./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_9bc8b8df-9ff9-42c7-bf74-a1569b4b5fdf/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9bc8b8df-9ff9-42c7-bf74-a1569b4b5fdf/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9bc8b8df-9ff9-42c7-bf74-a1569b4b5fdf/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9bc8b8df-9ff9-42c7-bf74-a1569b4b5fdf/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/AllInterval-006.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9bc8b8df-9ff9-42c7-bf74-a1569b4b5fdf/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9bc8b8df-9ff9-42c7-bf74-a1569b4b5fdf/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 [2020-11-28 03:00:40,190 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:00:40,199 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:00:40,252 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:00:40,253 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:00:40,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:00:40,264 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:00:40,272 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:00:40,277 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:00:40,278 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:00:40,279 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:00:40,281 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:00:40,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:00:40,283 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:00:40,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:00:40,286 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:00:40,287 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:00:40,289 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:00:40,291 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:00:40,294 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:00:40,296 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:00:40,298 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:00:40,299 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:00:40,301 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:00:40,305 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:00:40,305 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:00:40,306 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:00:40,307 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:00:40,308 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:00:40,309 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:00:40,310 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:00:40,311 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:00:40,312 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:00:40,313 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:00:40,314 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:00:40,315 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:00:40,316 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:00:40,316 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:00:40,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:00:40,317 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:00:40,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:00:40,319 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9bc8b8df-9ff9-42c7-bf74-a1569b4b5fdf/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:00:40,349 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:00:40,349 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:00:40,350 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:00:40,351 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:00:40,351 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:00:40,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:00:40,352 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:00:40,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:00:40,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:00:40,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:00:40,353 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:00:40,353 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:00:40,353 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:00:40,353 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:00:40,354 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:00:40,354 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:00:40,354 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:00:40,355 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:00:40,355 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:00:40,355 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:00:40,355 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:00:40,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:00:40,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:00:40,356 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:00:40,356 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:00:40,357 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:00:40,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:00:40,357 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:00:40,357 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:00:40,358 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_9bc8b8df-9ff9-42c7-bf74-a1569b4b5fdf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9bc8b8df-9ff9-42c7-bf74-a1569b4b5fdf/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50c5e818ba05d4e8fa241dc9220a809d016175eb [2020-11-28 03:00:40,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:00:40,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:00:40,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:00:40,684 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:00:40,685 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:00:40,686 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9bc8b8df-9ff9-42c7-bf74-a1569b4b5fdf/bin/uautomizer/../../sv-benchmarks/c/xcsp/AllInterval-006.c [2020-11-28 03:00:40,814 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9bc8b8df-9ff9-42c7-bf74-a1569b4b5fdf/bin/uautomizer/data/0e479a4a6/2de67450ea9b423fac20b82e0e68a6ca/FLAG3973db029 [2020-11-28 03:00:41,354 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:00:41,355 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9bc8b8df-9ff9-42c7-bf74-a1569b4b5fdf/sv-benchmarks/c/xcsp/AllInterval-006.c [2020-11-28 03:00:41,363 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9bc8b8df-9ff9-42c7-bf74-a1569b4b5fdf/bin/uautomizer/data/0e479a4a6/2de67450ea9b423fac20b82e0e68a6ca/FLAG3973db029 [2020-11-28 03:00:41,724 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9bc8b8df-9ff9-42c7-bf74-a1569b4b5fdf/bin/uautomizer/data/0e479a4a6/2de67450ea9b423fac20b82e0e68a6ca [2020-11-28 03:00:41,731 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:00:41,732 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:00:41,734 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:00:41,735 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:00:41,738 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:00:41,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:00:41" (1/1) ... [2020-11-28 03:00:41,741 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76025e24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:41, skipping insertion in model container [2020-11-28 03:00:41,741 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:00:41" (1/1) ... [2020-11-28 03:00:41,749 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:00:41,773 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:00:41,960 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:00:41,971 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:00:42,007 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:00:42,024 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:00:42,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:42 WrapperNode [2020-11-28 03:00:42,025 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:00:42,027 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:00:42,027 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:00:42,027 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:00:42,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:42" (1/1) ... [2020-11-28 03:00:42,069 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:42" (1/1) ... [2020-11-28 03:00:42,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:00:42,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:00:42,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:00:42,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:00:42,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:42" (1/1) ... [2020-11-28 03:00:42,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:42" (1/1) ... [2020-11-28 03:00:42,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:42" (1/1) ... [2020-11-28 03:00:42,143 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:42" (1/1) ... [2020-11-28 03:00:42,165 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:42" (1/1) ... [2020-11-28 03:00:42,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:42" (1/1) ... [2020-11-28 03:00:42,173 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:42" (1/1) ... [2020-11-28 03:00:42,190 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:00:42,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:00:42,191 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:00:42,200 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:00:42,202 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9bc8b8df-9ff9-42c7-bf74-a1569b4b5fdf/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 [2020-11-28 03:00:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:00:42,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:00:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:00:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:00:42,952 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:00:42,952 INFO L298 CfgBuilder]: Removed 110 assume(true) statements. [2020-11-28 03:00:42,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:00:42 BoogieIcfgContainer [2020-11-28 03:00:42,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:00:42,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:00:42,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:00:42,961 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:00:42,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:00:41" (1/3) ... [2020-11-28 03:00:42,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a6b120c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:00:42, skipping insertion in model container [2020-11-28 03:00:42,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:42" (2/3) ... [2020-11-28 03:00:42,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a6b120c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:00:42, skipping insertion in model container [2020-11-28 03:00:42,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:00:42" (3/3) ... [2020-11-28 03:00:42,965 INFO L111 eAbstractionObserver]: Analyzing ICFG AllInterval-006.c [2020-11-28 03:00:42,977 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:00:42,982 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:00:42,996 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:00:43,036 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:00:43,036 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:00:43,036 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:00:43,037 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:00:43,037 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:00:43,037 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:00:43,037 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:00:43,037 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:00:43,064 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states. [2020-11-28 03:00:43,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-11-28 03:00:43,082 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:00:43,083 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] [2020-11-28 03:00:43,083 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:00:43,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:00:43,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1389823289, now seen corresponding path program 1 times [2020-11-28 03:00:43,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:00:43,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038840852] [2020-11-28 03:00:43,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:00:43,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:43,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:00:43,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038840852] [2020-11-28 03:00:43,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:00:43,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:00:43,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199286317] [2020-11-28 03:00:43,419 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:00:43,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:00:43,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:00:43,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:00:43,441 INFO L87 Difference]: Start difference. First operand 121 states. Second operand 2 states. [2020-11-28 03:00:43,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:00:43,494 INFO L93 Difference]: Finished difference Result 235 states and 347 transitions. [2020-11-28 03:00:43,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:00:43,496 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 116 [2020-11-28 03:00:43,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:00:43,512 INFO L225 Difference]: With dead ends: 235 [2020-11-28 03:00:43,512 INFO L226 Difference]: Without dead ends: 117 [2020-11-28 03:00:43,517 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 [2020-11-28 03:00:43,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-11-28 03:00:43,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2020-11-28 03:00:43,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-11-28 03:00:43,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 121 transitions. [2020-11-28 03:00:43,595 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 121 transitions. Word has length 116 [2020-11-28 03:00:43,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:00:43,596 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 121 transitions. [2020-11-28 03:00:43,596 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:00:43,597 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 121 transitions. [2020-11-28 03:00:43,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-11-28 03:00:43,601 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:00:43,601 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] [2020-11-28 03:00:43,602 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:00:43,602 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:00:43,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:00:43,605 INFO L82 PathProgramCache]: Analyzing trace with hash 1985819869, now seen corresponding path program 1 times [2020-11-28 03:00:43,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:00:43,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982454917] [2020-11-28 03:00:43,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:00:44,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:44,870 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2020-11-28 03:00:45,204 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2020-11-28 03:00:45,427 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 38 [2020-11-28 03:00:45,654 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2020-11-28 03:00:45,874 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-11-28 03:00:46,191 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 43 [2020-11-28 03:00:46,473 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2020-11-28 03:00:46,719 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2020-11-28 03:00:46,916 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2020-11-28 03:00:47,184 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 39 [2020-11-28 03:00:47,460 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 39 [2020-11-28 03:00:48,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:00:48,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982454917] [2020-11-28 03:00:48,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:00:48,116 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2020-11-28 03:00:48,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882567810] [2020-11-28 03:00:48,118 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-11-28 03:00:48,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:00:48,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-11-28 03:00:48,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=719, Unknown=0, NotChecked=0, Total=812 [2020-11-28 03:00:48,120 INFO L87 Difference]: Start difference. First operand 117 states and 121 transitions. Second operand 29 states. [2020-11-28 03:00:49,307 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 38 [2020-11-28 03:00:49,456 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 31 [2020-11-28 03:00:49,945 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2020-11-28 03:00:50,123 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2020-11-28 03:00:50,360 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2020-11-28 03:00:50,551 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2020-11-28 03:00:50,766 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2020-11-28 03:00:50,951 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-11-28 03:00:51,117 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-11-28 03:00:51,387 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-11-28 03:00:51,554 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2020-11-28 03:00:51,717 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-11-28 03:00:51,908 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-11-28 03:00:52,168 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-11-28 03:00:52,375 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-11-28 03:00:52,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:00:52,577 INFO L93 Difference]: Finished difference Result 153 states and 160 transitions. [2020-11-28 03:00:52,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-11-28 03:00:52,581 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 116 [2020-11-28 03:00:52,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:00:52,584 INFO L225 Difference]: With dead ends: 153 [2020-11-28 03:00:52,584 INFO L226 Difference]: Without dead ends: 145 [2020-11-28 03:00:52,586 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=831, Invalid=2249, Unknown=0, NotChecked=0, Total=3080 [2020-11-28 03:00:52,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-11-28 03:00:52,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 125. [2020-11-28 03:00:52,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-11-28 03:00:52,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 130 transitions. [2020-11-28 03:00:52,596 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 130 transitions. Word has length 116 [2020-11-28 03:00:52,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:00:52,597 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 130 transitions. [2020-11-28 03:00:52,598 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-11-28 03:00:52,598 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 130 transitions. [2020-11-28 03:00:52,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-11-28 03:00:52,600 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:00:52,600 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] [2020-11-28 03:00:52,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:00:52,601 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:00:52,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:00:52,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1176473243, now seen corresponding path program 1 times [2020-11-28 03:00:52,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:00:52,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545578904] [2020-11-28 03:00:52,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:00:52,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:00:52,924 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:00:53,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:00:53,294 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:00:53,353 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:00:53,353 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:00:53,354 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:00:53,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:00:53 BoogieIcfgContainer [2020-11-28 03:00:53,475 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:00:53,475 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:00:53,476 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:00:53,476 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:00:53,477 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:00:42" (3/4) ... [2020-11-28 03:00:53,479 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:00:53,569 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9bc8b8df-9ff9-42c7-bf74-a1569b4b5fdf/bin/uautomizer/witness.graphml [2020-11-28 03:00:53,569 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:00:53,570 INFO L168 Benchmark]: Toolchain (without parser) took 11837.40 ms. Allocated memory was 83.9 MB in the beginning and 195.0 MB in the end (delta: 111.1 MB). Free memory was 55.6 MB in the beginning and 82.1 MB in the end (delta: -26.5 MB). Peak memory consumption was 84.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:00:53,571 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 83.9 MB. Free memory was 41.6 MB in the beginning and 41.6 MB in the end (delta: 36.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:00:53,571 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.41 ms. Allocated memory was 83.9 MB in the beginning and 111.1 MB in the end (delta: 27.3 MB). Free memory was 55.6 MB in the beginning and 88.2 MB in the end (delta: -32.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:00:53,572 INFO L168 Benchmark]: Boogie Procedure Inliner took 100.11 ms. Allocated memory is still 111.1 MB. Free memory was 88.2 MB in the beginning and 85.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:00:53,573 INFO L168 Benchmark]: Boogie Preprocessor took 62.30 ms. Allocated memory is still 111.1 MB. Free memory was 85.2 MB in the beginning and 83.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:00:53,573 INFO L168 Benchmark]: RCFGBuilder took 764.15 ms. Allocated memory is still 111.1 MB. Free memory was 83.1 MB in the beginning and 79.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 25.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:00:53,574 INFO L168 Benchmark]: TraceAbstraction took 10518.27 ms. Allocated memory was 111.1 MB in the beginning and 195.0 MB in the end (delta: 83.9 MB). Free memory was 79.4 MB in the beginning and 89.5 MB in the end (delta: -10.0 MB). Peak memory consumption was 76.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:00:53,574 INFO L168 Benchmark]: Witness Printer took 93.60 ms. Allocated memory is still 195.0 MB. Free memory was 89.5 MB in the beginning and 82.1 MB in the end (delta: 7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:00:53,577 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 83.9 MB. Free memory was 41.6 MB in the beginning and 41.6 MB in the end (delta: 36.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 291.41 ms. Allocated memory was 83.9 MB in the beginning and 111.1 MB in the end (delta: 27.3 MB). Free memory was 55.6 MB in the beginning and 88.2 MB in the end (delta: -32.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 100.11 ms. Allocated memory is still 111.1 MB. Free memory was 88.2 MB in the beginning and 85.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 62.30 ms. Allocated memory is still 111.1 MB. Free memory was 85.2 MB in the beginning and 83.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 764.15 ms. Allocated memory is still 111.1 MB. Free memory was 83.1 MB in the beginning and 79.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 25.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10518.27 ms. Allocated memory was 111.1 MB in the beginning and 195.0 MB in the end (delta: 83.9 MB). Free memory was 79.4 MB in the beginning and 89.5 MB in the end (delta: -10.0 MB). Peak memory consumption was 76.0 MB. Max. memory is 16.1 GB. * Witness Printer took 93.60 ms. Allocated memory is still 195.0 MB. Free memory was 89.5 MB in the beginning and 82.1 MB in the end (delta: 7.3 MB). Peak memory consumption was 8.4 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: 10.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 4.5s, 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, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 6.7s 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, 0.9s SatisfiabilityAnalysisTime, 3.8s 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...