./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test30-2.c --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_cebc404a-f991-428c-a24a-4b3348f88156/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_cebc404a-f991-428c-a24a-4b3348f88156/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cebc404a-f991-428c-a24a-4b3348f88156/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cebc404a-f991-428c-a24a-4b3348f88156/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test30-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_cebc404a-f991-428c-a24a-4b3348f88156/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cebc404a-f991-428c-a24a-4b3348f88156/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 dbf4229fc71e086a20df7dc549a8cc43d35a83d5 ........................................................................................................................................................................................................................................ 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 01:52:36,105 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 01:52:36,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 01:52:36,123 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 01:52:36,124 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 01:52:36,125 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 01:52:36,127 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 01:52:36,136 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 01:52:36,141 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 01:52:36,146 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 01:52:36,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 01:52:36,148 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 01:52:36,148 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 01:52:36,151 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 01:52:36,152 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 01:52:36,153 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 01:52:36,154 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 01:52:36,154 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 01:52:36,157 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 01:52:36,161 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 01:52:36,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 01:52:36,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 01:52:36,170 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 01:52:36,171 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 01:52:36,173 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 01:52:36,173 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 01:52:36,173 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 01:52:36,175 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 01:52:36,176 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 01:52:36,177 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 01:52:36,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 01:52:36,177 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 01:52:36,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 01:52:36,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 01:52:36,180 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 01:52:36,180 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 01:52:36,181 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 01:52:36,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 01:52:36,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 01:52:36,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 01:52:36,183 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 01:52:36,184 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cebc404a-f991-428c-a24a-4b3348f88156/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 01:52:36,212 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 01:52:36,212 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 01:52:36,213 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 01:52:36,213 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 01:52:36,214 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 01:52:36,214 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 01:52:36,214 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 01:52:36,214 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 01:52:36,215 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 01:52:36,215 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 01:52:36,215 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 01:52:36,215 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 01:52:36,215 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 01:52:36,216 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 01:52:36,216 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 01:52:36,216 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 01:52:36,216 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 01:52:36,216 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 01:52:36,217 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 01:52:36,217 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 01:52:36,217 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 01:52:36,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 01:52:36,217 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 01:52:36,218 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 01:52:36,218 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 01:52:36,218 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 01:52:36,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 01:52:36,218 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 01:52:36,219 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_cebc404a-f991-428c-a24a-4b3348f88156/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 -> dbf4229fc71e086a20df7dc549a8cc43d35a83d5 [2019-11-20 01:52:36,410 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 01:52:36,422 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 01:52:36,426 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 01:52:36,427 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 01:52:36,427 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 01:52:36,429 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cebc404a-f991-428c-a24a-4b3348f88156/bin/uautomizer/../../sv-benchmarks/c/ldv-regression/test30-2.c [2019-11-20 01:52:36,496 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cebc404a-f991-428c-a24a-4b3348f88156/bin/uautomizer/data/2972d813f/91df1a6e8f944328a83e8ee893e36122/FLAGa522fe4d7 [2019-11-20 01:52:36,828 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 01:52:36,829 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cebc404a-f991-428c-a24a-4b3348f88156/sv-benchmarks/c/ldv-regression/test30-2.c [2019-11-20 01:52:36,834 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cebc404a-f991-428c-a24a-4b3348f88156/bin/uautomizer/data/2972d813f/91df1a6e8f944328a83e8ee893e36122/FLAGa522fe4d7 [2019-11-20 01:52:37,211 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cebc404a-f991-428c-a24a-4b3348f88156/bin/uautomizer/data/2972d813f/91df1a6e8f944328a83e8ee893e36122 [2019-11-20 01:52:37,213 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 01:52:37,214 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 01:52:37,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 01:52:37,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 01:52:37,221 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 01:52:37,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:52:37" (1/1) ... [2019-11-20 01:52:37,224 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c88b90e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:52:37, skipping insertion in model container [2019-11-20 01:52:37,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:52:37" (1/1) ... [2019-11-20 01:52:37,235 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 01:52:37,254 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 01:52:37,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:52:37,562 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 01:52:37,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:52:37,601 INFO L192 MainTranslator]: Completed translation [2019-11-20 01:52:37,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:52:37 WrapperNode [2019-11-20 01:52:37,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 01:52:37,603 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 01:52:37,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 01:52:37,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 01:52:37,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:52:37" (1/1) ... [2019-11-20 01:52:37,620 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:52:37" (1/1) ... [2019-11-20 01:52:37,640 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 01:52:37,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 01:52:37,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 01:52:37,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 01:52:37,651 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:52:37" (1/1) ... [2019-11-20 01:52:37,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:52:37" (1/1) ... [2019-11-20 01:52:37,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:52:37" (1/1) ... [2019-11-20 01:52:37,663 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:52:37" (1/1) ... [2019-11-20 01:52:37,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:52:37" (1/1) ... [2019-11-20 01:52:37,670 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:52:37" (1/1) ... [2019-11-20 01:52:37,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:52:37" (1/1) ... [2019-11-20 01:52:37,673 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 01:52:37,674 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 01:52:37,674 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 01:52:37,674 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 01:52:37,675 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:52:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cebc404a-f991-428c-a24a-4b3348f88156/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 01:52:37,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-20 01:52:37,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-20 01:52:37,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-20 01:52:37,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 01:52:37,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 01:52:37,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 01:52:37,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 01:52:37,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 01:52:38,006 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 01:52:38,007 INFO L285 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-20 01:52:38,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:52:38 BoogieIcfgContainer [2019-11-20 01:52:38,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 01:52:38,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 01:52:38,010 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 01:52:38,012 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 01:52:38,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:52:37" (1/3) ... [2019-11-20 01:52:38,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab1f597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:52:38, skipping insertion in model container [2019-11-20 01:52:38,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:52:37" (2/3) ... [2019-11-20 01:52:38,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab1f597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:52:38, skipping insertion in model container [2019-11-20 01:52:38,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:52:38" (3/3) ... [2019-11-20 01:52:38,015 INFO L109 eAbstractionObserver]: Analyzing ICFG test30-2.c [2019-11-20 01:52:38,023 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 01:52:38,028 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 01:52:38,036 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 01:52:38,055 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 01:52:38,055 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 01:52:38,055 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 01:52:38,055 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 01:52:38,056 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 01:52:38,056 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 01:52:38,056 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 01:52:38,056 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 01:52:38,069 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-20 01:52:38,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 01:52:38,074 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:52:38,075 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-20 01:52:38,075 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:52:38,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:52:38,080 INFO L82 PathProgramCache]: Analyzing trace with hash 889475945, now seen corresponding path program 1 times [2019-11-20 01:52:38,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:52:38,090 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705253883] [2019-11-20 01:52:38,090 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:52:38,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:52:38,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:52:38,292 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:52:38,293 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 01:52:38,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 01:52:38 BoogieIcfgContainer [2019-11-20 01:52:38,327 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 01:52:38,327 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 01:52:38,327 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 01:52:38,327 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 01:52:38,328 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:52:38" (3/4) ... [2019-11-20 01:52:38,330 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 01:52:38,374 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_cebc404a-f991-428c-a24a-4b3348f88156/bin/uautomizer/witness.graphml [2019-11-20 01:52:38,374 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 01:52:38,377 INFO L168 Benchmark]: Toolchain (without parser) took 1161.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -153.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:52:38,377 INFO L168 Benchmark]: CDTParser took 0.32 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 01:52:38,378 INFO L168 Benchmark]: CACSL2BoogieTranslator took 387.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -194.6 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-20 01:52:38,379 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.59 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-20 01:52:38,379 INFO L168 Benchmark]: Boogie Preprocessor took 31.74 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 01:52:38,380 INFO L168 Benchmark]: RCFGBuilder took 334.43 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-20 01:52:38,381 INFO L168 Benchmark]: TraceAbstraction took 318.01 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: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-11-20 01:52:38,381 INFO L168 Benchmark]: Witness Printer took 47.42 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 01:52:38,385 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 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 387.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -194.6 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 38.59 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.74 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 334.43 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 318.01 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: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Witness Printer took 47.42 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 31]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L3] int a = 1, b; [L5-L7] struct dummy { int *a, *b; } global = {&a, &b}; VAL [a={5:0}, b={2:0}, global={3:0}] [L21] struct dummy *pd = &global; [L16] \read(**pb) [L16] \read(**pb) [L11] EXPR \read(*pb) [L11] *pa = *pb [L25] EXPR \read(a) [L25] EXPR \read(b) VAL [a={5:0}, b={2:0}, global={3:0}] [L25] COND TRUE a != b [L31] __VERIFIER_error() VAL [a={5:0}, b={2:0}, global={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, 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=10occurred 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, 6 NumberOfCodeBlocks, 6 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...