./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound50.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_628834e1-dfac-4764-9ae6-d59839f33815/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_628834e1-dfac-4764-9ae6-d59839f33815/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_628834e1-dfac-4764-9ae6-d59839f33815/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_628834e1-dfac-4764-9ae6-d59839f33815/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound50.c -s /tmp/vcloud-vcloud-master/worker/run_dir_628834e1-dfac-4764-9ae6-d59839f33815/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_628834e1-dfac-4764-9ae6-d59839f33815/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8a2ec839e8379c69d2de651867113e9bff3fa73f .......................................................................................................................................................................................................................................................................................................................................................... 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 [2020-11-29 18:11:12,947 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:11:12,950 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:11:13,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:11:13,020 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:11:13,026 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:11:13,029 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:11:13,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:11:13,038 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:11:13,045 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:11:13,047 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:11:13,049 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:11:13,050 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:11:13,054 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:11:13,056 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:11:13,059 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:11:13,061 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:11:13,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:11:13,070 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:11:13,079 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:11:13,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:11:13,084 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:11:13,087 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:11:13,088 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:11:13,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:11:13,100 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:11:13,100 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:11:13,103 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:11:13,104 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:11:13,105 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:11:13,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:11:13,108 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:11:13,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:11:13,112 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:11:13,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:11:13,114 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:11:13,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:11:13,116 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:11:13,116 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:11:13,117 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:11:13,119 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:11:13,120 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_628834e1-dfac-4764-9ae6-d59839f33815/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 18:11:13,170 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:11:13,171 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:11:13,173 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:11:13,174 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:11:13,174 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:11:13,175 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:11:13,175 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:11:13,175 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:11:13,176 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:11:13,176 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:11:13,178 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 18:11:13,178 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:11:13,178 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 18:11:13,179 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:11:13,179 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:11:13,179 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:11:13,180 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 18:11:13,180 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:11:13,181 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:11:13,181 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:11:13,181 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:11:13,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:11:13,182 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:11:13,182 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:11:13,183 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 18:11:13,183 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:11:13,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 18:11:13,184 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 18:11:13,184 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:11:13,185 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_628834e1-dfac-4764-9ae6-d59839f33815/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_628834e1-dfac-4764-9ae6-d59839f33815/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a2ec839e8379c69d2de651867113e9bff3fa73f [2020-11-29 18:11:13,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:11:13,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:11:13,582 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:11:13,584 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:11:13,585 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:11:13,586 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_628834e1-dfac-4764-9ae6-d59839f33815/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound50.c [2020-11-29 18:11:13,690 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_628834e1-dfac-4764-9ae6-d59839f33815/bin/uautomizer/data/97ad13729/6f07ee09f4e944d5a309cce7c3c6a6f8/FLAG6648af21e [2020-11-29 18:11:14,246 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:11:14,247 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_628834e1-dfac-4764-9ae6-d59839f33815/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound50.c [2020-11-29 18:11:14,255 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_628834e1-dfac-4764-9ae6-d59839f33815/bin/uautomizer/data/97ad13729/6f07ee09f4e944d5a309cce7c3c6a6f8/FLAG6648af21e [2020-11-29 18:11:14,614 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_628834e1-dfac-4764-9ae6-d59839f33815/bin/uautomizer/data/97ad13729/6f07ee09f4e944d5a309cce7c3c6a6f8 [2020-11-29 18:11:14,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:11:14,630 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:11:14,637 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:11:14,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:11:14,643 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:11:14,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:11:14" (1/1) ... [2020-11-29 18:11:14,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27409626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:14, skipping insertion in model container [2020-11-29 18:11:14,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:11:14" (1/1) ... [2020-11-29 18:11:14,657 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:11:14,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:11:14,897 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:11:14,908 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:11:14,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:11:14,943 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:11:14,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:14 WrapperNode [2020-11-29 18:11:14,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:11:14,946 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:11:14,946 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:11:14,947 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:11:14,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:14" (1/1) ... [2020-11-29 18:11:14,965 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:14" (1/1) ... [2020-11-29 18:11:14,983 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:11:14,985 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:11:14,985 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:11:14,985 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:11:14,995 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:14" (1/1) ... [2020-11-29 18:11:14,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:14" (1/1) ... [2020-11-29 18:11:14,997 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:14" (1/1) ... [2020-11-29 18:11:14,998 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:14" (1/1) ... [2020-11-29 18:11:15,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:14" (1/1) ... [2020-11-29 18:11:15,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:14" (1/1) ... [2020-11-29 18:11:15,009 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:14" (1/1) ... [2020-11-29 18:11:15,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:11:15,013 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:11:15,013 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:11:15,013 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:11:15,014 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_628834e1-dfac-4764-9ae6-d59839f33815/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:11:15,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:11:15,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:11:15,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:11:15,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:11:15,360 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:11:15,360 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-11-29 18:11:15,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:11:15 BoogieIcfgContainer [2020-11-29 18:11:15,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:11:15,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 18:11:15,365 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 18:11:15,369 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 18:11:15,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:11:14" (1/3) ... [2020-11-29 18:11:15,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5119fe2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:11:15, skipping insertion in model container [2020-11-29 18:11:15,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:11:14" (2/3) ... [2020-11-29 18:11:15,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5119fe2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:11:15, skipping insertion in model container [2020-11-29 18:11:15,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:11:15" (3/3) ... [2020-11-29 18:11:15,374 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-u_unwindbound50.c [2020-11-29 18:11:15,389 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 18:11:15,394 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-29 18:11:15,409 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-29 18:11:15,438 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 18:11:15,439 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 18:11:15,439 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 18:11:15,439 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:11:15,440 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:11:15,440 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 18:11:15,440 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:11:15,440 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 18:11:15,457 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-11-29 18:11:15,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 18:11:15,463 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:11:15,463 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-29 18:11:15,464 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:11:15,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:11:15,470 INFO L82 PathProgramCache]: Analyzing trace with hash 889571274, now seen corresponding path program 1 times [2020-11-29 18:11:15,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:11:15,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830547241] [2020-11-29 18:11:15,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:11:15,587 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 18:11:15,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1974177759] [2020-11-29 18:11:15,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_628834e1-dfac-4764-9ae6-d59839f33815/bin/uautomizer/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 [2020-11-29 18:11:15,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:11:15,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 18:11:15,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:11:15,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:11:15,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830547241] [2020-11-29 18:11:15,856 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 18:11:15,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974177759] [2020-11-29 18:11:15,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:11:15,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:11:15,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997250656] [2020-11-29 18:11:15,865 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:11:15,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:11:15,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:11:15,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:11:15,889 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 4 states. [2020-11-29 18:11:16,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:11:16,106 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2020-11-29 18:11:16,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:11:16,109 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-11-29 18:11:16,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:11:16,120 INFO L225 Difference]: With dead ends: 39 [2020-11-29 18:11:16,120 INFO L226 Difference]: Without dead ends: 21 [2020-11-29 18:11:16,124 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:11:16,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-29 18:11:16,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 15. [2020-11-29 18:11:16,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-29 18:11:16,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2020-11-29 18:11:16,165 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 6 [2020-11-29 18:11:16,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:11:16,165 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2020-11-29 18:11:16,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:11:16,166 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2020-11-29 18:11:16,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 18:11:16,167 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:11:16,167 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:11:16,381 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-11-29 18:11:16,382 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:11:16,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:11:16,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1806863068, now seen corresponding path program 1 times [2020-11-29 18:11:16,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:11:16,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416529553] [2020-11-29 18:11:16,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:11:16,410 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 18:11:16,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1646741000] [2020-11-29 18:11:16,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_628834e1-dfac-4764-9ae6-d59839f33815/bin/uautomizer/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 [2020-11-29 18:11:16,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:11:16,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 18:11:16,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:11:16,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:11:16,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416529553] [2020-11-29 18:11:16,519 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 18:11:16,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646741000] [2020-11-29 18:11:16,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:11:16,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:11:16,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473853605] [2020-11-29 18:11:16,521 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:11:16,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:11:16,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:11:16,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:11:16,523 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 4 states. [2020-11-29 18:11:16,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:11:16,571 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2020-11-29 18:11:16,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:11:16,574 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-29 18:11:16,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:11:16,575 INFO L225 Difference]: With dead ends: 19 [2020-11-29 18:11:16,575 INFO L226 Difference]: Without dead ends: 15 [2020-11-29 18:11:16,576 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:11:16,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-11-29 18:11:16,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-11-29 18:11:16,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-29 18:11:16,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2020-11-29 18:11:16,581 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 7 [2020-11-29 18:11:16,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:11:16,581 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2020-11-29 18:11:16,581 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:11:16,582 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2020-11-29 18:11:16,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 18:11:16,582 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:11:16,582 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:11:16,783 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:11:16,783 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:11:16,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:11:16,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1275448533, now seen corresponding path program 1 times [2020-11-29 18:11:16,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:11:16,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931423433] [2020-11-29 18:11:16,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:11:16,804 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 18:11:16,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [685942957] [2020-11-29 18:11:16,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_628834e1-dfac-4764-9ae6-d59839f33815/bin/uautomizer/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 [2020-11-29 18:11:16,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:11:16,874 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:11:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:11:16,894 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:11:16,929 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:11:16,930 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 18:11:17,156 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:11:17,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:11:17 BoogieIcfgContainer [2020-11-29 18:11:17,191 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 18:11:17,192 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:11:17,192 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:11:17,193 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:11:17,193 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:11:15" (3/4) ... [2020-11-29 18:11:17,196 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 18:11:17,250 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_628834e1-dfac-4764-9ae6-d59839f33815/bin/uautomizer/witness.graphml [2020-11-29 18:11:17,250 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:11:17,252 INFO L168 Benchmark]: Toolchain (without parser) took 2620.48 ms. Allocated memory is still 104.9 MB. Free memory was 77.8 MB in the beginning and 49.7 MB in the end (delta: 28.1 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. [2020-11-29 18:11:17,253 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 75.5 MB. Free memory is still 38.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:11:17,254 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.57 ms. Allocated memory is still 104.9 MB. Free memory was 77.6 MB in the beginning and 82.4 MB in the end (delta: -4.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:11:17,255 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.84 ms. Allocated memory is still 104.9 MB. Free memory was 82.4 MB in the beginning and 81.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:11:17,256 INFO L168 Benchmark]: Boogie Preprocessor took 27.18 ms. Allocated memory is still 104.9 MB. Free memory was 81.2 MB in the beginning and 79.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:11:17,257 INFO L168 Benchmark]: RCFGBuilder took 349.89 ms. Allocated memory is still 104.9 MB. Free memory was 79.9 MB in the beginning and 68.2 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 18:11:17,258 INFO L168 Benchmark]: TraceAbstraction took 1826.88 ms. Allocated memory is still 104.9 MB. Free memory was 67.8 MB in the beginning and 51.8 MB in the end (delta: 16.0 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.1 GB. [2020-11-29 18:11:17,259 INFO L168 Benchmark]: Witness Printer took 58.06 ms. Allocated memory is still 104.9 MB. Free memory was 51.8 MB in the beginning and 49.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:11:17,263 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 75.5 MB. Free memory is still 38.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 307.57 ms. Allocated memory is still 104.9 MB. Free memory was 77.6 MB in the beginning and 82.4 MB in the end (delta: -4.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.84 ms. Allocated memory is still 104.9 MB. Free memory was 82.4 MB in the beginning and 81.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.18 ms. Allocated memory is still 104.9 MB. Free memory was 81.2 MB in the beginning and 79.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 349.89 ms. Allocated memory is still 104.9 MB. Free memory was 79.9 MB in the beginning and 68.2 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1826.88 ms. Allocated memory is still 104.9 MB. Free memory was 67.8 MB in the beginning and 51.8 MB in the end (delta: 16.0 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.1 GB. * Witness Printer took 58.06 ms. Allocated memory is still 104.9 MB. Free memory was 51.8 MB in the beginning and 49.7 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; VAL [counter=0] [L24] unsigned int z, k; [L25] long long x, y, c; [L26] z = __VERIFIER_nondet_uint() [L27] k = __VERIFIER_nondet_uint() [L29] x = 1 [L30] y = z [L31] c = 1 VAL [counter=0] [L33] EXPR counter++ VAL [counter=1] [L33] COND TRUE counter++<50 [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, 16 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 27 SDtfs, 8 SDslu, 42 SDs, 0 SdLazy, 24 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, 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, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 187 SizeOfPredicates, 5 NumberOfNonLiveVariables, 112 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...