./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/res1f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_89e9dd5c-c211-42e7-b54d-3c9f40061dd1/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_89e9dd5c-c211-42e7-b54d-3c9f40061dd1/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_89e9dd5c-c211-42e7-b54d-3c9f40061dd1/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_89e9dd5c-c211-42e7-b54d-3c9f40061dd1/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/res1f.c -s /tmp/vcloud-vcloud-master/worker/run_dir_89e9dd5c-c211-42e7-b54d-3c9f40061dd1/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_89e9dd5c-c211-42e7-b54d-3c9f40061dd1/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 5db13eecb169805db50191c4d332f3f213c27dc6 ......................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 19:45:31,075 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 19:45:31,077 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 19:45:31,087 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 19:45:31,088 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 19:45:31,089 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 19:45:31,090 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 19:45:31,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 19:45:31,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 19:45:31,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 19:45:31,096 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 19:45:31,097 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 19:45:31,098 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 19:45:31,099 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 19:45:31,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 19:45:31,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 19:45:31,101 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 19:45:31,102 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 19:45:31,104 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 19:45:31,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 19:45:31,108 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 19:45:31,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 19:45:31,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 19:45:31,111 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 19:45:31,113 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 19:45:31,114 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 19:45:31,114 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 19:45:31,115 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 19:45:31,115 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 19:45:31,116 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 19:45:31,117 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 19:45:31,117 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 19:45:31,118 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 19:45:31,119 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 19:45:31,120 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 19:45:31,120 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 19:45:31,121 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 19:45:31,121 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 19:45:31,121 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 19:45:31,122 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 19:45:31,123 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 19:45:31,123 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_89e9dd5c-c211-42e7-b54d-3c9f40061dd1/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 19:45:31,138 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 19:45:31,138 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 19:45:31,139 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 19:45:31,139 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 19:45:31,140 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 19:45:31,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 19:45:31,140 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 19:45:31,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 19:45:31,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 19:45:31,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 19:45:31,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 19:45:31,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 19:45:31,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 19:45:31,142 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 19:45:31,142 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 19:45:31,142 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 19:45:31,143 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 19:45:31,143 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 19:45:31,143 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 19:45:31,143 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 19:45:31,144 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 19:45:31,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 19:45:31,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 19:45:31,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 19:45:31,145 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 19:45:31,145 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 19:45:31,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 19:45:31,145 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 19:45:31,146 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_89e9dd5c-c211-42e7-b54d-3c9f40061dd1/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 -> 5db13eecb169805db50191c4d332f3f213c27dc6 [2019-11-15 19:45:31,171 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 19:45:31,181 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 19:45:31,184 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 19:45:31,185 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 19:45:31,185 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 19:45:31,186 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_89e9dd5c-c211-42e7-b54d-3c9f40061dd1/bin/uautomizer/../../sv-benchmarks/c/array-fpi/res1f.c [2019-11-15 19:45:31,239 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_89e9dd5c-c211-42e7-b54d-3c9f40061dd1/bin/uautomizer/data/479be9376/d858e94fef8841a18bef43b8dbe9ba15/FLAG5ba1a08c6 [2019-11-15 19:45:31,621 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 19:45:31,622 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_89e9dd5c-c211-42e7-b54d-3c9f40061dd1/sv-benchmarks/c/array-fpi/res1f.c [2019-11-15 19:45:31,629 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_89e9dd5c-c211-42e7-b54d-3c9f40061dd1/bin/uautomizer/data/479be9376/d858e94fef8841a18bef43b8dbe9ba15/FLAG5ba1a08c6 [2019-11-15 19:45:31,641 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_89e9dd5c-c211-42e7-b54d-3c9f40061dd1/bin/uautomizer/data/479be9376/d858e94fef8841a18bef43b8dbe9ba15 [2019-11-15 19:45:31,644 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 19:45:31,645 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 19:45:31,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 19:45:31,647 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 19:45:31,650 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 19:45:31,651 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 07:45:31" (1/1) ... [2019-11-15 19:45:31,653 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10a09db2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:45:31, skipping insertion in model container [2019-11-15 19:45:31,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 07:45:31" (1/1) ... [2019-11-15 19:45:31,660 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 19:45:31,680 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 19:45:31,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 19:45:31,888 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 19:45:31,908 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 19:45:31,922 INFO L192 MainTranslator]: Completed translation [2019-11-15 19:45:31,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:45:31 WrapperNode [2019-11-15 19:45:31,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 19:45:31,923 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 19:45:31,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 19:45:31,924 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 19:45:31,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:45:31" (1/1) ... [2019-11-15 19:45:31,939 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:45:31" (1/1) ... [2019-11-15 19:45:31,959 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 19:45:31,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 19:45:31,960 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 19:45:31,960 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 19:45:31,967 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:45:31" (1/1) ... [2019-11-15 19:45:31,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:45:31" (1/1) ... [2019-11-15 19:45:31,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:45:31" (1/1) ... [2019-11-15 19:45:31,970 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:45:31" (1/1) ... [2019-11-15 19:45:31,976 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:45:31" (1/1) ... [2019-11-15 19:45:31,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:45:31" (1/1) ... [2019-11-15 19:45:31,982 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:45:31" (1/1) ... [2019-11-15 19:45:31,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 19:45:31,984 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 19:45:31,984 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 19:45:31,985 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 19:45:31,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:45:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89e9dd5c-c211-42e7-b54d-3c9f40061dd1/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 19:45:32,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 19:45:32,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 19:45:32,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-15 19:45:32,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 19:45:32,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 19:45:32,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 19:45:32,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 19:45:32,333 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 19:45:32,333 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-15 19:45:32,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 07:45:32 BoogieIcfgContainer [2019-11-15 19:45:32,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 19:45:32,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 19:45:32,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 19:45:32,339 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 19:45:32,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 07:45:31" (1/3) ... [2019-11-15 19:45:32,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ca348e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 07:45:32, skipping insertion in model container [2019-11-15 19:45:32,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:45:31" (2/3) ... [2019-11-15 19:45:32,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ca348e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 07:45:32, skipping insertion in model container [2019-11-15 19:45:32,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 07:45:32" (3/3) ... [2019-11-15 19:45:32,343 INFO L109 eAbstractionObserver]: Analyzing ICFG res1f.c [2019-11-15 19:45:32,352 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 19:45:32,359 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 19:45:32,370 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 19:45:32,396 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 19:45:32,396 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 19:45:32,396 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 19:45:32,396 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 19:45:32,397 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 19:45:32,397 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 19:45:32,397 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 19:45:32,397 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 19:45:32,414 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-11-15 19:45:32,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-15 19:45:32,422 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 19:45:32,423 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 19:45:32,425 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 19:45:32,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:45:32,430 INFO L82 PathProgramCache]: Analyzing trace with hash 920027386, now seen corresponding path program 1 times [2019-11-15 19:45:32,441 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 19:45:32,441 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740378824] [2019-11-15 19:45:32,442 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:45:32,442 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:45:32,442 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 19:45:32,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 19:45:32,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 19:45:32,603 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740378824] [2019-11-15 19:45:32,605 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 19:45:32,605 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 19:45:32,606 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423462110] [2019-11-15 19:45:32,609 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 19:45:32,610 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 19:45:32,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 19:45:32,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 19:45:32,625 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2019-11-15 19:45:32,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 19:45:32,640 INFO L93 Difference]: Finished difference Result 39 states and 54 transitions. [2019-11-15 19:45:32,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 19:45:32,642 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-11-15 19:45:32,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 19:45:32,648 INFO L225 Difference]: With dead ends: 39 [2019-11-15 19:45:32,649 INFO L226 Difference]: Without dead ends: 18 [2019-11-15 19:45:32,651 INFO L600 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 [2019-11-15 19:45:32,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-15 19:45:32,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-15 19:45:32,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-15 19:45:32,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2019-11-15 19:45:32,689 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 13 [2019-11-15 19:45:32,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 19:45:32,689 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-11-15 19:45:32,690 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 19:45:32,690 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2019-11-15 19:45:32,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-15 19:45:32,690 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 19:45:32,691 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 19:45:32,691 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 19:45:32,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:45:32,691 INFO L82 PathProgramCache]: Analyzing trace with hash 232180998, now seen corresponding path program 1 times [2019-11-15 19:45:32,691 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 19:45:32,691 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21063961] [2019-11-15 19:45:32,692 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:45:32,692 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:45:32,692 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 19:45:32,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 19:45:32,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 19:45:32,790 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21063961] [2019-11-15 19:45:32,790 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 19:45:32,790 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 19:45:32,790 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532413524] [2019-11-15 19:45:32,792 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 19:45:32,792 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 19:45:32,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 19:45:32,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 19:45:32,793 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand 4 states. [2019-11-15 19:45:32,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 19:45:32,878 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2019-11-15 19:45:32,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 19:45:32,879 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-11-15 19:45:32,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 19:45:32,880 INFO L225 Difference]: With dead ends: 25 [2019-11-15 19:45:32,880 INFO L226 Difference]: Without dead ends: 21 [2019-11-15 19:45:32,881 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-15 19:45:32,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-15 19:45:32,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-15 19:45:32,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-15 19:45:32,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2019-11-15 19:45:32,886 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 13 [2019-11-15 19:45:32,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 19:45:32,886 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2019-11-15 19:45:32,886 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 19:45:32,886 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2019-11-15 19:45:32,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-15 19:45:32,887 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 19:45:32,887 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 19:45:32,887 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 19:45:32,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:45:32,888 INFO L82 PathProgramCache]: Analyzing trace with hash -159126488, now seen corresponding path program 1 times [2019-11-15 19:45:32,888 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 19:45:32,889 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791596363] [2019-11-15 19:45:32,889 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:45:32,889 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:45:32,889 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 19:45:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 19:45:32,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-15 19:45:32,979 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791596363] [2019-11-15 19:45:32,979 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 19:45:32,979 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 19:45:32,979 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221070605] [2019-11-15 19:45:32,980 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 19:45:32,980 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 19:45:32,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 19:45:32,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 19:45:32,981 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 3 states. [2019-11-15 19:45:33,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 19:45:33,037 INFO L93 Difference]: Finished difference Result 39 states and 47 transitions. [2019-11-15 19:45:33,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 19:45:33,037 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-11-15 19:45:33,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 19:45:33,038 INFO L225 Difference]: With dead ends: 39 [2019-11-15 19:45:33,038 INFO L226 Difference]: Without dead ends: 23 [2019-11-15 19:45:33,039 INFO L600 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 [2019-11-15 19:45:33,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-15 19:45:33,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2019-11-15 19:45:33,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-15 19:45:33,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2019-11-15 19:45:33,043 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 15 [2019-11-15 19:45:33,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 19:45:33,043 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2019-11-15 19:45:33,043 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 19:45:33,043 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2019-11-15 19:45:33,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-15 19:45:33,044 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 19:45:33,044 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 19:45:33,044 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 19:45:33,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:45:33,045 INFO L82 PathProgramCache]: Analyzing trace with hash -620162550, now seen corresponding path program 1 times [2019-11-15 19:45:33,045 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 19:45:33,045 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247490950] [2019-11-15 19:45:33,045 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:45:33,045 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:45:33,046 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 19:45:33,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 19:45:33,099 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-15 19:45:33,099 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247490950] [2019-11-15 19:45:33,100 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 19:45:33,100 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 19:45:33,100 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583920839] [2019-11-15 19:45:33,100 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 19:45:33,100 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 19:45:33,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 19:45:33,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 19:45:33,101 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand 4 states. [2019-11-15 19:45:33,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 19:45:33,249 INFO L93 Difference]: Finished difference Result 39 states and 47 transitions. [2019-11-15 19:45:33,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 19:45:33,249 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-11-15 19:45:33,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 19:45:33,250 INFO L225 Difference]: With dead ends: 39 [2019-11-15 19:45:33,250 INFO L226 Difference]: Without dead ends: 26 [2019-11-15 19:45:33,251 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 19:45:33,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-15 19:45:33,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 22. [2019-11-15 19:45:33,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-15 19:45:33,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2019-11-15 19:45:33,255 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 17 [2019-11-15 19:45:33,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 19:45:33,255 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2019-11-15 19:45:33,255 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 19:45:33,255 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2019-11-15 19:45:33,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-15 19:45:33,256 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 19:45:33,256 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 19:45:33,256 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 19:45:33,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:45:33,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1949747954, now seen corresponding path program 1 times [2019-11-15 19:45:33,257 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 19:45:33,257 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065479509] [2019-11-15 19:45:33,257 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:45:33,257 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:45:33,258 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 19:45:33,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 19:45:33,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 19:45:33,393 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 19:45:33,393 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 19:45:33,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 07:45:33 BoogieIcfgContainer [2019-11-15 19:45:33,428 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 19:45:33,429 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 19:45:33,429 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 19:45:33,429 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 19:45:33,429 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 07:45:32" (3/4) ... [2019-11-15 19:45:33,431 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-15 19:45:33,484 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_89e9dd5c-c211-42e7-b54d-3c9f40061dd1/bin/uautomizer/witness.graphml [2019-11-15 19:45:33,484 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 19:45:33,486 INFO L168 Benchmark]: Toolchain (without parser) took 1840.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 943.4 MB in the beginning and 1.0 GB in the end (delta: -89.0 MB). Peak memory consumption was 42.0 MB. Max. memory is 11.5 GB. [2019-11-15 19:45:33,487 INFO L168 Benchmark]: CDTParser took 0.22 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. [2019-11-15 19:45:33,487 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -182.6 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-15 19:45:33,488 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.87 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. [2019-11-15 19:45:33,488 INFO L168 Benchmark]: Boogie Preprocessor took 24.51 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 19:45:33,489 INFO L168 Benchmark]: RCFGBuilder took 350.46 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-15 19:45:33,489 INFO L168 Benchmark]: TraceAbstraction took 1092.70 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: 64.4 MB). Peak memory consumption was 64.4 MB. Max. memory is 11.5 GB. [2019-11-15 19:45:33,490 INFO L168 Benchmark]: Witness Printer took 55.94 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 19:45:33,492 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 276.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -182.6 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.87 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.51 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 350.46 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1092.70 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: 64.4 MB). Peak memory consumption was 64.4 MB. Max. memory is 11.5 GB. * Witness Printer took 55.94 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: 5.4 MB). Peak memory consumption was 5.4 MB. 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] long long sum[1]; [L24] int *a = malloc(sizeof(int)*N); [L25] int *b = malloc(sizeof(int)*N); [L27] sum[0] = 1 [L28] i=0 VAL [N=1] [L28] COND TRUE i