./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound5.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_fa6ab8b0-017f-410d-8e90-ae5bb3118e2a/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fa6ab8b0-017f-410d-8e90-ae5bb3118e2a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fa6ab8b0-017f-410d-8e90-ae5bb3118e2a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fa6ab8b0-017f-410d-8e90-ae5bb3118e2a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound5.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fa6ab8b0-017f-410d-8e90-ae5bb3118e2a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fa6ab8b0-017f-410d-8e90-ae5bb3118e2a/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 2dcb64bcde8c68bb2c9a8df25838bda4481b72de ......................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fa6ab8b0-017f-410d-8e90-ae5bb3118e2a/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fa6ab8b0-017f-410d-8e90-ae5bb3118e2a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fa6ab8b0-017f-410d-8e90-ae5bb3118e2a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fa6ab8b0-017f-410d-8e90-ae5bb3118e2a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound5.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fa6ab8b0-017f-410d-8e90-ae5bb3118e2a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fa6ab8b0-017f-410d-8e90-ae5bb3118e2a/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 2dcb64bcde8c68bb2c9a8df25838bda4481b72de ..................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2020-11-30 01:55:50,251 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:55:50,254 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:55:50,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:55:50,322 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:55:50,328 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:55:50,331 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:55:50,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:55:50,338 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:55:50,345 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:55:50,347 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:55:50,349 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:55:50,350 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:55:50,358 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:55:50,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:55:50,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:55:50,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:55:50,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:55:50,372 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:55:50,381 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:55:50,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:55:50,385 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:55:50,388 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:55:50,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:55:50,400 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:55:50,400 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:55:50,401 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:55:50,403 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:55:50,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:55:50,406 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:55:50,406 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:55:50,408 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:55:50,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:55:50,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:55:50,413 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:55:50,414 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:55:50,415 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:55:50,415 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:55:50,415 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:55:50,418 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:55:50,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:55:50,423 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fa6ab8b0-017f-410d-8e90-ae5bb3118e2a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 01:55:50,477 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:55:50,477 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:55:50,479 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 01:55:50,479 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 01:55:50,479 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 01:55:50,480 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 01:55:50,480 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 01:55:50,480 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 01:55:50,480 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 01:55:50,481 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 01:55:50,482 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 01:55:50,482 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 01:55:50,483 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 01:55:50,483 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 01:55:50,483 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 01:55:50,484 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:55:50,485 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:55:50,485 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:55:50,485 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:55:50,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:55:50,486 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:55:50,486 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:55:50,486 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:55:50,486 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 01:55:50,487 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:55:50,487 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:55:50,487 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:55:50,488 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:55:50,488 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:55:50,490 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:55:50,490 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:55:50,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:55:50,491 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:55:50,491 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:55:50,491 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:55:50,492 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 01:55:50,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:55:50,492 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:55:50,492 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:55:50,493 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:55:50,493 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_fa6ab8b0-017f-410d-8e90-ae5bb3118e2a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fa6ab8b0-017f-410d-8e90-ae5bb3118e2a/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2dcb64bcde8c68bb2c9a8df25838bda4481b72de [2020-11-30 01:55:50,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:55:50,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:55:50,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:55:50,855 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:55:50,855 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:55:50,857 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fa6ab8b0-017f-410d-8e90-ae5bb3118e2a/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound5.c [2020-11-30 01:55:50,967 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fa6ab8b0-017f-410d-8e90-ae5bb3118e2a/bin/utaipan/data/fd9615cb7/7189f5da323d42388001157379a84842/FLAG19c560288 [2020-11-30 01:55:51,499 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:55:51,505 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fa6ab8b0-017f-410d-8e90-ae5bb3118e2a/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound5.c [2020-11-30 01:55:51,513 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fa6ab8b0-017f-410d-8e90-ae5bb3118e2a/bin/utaipan/data/fd9615cb7/7189f5da323d42388001157379a84842/FLAG19c560288 [2020-11-30 01:55:51,836 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fa6ab8b0-017f-410d-8e90-ae5bb3118e2a/bin/utaipan/data/fd9615cb7/7189f5da323d42388001157379a84842 [2020-11-30 01:55:51,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:55:51,840 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:55:51,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:55:51,857 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:55:51,861 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:55:51,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:55:51" (1/1) ... [2020-11-30 01:55:51,864 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d665686 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:51, skipping insertion in model container [2020-11-30 01:55:51,865 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:55:51" (1/1) ... [2020-11-30 01:55:51,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:55:51,902 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:55:52,145 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:55:52,156 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:55:52,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:55:52,203 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:55:52,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:52 WrapperNode [2020-11-30 01:55:52,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:55:52,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:55:52,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:55:52,206 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:55:52,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:52" (1/1) ... [2020-11-30 01:55:52,225 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:52" (1/1) ... [2020-11-30 01:55:52,252 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:55:52,253 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:55:52,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:55:52,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:55:52,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:52" (1/1) ... [2020-11-30 01:55:52,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:52" (1/1) ... [2020-11-30 01:55:52,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:52" (1/1) ... [2020-11-30 01:55:52,268 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:52" (1/1) ... [2020-11-30 01:55:52,276 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:52" (1/1) ... [2020-11-30 01:55:52,281 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:52" (1/1) ... [2020-11-30 01:55:52,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:52" (1/1) ... [2020-11-30 01:55:52,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:55:52,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:55:52,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:55:52,289 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:55:52,290 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fa6ab8b0-017f-410d-8e90-ae5bb3118e2a/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 [2020-11-30 01:55:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:55:52,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:55:52,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:55:52,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:55:53,083 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:55:53,084 INFO L298 CfgBuilder]: Removed 31 assume(true) statements. [2020-11-30 01:55:53,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:55:53 BoogieIcfgContainer [2020-11-30 01:55:53,087 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:55:53,092 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:55:53,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:55:53,098 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:55:53,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:55:51" (1/3) ... [2020-11-30 01:55:53,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40d8b97e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:55:53, skipping insertion in model container [2020-11-30 01:55:53,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:52" (2/3) ... [2020-11-30 01:55:53,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40d8b97e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:55:53, skipping insertion in model container [2020-11-30 01:55:53,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:55:53" (3/3) ... [2020-11-30 01:55:53,103 INFO L111 eAbstractionObserver]: Analyzing ICFG freire2_valuebound5.c [2020-11-30 01:55:53,121 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:55:53,126 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-11-30 01:55:53,140 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-11-30 01:55:53,183 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:55:53,184 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:55:53,184 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:55:53,184 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:55:53,185 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:55:53,185 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:55:53,185 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:55:53,185 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:55:53,204 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-11-30 01:55:53,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 01:55:53,219 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:55:53,220 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-30 01:55:53,220 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:55:53,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:55:53,228 INFO L82 PathProgramCache]: Analyzing trace with hash 4158921, now seen corresponding path program 1 times [2020-11-30 01:55:53,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:55:53,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830964642] [2020-11-30 01:55:53,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:55:53,365 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-30 01:55:53,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [570525795] [2020-11-30 01:55:53,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fa6ab8b0-017f-410d-8e90-ae5bb3118e2a/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 [2020-11-30 01:55:53,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:55:53,461 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:55:53,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:55:53,479 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:55:53,507 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-30 01:55:53,507 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 01:55:53,736 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-11-30 01:55:53,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:55:53 BoogieIcfgContainer [2020-11-30 01:55:53,768 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:55:53,770 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:55:53,770 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:55:53,770 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:55:53,771 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:55:53" (3/4) ... [2020-11-30 01:55:53,776 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 01:55:53,777 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:55:53,784 INFO L168 Benchmark]: Toolchain (without parser) took 1938.49 ms. Allocated memory is still 100.7 MB. Free memory was 68.3 MB in the beginning and 36.0 MB in the end (delta: 32.3 MB). Peak memory consumption was 30.7 MB. Max. memory is 16.1 GB. [2020-11-30 01:55:53,786 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 73.4 MB. Free memory was 34.4 MB in the beginning and 34.4 MB in the end (delta: 35.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:55:53,788 INFO L168 Benchmark]: CACSL2BoogieTranslator took 348.02 ms. Allocated memory is still 100.7 MB. Free memory was 68.0 MB in the beginning and 76.4 MB in the end (delta: -8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:55:53,789 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.78 ms. Allocated memory is still 100.7 MB. Free memory was 76.4 MB in the beginning and 74.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:55:53,791 INFO L168 Benchmark]: Boogie Preprocessor took 34.20 ms. Allocated memory is still 100.7 MB. Free memory was 74.8 MB in the beginning and 73.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:55:53,791 INFO L168 Benchmark]: RCFGBuilder took 799.31 ms. Allocated memory is still 100.7 MB. Free memory was 73.3 MB in the beginning and 54.4 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:55:53,793 INFO L168 Benchmark]: TraceAbstraction took 676.00 ms. Allocated memory is still 100.7 MB. Free memory was 54.4 MB in the beginning and 36.5 MB in the end (delta: 17.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-30 01:55:53,795 INFO L168 Benchmark]: Witness Printer took 7.50 ms. Allocated memory is still 100.7 MB. Free memory was 36.5 MB in the beginning and 36.0 MB in the end (delta: 492.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:55:53,806 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 73.4 MB. Free memory was 34.4 MB in the beginning and 34.4 MB in the end (delta: 35.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 348.02 ms. Allocated memory is still 100.7 MB. Free memory was 68.0 MB in the beginning and 76.4 MB in the end (delta: -8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.78 ms. Allocated memory is still 100.7 MB. Free memory was 76.4 MB in the beginning and 74.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.20 ms. Allocated memory is still 100.7 MB. Free memory was 74.8 MB in the beginning and 73.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 799.31 ms. Allocated memory is still 100.7 MB. Free memory was 73.3 MB in the beginning and 54.4 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 676.00 ms. Allocated memory is still 100.7 MB. Free memory was 54.4 MB in the beginning and 36.5 MB in the end (delta: 17.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Witness Printer took 7.50 ms. Allocated memory is still 100.7 MB. Free memory was 36.5 MB in the beginning and 36.0 MB in the end (delta: 492.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 34, overapproximation of someBinaryDOUBLEComparisonOperation at line 28. Possible FailurePath: [L25] int r; [L26] double a, x, s; [L27] a = __VERIFIER_nondet_double() [L14] COND FALSE !(!cond) [L29] x = a [L30] s = 3.25 [L31] r = 1 [L33] COND TRUE 1 [L17] COND TRUE !(cond) [L10] __assert_fail("0", "freire2.c", 10, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:55:56,658 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:55:56,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:55:56,706 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:55:56,707 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:55:56,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:55:56,711 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:55:56,714 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:55:56,717 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:55:56,719 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:55:56,720 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:55:56,722 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:55:56,723 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:55:56,725 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:55:56,726 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:55:56,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:55:56,730 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:55:56,731 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:55:56,734 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:55:56,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:55:56,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:55:56,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:55:56,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:55:56,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:55:56,749 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:55:56,749 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:55:56,750 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:55:56,751 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:55:56,752 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:55:56,754 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:55:56,754 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:55:56,755 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:55:56,757 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:55:56,758 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:55:56,760 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:55:56,760 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:55:56,761 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:55:56,762 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:55:56,762 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:55:56,763 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:55:56,764 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:55:56,765 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fa6ab8b0-017f-410d-8e90-ae5bb3118e2a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-30 01:55:56,794 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:55:56,795 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:55:56,796 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 01:55:56,796 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 01:55:56,796 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 01:55:56,797 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 01:55:56,797 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 01:55:56,797 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 01:55:56,797 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 01:55:56,798 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:55:56,799 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:55:56,799 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:55:56,799 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:55:56,799 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:55:56,800 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:55:56,800 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:55:56,800 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 01:55:56,800 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 01:55:56,801 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 01:55:56,801 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:55:56,801 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:55:56,801 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:55:56,802 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:55:56,802 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:55:56,802 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:55:56,803 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:55:56,803 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:55:56,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:55:56,803 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:55:56,804 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:55:56,804 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:55:56,804 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-30 01:55:56,804 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 01:55:56,805 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:55:56,805 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:55:56,805 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:55:56,805 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_fa6ab8b0-017f-410d-8e90-ae5bb3118e2a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fa6ab8b0-017f-410d-8e90-ae5bb3118e2a/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2dcb64bcde8c68bb2c9a8df25838bda4481b72de [2020-11-30 01:55:57,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:55:57,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:55:57,273 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:55:57,275 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:55:57,276 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:55:57,277 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fa6ab8b0-017f-410d-8e90-ae5bb3118e2a/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound5.c [2020-11-30 01:55:57,374 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fa6ab8b0-017f-410d-8e90-ae5bb3118e2a/bin/utaipan/data/415f80ab6/3e725f9f50464c1b96a35421085c951a/FLAGfc9b571e9 [2020-11-30 01:55:58,067 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:55:58,073 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fa6ab8b0-017f-410d-8e90-ae5bb3118e2a/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound5.c [2020-11-30 01:55:58,081 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fa6ab8b0-017f-410d-8e90-ae5bb3118e2a/bin/utaipan/data/415f80ab6/3e725f9f50464c1b96a35421085c951a/FLAGfc9b571e9 [2020-11-30 01:55:58,404 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fa6ab8b0-017f-410d-8e90-ae5bb3118e2a/bin/utaipan/data/415f80ab6/3e725f9f50464c1b96a35421085c951a [2020-11-30 01:55:58,407 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:55:58,409 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:55:58,432 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:55:58,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:55:58,437 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:55:58,439 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:55:58" (1/1) ... [2020-11-30 01:55:58,441 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@382b667c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:58, skipping insertion in model container [2020-11-30 01:55:58,441 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:55:58" (1/1) ... [2020-11-30 01:55:58,451 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:55:58,475 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:55:58,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:55:58,709 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:55:58,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:55:58,819 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:55:58,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:58 WrapperNode [2020-11-30 01:55:58,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:55:58,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:55:58,822 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:55:58,822 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:55:58,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:58" (1/1) ... [2020-11-30 01:55:58,844 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:58" (1/1) ... [2020-11-30 01:55:58,872 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:55:58,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:55:58,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:55:58,874 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:55:58,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:58" (1/1) ... [2020-11-30 01:55:58,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:58" (1/1) ... [2020-11-30 01:55:58,888 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:58" (1/1) ... [2020-11-30 01:55:58,889 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:58" (1/1) ... [2020-11-30 01:55:58,900 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:58" (1/1) ... [2020-11-30 01:55:58,905 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:58" (1/1) ... [2020-11-30 01:55:58,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:58" (1/1) ... [2020-11-30 01:55:58,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:55:58,914 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:55:58,914 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:55:58,915 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:55:58,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fa6ab8b0-017f-410d-8e90-ae5bb3118e2a/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 [2020-11-30 01:55:59,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 01:55:59,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:55:59,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:55:59,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:56:10,197 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:56:10,197 INFO L298 CfgBuilder]: Removed 31 assume(true) statements. [2020-11-30 01:56:10,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:56:10 BoogieIcfgContainer [2020-11-30 01:56:10,198 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:56:10,200 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:56:10,200 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:56:10,205 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:56:10,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:55:58" (1/3) ... [2020-11-30 01:56:10,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@290dc7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:56:10, skipping insertion in model container [2020-11-30 01:56:10,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:55:58" (2/3) ... [2020-11-30 01:56:10,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@290dc7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:56:10, skipping insertion in model container [2020-11-30 01:56:10,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:56:10" (3/3) ... [2020-11-30 01:56:10,214 INFO L111 eAbstractionObserver]: Analyzing ICFG freire2_valuebound5.c [2020-11-30 01:56:10,226 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:56:10,230 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-11-30 01:56:10,242 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-11-30 01:56:10,280 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:56:10,281 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:56:10,281 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:56:10,282 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:56:10,283 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:56:10,283 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:56:10,283 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:56:10,283 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:56:10,296 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-11-30 01:56:10,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 01:56:10,302 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:56:10,303 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:56:10,303 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:56:10,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:56:10,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1804972333, now seen corresponding path program 1 times [2020-11-30 01:56:10,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 01:56:10,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1742681582] [2020-11-30 01:56:10,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fa6ab8b0-017f-410d-8e90-ae5bb3118e2a/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-30 01:56:10,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:56:10,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 01:56:10,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:56:10,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:56:10,540 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:56:10,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:56:10,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1742681582] [2020-11-30 01:56:10,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:56:10,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 01:56:10,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91520348] [2020-11-30 01:56:10,550 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:56:10,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 01:56:10,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:56:10,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:56:10,573 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2020-11-30 01:56:10,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:56:10,595 INFO L93 Difference]: Finished difference Result 63 states and 80 transitions. [2020-11-30 01:56:10,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:56:10,597 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-11-30 01:56:10,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:56:10,621 INFO L225 Difference]: With dead ends: 63 [2020-11-30 01:56:10,622 INFO L226 Difference]: Without dead ends: 29 [2020-11-30 01:56:10,628 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:56:10,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-11-30 01:56:10,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-11-30 01:56:10,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-30 01:56:10,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2020-11-30 01:56:10,674 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 7 [2020-11-30 01:56:10,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:56:10,674 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2020-11-30 01:56:10,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:56:10,675 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2020-11-30 01:56:10,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 01:56:10,675 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:56:10,676 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:56:10,892 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 01:56:10,892 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:56:10,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:56:10,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1806819375, now seen corresponding path program 1 times [2020-11-30 01:56:10,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 01:56:10,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1511816459] [2020-11-30 01:56:10,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fa6ab8b0-017f-410d-8e90-ae5bb3118e2a/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-30 01:56:11,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:56:11,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 01:56:11,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:56:11,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:56:11,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:56:15,165 WARN L193 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-11-30 01:56:15,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:56:15,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1511816459] [2020-11-30 01:56:15,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:56:15,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-11-30 01:56:15,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292967210] [2020-11-30 01:56:15,196 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 01:56:15,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 01:56:15,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 01:56:15,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:56:15,198 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand 7 states. [2020-11-30 01:56:33,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:56:33,027 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2020-11-30 01:56:33,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 01:56:33,028 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 7 [2020-11-30 01:56:33,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:56:33,029 INFO L225 Difference]: With dead ends: 38 [2020-11-30 01:56:33,029 INFO L226 Difference]: Without dead ends: 36 [2020-11-30 01:56:33,030 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-11-30 01:56:33,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-30 01:56:33,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2020-11-30 01:56:33,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-30 01:56:33,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2020-11-30 01:56:33,039 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 7 [2020-11-30 01:56:33,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:56:33,040 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2020-11-30 01:56:33,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 01:56:33,040 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2020-11-30 01:56:33,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 01:56:33,041 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:56:33,041 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:56:33,244 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 01:56:33,245 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:56:33,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:56:33,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1186818322, now seen corresponding path program 1 times [2020-11-30 01:56:33,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 01:56:33,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1922971512] [2020-11-30 01:56:33,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fa6ab8b0-017f-410d-8e90-ae5bb3118e2a/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-30 01:56:34,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:56:34,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-30 01:56:34,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:56:34,176 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:56:34,310 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 01:56:35,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:56:35,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:56:54,161 WARN L193 SmtUtils]: Spent 4.09 s on a formula simplification that was a NOOP. DAG size: 22 [2020-11-30 01:57:03,421 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 10 [2020-11-30 01:57:15,355 WARN L193 SmtUtils]: Spent 2.07 s on a formula simplification that was a NOOP. DAG size: 13 [2020-11-30 01:57:15,377 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-11-30 01:57:15,378 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 01:57:16,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:57:16,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1922971512] [2020-11-30 01:57:16,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:57:16,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2020-11-30 01:57:16,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66924254] [2020-11-30 01:57:16,662 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-30 01:57:16,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 01:57:16,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-30 01:57:16,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=72, Unknown=7, NotChecked=0, Total=110 [2020-11-30 01:57:16,664 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 11 states. [2020-11-30 01:57:27,536 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 18 [2020-11-30 01:57:28,160 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 21 [2020-11-30 01:58:00,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:58:00,846 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2020-11-30 01:58:00,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 01:58:00,847 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 9 [2020-11-30 01:58:00,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:58:00,848 INFO L225 Difference]: With dead ends: 36 [2020-11-30 01:58:00,848 INFO L226 Difference]: Without dead ends: 34 [2020-11-30 01:58:00,849 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 44.0s TimeCoverageRelationStatistics Valid=74, Invalid=128, Unknown=8, NotChecked=0, Total=210 [2020-11-30 01:58:00,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-30 01:58:00,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2020-11-30 01:58:00,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-11-30 01:58:00,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2020-11-30 01:58:00,859 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 9 [2020-11-30 01:58:00,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:58:00,859 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2020-11-30 01:58:00,860 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-30 01:58:00,860 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2020-11-30 01:58:00,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 01:58:00,861 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:58:00,861 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:58:01,083 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 01:58:01,084 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:58:01,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:58:01,084 INFO L82 PathProgramCache]: Analyzing trace with hash -1928706379, now seen corresponding path program 1 times [2020-11-30 01:58:01,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 01:58:01,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1160848211] [2020-11-30 01:58:01,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fa6ab8b0-017f-410d-8e90-ae5bb3118e2a/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-30 02:00:18,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 02:00:18,180 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 02:00:21,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 02:00:21,634 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 02:00:21,780 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-30 02:00:21,780 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 02:00:21,981 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-30 02:00:22,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 02:00:22 BoogieIcfgContainer [2020-11-30 02:00:22,008 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 02:00:22,008 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 02:00:22,008 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 02:00:22,009 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 02:00:22,009 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:56:10" (3/4) ... [2020-11-30 02:00:22,011 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 02:00:22,050 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fa6ab8b0-017f-410d-8e90-ae5bb3118e2a/bin/utaipan/witness.graphml [2020-11-30 02:00:22,050 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 02:00:22,052 INFO L168 Benchmark]: Toolchain (without parser) took 263642.52 ms. Allocated memory was 54.5 MB in the beginning and 73.4 MB in the end (delta: 18.9 MB). Free memory was 32.2 MB in the beginning and 40.3 MB in the end (delta: -8.2 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. [2020-11-30 02:00:22,052 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 54.5 MB. Free memory was 37.1 MB in the beginning and 37.1 MB in the end (delta: 37.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:00:22,053 INFO L168 Benchmark]: CACSL2BoogieTranslator took 388.46 ms. Allocated memory was 54.5 MB in the beginning and 73.4 MB in the end (delta: 18.9 MB). Free memory was 32.0 MB in the beginning and 56.1 MB in the end (delta: -24.1 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. [2020-11-30 02:00:22,053 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.34 ms. Allocated memory is still 73.4 MB. Free memory was 56.1 MB in the beginning and 54.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:00:22,054 INFO L168 Benchmark]: Boogie Preprocessor took 40.12 ms. Allocated memory is still 73.4 MB. Free memory was 54.3 MB in the beginning and 53.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:00:22,054 INFO L168 Benchmark]: RCFGBuilder took 11284.42 ms. Allocated memory is still 73.4 MB. Free memory was 52.8 MB in the beginning and 54.7 MB in the end (delta: -2.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. [2020-11-30 02:00:22,055 INFO L168 Benchmark]: TraceAbstraction took 251807.89 ms. Allocated memory is still 73.4 MB. Free memory was 54.4 MB in the beginning and 42.5 MB in the end (delta: 12.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2020-11-30 02:00:22,056 INFO L168 Benchmark]: Witness Printer took 42.19 ms. Allocated memory is still 73.4 MB. Free memory was 42.5 MB in the beginning and 40.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:00:22,059 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 54.5 MB. Free memory was 37.1 MB in the beginning and 37.1 MB in the end (delta: 37.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 388.46 ms. Allocated memory was 54.5 MB in the beginning and 73.4 MB in the end (delta: 18.9 MB). Free memory was 32.0 MB in the beginning and 56.1 MB in the end (delta: -24.1 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.34 ms. Allocated memory is still 73.4 MB. Free memory was 56.1 MB in the beginning and 54.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.12 ms. Allocated memory is still 73.4 MB. Free memory was 54.3 MB in the beginning and 53.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 11284.42 ms. Allocated memory is still 73.4 MB. Free memory was 52.8 MB in the beginning and 54.7 MB in the end (delta: -2.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 251807.89 ms. Allocated memory is still 73.4 MB. Free memory was 54.4 MB in the beginning and 42.5 MB in the end (delta: 12.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. * Witness Printer took 42.19 ms. Allocated memory is still 73.4 MB. Free memory was 42.5 MB in the beginning and 40.3 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: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L25] int r; [L26] double a, x, s; [L27] a = __VERIFIER_nondet_double() [L14] COND FALSE !(!cond) [L29] x = a [L30] s = 3.25 [L31] r = 1 [L33] COND TRUE 1 [L17] COND FALSE !(!(cond)) [L17] COND FALSE !(!(cond)) [L17] COND TRUE !(cond) [L10] __assert_fail("0", "freire2.c", 10, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 251.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 62.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 80 SDtfs, 37 SDslu, 140 SDs, 0 SdLazy, 95 SolverSat, 16 SolverUnsat, 13 SolverUnknown, 0 SolverNotchecked, 57.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 48.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 138.0s SatisfiabilityAnalysisTime, 46.7s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 2520 SizeOfPredicates, 13 NumberOfNonLiveVariables, 102 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...