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 01:04:15,211 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 01:04:15,211 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 01:04:15,212 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 01:04:15,213 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 01:04:15,214 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c926846e-a05a-4680-9322-c59ca8204436/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 01:04:15,237 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 01:04:15,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 01:04:15,248 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 01:04:15,248 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 01:04:15,248 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 01:04:15,248 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 01:04:15,248 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 01:04:15,249 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 01:04:15,249 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 01:04:15,249 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 01:04:15,249 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 01:04:15,249 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 01:04:15,250 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 01:04:15,250 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 01:04:15,250 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 01:04:15,250 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 01:04:15,250 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 01:04:15,251 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 01:04:15,251 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 01:04:15,251 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 01:04:15,251 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 01:04:15,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 01:04:15,252 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 01:04:15,252 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 01:04:15,252 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 01:04:15,252 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 01:04:15,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 01:04:15,253 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 01:04:15,253 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_c926846e-a05a-4680-9322-c59ca8204436/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 -> 28a1c96d0dcbab8e66df0b7e0c92c558fac63e78 [2019-11-20 01:04:15,414 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 01:04:15,424 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 01:04:15,427 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 01:04:15,429 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 01:04:15,429 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 01:04:15,430 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c926846e-a05a-4680-9322-c59ca8204436/bin/uautomizer/../../sv-benchmarks/c/ldv-regression/alt_test.i [2019-11-20 01:04:15,484 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c926846e-a05a-4680-9322-c59ca8204436/bin/uautomizer/data/e638fd4d4/21578dc9fd4440ef919ebb6919e51bdd/FLAG5c4497cc6 [2019-11-20 01:04:15,956 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 01:04:15,957 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c926846e-a05a-4680-9322-c59ca8204436/sv-benchmarks/c/ldv-regression/alt_test.i [2019-11-20 01:04:15,976 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c926846e-a05a-4680-9322-c59ca8204436/bin/uautomizer/data/e638fd4d4/21578dc9fd4440ef919ebb6919e51bdd/FLAG5c4497cc6 [2019-11-20 01:04:16,293 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c926846e-a05a-4680-9322-c59ca8204436/bin/uautomizer/data/e638fd4d4/21578dc9fd4440ef919ebb6919e51bdd [2019-11-20 01:04:16,296 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 01:04:16,297 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 01:04:16,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 01:04:16,298 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 01:04:16,302 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 01:04:16,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:04:16" (1/1) ... [2019-11-20 01:04:16,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23c4e7d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:04:16, skipping insertion in model container [2019-11-20 01:04:16,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:04:16" (1/1) ... [2019-11-20 01:04:16,310 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 01:04:16,353 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 01:04:16,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:04:16,758 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 01:04:16,795 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:04:16,899 INFO L192 MainTranslator]: Completed translation [2019-11-20 01:04:16,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:04:16 WrapperNode [2019-11-20 01:04:16,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 01:04:16,900 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 01:04:16,900 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 01:04:16,901 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 01:04:16,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:04:16" (1/1) ... [2019-11-20 01:04:16,941 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:04:16" (1/1) ... [2019-11-20 01:04:16,961 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 01:04:16,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 01:04:16,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 01:04:16,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 01:04:16,970 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:04:16" (1/1) ... [2019-11-20 01:04:16,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:04:16" (1/1) ... [2019-11-20 01:04:16,973 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:04:16" (1/1) ... [2019-11-20 01:04:16,973 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:04:16" (1/1) ... [2019-11-20 01:04:16,977 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:04:16" (1/1) ... [2019-11-20 01:04:16,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:04:16" (1/1) ... [2019-11-20 01:04:16,980 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:04:16" (1/1) ... [2019-11-20 01:04:16,982 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 01:04:16,983 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 01:04:16,983 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 01:04:16,983 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 01:04:16,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:04:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c926846e-a05a-4680-9322-c59ca8204436/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 [2019-11-20 01:04:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 01:04:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 01:04:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 01:04:17,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 01:04:17,330 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 01:04:17,331 INFO L285 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-20 01:04:17,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:04:17 BoogieIcfgContainer [2019-11-20 01:04:17,332 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 01:04:17,332 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 01:04:17,333 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 01:04:17,335 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 01:04:17,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:04:16" (1/3) ... [2019-11-20 01:04:17,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4db7cab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:04:17, skipping insertion in model container [2019-11-20 01:04:17,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:04:16" (2/3) ... [2019-11-20 01:04:17,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4db7cab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:04:17, skipping insertion in model container [2019-11-20 01:04:17,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:04:17" (3/3) ... [2019-11-20 01:04:17,339 INFO L109 eAbstractionObserver]: Analyzing ICFG alt_test.i [2019-11-20 01:04:17,347 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 01:04:17,353 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-20 01:04:17,363 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-20 01:04:17,387 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 01:04:17,388 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 01:04:17,388 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 01:04:17,388 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 01:04:17,389 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 01:04:17,389 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 01:04:17,389 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 01:04:17,390 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 01:04:17,403 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-11-20 01:04:17,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-20 01:04:17,408 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:04:17,409 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:04:17,409 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:04:17,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:04:17,414 INFO L82 PathProgramCache]: Analyzing trace with hash 119352108, now seen corresponding path program 1 times [2019-11-20 01:04:17,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:04:17,423 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982712875] [2019-11-20 01:04:17,423 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:04:17,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:04:17,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:04:17,581 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982712875] [2019-11-20 01:04:17,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:04:17,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 01:04:17,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359467911] [2019-11-20 01:04:17,587 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 01:04:17,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:04:17,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 01:04:17,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 01:04:17,602 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2019-11-20 01:04:17,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:04:17,648 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2019-11-20 01:04:17,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 01:04:17,651 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-20 01:04:17,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:04:17,659 INFO L225 Difference]: With dead ends: 39 [2019-11-20 01:04:17,659 INFO L226 Difference]: Without dead ends: 20 [2019-11-20 01:04:17,662 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 [2019-11-20 01:04:17,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-20 01:04:17,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2019-11-20 01:04:17,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-20 01:04:17,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2019-11-20 01:04:17,689 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 8 [2019-11-20 01:04:17,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:04:17,690 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2019-11-20 01:04:17,690 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 01:04:17,690 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2019-11-20 01:04:17,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-20 01:04:17,690 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:04:17,691 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:04:17,691 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:04:17,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:04:17,691 INFO L82 PathProgramCache]: Analyzing trace with hash 176610410, now seen corresponding path program 1 times [2019-11-20 01:04:17,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:04:17,691 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847345094] [2019-11-20 01:04:17,692 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:04:17,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:04:17,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:04:17,727 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847345094] [2019-11-20 01:04:17,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:04:17,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 01:04:17,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229130437] [2019-11-20 01:04:17,729 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 01:04:17,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:04:17,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 01:04:17,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 01:04:17,730 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 3 states. [2019-11-20 01:04:17,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:04:17,735 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2019-11-20 01:04:17,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 01:04:17,736 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-20 01:04:17,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:04:17,737 INFO L225 Difference]: With dead ends: 25 [2019-11-20 01:04:17,737 INFO L226 Difference]: Without dead ends: 13 [2019-11-20 01:04:17,738 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 [2019-11-20 01:04:17,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-11-20 01:04:17,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-11-20 01:04:17,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-20 01:04:17,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-11-20 01:04:17,740 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 8 [2019-11-20 01:04:17,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:04:17,740 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-11-20 01:04:17,740 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 01:04:17,741 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-11-20 01:04:17,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 01:04:17,741 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:04:17,742 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:04:17,742 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:04:17,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:04:17,742 INFO L82 PathProgramCache]: Analyzing trace with hash -262109109, now seen corresponding path program 1 times [2019-11-20 01:04:17,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:04:17,743 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245519963] [2019-11-20 01:04:17,743 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:04:17,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:04:17,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:04:17,795 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245519963] [2019-11-20 01:04:17,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:04:17,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 01:04:17,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650921742] [2019-11-20 01:04:17,796 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 01:04:17,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:04:17,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 01:04:17,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 01:04:17,797 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 5 states. [2019-11-20 01:04:17,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:04:17,844 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2019-11-20 01:04:17,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 01:04:17,844 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-11-20 01:04:17,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:04:17,845 INFO L225 Difference]: With dead ends: 19 [2019-11-20 01:04:17,845 INFO L226 Difference]: Without dead ends: 13 [2019-11-20 01:04:17,846 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-20 01:04:17,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-11-20 01:04:17,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-11-20 01:04:17,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-20 01:04:17,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2019-11-20 01:04:17,849 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 11 [2019-11-20 01:04:17,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:04:17,849 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2019-11-20 01:04:17,849 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 01:04:17,849 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2019-11-20 01:04:17,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 01:04:17,850 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:04:17,850 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:04:17,850 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:04:17,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:04:17,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1912419270, now seen corresponding path program 1 times [2019-11-20 01:04:17,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:04:17,851 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034173550] [2019-11-20 01:04:17,852 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:04:17,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:04:17,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:04:17,899 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:04:17,900 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 01:04:17,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 01:04:17 BoogieIcfgContainer [2019-11-20 01:04:17,939 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 01:04:17,939 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 01:04:17,940 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 01:04:17,940 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 01:04:17,940 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:04:17" (3/4) ... [2019-11-20 01:04:17,942 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 01:04:18,023 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c926846e-a05a-4680-9322-c59ca8204436/bin/uautomizer/witness.graphml [2019-11-20 01:04:18,025 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 01:04:18,028 INFO L168 Benchmark]: Toolchain (without parser) took 1729.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 944.6 MB in the beginning and 1.0 GB in the end (delta: -91.0 MB). Peak memory consumption was 55.8 MB. Max. memory is 11.5 GB. [2019-11-20 01:04:18,028 INFO L168 Benchmark]: CDTParser took 0.23 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. [2019-11-20 01:04:18,029 INFO L168 Benchmark]: CACSL2BoogieTranslator took 601.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -164.2 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. [2019-11-20 01:04:18,034 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.25 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-20 01:04:18,035 INFO L168 Benchmark]: Boogie Preprocessor took 20.74 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. [2019-11-20 01:04:18,035 INFO L168 Benchmark]: RCFGBuilder took 349.10 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: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-20 01:04:18,036 INFO L168 Benchmark]: TraceAbstraction took 606.71 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: 39.3 MB). Peak memory consumption was 39.3 MB. Max. memory is 11.5 GB. [2019-11-20 01:04:18,037 INFO L168 Benchmark]: Witness Printer took 85.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-20 01:04:18,048 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 601.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -164.2 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 61.25 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.74 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 349.10 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: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 606.71 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: 39.3 MB). Peak memory consumption was 39.3 MB. Max. memory is 11.5 GB. * Witness Printer took 85.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1601]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1606] int globalState = 0; VAL [globalState=0] [L1619] void *retVal = malloc(size); VAL [globalState=0] [L1620] COND TRUE retVal != ((void *)0) [L1621] globalState=1 VAL [globalState=1] [L1622] return retVal; VAL [globalState=1] [L1612] int *a = (int*) l_malloc(sizeof(int)); [L1629] COND TRUE ptr!=((void *)0) VAL [globalState=1] [L1629] (globalState == 1) ? (0) : __blast_assert () VAL [globalState=1] [L1630] globalState = 0 [L1629] COND TRUE ptr!=((void *)0) VAL [globalState=0] [L1629] (globalState == 1) ? (0) : __blast_assert () VAL [globalState=0] [L1601] __VERIFIER_error() VAL [globalState=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 2 error locations. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 40 SDtfs, 33 SDslu, 21 SDs, 0 SdLazy, 20 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 395 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...