./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound100.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_9a2182f3-48f6-4b2a-897c-c6bf898ce2a7/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9a2182f3-48f6-4b2a-897c-c6bf898ce2a7/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9a2182f3-48f6-4b2a-897c-c6bf898ce2a7/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9a2182f3-48f6-4b2a-897c-c6bf898ce2a7/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound100.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9a2182f3-48f6-4b2a-897c-c6bf898ce2a7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9a2182f3-48f6-4b2a-897c-c6bf898ce2a7/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 3f9153fe2f6373b18a53e1a2a264a2943c066301 .......................................................................................................................................................................................................................................................................................................................................................................... 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 [2020-11-22 13:01:32,871 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:01:32,873 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:01:32,971 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:01:32,972 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:01:32,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:01:32,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:01:32,985 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:01:32,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:01:32,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:01:32,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:01:32,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:01:32,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:01:32,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:01:32,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:01:33,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:01:33,001 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:01:33,002 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:01:33,004 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:01:33,010 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:01:33,014 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:01:33,016 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:01:33,019 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:01:33,020 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:01:33,029 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:01:33,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:01:33,030 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:01:33,032 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:01:33,032 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:01:33,033 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:01:33,034 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:01:33,035 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:01:33,037 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:01:33,038 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:01:33,039 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:01:33,039 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:01:33,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:01:33,040 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:01:33,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:01:33,041 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:01:33,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:01:33,044 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9a2182f3-48f6-4b2a-897c-c6bf898ce2a7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:01:33,084 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:01:33,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:01:33,086 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:01:33,086 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:01:33,086 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:01:33,087 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:01:33,087 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:01:33,087 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:01:33,087 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:01:33,087 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:01:33,088 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:01:33,089 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:01:33,089 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:01:33,089 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:01:33,089 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:01:33,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:01:33,090 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:01:33,091 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:01:33,091 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:01:33,091 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:01:33,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:01:33,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:01:33,092 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:01:33,092 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:01:33,092 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:01:33,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:01:33,092 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:01:33,093 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:01:33,093 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:01:33,093 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:01:33,095 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:01:33,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:01:33,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:01:33,095 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:01:33,096 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:01:33,096 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:01:33,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:01:33,096 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:01:33,096 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:01:33,097 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:01:33,097 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_9a2182f3-48f6-4b2a-897c-c6bf898ce2a7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9a2182f3-48f6-4b2a-897c-c6bf898ce2a7/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f9153fe2f6373b18a53e1a2a264a2943c066301 [2020-11-22 13:01:33,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:01:33,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:01:33,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:01:33,405 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:01:33,406 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:01:33,407 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9a2182f3-48f6-4b2a-897c-c6bf898ce2a7/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound100.c [2020-11-22 13:01:33,488 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9a2182f3-48f6-4b2a-897c-c6bf898ce2a7/bin/utaipan/data/8c3ec0b93/71ac0e5910564b97b469c7826018d6c3/FLAG20e018865 [2020-11-22 13:01:33,906 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:01:33,907 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9a2182f3-48f6-4b2a-897c-c6bf898ce2a7/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound100.c [2020-11-22 13:01:33,918 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9a2182f3-48f6-4b2a-897c-c6bf898ce2a7/bin/utaipan/data/8c3ec0b93/71ac0e5910564b97b469c7826018d6c3/FLAG20e018865 [2020-11-22 13:01:34,306 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9a2182f3-48f6-4b2a-897c-c6bf898ce2a7/bin/utaipan/data/8c3ec0b93/71ac0e5910564b97b469c7826018d6c3 [2020-11-22 13:01:34,308 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:01:34,311 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:01:34,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:01:34,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:01:34,332 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:01:34,333 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:01:34" (1/1) ... [2020-11-22 13:01:34,336 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@434f9f4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:34, skipping insertion in model container [2020-11-22 13:01:34,336 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:01:34" (1/1) ... [2020-11-22 13:01:34,341 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:01:34,354 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:01:34,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:01:34,551 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:01:34,577 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:01:34,593 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:01:34,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:34 WrapperNode [2020-11-22 13:01:34,594 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:01:34,597 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:01:34,597 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:01:34,597 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:01:34,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:34" (1/1) ... [2020-11-22 13:01:34,613 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:34" (1/1) ... [2020-11-22 13:01:34,630 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:01:34,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:01:34,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:01:34,632 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:01:34,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:34" (1/1) ... [2020-11-22 13:01:34,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:34" (1/1) ... [2020-11-22 13:01:34,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:34" (1/1) ... [2020-11-22 13:01:34,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:34" (1/1) ... [2020-11-22 13:01:34,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:34" (1/1) ... [2020-11-22 13:01:34,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:34" (1/1) ... [2020-11-22 13:01:34,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:34" (1/1) ... [2020-11-22 13:01:34,652 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:01:34,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:01:34,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:01:34,654 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:01:34,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a2182f3-48f6-4b2a-897c-c6bf898ce2a7/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 [2020-11-22 13:01:34,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 13:01:34,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:01:34,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:01:34,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:01:34,720 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_unsigned_int [2020-11-22 13:01:34,992 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:01:34,992 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-11-22 13:01:34,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:01:34 BoogieIcfgContainer [2020-11-22 13:01:34,994 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:01:34,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:01:34,996 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:01:35,004 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:01:35,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:01:34" (1/3) ... [2020-11-22 13:01:35,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ea97771 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:01:35, skipping insertion in model container [2020-11-22 13:01:35,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:01:34" (2/3) ... [2020-11-22 13:01:35,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ea97771 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:01:35, skipping insertion in model container [2020-11-22 13:01:35,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:01:34" (3/3) ... [2020-11-22 13:01:35,019 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-u_unwindbound100.c [2020-11-22 13:01:35,030 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:01:35,033 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-22 13:01:35,075 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-22 13:01:35,112 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:01:35,112 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:01:35,113 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:01:35,113 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:01:35,113 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:01:35,113 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:01:35,113 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:01:35,113 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:01:35,126 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-11-22 13:01:35,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-22 13:01:35,130 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:01:35,131 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-22 13:01:35,131 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:01:35,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:01:35,137 INFO L82 PathProgramCache]: Analyzing trace with hash 73178710, now seen corresponding path program 1 times [2020-11-22 13:01:35,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:01:35,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738610431] [2020-11-22 13:01:35,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:01:35,246 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-22 13:01:35,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [232197503] [2020-11-22 13:01:35,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a2182f3-48f6-4b2a-897c-c6bf898ce2a7/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 [2020-11-22 13:01:35,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:01:35,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-22 13:01:35,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:01:35,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:01:35,440 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:01:35,460 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-22 13:01:35,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:01:35,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738610431] [2020-11-22 13:01:35,493 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-22 13:01:35,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232197503] [2020-11-22 13:01:35,494 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:01:35,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:01:35,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540338575] [2020-11-22 13:01:35,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:01:35,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:01:35,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:01:35,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:01:35,521 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 5 states. [2020-11-22 13:01:39,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:01:39,804 INFO L93 Difference]: Finished difference Result 34 states and 48 transitions. [2020-11-22 13:01:39,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:01:39,806 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2020-11-22 13:01:39,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:01:39,814 INFO L225 Difference]: With dead ends: 34 [2020-11-22 13:01:39,814 INFO L226 Difference]: Without dead ends: 20 [2020-11-22 13:01:39,817 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:01:39,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-11-22 13:01:39,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 14. [2020-11-22 13:01:39,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-11-22 13:01:39,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2020-11-22 13:01:39,842 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 5 [2020-11-22 13:01:39,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:01:39,842 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2020-11-22 13:01:39,842 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:01:39,842 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-11-22 13:01:39,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-22 13:01:39,843 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:01:39,843 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-22 13:01:40,061 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-11-22 13:01:40,061 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:01:40,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:01:40,062 INFO L82 PathProgramCache]: Analyzing trace with hash -2026469936, now seen corresponding path program 1 times [2020-11-22 13:01:40,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:01:40,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545832806] [2020-11-22 13:01:40,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:01:40,078 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-22 13:01:40,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1124958395] [2020-11-22 13:01:40,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a2182f3-48f6-4b2a-897c-c6bf898ce2a7/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 [2020-11-22 13:01:40,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:01:40,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-22 13:01:40,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:01:40,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:01:40,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:01:40,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:01:40,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545832806] [2020-11-22 13:01:40,167 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-22 13:01:40,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124958395] [2020-11-22 13:01:40,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:01:40,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-22 13:01:40,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953544974] [2020-11-22 13:01:40,169 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 13:01:40,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:01:40,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 13:01:40,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:01:40,170 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 6 states. [2020-11-22 13:01:40,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:01:40,237 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2020-11-22 13:01:40,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:01:40,237 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2020-11-22 13:01:40,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:01:40,238 INFO L225 Difference]: With dead ends: 25 [2020-11-22 13:01:40,238 INFO L226 Difference]: Without dead ends: 21 [2020-11-22 13:01:40,239 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:01:40,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-22 13:01:40,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 17. [2020-11-22 13:01:40,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-22 13:01:40,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2020-11-22 13:01:40,243 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 6 [2020-11-22 13:01:40,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:01:40,244 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2020-11-22 13:01:40,244 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 13:01:40,244 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2020-11-22 13:01:40,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-22 13:01:40,244 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:01:40,244 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:01:40,462 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 13:01:40,463 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:01:40,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:01:40,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1770595639, now seen corresponding path program 1 times [2020-11-22 13:01:40,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:01:40,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697135221] [2020-11-22 13:01:40,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:01:40,476 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-22 13:01:40,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [627775381] [2020-11-22 13:01:40,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a2182f3-48f6-4b2a-897c-c6bf898ce2a7/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 [2020-11-22 13:01:40,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:01:40,530 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:01:40,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:01:40,542 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:01:40,561 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-22 13:01:40,561 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:01:40,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 13:01:40,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:01:40 BoogieIcfgContainer [2020-11-22 13:01:40,807 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:01:40,808 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:01:40,808 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:01:40,808 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:01:40,808 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:01:34" (3/4) ... [2020-11-22 13:01:40,810 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 13:01:40,847 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9a2182f3-48f6-4b2a-897c-c6bf898ce2a7/bin/utaipan/witness.graphml [2020-11-22 13:01:40,847 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:01:40,849 INFO L168 Benchmark]: Toolchain (without parser) took 6538.55 ms. Allocated memory was 79.7 MB in the beginning and 117.4 MB in the end (delta: 37.7 MB). Free memory was 47.5 MB in the beginning and 81.2 MB in the end (delta: -33.7 MB). Peak memory consumption was 3.8 MB. Max. memory is 16.1 GB. [2020-11-22 13:01:40,849 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 79.7 MB. Free memory was 56.3 MB in the beginning and 56.2 MB in the end (delta: 29.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:01:40,850 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.88 ms. Allocated memory was 79.7 MB in the beginning and 117.4 MB in the end (delta: 37.7 MB). Free memory was 47.3 MB in the beginning and 95.5 MB in the end (delta: -48.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:01:40,851 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.70 ms. Allocated memory is still 117.4 MB. Free memory was 95.5 MB in the beginning and 94.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:01:40,851 INFO L168 Benchmark]: Boogie Preprocessor took 21.27 ms. Allocated memory is still 117.4 MB. Free memory was 94.1 MB in the beginning and 92.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:01:40,853 INFO L168 Benchmark]: RCFGBuilder took 340.87 ms. Allocated memory is still 117.4 MB. Free memory was 92.7 MB in the beginning and 78.7 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-22 13:01:40,853 INFO L168 Benchmark]: TraceAbstraction took 5811.53 ms. Allocated memory is still 117.4 MB. Free memory was 78.0 MB in the beginning and 83.3 MB in the end (delta: -5.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:01:40,854 INFO L168 Benchmark]: Witness Printer took 39.78 ms. Allocated memory is still 117.4 MB. Free memory was 83.3 MB in the beginning and 81.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:01:40,857 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 79.7 MB. Free memory was 56.3 MB in the beginning and 56.2 MB in the end (delta: 29.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 267.88 ms. Allocated memory was 79.7 MB in the beginning and 117.4 MB in the end (delta: 37.7 MB). Free memory was 47.3 MB in the beginning and 95.5 MB in the end (delta: -48.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.70 ms. Allocated memory is still 117.4 MB. Free memory was 95.5 MB in the beginning and 94.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.27 ms. Allocated memory is still 117.4 MB. Free memory was 94.1 MB in the beginning and 92.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 340.87 ms. Allocated memory is still 117.4 MB. Free memory was 92.7 MB in the beginning and 78.7 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5811.53 ms. Allocated memory is still 117.4 MB. Free memory was 78.0 MB in the beginning and 83.3 MB in the end (delta: -5.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 39.78 ms. Allocated memory is still 117.4 MB. Free memory was 83.3 MB in the beginning and 81.2 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: 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++<100 [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: 5.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 14 SDslu, 62 SDs, 0 SdLazy, 33 SolverSat, 3 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s 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...