./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/AllInterval-009.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2d55de76-dad2-451e-883b-33d2ce1907f8/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2d55de76-dad2-451e-883b-33d2ce1907f8/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2d55de76-dad2-451e-883b-33d2ce1907f8/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2d55de76-dad2-451e-883b-33d2ce1907f8/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/xcsp/AllInterval-009.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2d55de76-dad2-451e-883b-33d2ce1907f8/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2d55de76-dad2-451e-883b-33d2ce1907f8/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d0ab2bae63538e529fb9b1962b62412646aecded ................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-a4ecdab [2020-11-30 01:55:38,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:55:38,970 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:55:39,050 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:55:39,051 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:55:39,057 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:55:39,060 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:55:39,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:55:39,068 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:55:39,075 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:55:39,077 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:55:39,079 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:55:39,080 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:55:39,085 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:55:39,087 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:55:39,089 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:55:39,090 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:55:39,095 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:55:39,100 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:55:39,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:55:39,112 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:55:39,114 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:55:39,116 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:55:39,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:55:39,129 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:55:39,130 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:55:39,130 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:55:39,133 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:55:39,134 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:55:39,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:55:39,136 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:55:39,137 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:55:39,140 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:55:39,141 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:55:39,143 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:55:39,143 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:55:39,144 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:55:39,145 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:55:39,145 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:55:39,146 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:55:39,147 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:55:39,150 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2d55de76-dad2-451e-883b-33d2ce1907f8/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 01:55:39,195 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:55:39,196 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:55:39,198 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 01:55:39,198 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 01:55:39,198 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 01:55:39,199 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 01:55:39,199 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 01:55:39,199 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 01:55:39,199 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 01:55:39,200 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 01:55:39,201 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 01:55:39,201 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 01:55:39,202 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 01:55:39,202 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 01:55:39,202 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 01:55:39,203 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:55:39,204 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:55:39,204 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:55:39,204 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:55:39,204 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:55:39,204 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:55:39,205 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:55:39,205 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:55:39,205 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 01:55:39,205 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:55:39,206 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:55:39,206 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:55:39,206 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:55:39,207 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:55:39,208 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:55:39,209 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:55:39,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:55:39,209 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:55:39,210 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:55:39,210 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:55:39,210 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 01:55:39,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:55:39,211 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:55:39,211 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:55:39,211 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:55:39,211 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_2d55de76-dad2-451e-883b-33d2ce1907f8/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2d55de76-dad2-451e-883b-33d2ce1907f8/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d0ab2bae63538e529fb9b1962b62412646aecded [2020-11-30 01:55:39,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:55:39,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:55:39,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:55:39,608 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:55:39,609 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:55:39,610 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2d55de76-dad2-451e-883b-33d2ce1907f8/bin/utaipan/../../sv-benchmarks/c/xcsp/AllInterval-009.c [2020-11-30 01:55:39,699 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2d55de76-dad2-451e-883b-33d2ce1907f8/bin/utaipan/data/3fdf18790/d8e5f8242eaa4ba486b600546bcdf71c/FLAGe7d0d262c [2020-11-30 01:55:40,243 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:55:40,243 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2d55de76-dad2-451e-883b-33d2ce1907f8/sv-benchmarks/c/xcsp/AllInterval-009.c [2020-11-30 01:55:40,251 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2d55de76-dad2-451e-883b-33d2ce1907f8/bin/utaipan/data/3fdf18790/d8e5f8242eaa4ba486b600546bcdf71c/FLAGe7d0d262c [2020-11-30 01:55:40,573 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2d55de76-dad2-451e-883b-33d2ce1907f8/bin/utaipan/data/3fdf18790/d8e5f8242eaa4ba486b600546bcdf71c [2020-11-30 01:55:40,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:55:40,577 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:55:40,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:55:40,579 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:55:40,583 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:55:40,584 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:55:40" (1/1) ... [2020-11-30 01:55:40,586 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@642b516f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:40, skipping insertion in model container [2020-11-30 01:55:40,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:55:40" (1/1) ... [2020-11-30 01:55:40,593 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:55:40,618 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:55:40,896 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:55:40,920 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:55:40,960 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:55:40,976 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:55:40,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:40 WrapperNode [2020-11-30 01:55:40,977 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:55:40,978 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:55:40,978 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:55:40,978 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:55:40,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:40" (1/1) ... [2020-11-30 01:55:40,998 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:40" (1/1) ... [2020-11-30 01:55:41,081 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:55:41,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:55:41,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:55:41,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:55:41,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:40" (1/1) ... [2020-11-30 01:55:41,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:40" (1/1) ... [2020-11-30 01:55:41,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:40" (1/1) ... [2020-11-30 01:55:41,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:40" (1/1) ... [2020-11-30 01:55:41,127 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:40" (1/1) ... [2020-11-30 01:55:41,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:40" (1/1) ... [2020-11-30 01:55:41,139 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:40" (1/1) ... [2020-11-30 01:55:41,146 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:55:41,147 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:55:41,147 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:55:41,147 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:55:41,163 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2d55de76-dad2-451e-883b-33d2ce1907f8/bin/utaipan/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 [2020-11-30 01:55:41,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:55:41,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:55:41,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:55:41,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:55:48,030 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:55:48,031 INFO L298 CfgBuilder]: Removed 218 assume(true) statements. [2020-11-30 01:55:48,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:55:48 BoogieIcfgContainer [2020-11-30 01:55:48,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:55:48,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:55:48,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:55:48,040 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:55:48,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:55:40" (1/3) ... [2020-11-30 01:55:48,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57d50a29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:55:48, skipping insertion in model container [2020-11-30 01:55:48,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:40" (2/3) ... [2020-11-30 01:55:48,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57d50a29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:55:48, skipping insertion in model container [2020-11-30 01:55:48,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:55:48" (3/3) ... [2020-11-30 01:55:48,044 INFO L111 eAbstractionObserver]: Analyzing ICFG AllInterval-009.c [2020-11-30 01:55:48,061 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:55:48,067 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:55:48,098 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 01:55:48,125 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:55:48,125 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:55:48,126 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:55:48,126 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:55:48,126 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:55:48,126 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:55:48,126 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:55:48,127 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:55:48,141 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-11-30 01:55:48,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-11-30 01:55:48,147 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:55:48,147 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2020-11-30 01:55:48,148 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:55:48,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:55:48,154 INFO L82 PathProgramCache]: Analyzing trace with hash 37442, now seen corresponding path program 1 times [2020-11-30 01:55:48,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:55:48,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926678456] [2020-11-30 01:55:48,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:56:00,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:56:00,726 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:56:05,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:56:05,320 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:56:05,358 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-30 01:56:05,359 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 01:56:05,360 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:56:05,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:56:05 BoogieIcfgContainer [2020-11-30 01:56:05,410 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:56:05,411 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:56:05,411 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:56:05,411 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:56:05,416 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:55:48" (3/4) ... [2020-11-30 01:56:05,419 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 01:56:05,530 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2d55de76-dad2-451e-883b-33d2ce1907f8/bin/utaipan/witness.graphml [2020-11-30 01:56:05,530 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:56:05,533 INFO L168 Benchmark]: Toolchain (without parser) took 24954.22 ms. Allocated memory was 90.2 MB in the beginning and 1.1 GB in the end (delta: 1.0 GB). Free memory was 56.0 MB in the beginning and 683.5 MB in the end (delta: -627.5 MB). Peak memory consumption was 405.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:56:05,533 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 90.2 MB. Free memory is still 72.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:56:05,534 INFO L168 Benchmark]: CACSL2BoogieTranslator took 397.89 ms. Allocated memory is still 90.2 MB. Free memory was 55.8 MB in the beginning and 65.1 MB in the end (delta: -9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:56:05,535 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.80 ms. Allocated memory is still 90.2 MB. Free memory was 65.1 MB in the beginning and 60.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:56:05,536 INFO L168 Benchmark]: Boogie Preprocessor took 58.56 ms. Allocated memory is still 90.2 MB. Free memory was 60.4 MB in the beginning and 57.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:56:05,538 INFO L168 Benchmark]: RCFGBuilder took 6886.61 ms. Allocated memory was 90.2 MB in the beginning and 134.2 MB in the end (delta: 44.0 MB). Free memory was 57.6 MB in the beginning and 45.3 MB in the end (delta: 12.4 MB). Peak memory consumption was 57.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:56:05,539 INFO L168 Benchmark]: TraceAbstraction took 17375.03 ms. Allocated memory was 134.2 MB in the beginning and 1.1 GB in the end (delta: 987.8 MB). Free memory was 44.2 MB in the beginning and 686.7 MB in the end (delta: -642.4 MB). Peak memory consumption was 436.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:56:05,548 INFO L168 Benchmark]: Witness Printer took 119.54 ms. Allocated memory is still 1.1 GB. Free memory was 686.7 MB in the beginning and 683.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:56:05,551 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 90.2 MB. Free memory is still 72.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 397.89 ms. Allocated memory is still 90.2 MB. Free memory was 55.8 MB in the beginning and 65.1 MB in the end (delta: -9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 108.80 ms. Allocated memory is still 90.2 MB. Free memory was 65.1 MB in the beginning and 60.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.56 ms. Allocated memory is still 90.2 MB. Free memory was 60.4 MB in the beginning and 57.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 6886.61 ms. Allocated memory was 90.2 MB in the beginning and 134.2 MB in the end (delta: 44.0 MB). Free memory was 57.6 MB in the beginning and 45.3 MB in the end (delta: 12.4 MB). Peak memory consumption was 57.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 17375.03 ms. Allocated memory was 134.2 MB in the beginning and 1.1 GB in the end (delta: 987.8 MB). Free memory was 44.2 MB in the beginning and 686.7 MB in the end (delta: -642.4 MB). Peak memory consumption was 436.5 MB. Max. memory is 16.1 GB. * Witness Printer took 119.54 ms. Allocated memory is still 1.1 GB. Free memory was 686.7 MB in the beginning and 683.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 17]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L24] int cond0; [L25] int dummy = 0; [L26] int N; [L27] int var0; [L28] var0 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L31] int var1; [L32] var1 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L35] int var2; [L36] var2 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L39] int var3; [L40] var3 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L43] int var4; [L44] var4 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L47] int var5; [L48] var5 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L51] int var6; [L52] var6 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L55] int var7; [L56] var7 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L59] int var8; [L60] var8 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L63] int var9; [L64] var9 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L67] int var10; [L68] var10 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L71] int var11; [L72] var11 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L75] int var12; [L76] var12 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L79] int var13; [L80] var13 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L83] int var14; [L84] var14 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L87] int var15; [L88] var15 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L91] int var16; [L92] var16 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L95] int myvar0 = 1; [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L160] int var_for_abs; [L161] var_for_abs = var0 - var1 [L162] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L162] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L164] var_for_abs = var1 - var2 [L165] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L165] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L167] var_for_abs = var2 - var3 [L168] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L168] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L170] var_for_abs = var3 - var4 [L171] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L171] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L173] var_for_abs = var4 - var5 [L174] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L174] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L176] var_for_abs = var5 - var6 [L177] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L177] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L179] var_for_abs = var6 - var7 [L180] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L180] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L182] var_for_abs = var7 - var8 [L183] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L183] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L17] __assert_fail("0", "AllInterval-009.c", 5, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 12.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...