./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa6849b-76e3-4e94-a525-a97693ee8197/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa6849b-76e3-4e94-a525-a97693ee8197/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa6849b-76e3-4e94-a525-a97693ee8197/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa6849b-76e3-4e94-a525-a97693ee8197/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa6849b-76e3-4e94-a525-a97693ee8197/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa6849b-76e3-4e94-a525-a97693ee8197/bin/utaipan-WLngWcDbfI --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 75e3ae35873fc976ba5f9091947bbca66fbdab4b ....................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-7b2dab5 [2021-10-11 02:32:36,070 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:32:36,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:32:36,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:32:36,122 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:32:36,127 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:32:36,129 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:32:36,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:32:36,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:32:36,142 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:32:36,143 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:32:36,144 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:32:36,145 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:32:36,148 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:32:36,149 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:32:36,151 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:32:36,153 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:32:36,156 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:32:36,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:32:36,166 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:32:36,168 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:32:36,170 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:32:36,173 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:32:36,175 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:32:36,183 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:32:36,184 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:32:36,185 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:32:36,187 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:32:36,187 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:32:36,189 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:32:36,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:32:36,191 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:32:36,193 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:32:36,194 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:32:36,196 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:32:36,196 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:32:36,197 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:32:36,197 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:32:36,198 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:32:36,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:32:36,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:32:36,202 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa6849b-76e3-4e94-a525-a97693ee8197/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:32:36,242 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:32:36,243 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:32:36,245 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:32:36,245 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:32:36,245 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:32:36,246 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:32:36,246 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:32:36,246 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:32:36,246 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:32:36,247 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:32:36,248 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:32:36,248 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:32:36,248 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:32:36,248 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:32:36,249 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:32:36,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:32:36,250 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:32:36,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:32:36,250 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:32:36,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:32:36,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:32:36,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:32:36,251 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:32:36,251 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:32:36,252 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:32:36,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:32:36,252 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:32:36,252 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:32:36,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:32:36,254 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:32:36,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:32:36,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:32:36,255 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:32:36,255 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:32:36,256 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:32:36,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:32:36,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:32:36,256 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:32:36,257 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:32:36,257 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_1aa6849b-76e3-4e94-a525-a97693ee8197/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa6849b-76e3-4e94-a525-a97693ee8197/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75e3ae35873fc976ba5f9091947bbca66fbdab4b [2021-10-11 02:32:36,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:32:36,518 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:32:36,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:32:36,522 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:32:36,523 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:32:36,524 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa6849b-76e3-4e94-a525-a97693ee8197/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound1.c [2021-10-11 02:32:36,603 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa6849b-76e3-4e94-a525-a97693ee8197/bin/utaipan-WLngWcDbfI/data/4c4dab106/7a943acf49414fb596d8e155db8cf2e1/FLAGfef1edc0e [2021-10-11 02:32:37,008 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:32:37,008 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa6849b-76e3-4e94-a525-a97693ee8197/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound1.c [2021-10-11 02:32:37,025 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa6849b-76e3-4e94-a525-a97693ee8197/bin/utaipan-WLngWcDbfI/data/4c4dab106/7a943acf49414fb596d8e155db8cf2e1/FLAGfef1edc0e [2021-10-11 02:32:37,416 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa6849b-76e3-4e94-a525-a97693ee8197/bin/utaipan-WLngWcDbfI/data/4c4dab106/7a943acf49414fb596d8e155db8cf2e1 [2021-10-11 02:32:37,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:32:37,419 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:32:37,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:37,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:32:37,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:32:37,424 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:37" (1/1) ... [2021-10-11 02:32:37,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@433c1827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:37, skipping insertion in model container [2021-10-11 02:32:37,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:37" (1/1) ... [2021-10-11 02:32:37,433 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:32:37,448 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:32:37,599 WARN L226 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_1aa6849b-76e3-4e94-a525-a97693ee8197/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound1.c[597,610] [2021-10-11 02:32:37,615 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:37,624 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:32:37,635 WARN L226 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_1aa6849b-76e3-4e94-a525-a97693ee8197/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound1.c[597,610] [2021-10-11 02:32:37,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:37,656 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:32:37,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:37 WrapperNode [2021-10-11 02:32:37,657 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:37,658 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:32:37,659 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:32:37,659 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:32:37,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:37" (1/1) ... [2021-10-11 02:32:37,672 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:37" (1/1) ... [2021-10-11 02:32:37,691 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:32:37,692 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:32:37,692 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:32:37,692 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:32:37,700 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:37" (1/1) ... [2021-10-11 02:32:37,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:37" (1/1) ... [2021-10-11 02:32:37,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:37" (1/1) ... [2021-10-11 02:32:37,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:37" (1/1) ... [2021-10-11 02:32:37,706 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:37" (1/1) ... [2021-10-11 02:32:37,710 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:37" (1/1) ... [2021-10-11 02:32:37,711 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:37" (1/1) ... [2021-10-11 02:32:37,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:32:37,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:32:37,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:32:37,714 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:32:37,715 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:37" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa6849b-76e3-4e94-a525-a97693ee8197/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:32:37,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:32:37,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:32:37,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:32:37,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:32:38,065 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:32:38,065 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-11 02:32:38,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:38 BoogieIcfgContainer [2021-10-11 02:32:38,068 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:32:38,069 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:32:38,070 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:32:38,073 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:32:38,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:32:37" (1/3) ... [2021-10-11 02:32:38,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@92104b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:32:38, skipping insertion in model container [2021-10-11 02:32:38,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:37" (2/3) ... [2021-10-11 02:32:38,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@92104b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:32:38, skipping insertion in model container [2021-10-11 02:32:38,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:38" (3/3) ... [2021-10-11 02:32:38,077 INFO L111 eAbstractionObserver]: Analyzing ICFG bresenham-ll_unwindbound1.c [2021-10-11 02:32:38,091 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:32:38,094 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 02:32:38,105 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 02:32:38,129 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:32:38,129 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:32:38,129 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:32:38,130 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:32:38,130 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:32:38,130 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:32:38,130 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:32:38,130 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:32:38,144 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2021-10-11 02:32:38,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:32:38,159 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:38,160 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:32:38,160 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:38,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:38,166 INFO L82 PathProgramCache]: Analyzing trace with hash 78686072, now seen corresponding path program 1 times [2021-10-11 02:32:38,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:38,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482174678] [2021-10-11 02:32:38,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:38,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:38,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:38,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482174678] [2021-10-11 02:32:38,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:38,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:32:38,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472378867] [2021-10-11 02:32:38,379 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:32:38,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:38,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:32:38,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:32:38,404 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 2 states. [2021-10-11 02:32:38,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:38,422 INFO L93 Difference]: Finished difference Result 25 states and 33 transitions. [2021-10-11 02:32:38,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:32:38,423 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2021-10-11 02:32:38,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:38,443 INFO L225 Difference]: With dead ends: 25 [2021-10-11 02:32:38,443 INFO L226 Difference]: Without dead ends: 11 [2021-10-11 02:32:38,446 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 [2021-10-11 02:32:38,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-11 02:32:38,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-11 02:32:38,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-10-11 02:32:38,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2021-10-11 02:32:38,482 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 5 [2021-10-11 02:32:38,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:38,482 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-10-11 02:32:38,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:32:38,483 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2021-10-11 02:32:38,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:32:38,484 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:38,484 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:32:38,484 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:32:38,484 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:38,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:38,487 INFO L82 PathProgramCache]: Analyzing trace with hash 77796315, now seen corresponding path program 1 times [2021-10-11 02:32:38,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:38,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266939865] [2021-10-11 02:32:38,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:38,529 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:32:38,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1244724504] [2021-10-11 02:32:38,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa6849b-76e3-4e94-a525-a97693ee8197/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:32:38,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:38,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-11 02:32:38,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:38,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:38,701 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:32:38,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:38,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266939865] [2021-10-11 02:32:38,762 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:32:38,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244724504] [2021-10-11 02:32:38,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:38,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-11 02:32:38,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005279918] [2021-10-11 02:32:38,766 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:32:38,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:38,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:32:38,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:32:38,779 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand 6 states. [2021-10-11 02:32:40,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:40,901 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2021-10-11 02:32:40,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 02:32:40,901 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2021-10-11 02:32:40,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:40,902 INFO L225 Difference]: With dead ends: 33 [2021-10-11 02:32:40,902 INFO L226 Difference]: Without dead ends: 26 [2021-10-11 02:32:40,903 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:32:40,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-10-11 02:32:40,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 18. [2021-10-11 02:32:40,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-10-11 02:32:40,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2021-10-11 02:32:40,909 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 5 [2021-10-11 02:32:40,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:40,909 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2021-10-11 02:32:40,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:32:40,910 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2021-10-11 02:32:40,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:32:40,910 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:40,911 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:41,128 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-11 02:32:41,129 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:41,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:41,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1713128762, now seen corresponding path program 1 times [2021-10-11 02:32:41,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:41,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810412738] [2021-10-11 02:32:41,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:41,144 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:32:41,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1874640518] [2021-10-11 02:32:41,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa6849b-76e3-4e94-a525-a97693ee8197/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:32:41,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:32:41,209 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:32:41,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:32:41,258 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:32:41,328 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:32:41,329 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:32:41,529 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:32:41,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:32:41 BoogieIcfgContainer [2021-10-11 02:32:41,569 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:32:41,570 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:32:41,570 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:32:41,570 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:32:41,571 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:38" (3/4) ... [2021-10-11 02:32:41,572 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:32:41,615 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1aa6849b-76e3-4e94-a525-a97693ee8197/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:32:41,615 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:32:41,617 INFO L168 Benchmark]: Toolchain (without parser) took 4197.42 ms. Allocated memory was 98.6 MB in the beginning and 123.7 MB in the end (delta: 25.2 MB). Free memory was 65.3 MB in the beginning and 92.4 MB in the end (delta: -27.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:41,618 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 98.6 MB. Free memory was 52.1 MB in the beginning and 52.0 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:41,619 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.36 ms. Allocated memory is still 98.6 MB. Free memory was 65.1 MB in the beginning and 73.2 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:41,619 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.01 ms. Allocated memory is still 98.6 MB. Free memory was 73.2 MB in the beginning and 71.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:41,620 INFO L168 Benchmark]: Boogie Preprocessor took 21.38 ms. Allocated memory is still 98.6 MB. Free memory was 71.8 MB in the beginning and 70.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:41,621 INFO L168 Benchmark]: RCFGBuilder took 353.86 ms. Allocated memory is still 98.6 MB. Free memory was 70.8 MB in the beginning and 53.3 MB in the end (delta: 17.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:41,621 INFO L168 Benchmark]: TraceAbstraction took 3499.83 ms. Allocated memory was 98.6 MB in the beginning and 123.7 MB in the end (delta: 25.2 MB). Free memory was 53.0 MB in the beginning and 94.5 MB in the end (delta: -41.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:41,622 INFO L168 Benchmark]: Witness Printer took 45.87 ms. Allocated memory is still 123.7 MB. Free memory was 94.5 MB in the beginning and 92.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:41,626 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 98.6 MB. Free memory was 52.1 MB in the beginning and 52.0 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 237.36 ms. Allocated memory is still 98.6 MB. Free memory was 65.1 MB in the beginning and 73.2 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.01 ms. Allocated memory is still 98.6 MB. Free memory was 73.2 MB in the beginning and 71.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.38 ms. Allocated memory is still 98.6 MB. Free memory was 71.8 MB in the beginning and 70.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 353.86 ms. Allocated memory is still 98.6 MB. Free memory was 70.8 MB in the beginning and 53.3 MB in the end (delta: 17.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3499.83 ms. Allocated memory was 98.6 MB in the beginning and 123.7 MB in the end (delta: 25.2 MB). Free memory was 53.0 MB in the beginning and 94.5 MB in the end (delta: -41.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 45.87 ms. Allocated memory is still 123.7 MB. Free memory was 94.5 MB in the beginning and 92.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 16]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L21] int counter = 0; [L23] int X, Y; [L24] long long x, y, v, xy, yx; [L25] X = __VERIFIER_nondet_int() [L26] Y = __VERIFIER_nondet_int() [L27] v = ((long long) 2 * Y) - X [L28] y = 0 [L29] x = 0 VAL [counter=0] [L31] EXPR counter++ VAL [counter=1] [L31] COND TRUE counter++<1 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y [L14] COND FALSE !(!(cond)) VAL [counter=1] [L35] COND FALSE !(!(x <= X)) [L39] COND FALSE !(v < 0) [L42] v = v + 2 * ((long long) Y - X) [L43] y++ [L45] x++ VAL [counter=1] [L31] EXPR counter++ VAL [counter=2] [L31] COND FALSE !(counter++<1) [L47] xy = (long long) x*y [L48] yx = (long long) Y*x [L14] COND TRUE !(cond) VAL [counter=2] [L16] reach_error() VAL [counter=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.4s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 30 SDslu, 22 SDs, 0 SdLazy, 20 SolverSat, 12 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 308 SizeOfPredicates, 8 NumberOfNonLiveVariables, 59 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...