./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/terminator_02-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e75add-6687-4be0-a84d-ce2c85a76bae/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e75add-6687-4be0-a84d-ce2c85a76bae/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e75add-6687-4be0-a84d-ce2c85a76bae/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e75add-6687-4be0-a84d-ce2c85a76bae/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/terminator_02-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e75add-6687-4be0-a84d-ce2c85a76bae/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e75add-6687-4be0-a84d-ce2c85a76bae/bin/utaipan-q2qaUkNPG8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3dc5764de0a899142e3c264091a9582d1804fe6f ................................................................................................................................................................................................................................................ 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 0.2.1-dev-4e77c04 [2021-10-13 08:08:20,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 08:08:20,120 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 08:08:20,168 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 08:08:20,171 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 08:08:20,176 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 08:08:20,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 08:08:20,182 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 08:08:20,186 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 08:08:20,188 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 08:08:20,189 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 08:08:20,190 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 08:08:20,191 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 08:08:20,192 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 08:08:20,193 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 08:08:20,195 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 08:08:20,196 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 08:08:20,197 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 08:08:20,199 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 08:08:20,207 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 08:08:20,210 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 08:08:20,212 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 08:08:20,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 08:08:20,216 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 08:08:20,229 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 08:08:20,229 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 08:08:20,230 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 08:08:20,232 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 08:08:20,233 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 08:08:20,234 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 08:08:20,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 08:08:20,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 08:08:20,238 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 08:08:20,240 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 08:08:20,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 08:08:20,242 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 08:08:20,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 08:08:20,243 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 08:08:20,243 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 08:08:20,244 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 08:08:20,245 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 08:08:20,246 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e75add-6687-4be0-a84d-ce2c85a76bae/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 08:08:20,284 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 08:08:20,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 08:08:20,285 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 08:08:20,285 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 08:08:20,286 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 08:08:20,286 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 08:08:20,286 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 08:08:20,286 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 08:08:20,286 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 08:08:20,287 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 08:08:20,287 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 08:08:20,287 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 08:08:20,287 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 08:08:20,288 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 08:08:20,288 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 08:08:20,289 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 08:08:20,289 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 08:08:20,289 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 08:08:20,289 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 08:08:20,289 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 08:08:20,290 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 08:08:20,290 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 08:08:20,290 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 08:08:20,290 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 08:08:20,291 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 08:08:20,291 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 08:08:20,291 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 08:08:20,291 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 08:08:20,291 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 08:08:20,292 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 08:08:20,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:08:20,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 08:08:20,292 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 08:08:20,293 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 08:08:20,293 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 08:08:20,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 08:08:20,293 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 08:08:20,294 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 08:08:20,294 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 08:08:20,294 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e75add-6687-4be0-a84d-ce2c85a76bae/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e75add-6687-4be0-a84d-ce2c85a76bae/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3dc5764de0a899142e3c264091a9582d1804fe6f [2021-10-13 08:08:20,559 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 08:08:20,580 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 08:08:20,583 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 08:08:20,584 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 08:08:20,585 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 08:08:20,586 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e75add-6687-4be0-a84d-ce2c85a76bae/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/loops/terminator_02-1.c [2021-10-13 08:08:20,659 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e75add-6687-4be0-a84d-ce2c85a76bae/bin/utaipan-q2qaUkNPG8/data/5b2b3e88e/94927e1a0d924f01b675a59ce661598b/FLAGecfe4619b [2021-10-13 08:08:21,105 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 08:08:21,107 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e75add-6687-4be0-a84d-ce2c85a76bae/sv-benchmarks/c/loops/terminator_02-1.c [2021-10-13 08:08:21,114 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e75add-6687-4be0-a84d-ce2c85a76bae/bin/utaipan-q2qaUkNPG8/data/5b2b3e88e/94927e1a0d924f01b675a59ce661598b/FLAGecfe4619b [2021-10-13 08:08:21,477 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e75add-6687-4be0-a84d-ce2c85a76bae/bin/utaipan-q2qaUkNPG8/data/5b2b3e88e/94927e1a0d924f01b675a59ce661598b [2021-10-13 08:08:21,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 08:08:21,481 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 08:08:21,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 08:08:21,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 08:08:21,486 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 08:08:21,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:08:21" (1/1) ... [2021-10-13 08:08:21,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f94ac6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:08:21, skipping insertion in model container [2021-10-13 08:08:21,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:08:21" (1/1) ... [2021-10-13 08:08:21,495 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 08:08:21,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 08:08:21,683 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e75add-6687-4be0-a84d-ce2c85a76bae/sv-benchmarks/c/loops/terminator_02-1.c[327,340] [2021-10-13 08:08:21,706 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:08:21,714 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 08:08:21,723 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e75add-6687-4be0-a84d-ce2c85a76bae/sv-benchmarks/c/loops/terminator_02-1.c[327,340] [2021-10-13 08:08:21,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:08:21,739 INFO L208 MainTranslator]: Completed translation [2021-10-13 08:08:21,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:08:21 WrapperNode [2021-10-13 08:08:21,740 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 08:08:21,741 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 08:08:21,741 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 08:08:21,741 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 08:08:21,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:08:21" (1/1) ... [2021-10-13 08:08:21,754 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:08:21" (1/1) ... [2021-10-13 08:08:21,768 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 08:08:21,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 08:08:21,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 08:08:21,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 08:08:21,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:08:21" (1/1) ... [2021-10-13 08:08:21,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:08:21" (1/1) ... [2021-10-13 08:08:21,779 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:08:21" (1/1) ... [2021-10-13 08:08:21,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:08:21" (1/1) ... [2021-10-13 08:08:21,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:08:21" (1/1) ... [2021-10-13 08:08:21,786 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:08:21" (1/1) ... [2021-10-13 08:08:21,787 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:08:21" (1/1) ... [2021-10-13 08:08:21,789 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 08:08:21,789 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 08:08:21,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 08:08:21,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 08:08:21,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:08:21" (1/1) ... [2021-10-13 08:08:21,798 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:08:21,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e75add-6687-4be0-a84d-ce2c85a76bae/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:08:21,819 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e75add-6687-4be0-a84d-ce2c85a76bae/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 08:08:21,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e75add-6687-4be0-a84d-ce2c85a76bae/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 08:08:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 08:08:21,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 08:08:21,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 08:08:21,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 08:08:22,155 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 08:08:22,156 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 08:08:22,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:08:22 BoogieIcfgContainer [2021-10-13 08:08:22,158 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 08:08:22,161 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 08:08:22,161 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 08:08:22,165 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 08:08:22,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:08:21" (1/3) ... [2021-10-13 08:08:22,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df6e933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:08:22, skipping insertion in model container [2021-10-13 08:08:22,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:08:21" (2/3) ... [2021-10-13 08:08:22,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df6e933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:08:22, skipping insertion in model container [2021-10-13 08:08:22,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:08:22" (3/3) ... [2021-10-13 08:08:22,169 INFO L111 eAbstractionObserver]: Analyzing ICFG terminator_02-1.c [2021-10-13 08:08:22,175 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 08:08:22,175 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 08:08:22,246 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 08:08:22,278 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 08:08:22,278 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 08:08:22,291 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:08:22,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 08:08:22,296 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:08:22,296 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-13 08:08:22,297 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:08:22,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:08:22,302 INFO L82 PathProgramCache]: Analyzing trace with hash 2064998, now seen corresponding path program 1 times [2021-10-13 08:08:22,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 08:08:22,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31227071] [2021-10-13 08:08:22,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:08:22,313 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 08:08:22,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 08:08:22,416 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 08:08:22,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 08:08:22,500 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-13 08:08:22,504 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 08:08:22,505 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:08:22,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 08:08:22,514 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 08:08:22,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 08:08:22 BoogieIcfgContainer [2021-10-13 08:08:22,529 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 08:08:22,532 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 08:08:22,532 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 08:08:22,533 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 08:08:22,533 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:08:22" (3/4) ... [2021-10-13 08:08:22,535 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 08:08:22,573 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e75add-6687-4be0-a84d-ce2c85a76bae/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 08:08:22,573 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 08:08:22,576 INFO L168 Benchmark]: Toolchain (without parser) took 1094.20 ms. Allocated memory is still 111.1 MB. Free memory was 70.7 MB in the beginning and 57.0 MB in the end (delta: 13.7 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. [2021-10-13 08:08:22,577 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 111.1 MB. Free memory is still 87.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:08:22,578 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.05 ms. Allocated memory is still 111.1 MB. Free memory was 70.5 MB in the beginning and 86.5 MB in the end (delta: -16.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 08:08:22,580 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.42 ms. Allocated memory is still 111.1 MB. Free memory was 86.5 MB in the beginning and 85.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 08:08:22,582 INFO L168 Benchmark]: Boogie Preprocessor took 19.65 ms. Allocated memory is still 111.1 MB. Free memory was 84.9 MB in the beginning and 84.1 MB in the end (delta: 778.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:08:22,584 INFO L168 Benchmark]: RCFGBuilder took 369.26 ms. Allocated memory is still 111.1 MB. Free memory was 84.1 MB in the beginning and 72.7 MB in the end (delta: 11.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 08:08:22,585 INFO L168 Benchmark]: TraceAbstraction took 368.24 ms. Allocated memory is still 111.1 MB. Free memory was 72.0 MB in the beginning and 58.7 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 08:08:22,588 INFO L168 Benchmark]: Witness Printer took 41.68 ms. Allocated memory is still 111.1 MB. Free memory was 58.7 MB in the beginning and 57.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 08:08:22,594 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 111.1 MB. Free memory is still 87.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 258.05 ms. Allocated memory is still 111.1 MB. Free memory was 70.5 MB in the beginning and 86.5 MB in the end (delta: -16.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 27.42 ms. Allocated memory is still 111.1 MB. Free memory was 86.5 MB in the beginning and 85.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.65 ms. Allocated memory is still 111.1 MB. Free memory was 84.9 MB in the beginning and 84.1 MB in the end (delta: 778.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 369.26 ms. Allocated memory is still 111.1 MB. Free memory was 84.1 MB in the beginning and 72.7 MB in the end (delta: 11.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 368.24 ms. Allocated memory is still 111.1 MB. Free memory was 72.0 MB in the beginning and 58.7 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 41.68 ms. Allocated memory is still 111.1 MB. Free memory was 58.7 MB in the beginning and 57.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 7]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L16] int x=__VERIFIER_nondet_int(); [L17] int y=__VERIFIER_nondet_int(); [L18] int z=__VERIFIER_nondet_int(); [L20] COND FALSE !(x<100 && 100