./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound20.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_7588b6f1-03ec-4b41-8b5a-9d7bc33bc04b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7588b6f1-03ec-4b41-8b5a-9d7bc33bc04b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7588b6f1-03ec-4b41-8b5a-9d7bc33bc04b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7588b6f1-03ec-4b41-8b5a-9d7bc33bc04b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound20.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7588b6f1-03ec-4b41-8b5a-9d7bc33bc04b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7588b6f1-03ec-4b41-8b5a-9d7bc33bc04b/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 0358af1f4d4ad3eb48f4b33f5dd033437b20d7db ........................................................................................................................................................................................................................................................................................................................................................... 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 02:59:15,340 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:59:15,343 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:59:15,407 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:59:15,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:59:15,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:59:15,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:59:15,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:59:15,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:59:15,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:59:15,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:59:15,420 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:59:15,420 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:59:15,421 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:59:15,423 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:59:15,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:59:15,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:59:15,426 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:59:15,428 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:59:15,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:59:15,432 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:59:15,434 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:59:15,435 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:59:15,436 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:59:15,439 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:59:15,440 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:59:15,440 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:59:15,441 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:59:15,442 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:59:15,443 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:59:15,443 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:59:15,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:59:15,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:59:15,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:59:15,447 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:59:15,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:59:15,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:59:15,449 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:59:15,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:59:15,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:59:15,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:59:15,452 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7588b6f1-03ec-4b41-8b5a-9d7bc33bc04b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 02:59:15,475 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:59:15,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:59:15,477 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:59:15,477 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:59:15,478 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:59:15,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:59:15,478 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 02:59:15,478 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:59:15,479 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 02:59:15,479 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:59:15,479 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 02:59:15,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 02:59:15,479 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 02:59:15,480 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 02:59:15,480 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:59:15,480 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:59:15,480 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 02:59:15,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:59:15,481 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:59:15,481 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 02:59:15,481 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 02:59:15,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:59:15,482 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:59:15,482 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 02:59:15,482 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 02:59:15,482 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:59:15,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 02:59:15,483 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 02:59:15,483 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:59:15,483 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_7588b6f1-03ec-4b41-8b5a-9d7bc33bc04b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7588b6f1-03ec-4b41-8b5a-9d7bc33bc04b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0358af1f4d4ad3eb48f4b33f5dd033437b20d7db [2020-11-28 02:59:15,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:59:15,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:59:15,769 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:59:15,771 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:59:15,772 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:59:15,773 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7588b6f1-03ec-4b41-8b5a-9d7bc33bc04b/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound20.c [2020-11-28 02:59:15,847 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7588b6f1-03ec-4b41-8b5a-9d7bc33bc04b/bin/uautomizer/data/0ab5cf838/818b622495234c55873d10f17ea31659/FLAG9b20d5ce7 [2020-11-28 02:59:16,304 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:59:16,305 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7588b6f1-03ec-4b41-8b5a-9d7bc33bc04b/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound20.c [2020-11-28 02:59:16,317 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7588b6f1-03ec-4b41-8b5a-9d7bc33bc04b/bin/uautomizer/data/0ab5cf838/818b622495234c55873d10f17ea31659/FLAG9b20d5ce7 [2020-11-28 02:59:16,672 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7588b6f1-03ec-4b41-8b5a-9d7bc33bc04b/bin/uautomizer/data/0ab5cf838/818b622495234c55873d10f17ea31659 [2020-11-28 02:59:16,675 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:59:16,676 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:59:16,678 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:59:16,678 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:59:16,681 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:59:16,682 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:59:16" (1/1) ... [2020-11-28 02:59:16,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67d4932a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16, skipping insertion in model container [2020-11-28 02:59:16,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:59:16" (1/1) ... [2020-11-28 02:59:16,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:59:16,705 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:59:16,910 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:59:16,919 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:59:16,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:59:16,960 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:59:16,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16 WrapperNode [2020-11-28 02:59:16,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:59:16,962 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:59:16,962 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:59:16,962 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:59:16,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16" (1/1) ... [2020-11-28 02:59:16,976 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16" (1/1) ... [2020-11-28 02:59:16,994 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:59:16,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:59:16,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:59:16,995 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:59:17,003 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16" (1/1) ... [2020-11-28 02:59:17,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16" (1/1) ... [2020-11-28 02:59:17,005 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16" (1/1) ... [2020-11-28 02:59:17,005 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16" (1/1) ... [2020-11-28 02:59:17,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16" (1/1) ... [2020-11-28 02:59:17,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16" (1/1) ... [2020-11-28 02:59:17,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16" (1/1) ... [2020-11-28 02:59:17,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:59:17,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:59:17,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:59:17,016 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:59:17,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7588b6f1-03ec-4b41-8b5a-9d7bc33bc04b/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 [2020-11-28 02:59:17,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 02:59:17,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 02:59:17,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:59:17,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:59:17,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_unsigned_int [2020-11-28 02:59:17,343 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:59:17,343 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-11-28 02:59:17,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:59:17 BoogieIcfgContainer [2020-11-28 02:59:17,345 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:59:17,346 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 02:59:17,346 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 02:59:17,350 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 02:59:17,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:59:16" (1/3) ... [2020-11-28 02:59:17,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1738017b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:59:17, skipping insertion in model container [2020-11-28 02:59:17,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:16" (2/3) ... [2020-11-28 02:59:17,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1738017b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:59:17, skipping insertion in model container [2020-11-28 02:59:17,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:59:17" (3/3) ... [2020-11-28 02:59:17,352 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-u_unwindbound20.c [2020-11-28 02:59:17,370 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 02:59:17,373 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-28 02:59:17,399 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-28 02:59:17,454 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 02:59:17,455 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 02:59:17,455 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 02:59:17,455 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:59:17,455 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:59:17,455 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 02:59:17,456 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:59:17,456 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 02:59:17,473 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-11-28 02:59:17,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 02:59:17,479 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:59:17,480 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-28 02:59:17,480 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:59:17,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:17,486 INFO L82 PathProgramCache]: Analyzing trace with hash 889571274, now seen corresponding path program 1 times [2020-11-28 02:59:17,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:17,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515800346] [2020-11-28 02:59:17,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:17,625 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 02:59:17,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1057631492] [2020-11-28 02:59:17,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7588b6f1-03ec-4b41-8b5a-9d7bc33bc04b/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 [2020-11-28 02:59:17,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:17,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 02:59:17,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:59:17,800 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 02:59:17,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515800346] [2020-11-28 02:59:17,801 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 02:59:17,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057631492] [2020-11-28 02:59:17,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:59:17,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 02:59:17,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289743412] [2020-11-28 02:59:17,806 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 02:59:17,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:59:17,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 02:59:17,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 02:59:17,852 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 4 states. [2020-11-28 02:59:17,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:59:17,980 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2020-11-28 02:59:17,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 02:59:17,983 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-11-28 02:59:17,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:59:17,991 INFO L225 Difference]: With dead ends: 39 [2020-11-28 02:59:17,991 INFO L226 Difference]: Without dead ends: 21 [2020-11-28 02:59:17,995 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:59:18,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-28 02:59:18,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 15. [2020-11-28 02:59:18,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-28 02:59:18,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2020-11-28 02:59:18,028 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 6 [2020-11-28 02:59:18,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:59:18,029 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2020-11-28 02:59:18,029 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 02:59:18,029 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2020-11-28 02:59:18,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 02:59:18,029 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:59:18,030 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:59:18,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-11-28 02:59:18,252 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:59:18,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:18,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1806863068, now seen corresponding path program 1 times [2020-11-28 02:59:18,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:18,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403711301] [2020-11-28 02:59:18,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:18,272 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 02:59:18,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [661774809] [2020-11-28 02:59:18,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7588b6f1-03ec-4b41-8b5a-9d7bc33bc04b/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 [2020-11-28 02:59:18,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:18,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 02:59:18,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:59:18,362 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 02:59:18,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403711301] [2020-11-28 02:59:18,362 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 02:59:18,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661774809] [2020-11-28 02:59:18,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:59:18,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:59:18,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951901360] [2020-11-28 02:59:18,364 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 02:59:18,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:59:18,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 02:59:18,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 02:59:18,366 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 4 states. [2020-11-28 02:59:18,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:59:18,383 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2020-11-28 02:59:18,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 02:59:18,384 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-28 02:59:18,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:59:18,385 INFO L225 Difference]: With dead ends: 19 [2020-11-28 02:59:18,385 INFO L226 Difference]: Without dead ends: 15 [2020-11-28 02:59:18,386 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 [2020-11-28 02:59:18,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-11-28 02:59:18,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-11-28 02:59:18,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-28 02:59:18,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2020-11-28 02:59:18,389 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 7 [2020-11-28 02:59:18,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:59:18,390 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2020-11-28 02:59:18,390 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 02:59:18,390 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2020-11-28 02:59:18,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 02:59:18,390 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:59:18,391 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:59:18,605 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 02:59:18,605 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:59:18,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:18,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1275448533, now seen corresponding path program 1 times [2020-11-28 02:59:18,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:18,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603816215] [2020-11-28 02:59:18,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:18,621 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 02:59:18,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1412060] [2020-11-28 02:59:18,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7588b6f1-03ec-4b41-8b5a-9d7bc33bc04b/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 [2020-11-28 02:59:18,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:59:18,674 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:59:18,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:59:18,689 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:59:18,718 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:59:18,718 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 02:59:18,940 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 02:59:18,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:59:18 BoogieIcfgContainer [2020-11-28 02:59:18,961 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 02:59:18,963 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:59:18,964 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:59:18,965 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:59:18,965 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:59:17" (3/4) ... [2020-11-28 02:59:18,967 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 02:59:19,029 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7588b6f1-03ec-4b41-8b5a-9d7bc33bc04b/bin/uautomizer/witness.graphml [2020-11-28 02:59:19,031 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:59:19,033 INFO L168 Benchmark]: Toolchain (without parser) took 2355.85 ms. Allocated memory is still 102.8 MB. Free memory was 73.3 MB in the beginning and 49.8 MB in the end (delta: 23.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:19,034 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 77.6 MB. Free memory was 36.1 MB in the beginning and 36.1 MB in the end (delta: 36.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:59:19,035 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.19 ms. Allocated memory is still 102.8 MB. Free memory was 73.1 MB in the beginning and 80.4 MB in the end (delta: -7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:19,036 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.46 ms. Allocated memory is still 102.8 MB. Free memory was 80.4 MB in the beginning and 79.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:19,036 INFO L168 Benchmark]: Boogie Preprocessor took 20.35 ms. Allocated memory is still 102.8 MB. Free memory was 79.1 MB in the beginning and 77.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:59:19,038 INFO L168 Benchmark]: RCFGBuilder took 328.74 ms. Allocated memory is still 102.8 MB. Free memory was 77.8 MB in the beginning and 65.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:19,038 INFO L168 Benchmark]: TraceAbstraction took 1614.82 ms. Allocated memory is still 102.8 MB. Free memory was 65.3 MB in the beginning and 51.9 MB in the end (delta: 13.4 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:19,039 INFO L168 Benchmark]: Witness Printer took 68.30 ms. Allocated memory is still 102.8 MB. Free memory was 51.9 MB in the beginning and 49.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:19,045 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 77.6 MB. Free memory was 36.1 MB in the beginning and 36.1 MB in the end (delta: 36.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 283.19 ms. Allocated memory is still 102.8 MB. Free memory was 73.1 MB in the beginning and 80.4 MB in the end (delta: -7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.46 ms. Allocated memory is still 102.8 MB. Free memory was 80.4 MB in the beginning and 79.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.35 ms. Allocated memory is still 102.8 MB. Free memory was 79.1 MB in the beginning and 77.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 328.74 ms. Allocated memory is still 102.8 MB. Free memory was 77.8 MB in the beginning and 65.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1614.82 ms. Allocated memory is still 102.8 MB. Free memory was 65.3 MB in the beginning and 51.9 MB in the end (delta: 13.4 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. * Witness Printer took 68.30 ms. Allocated memory is still 102.8 MB. Free memory was 51.9 MB in the beginning and 49.8 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_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++<20 [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: 1.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, 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, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 187 SizeOfPredicates, 5 NumberOfNonLiveVariables, 104 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...