./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/modpf.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9023d273-c228-4b06-ac95-5b9ee6916ca3/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9023d273-c228-4b06-ac95-5b9ee6916ca3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9023d273-c228-4b06-ac95-5b9ee6916ca3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9023d273-c228-4b06-ac95-5b9ee6916ca3/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/modpf.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9023d273-c228-4b06-ac95-5b9ee6916ca3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9023d273-c228-4b06-ac95-5b9ee6916ca3/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 b1557648863313236f1d48be8d1696695bc98e12 ...................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:19:32,139 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:19:32,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:19:32,148 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:19:32,148 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:19:32,149 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:19:32,150 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:19:32,151 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:19:32,153 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:19:32,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:19:32,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:19:32,155 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:19:32,155 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:19:32,156 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:19:32,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:19:32,157 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:19:32,158 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:19:32,158 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:19:32,160 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:19:32,161 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:19:32,163 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:19:32,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:19:32,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:19:32,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:19:32,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:19:32,166 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:19:32,166 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:19:32,167 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:19:32,167 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:19:32,168 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:19:32,168 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:19:32,168 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:19:32,169 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:19:32,169 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:19:32,170 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:19:32,170 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:19:32,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:19:32,171 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:19:32,171 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:19:32,171 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:19:32,172 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:19:32,172 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9023d273-c228-4b06-ac95-5b9ee6916ca3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 18:19:32,181 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:19:32,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:19:32,182 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:19:32,182 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:19:32,182 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:19:32,183 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:19:32,183 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:19:32,183 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:19:32,183 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:19:32,183 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:19:32,183 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:19:32,183 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:19:32,184 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:19:32,184 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:19:32,184 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:19:32,184 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:19:32,184 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:19:32,184 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:19:32,184 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:19:32,184 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:19:32,184 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:19:32,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:19:32,185 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:19:32,185 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:19:32,185 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:19:32,185 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:19:32,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:19:32,185 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:19:32,186 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:19:32,186 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_9023d273-c228-4b06-ac95-5b9ee6916ca3/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 -> b1557648863313236f1d48be8d1696695bc98e12 [2019-12-07 18:19:32,287 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:19:32,294 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:19:32,296 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:19:32,297 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:19:32,298 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:19:32,298 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9023d273-c228-4b06-ac95-5b9ee6916ca3/bin/uautomizer/../../sv-benchmarks/c/array-fpi/modpf.c [2019-12-07 18:19:32,335 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9023d273-c228-4b06-ac95-5b9ee6916ca3/bin/uautomizer/data/5ac5f6ef3/1a59b75a7ad5474082d91012665d9e23/FLAG3730e70f3 [2019-12-07 18:19:32,781 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:19:32,781 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9023d273-c228-4b06-ac95-5b9ee6916ca3/sv-benchmarks/c/array-fpi/modpf.c [2019-12-07 18:19:32,786 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9023d273-c228-4b06-ac95-5b9ee6916ca3/bin/uautomizer/data/5ac5f6ef3/1a59b75a7ad5474082d91012665d9e23/FLAG3730e70f3 [2019-12-07 18:19:32,794 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9023d273-c228-4b06-ac95-5b9ee6916ca3/bin/uautomizer/data/5ac5f6ef3/1a59b75a7ad5474082d91012665d9e23 [2019-12-07 18:19:32,796 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:19:32,797 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:19:32,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:19:32,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:19:32,800 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:19:32,801 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:19:32" (1/1) ... [2019-12-07 18:19:32,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@770086bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:32, skipping insertion in model container [2019-12-07 18:19:32,803 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:19:32" (1/1) ... [2019-12-07 18:19:32,807 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:19:32,818 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:19:32,956 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:19:32,963 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:19:32,977 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:19:32,987 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:19:32,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:32 WrapperNode [2019-12-07 18:19:32,987 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:19:32,988 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:19:32,988 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:19:32,988 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:19:32,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:32" (1/1) ... [2019-12-07 18:19:32,999 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:32" (1/1) ... [2019-12-07 18:19:33,012 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:19:33,012 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:19:33,012 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:19:33,012 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:19:33,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:32" (1/1) ... [2019-12-07 18:19:33,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:32" (1/1) ... [2019-12-07 18:19:33,019 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:32" (1/1) ... [2019-12-07 18:19:33,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:32" (1/1) ... [2019-12-07 18:19:33,023 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:32" (1/1) ... [2019-12-07 18:19:33,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:32" (1/1) ... [2019-12-07 18:19:33,026 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:32" (1/1) ... [2019-12-07 18:19:33,028 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:19:33,028 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:19:33,028 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:19:33,028 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:19:33,029 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9023d273-c228-4b06-ac95-5b9ee6916ca3/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 [2019-12-07 18:19:33,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:19:33,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 18:19:33,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 18:19:33,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:19:33,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:19:33,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 18:19:33,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:19:33,207 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:19:33,207 INFO L287 CfgBuilder]: Removed 9 assume(true) statements. [2019-12-07 18:19:33,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:19:33 BoogieIcfgContainer [2019-12-07 18:19:33,208 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:19:33,209 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:19:33,209 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:19:33,210 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:19:33,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:19:32" (1/3) ... [2019-12-07 18:19:33,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31ea276d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:19:33, skipping insertion in model container [2019-12-07 18:19:33,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:32" (2/3) ... [2019-12-07 18:19:33,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31ea276d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:19:33, skipping insertion in model container [2019-12-07 18:19:33,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:19:33" (3/3) ... [2019-12-07 18:19:33,212 INFO L109 eAbstractionObserver]: Analyzing ICFG modpf.c [2019-12-07 18:19:33,219 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:19:33,222 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 18:19:33,230 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 18:19:33,244 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:19:33,244 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:19:33,244 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:19:33,244 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:19:33,244 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:19:33,244 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:19:33,244 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:19:33,244 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:19:33,253 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-12-07 18:19:33,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 18:19:33,257 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:19:33,257 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:19:33,257 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:19:33,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:19:33,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1486647931, now seen corresponding path program 1 times [2019-12-07 18:19:33,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:19:33,267 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31897763] [2019-12-07 18:19:33,267 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:19:33,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:19:33,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:19:33,357 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31897763] [2019-12-07 18:19:33,357 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:19:33,357 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:19:33,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188222115] [2019-12-07 18:19:33,361 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 18:19:33,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:19:33,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 18:19:33,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:19:33,371 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2019-12-07 18:19:33,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:19:33,382 INFO L93 Difference]: Finished difference Result 33 states and 44 transitions. [2019-12-07 18:19:33,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:19:33,383 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-07 18:19:33,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:19:33,388 INFO L225 Difference]: With dead ends: 33 [2019-12-07 18:19:33,389 INFO L226 Difference]: Without dead ends: 15 [2019-12-07 18:19:33,390 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:19:33,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-12-07 18:19:33,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-12-07 18:19:33,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-07 18:19:33,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-12-07 18:19:33,411 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 10 [2019-12-07 18:19:33,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:19:33,411 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-12-07 18:19:33,412 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 18:19:33,412 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-12-07 18:19:33,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 18:19:33,412 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:19:33,412 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:19:33,412 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:19:33,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:19:33,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1772723449, now seen corresponding path program 1 times [2019-12-07 18:19:33,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:19:33,413 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109711116] [2019-12-07 18:19:33,413 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:19:33,424 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 18:19:33,424 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [900447701] [2019-12-07 18:19:33,425 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9023d273-c228-4b06-ac95-5b9ee6916ca3/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:19:33,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:19:33,462 INFO L264 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 18:19:33,465 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:19:33,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:19:33,488 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109711116] [2019-12-07 18:19:33,488 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 18:19:33,488 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900447701] [2019-12-07 18:19:33,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:19:33,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:19:33,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482892806] [2019-12-07 18:19:33,490 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:19:33,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:19:33,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:19:33,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:19:33,490 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 3 states. [2019-12-07 18:19:33,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:19:33,512 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2019-12-07 18:19:33,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:19:33,512 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-07 18:19:33,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:19:33,513 INFO L225 Difference]: With dead ends: 27 [2019-12-07 18:19:33,513 INFO L226 Difference]: Without dead ends: 17 [2019-12-07 18:19:33,514 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:19:33,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-07 18:19:33,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-12-07 18:19:33,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-07 18:19:33,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2019-12-07 18:19:33,516 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 10 [2019-12-07 18:19:33,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:19:33,516 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2019-12-07 18:19:33,517 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:19:33,517 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2019-12-07 18:19:33,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 18:19:33,517 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:19:33,517 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:19:33,718 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:19:33,718 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:19:33,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:19:33,719 INFO L82 PathProgramCache]: Analyzing trace with hash 827904471, now seen corresponding path program 1 times [2019-12-07 18:19:33,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:19:33,719 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780355310] [2019-12-07 18:19:33,720 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:19:33,744 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 18:19:33,745 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [100010818] [2019-12-07 18:19:33,745 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9023d273-c228-4b06-ac95-5b9ee6916ca3/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:19:33,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:19:33,801 INFO L264 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 18:19:33,803 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:19:33,815 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 18:19:33,815 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780355310] [2019-12-07 18:19:33,815 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 18:19:33,815 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100010818] [2019-12-07 18:19:33,815 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:19:33,815 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:19:33,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741532889] [2019-12-07 18:19:33,816 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:19:33,816 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:19:33,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:19:33,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:19:33,816 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 4 states. [2019-12-07 18:19:33,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:19:33,849 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2019-12-07 18:19:33,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:19:33,850 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-12-07 18:19:33,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:19:33,850 INFO L225 Difference]: With dead ends: 32 [2019-12-07 18:19:33,850 INFO L226 Difference]: Without dead ends: 25 [2019-12-07 18:19:33,851 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:19:33,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-12-07 18:19:33,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 17. [2019-12-07 18:19:33,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-07 18:19:33,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2019-12-07 18:19:33,853 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12 [2019-12-07 18:19:33,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:19:33,854 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2019-12-07 18:19:33,854 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:19:33,854 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2019-12-07 18:19:33,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 18:19:33,854 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:19:33,854 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:19:34,055 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:19:34,055 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:19:34,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:19:34,056 INFO L82 PathProgramCache]: Analyzing trace with hash -1602337035, now seen corresponding path program 1 times [2019-12-07 18:19:34,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:19:34,056 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525677167] [2019-12-07 18:19:34,057 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:19:34,080 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 18:19:34,081 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1146405434] [2019-12-07 18:19:34,081 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9023d273-c228-4b06-ac95-5b9ee6916ca3/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:19:34,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:19:34,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:19:34,164 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:19:34,164 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 18:19:34,364 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:19:34,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:19:34 BoogieIcfgContainer [2019-12-07 18:19:34,396 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:19:34,396 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:19:34,396 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:19:34,396 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:19:34,396 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:19:33" (3/4) ... [2019-12-07 18:19:34,398 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 18:19:34,429 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9023d273-c228-4b06-ac95-5b9ee6916ca3/bin/uautomizer/witness.graphml [2019-12-07 18:19:34,429 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:19:34,431 INFO L168 Benchmark]: Toolchain (without parser) took 1632.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 85.5 MB). Free memory was 944.7 MB in the beginning and 980.5 MB in the end (delta: -35.8 MB). Peak memory consumption was 49.6 MB. Max. memory is 11.5 GB. [2019-12-07 18:19:34,431 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:19:34,431 INFO L168 Benchmark]: CACSL2BoogieTranslator took 189.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 85.5 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -135.6 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. [2019-12-07 18:19:34,432 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.82 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:19:34,432 INFO L168 Benchmark]: Boogie Preprocessor took 16.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:19:34,433 INFO L168 Benchmark]: RCFGBuilder took 179.80 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:19:34,433 INFO L168 Benchmark]: TraceAbstraction took 1187.01 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 980.5 MB in the end (delta: 77.4 MB). Peak memory consumption was 77.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:19:34,433 INFO L168 Benchmark]: Witness Printer took 33.40 ms. Allocated memory is still 1.1 GB. Free memory is still 980.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:19:34,436 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 189.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 85.5 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -135.6 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.82 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 179.80 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1187.01 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 980.5 MB in the end (delta: 77.4 MB). Peak memory consumption was 77.4 MB. Max. memory is 11.5 GB. * Witness Printer took 33.40 ms. Allocated memory is still 1.1 GB. Free memory is still 980.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int N; VAL [N=0] [L18] N = __VERIFIER_nondet_int() [L19] COND FALSE !(N <= 0) [L22] int i; [L23] int sum[1]; [L24] int *a = malloc(sizeof(int)*N); [L26] sum[0] = 0 [L27] i=0 VAL [N=1] [L27] COND TRUE i