./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/AllInterval-006.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_1aa269f6-d07c-4a09-b5f9-ea52ada28003/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1aa269f6-d07c-4a09-b5f9-ea52ada28003/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1aa269f6-d07c-4a09-b5f9-ea52ada28003/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1aa269f6-d07c-4a09-b5f9-ea52ada28003/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/AllInterval-006.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1aa269f6-d07c-4a09-b5f9-ea52ada28003/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1aa269f6-d07c-4a09-b5f9-ea52ada28003/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 50c5e818ba05d4e8fa241dc9220a809d016175eb .......................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2020-11-29 19:45:51,614 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:45:51,617 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:45:51,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:45:51,683 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:45:51,689 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:45:51,692 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:45:51,702 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:45:51,705 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:45:51,718 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:45:51,720 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:45:51,723 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:45:51,723 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:45:51,728 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:45:51,730 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:45:51,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:45:51,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:45:51,739 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:45:51,743 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:45:51,753 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:45:51,755 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:45:51,758 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:45:51,760 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:45:51,762 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:45:51,773 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:45:51,774 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:45:51,775 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:45:51,778 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:45:51,778 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:45:51,780 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:45:51,781 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:45:51,783 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:45:51,785 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:45:51,787 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:45:51,789 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:45:51,789 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:45:51,790 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:45:51,791 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:45:51,791 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:45:51,793 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:45:51,794 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:45:51,797 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1aa269f6-d07c-4a09-b5f9-ea52ada28003/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 19:45:51,858 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:45:51,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:45:51,862 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:45:51,863 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:45:51,863 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:45:51,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:45:51,864 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:45:51,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:45:51,865 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:45:51,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:45:51,867 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:45:51,868 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:45:51,868 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:45:51,869 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:45:51,869 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:45:51,869 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:45:51,870 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:45:51,870 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:45:51,871 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:45:51,871 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:45:51,871 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:45:51,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:45:51,872 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:45:51,873 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:45:51,873 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:45:51,873 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:45:51,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:45:51,874 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:45:51,875 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:45:51,875 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_1aa269f6-d07c-4a09-b5f9-ea52ada28003/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1aa269f6-d07c-4a09-b5f9-ea52ada28003/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50c5e818ba05d4e8fa241dc9220a809d016175eb [2020-11-29 19:45:52,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:45:52,309 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:45:52,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:45:52,314 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:45:52,316 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:45:52,317 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1aa269f6-d07c-4a09-b5f9-ea52ada28003/bin/uautomizer/../../sv-benchmarks/c/xcsp/AllInterval-006.c [2020-11-29 19:45:52,436 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1aa269f6-d07c-4a09-b5f9-ea52ada28003/bin/uautomizer/data/dd3998d3b/ec6168d67a4f4c1aa582e790fde83101/FLAGe4d45fbcb [2020-11-29 19:45:53,176 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:45:53,177 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1aa269f6-d07c-4a09-b5f9-ea52ada28003/sv-benchmarks/c/xcsp/AllInterval-006.c [2020-11-29 19:45:53,187 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1aa269f6-d07c-4a09-b5f9-ea52ada28003/bin/uautomizer/data/dd3998d3b/ec6168d67a4f4c1aa582e790fde83101/FLAGe4d45fbcb [2020-11-29 19:45:53,510 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1aa269f6-d07c-4a09-b5f9-ea52ada28003/bin/uautomizer/data/dd3998d3b/ec6168d67a4f4c1aa582e790fde83101 [2020-11-29 19:45:53,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:45:53,516 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:45:53,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:45:53,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:45:53,539 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:45:53,540 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:45:53" (1/1) ... [2020-11-29 19:45:53,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@488784f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:45:53, skipping insertion in model container [2020-11-29 19:45:53,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:45:53" (1/1) ... [2020-11-29 19:45:53,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:45:53,603 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:45:53,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:45:53,947 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:45:54,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:45:54,051 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:45:54,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:45:54 WrapperNode [2020-11-29 19:45:54,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:45:54,056 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:45:54,056 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:45:54,056 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:45:54,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:45:54" (1/1) ... [2020-11-29 19:45:54,097 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:45:54" (1/1) ... [2020-11-29 19:45:54,165 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:45:54,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:45:54,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:45:54,174 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:45:54,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:45:54" (1/1) ... [2020-11-29 19:45:54,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:45:54" (1/1) ... [2020-11-29 19:45:54,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:45:54" (1/1) ... [2020-11-29 19:45:54,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:45:54" (1/1) ... [2020-11-29 19:45:54,219 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:45:54" (1/1) ... [2020-11-29 19:45:54,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:45:54" (1/1) ... [2020-11-29 19:45:54,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:45:54" (1/1) ... [2020-11-29 19:45:54,253 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:45:54,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:45:54,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:45:54,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:45:54,271 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:45:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1aa269f6-d07c-4a09-b5f9-ea52ada28003/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 [2020-11-29 19:45:54,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:45:54,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:45:54,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:45:54,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:45:55,640 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:45:55,641 INFO L298 CfgBuilder]: Removed 110 assume(true) statements. [2020-11-29 19:45:55,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:45:55 BoogieIcfgContainer [2020-11-29 19:45:55,643 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:45:55,646 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 19:45:55,646 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 19:45:55,651 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 19:45:55,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:45:53" (1/3) ... [2020-11-29 19:45:55,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ca4707f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:45:55, skipping insertion in model container [2020-11-29 19:45:55,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:45:54" (2/3) ... [2020-11-29 19:45:55,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ca4707f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:45:55, skipping insertion in model container [2020-11-29 19:45:55,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:45:55" (3/3) ... [2020-11-29 19:45:55,657 INFO L111 eAbstractionObserver]: Analyzing ICFG AllInterval-006.c [2020-11-29 19:45:55,673 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 19:45:55,680 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 19:45:55,693 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 19:45:55,730 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 19:45:55,731 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 19:45:55,731 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 19:45:55,731 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:45:55,731 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:45:55,732 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 19:45:55,732 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:45:55,732 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 19:45:55,759 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states. [2020-11-29 19:45:55,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-11-29 19:45:55,772 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:45:55,774 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:45:55,775 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:45:55,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:45:55,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1389823289, now seen corresponding path program 1 times [2020-11-29 19:45:55,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:45:55,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760001910] [2020-11-29 19:45:55,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:45:55,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:45:56,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:45:56,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760001910] [2020-11-29 19:45:56,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:45:56,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:45:56,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455509777] [2020-11-29 19:45:56,170 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 19:45:56,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:45:56,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 19:45:56,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 19:45:56,198 INFO L87 Difference]: Start difference. First operand 121 states. Second operand 2 states. [2020-11-29 19:45:56,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:45:56,254 INFO L93 Difference]: Finished difference Result 235 states and 347 transitions. [2020-11-29 19:45:56,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 19:45:56,257 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 116 [2020-11-29 19:45:56,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:45:56,273 INFO L225 Difference]: With dead ends: 235 [2020-11-29 19:45:56,274 INFO L226 Difference]: Without dead ends: 117 [2020-11-29 19:45:56,279 INFO L677 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 [2020-11-29 19:45:56,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-11-29 19:45:56,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2020-11-29 19:45:56,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-11-29 19:45:56,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 121 transitions. [2020-11-29 19:45:56,365 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 121 transitions. Word has length 116 [2020-11-29 19:45:56,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:45:56,366 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 121 transitions. [2020-11-29 19:45:56,366 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 19:45:56,367 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 121 transitions. [2020-11-29 19:45:56,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-11-29 19:45:56,374 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:45:56,375 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:45:56,375 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 19:45:56,375 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:45:56,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:45:56,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1985819869, now seen corresponding path program 1 times [2020-11-29 19:45:56,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:45:56,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141499478] [2020-11-29 19:45:56,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:45:57,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:45:58,062 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2020-11-29 19:45:58,312 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 22 [2020-11-29 19:45:58,806 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2020-11-29 19:45:59,246 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 38 [2020-11-29 19:45:59,747 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2020-11-29 19:46:00,109 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-11-29 19:46:00,633 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 43 [2020-11-29 19:46:01,093 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2020-11-29 19:46:01,509 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2020-11-29 19:46:01,950 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2020-11-29 19:46:02,306 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 39 [2020-11-29 19:46:02,598 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 39 [2020-11-29 19:46:03,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:46:03,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141499478] [2020-11-29 19:46:03,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:46:03,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2020-11-29 19:46:03,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256154957] [2020-11-29 19:46:03,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-11-29 19:46:03,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:46:03,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-11-29 19:46:03,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=719, Unknown=0, NotChecked=0, Total=812 [2020-11-29 19:46:03,427 INFO L87 Difference]: Start difference. First operand 117 states and 121 transitions. Second operand 29 states. [2020-11-29 19:46:04,351 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 32 [2020-11-29 19:46:04,504 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 28 [2020-11-29 19:46:05,154 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 38 [2020-11-29 19:46:05,430 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 31 [2020-11-29 19:46:05,590 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 37 [2020-11-29 19:46:05,857 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 30 [2020-11-29 19:46:06,190 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 37 [2020-11-29 19:46:06,480 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2020-11-29 19:46:06,817 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2020-11-29 19:46:07,189 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2020-11-29 19:46:07,465 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2020-11-29 19:46:07,728 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2020-11-29 19:46:07,935 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-11-29 19:46:08,202 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-11-29 19:46:08,457 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-11-29 19:46:08,655 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2020-11-29 19:46:08,856 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-11-29 19:46:09,101 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-11-29 19:46:09,337 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-11-29 19:46:09,583 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-11-29 19:46:09,789 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-11-29 19:46:09,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:46:09,849 INFO L93 Difference]: Finished difference Result 153 states and 160 transitions. [2020-11-29 19:46:09,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-11-29 19:46:09,854 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 116 [2020-11-29 19:46:09,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:46:09,857 INFO L225 Difference]: With dead ends: 153 [2020-11-29 19:46:09,858 INFO L226 Difference]: Without dead ends: 145 [2020-11-29 19:46:09,861 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=831, Invalid=2249, Unknown=0, NotChecked=0, Total=3080 [2020-11-29 19:46:09,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-11-29 19:46:09,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 125. [2020-11-29 19:46:09,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-11-29 19:46:09,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 130 transitions. [2020-11-29 19:46:09,877 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 130 transitions. Word has length 116 [2020-11-29 19:46:09,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:46:09,879 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 130 transitions. [2020-11-29 19:46:09,879 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-11-29 19:46:09,879 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 130 transitions. [2020-11-29 19:46:09,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-11-29 19:46:09,882 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:46:09,883 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:46:09,883 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 19:46:09,883 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:46:09,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:46:09,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1176473243, now seen corresponding path program 1 times [2020-11-29 19:46:09,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:46:09,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594268479] [2020-11-29 19:46:09,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:46:10,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:46:10,505 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:46:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:46:10,964 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:46:11,043 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:46:11,043 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 19:46:11,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 19:46:11,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:46:11 BoogieIcfgContainer [2020-11-29 19:46:11,198 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 19:46:11,199 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:46:11,199 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:46:11,200 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:46:11,200 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:45:55" (3/4) ... [2020-11-29 19:46:11,204 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 19:46:11,318 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1aa269f6-d07c-4a09-b5f9-ea52ada28003/bin/uautomizer/witness.graphml [2020-11-29 19:46:11,318 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:46:11,320 INFO L168 Benchmark]: Toolchain (without parser) took 17803.87 ms. Allocated memory was 92.3 MB in the beginning and 188.7 MB in the end (delta: 96.5 MB). Free memory was 63.3 MB in the beginning and 130.4 MB in the end (delta: -67.1 MB). Peak memory consumption was 29.3 MB. Max. memory is 16.1 GB. [2020-11-29 19:46:11,324 INFO L168 Benchmark]: CDTParser took 1.77 ms. Allocated memory is still 92.3 MB. Free memory is still 50.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:46:11,324 INFO L168 Benchmark]: CACSL2BoogieTranslator took 536.31 ms. Allocated memory is still 92.3 MB. Free memory was 63.1 MB in the beginning and 67.1 MB in the end (delta: -4.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:46:11,325 INFO L168 Benchmark]: Boogie Procedure Inliner took 114.40 ms. Allocated memory is still 92.3 MB. Free memory was 67.1 MB in the beginning and 64.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:46:11,325 INFO L168 Benchmark]: Boogie Preprocessor took 96.61 ms. Allocated memory is still 92.3 MB. Free memory was 64.4 MB in the beginning and 62.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:46:11,326 INFO L168 Benchmark]: RCFGBuilder took 1375.04 ms. Allocated memory was 92.3 MB in the beginning and 125.8 MB in the end (delta: 33.6 MB). Free memory was 62.3 MB in the beginning and 88.3 MB in the end (delta: -25.9 MB). Peak memory consumption was 23.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:46:11,327 INFO L168 Benchmark]: TraceAbstraction took 15552.66 ms. Allocated memory was 125.8 MB in the beginning and 188.7 MB in the end (delta: 62.9 MB). Free memory was 87.9 MB in the beginning and 137.8 MB in the end (delta: -49.8 MB). Peak memory consumption was 99.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:46:11,327 INFO L168 Benchmark]: Witness Printer took 119.21 ms. Allocated memory is still 188.7 MB. Free memory was 137.8 MB in the beginning and 130.4 MB in the end (delta: 7.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-29 19:46:11,334 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.77 ms. Allocated memory is still 92.3 MB. Free memory is still 50.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 536.31 ms. Allocated memory is still 92.3 MB. Free memory was 63.1 MB in the beginning and 67.1 MB in the end (delta: -4.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 114.40 ms. Allocated memory is still 92.3 MB. Free memory was 67.1 MB in the beginning and 64.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 96.61 ms. Allocated memory is still 92.3 MB. Free memory was 64.4 MB in the beginning and 62.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1375.04 ms. Allocated memory was 92.3 MB in the beginning and 125.8 MB in the end (delta: 33.6 MB). Free memory was 62.3 MB in the beginning and 88.3 MB in the end (delta: -25.9 MB). Peak memory consumption was 23.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 15552.66 ms. Allocated memory was 125.8 MB in the beginning and 188.7 MB in the end (delta: 62.9 MB). Free memory was 87.9 MB in the beginning and 137.8 MB in the end (delta: -49.8 MB). Peak memory consumption was 99.1 MB. Max. memory is 16.1 GB. * Witness Printer took 119.21 ms. Allocated memory is still 188.7 MB. Free memory was 137.8 MB in the beginning and 130.4 MB in the end (delta: 7.3 MB). Peak memory consumption was 6.3 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 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) [L97] int var_for_abs; [L98] var_for_abs = var0 - var1 [L99] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L99] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L101] var_for_abs = var1 - var2 [L102] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L102] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L104] var_for_abs = var2 - var3 [L105] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L105] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L107] var_for_abs = var3 - var4 [L108] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L108] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L110] var_for_abs = var4 - var5 [L111] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L111] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L17] __assert_fail("0", "AllInterval-006.c", 5, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 121 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 196 SDtfs, 1536 SDslu, 418 SDs, 0 SdLazy, 788 SolverSat, 149 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 10.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 20 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 348 NumberOfCodeBlocks, 348 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 230 ConstructedInterpolants, 0 QuantifiedInterpolants, 780505 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...