./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound1.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_28b921b6-97a4-4094-912c-cdb8e4ab3a00/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_28b921b6-97a4-4094-912c-cdb8e4ab3a00/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_28b921b6-97a4-4094-912c-cdb8e4ab3a00/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_28b921b6-97a4-4094-912c-cdb8e4ab3a00/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_28b921b6-97a4-4094-912c-cdb8e4ab3a00/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_28b921b6-97a4-4094-912c-cdb8e4ab3a00/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash af7f35fd373c746accd069508e77731f2340edb7 .......................................................................................................................................................................................................................................................................................................................................................................... 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 07:40:41,233 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:40:41,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:40:41,318 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:40:41,320 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:40:41,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:40:41,323 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:40:41,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:40:41,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:40:41,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:40:41,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:40:41,333 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:40:41,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:40:41,335 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:40:41,337 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:40:41,338 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:40:41,339 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:40:41,341 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:40:41,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:40:41,346 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:40:41,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:40:41,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:40:41,357 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:40:41,359 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:40:41,364 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:40:41,368 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:40:41,369 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:40:41,370 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:40:41,372 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:40:41,373 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:40:41,374 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:40:41,375 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:40:41,377 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:40:41,378 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:40:41,380 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:40:41,381 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:40:41,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:40:41,382 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:40:41,382 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:40:41,383 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:40:41,384 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:40:41,387 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_28b921b6-97a4-4094-912c-cdb8e4ab3a00/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:40:41,413 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:40:41,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:40:41,414 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:40:41,414 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:40:41,414 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:40:41,415 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:40:41,415 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:40:41,415 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:40:41,415 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:40:41,416 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:40:41,416 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:40:41,416 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:40:41,416 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:40:41,417 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:40:41,417 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:40:41,418 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:40:41,418 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:40:41,418 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:40:41,419 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:40:41,419 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:40:41,419 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:40:41,419 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:40:41,420 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:40:41,420 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:40:41,420 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:40:41,420 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:40:41,421 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:40:41,421 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:40:41,421 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:40:41,421 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:40:41,422 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:40:41,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:40:41,422 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:40:41,423 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:40:41,423 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:40:41,423 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:40:41,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:40:41,424 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:40:41,424 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:40:41,424 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:40:41,424 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_28b921b6-97a4-4094-912c-cdb8e4ab3a00/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_28b921b6-97a4-4094-912c-cdb8e4ab3a00/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af7f35fd373c746accd069508e77731f2340edb7 [2020-11-28 07:40:41,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:40:41,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:40:41,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:40:41,787 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:40:41,788 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:40:41,789 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_28b921b6-97a4-4094-912c-cdb8e4ab3a00/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound1.c [2020-11-28 07:40:41,876 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_28b921b6-97a4-4094-912c-cdb8e4ab3a00/bin/utaipan/data/50cb40ccf/ed8ebddc470548d3bdc6929e3e621406/FLAG6c009b5d5 [2020-11-28 07:40:42,364 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:40:42,366 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_28b921b6-97a4-4094-912c-cdb8e4ab3a00/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound1.c [2020-11-28 07:40:42,378 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_28b921b6-97a4-4094-912c-cdb8e4ab3a00/bin/utaipan/data/50cb40ccf/ed8ebddc470548d3bdc6929e3e621406/FLAG6c009b5d5 [2020-11-28 07:40:42,714 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_28b921b6-97a4-4094-912c-cdb8e4ab3a00/bin/utaipan/data/50cb40ccf/ed8ebddc470548d3bdc6929e3e621406 [2020-11-28 07:40:42,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:40:42,719 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:40:42,735 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:40:42,735 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:40:42,739 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:40:42,740 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:40:42" (1/1) ... [2020-11-28 07:40:42,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12f195c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:42, skipping insertion in model container [2020-11-28 07:40:42,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:40:42" (1/1) ... [2020-11-28 07:40:42,758 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:40:42,777 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:40:43,015 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:40:43,028 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:40:43,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:40:43,076 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:40:43,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:43 WrapperNode [2020-11-28 07:40:43,079 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:40:43,080 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:40:43,080 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:40:43,081 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:40:43,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:43" (1/1) ... [2020-11-28 07:40:43,097 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:43" (1/1) ... [2020-11-28 07:40:43,120 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:40:43,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:40:43,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:40:43,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:40:43,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:43" (1/1) ... [2020-11-28 07:40:43,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:43" (1/1) ... [2020-11-28 07:40:43,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:43" (1/1) ... [2020-11-28 07:40:43,143 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:43" (1/1) ... [2020-11-28 07:40:43,152 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:43" (1/1) ... [2020-11-28 07:40:43,162 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:43" (1/1) ... [2020-11-28 07:40:43,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:43" (1/1) ... [2020-11-28 07:40:43,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:40:43,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:40:43,172 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:40:43,172 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:40:43,174 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_28b921b6-97a4-4094-912c-cdb8e4ab3a00/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:40:43,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 07:40:43,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:40:43,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:40:43,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:40:43,240 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_unsigned_int [2020-11-28 07:40:43,685 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:40:43,685 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-11-28 07:40:43,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:40:43 BoogieIcfgContainer [2020-11-28 07:40:43,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:40:43,689 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:40:43,690 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:40:43,695 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:40:43,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:40:42" (1/3) ... [2020-11-28 07:40:43,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@283982b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:40:43, skipping insertion in model container [2020-11-28 07:40:43,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:43" (2/3) ... [2020-11-28 07:40:43,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@283982b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:40:43, skipping insertion in model container [2020-11-28 07:40:43,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:40:43" (3/3) ... [2020-11-28 07:40:43,699 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-u_unwindbound1.c [2020-11-28 07:40:43,714 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:40:43,719 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-28 07:40:43,732 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-28 07:40:43,768 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:40:43,768 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:40:43,769 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:40:43,769 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:40:43,769 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:40:43,769 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:40:43,769 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:40:43,769 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:40:43,787 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-11-28 07:40:43,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 07:40:43,798 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:40:43,800 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-28 07:40:43,800 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:40:43,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:40:43,807 INFO L82 PathProgramCache]: Analyzing trace with hash 73178710, now seen corresponding path program 1 times [2020-11-28 07:40:43,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:40:43,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809395497] [2020-11-28 07:40:43,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:40:43,939 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 07:40:43,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1825387867] [2020-11-28 07:40:43,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_28b921b6-97a4-4094-912c-cdb8e4ab3a00/bin/utaipan/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 [2020-11-28 07:40:44,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:40:44,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 07:40:44,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:40:44,203 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 07:40:44,203 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:40:44,225 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-28 07:40:44,253 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 07:40:44,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809395497] [2020-11-28 07:40:44,254 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 07:40:44,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825387867] [2020-11-28 07:40:44,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:40:44,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-28 07:40:44,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903633148] [2020-11-28 07:40:44,262 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 07:40:44,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:40:44,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 07:40:44,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-28 07:40:44,278 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 5 states. [2020-11-28 07:40:46,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:40:46,492 INFO L93 Difference]: Finished difference Result 39 states and 57 transitions. [2020-11-28 07:40:46,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 07:40:46,496 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2020-11-28 07:40:46,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:40:46,508 INFO L225 Difference]: With dead ends: 39 [2020-11-28 07:40:46,508 INFO L226 Difference]: Without dead ends: 25 [2020-11-28 07:40:46,512 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-28 07:40:46,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-11-28 07:40:46,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 18. [2020-11-28 07:40:46,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-28 07:40:46,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2020-11-28 07:40:46,553 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 5 [2020-11-28 07:40:46,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:40:46,553 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2020-11-28 07:40:46,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 07:40:46,554 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2020-11-28 07:40:46,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 07:40:46,554 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:40:46,554 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-28 07:40:46,770 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-11-28 07:40:46,771 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:40:46,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:40:46,772 INFO L82 PathProgramCache]: Analyzing trace with hash -2026469936, now seen corresponding path program 1 times [2020-11-28 07:40:46,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:40:46,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964642616] [2020-11-28 07:40:46,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:40:46,787 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 07:40:46,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [247757235] [2020-11-28 07:40:46,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_28b921b6-97a4-4094-912c-cdb8e4ab3a00/bin/utaipan/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 [2020-11-28 07:40:46,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:40:46,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 07:40:46,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:40:46,885 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 07:40:46,886 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:40:46,899 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 07:40:46,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964642616] [2020-11-28 07:40:46,899 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 07:40:46,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247757235] [2020-11-28 07:40:46,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:40:46,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-28 07:40:46,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354698393] [2020-11-28 07:40:46,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:40:46,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:40:46,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:40:46,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:40:46,908 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand 4 states. [2020-11-28 07:40:46,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:40:46,933 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2020-11-28 07:40:46,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 07:40:46,935 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-11-28 07:40:46,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:40:46,936 INFO L225 Difference]: With dead ends: 22 [2020-11-28 07:40:46,936 INFO L226 Difference]: Without dead ends: 18 [2020-11-28 07:40:46,937 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:40:46,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-11-28 07:40:46,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-11-28 07:40:46,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-28 07:40:46,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2020-11-28 07:40:46,941 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 6 [2020-11-28 07:40:46,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:40:46,941 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2020-11-28 07:40:46,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:40:46,941 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2020-11-28 07:40:46,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 07:40:46,942 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:40:46,942 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:40:47,154 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:40:47,155 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:40:47,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:40:47,155 INFO L82 PathProgramCache]: Analyzing trace with hash -1770595639, now seen corresponding path program 1 times [2020-11-28 07:40:47,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:40:47,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374641836] [2020-11-28 07:40:47,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:40:47,169 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 07:40:47,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [466214995] [2020-11-28 07:40:47,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_28b921b6-97a4-4094-912c-cdb8e4ab3a00/bin/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:40:47,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:40:47,230 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:40:47,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:40:47,254 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:40:47,273 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-28 07:40:47,273 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 07:40:47,486 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:40:47,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:40:47 BoogieIcfgContainer [2020-11-28 07:40:47,511 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:40:47,511 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:40:47,511 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:40:47,511 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:40:47,512 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:40:43" (3/4) ... [2020-11-28 07:40:47,514 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 07:40:47,576 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_28b921b6-97a4-4094-912c-cdb8e4ab3a00/bin/utaipan/witness.graphml [2020-11-28 07:40:47,579 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:40:47,581 INFO L168 Benchmark]: Toolchain (without parser) took 4861.56 ms. Allocated memory is still 92.3 MB. Free memory was 61.0 MB in the beginning and 61.1 MB in the end (delta: -59.1 kB). Peak memory consumption was 217.0 kB. Max. memory is 16.1 GB. [2020-11-28 07:40:47,582 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 75.5 MB. Free memory was 57.1 MB in the beginning and 57.0 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:40:47,583 INFO L168 Benchmark]: CACSL2BoogieTranslator took 344.35 ms. Allocated memory is still 92.3 MB. Free memory was 60.8 MB in the beginning and 70.6 MB in the end (delta: -9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:40:47,584 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.37 ms. Allocated memory is still 92.3 MB. Free memory was 70.6 MB in the beginning and 69.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:40:47,585 INFO L168 Benchmark]: Boogie Preprocessor took 49.23 ms. Allocated memory is still 92.3 MB. Free memory was 69.3 MB in the beginning and 68.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:40:47,585 INFO L168 Benchmark]: RCFGBuilder took 516.31 ms. Allocated memory is still 92.3 MB. Free memory was 68.1 MB in the beginning and 54.3 MB in the end (delta: 13.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-28 07:40:47,586 INFO L168 Benchmark]: TraceAbstraction took 3821.22 ms. Allocated memory is still 92.3 MB. Free memory was 53.9 MB in the beginning and 63.0 MB in the end (delta: -9.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:40:47,586 INFO L168 Benchmark]: Witness Printer took 68.55 ms. Allocated memory is still 92.3 MB. Free memory was 63.0 MB in the beginning and 61.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:40:47,595 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 75.5 MB. Free memory was 57.1 MB in the beginning and 57.0 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 344.35 ms. Allocated memory is still 92.3 MB. Free memory was 60.8 MB in the beginning and 70.6 MB in the end (delta: -9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.37 ms. Allocated memory is still 92.3 MB. Free memory was 70.6 MB in the beginning and 69.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.23 ms. Allocated memory is still 92.3 MB. Free memory was 69.3 MB in the beginning and 68.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 516.31 ms. Allocated memory is still 92.3 MB. Free memory was 68.1 MB in the beginning and 54.3 MB in the end (delta: 13.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3821.22 ms. Allocated memory is still 92.3 MB. Free memory was 53.9 MB in the beginning and 63.0 MB in the end (delta: -9.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 68.55 ms. Allocated memory is still 92.3 MB. Free memory was 63.0 MB in the beginning and 61.1 MB in the end (delta: 2.0 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: 9]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L22] int counter = 0; [L24] unsigned int z, k; [L25] long long x, y, c; [L26] z = __VERIFIER_nondet_unsigned_int() [L27] k = __VERIFIER_nondet_unsigned_int() [L29] x = 1 [L30] y = z [L31] c = 1 VAL [counter=0] [L33] EXPR counter++ VAL [counter=1] [L33] COND TRUE counter++<1 [L16] COND FALSE !(!(cond)) VAL [counter=1] [L36] COND TRUE !(c < k) VAL [counter=1] [L45] x = x * (z - 1) [L16] COND TRUE !(cond) VAL [counter=1] [L9] __assert_fail("0", "geo1-u.c", 9, "reach_error") VAL [counter=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 15 SDslu, 44 SDs, 0 SdLazy, 30 SolverSat, 4 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=1, 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, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 282 SizeOfPredicates, 5 NumberOfNonLiveVariables, 104 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...