./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b4748773-5a76-4acd-91f0-082d83366a77/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b4748773-5a76-4acd-91f0-082d83366a77/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b4748773-5a76-4acd-91f0-082d83366a77/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b4748773-5a76-4acd-91f0-082d83366a77/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b4748773-5a76-4acd-91f0-082d83366a77/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b4748773-5a76-4acd-91f0-082d83366a77/bin/ukojak --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fbfa3bfac4b511c6b363106645da3687422db2a8 .................................................................................................................................................................................................................................................................................................................................................. 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 00:10:12,112 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:10:12,115 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:10:12,219 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:10:12,220 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:10:12,222 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:10:12,225 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:10:12,228 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:10:12,233 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:10:12,235 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:10:12,237 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:10:12,239 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:10:12,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:10:12,242 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:10:12,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:10:12,246 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:10:12,247 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:10:12,249 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:10:12,252 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:10:12,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:10:12,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:10:12,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:10:12,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:10:12,265 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:10:12,270 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:10:12,271 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:10:12,271 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:10:12,273 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:10:12,274 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:10:12,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:10:12,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:10:12,278 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:10:12,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:10:12,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:10:12,284 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:10:12,284 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:10:12,286 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:10:12,286 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:10:12,287 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:10:12,289 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:10:12,290 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:10:12,299 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b4748773-5a76-4acd-91f0-082d83366a77/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-30 00:10:12,360 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:10:12,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:10:12,363 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 00:10:12,363 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-30 00:10:12,364 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:10:12,365 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:10:12,365 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:10:12,365 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:10:12,366 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:10:12,366 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:10:12,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:10:12,368 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:10:12,369 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:10:12,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:10:12,369 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:10:12,369 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:10:12,370 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:10:12,371 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:10:12,371 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-30 00:10:12,371 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-30 00:10:12,372 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:10:12,372 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:10:12,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-30 00:10:12,373 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:10:12,373 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:10:12,374 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:10:12,374 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-30 00:10:12,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:10:12,375 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:10:12,377 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_b4748773-5a76-4acd-91f0-082d83366a77/bin/ukojak/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b4748773-5a76-4acd-91f0-082d83366a77/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fbfa3bfac4b511c6b363106645da3687422db2a8 [2020-11-30 00:10:12,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:10:12,796 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:10:12,800 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:10:12,801 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:10:12,810 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:10:12,812 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b4748773-5a76-4acd-91f0-082d83366a77/bin/ukojak/../../sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound1.c [2020-11-30 00:10:12,914 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b4748773-5a76-4acd-91f0-082d83366a77/bin/ukojak/data/cab119548/1a176cd4ea0647c8813d00debf44846e/FLAG7a950452c [2020-11-30 00:10:13,624 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:10:13,626 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b4748773-5a76-4acd-91f0-082d83366a77/sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound1.c [2020-11-30 00:10:13,638 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b4748773-5a76-4acd-91f0-082d83366a77/bin/ukojak/data/cab119548/1a176cd4ea0647c8813d00debf44846e/FLAG7a950452c [2020-11-30 00:10:13,982 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b4748773-5a76-4acd-91f0-082d83366a77/bin/ukojak/data/cab119548/1a176cd4ea0647c8813d00debf44846e [2020-11-30 00:10:13,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:10:13,987 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:10:13,990 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:10:13,990 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:10:14,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:10:14,005 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:10:13" (1/1) ... [2020-11-30 00:10:14,009 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e5c07c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:14, skipping insertion in model container [2020-11-30 00:10:14,009 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:10:13" (1/1) ... [2020-11-30 00:10:14,019 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:10:14,047 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:10:14,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:10:14,363 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:10:14,406 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:10:14,430 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:10:14,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:14 WrapperNode [2020-11-30 00:10:14,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:10:14,434 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:10:14,434 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:10:14,434 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:10:14,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:14" (1/1) ... [2020-11-30 00:10:14,467 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:14" (1/1) ... [2020-11-30 00:10:14,501 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:10:14,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:10:14,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:10:14,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:10:14,515 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:14" (1/1) ... [2020-11-30 00:10:14,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:14" (1/1) ... [2020-11-30 00:10:14,521 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:14" (1/1) ... [2020-11-30 00:10:14,521 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:14" (1/1) ... [2020-11-30 00:10:14,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:14" (1/1) ... [2020-11-30 00:10:14,546 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:14" (1/1) ... [2020-11-30 00:10:14,554 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:14" (1/1) ... [2020-11-30 00:10:14,560 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:10:14,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:10:14,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:10:14,564 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:10:14,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4748773-5a76-4acd-91f0-082d83366a77/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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:10000 [2020-11-30 00:10:14,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:10:14,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:10:14,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:10:14,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:10:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-30 00:10:14,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-30 00:10:15,148 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:10:15,148 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-30 00:10:15,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:10:15 BoogieIcfgContainer [2020-11-30 00:10:15,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:10:15,152 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-30 00:10:15,152 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-30 00:10:15,170 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-30 00:10:15,170 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:10:15" (1/1) ... [2020-11-30 00:10:15,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:10:15,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:15,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 34 transitions. [2020-11-30 00:10:15,229 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2020-11-30 00:10:15,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 00:10:15,231 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:15,381 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 00:10:15,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:15,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2020-11-30 00:10:15,394 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2020-11-30 00:10:15,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 00:10:15,395 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:15,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:15,556 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 00:10:16,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:16,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 27 states and 45 transitions. [2020-11-30 00:10:16,093 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 45 transitions. [2020-11-30 00:10:16,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 00:10:16,097 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:16,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:16,293 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 00:10:16,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:16,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 29 states and 48 transitions. [2020-11-30 00:10:16,588 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 48 transitions. [2020-11-30 00:10:16,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 00:10:16,589 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:16,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:16,762 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:10:17,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:17,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 33 states and 57 transitions. [2020-11-30 00:10:17,276 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 57 transitions. [2020-11-30 00:10:17,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 00:10:17,277 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:17,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:17,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-30 00:10:17,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:10:17,837 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-30 00:10:26,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:26,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 38 states and 68 transitions. [2020-11-30 00:10:26,791 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 68 transitions. [2020-11-30 00:10:26,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-30 00:10:26,794 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:26,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:26,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-30 00:10:26,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:10:27,016 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-30 00:10:27,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:27,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 44 states and 83 transitions. [2020-11-30 00:10:27,705 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 83 transitions. [2020-11-30 00:10:27,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-30 00:10:27,707 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:27,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:27,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 00:10:27,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:10:27,980 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-30 00:10:33,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:33,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 54 states and 128 transitions. [2020-11-30 00:10:33,420 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 128 transitions. [2020-11-30 00:10:33,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-30 00:10:33,422 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:33,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:33,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 17 conjunts are in the unsatisfiable core [2020-11-30 00:10:33,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:10:33,560 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-30 00:10:34,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:34,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 56 states and 129 transitions. [2020-11-30 00:10:34,180 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 129 transitions. [2020-11-30 00:10:34,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-30 00:10:34,182 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:34,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:34,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:10:34,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:10:34,496 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-11-30 00:10:35,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:35,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 56 states and 128 transitions. [2020-11-30 00:10:35,108 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 128 transitions. [2020-11-30 00:10:35,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-30 00:10:35,110 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:35,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:35,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 16 conjunts are in the unsatisfiable core [2020-11-30 00:10:35,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:11:41,497 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-11-30 00:11:43,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:11:43,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 61 states and 146 transitions. [2020-11-30 00:11:43,282 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 146 transitions. [2020-11-30 00:11:43,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-30 00:11:43,284 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:11:43,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:11:43,350 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:11:43,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:11:43,374 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:11:43,419 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 11 iterations. [2020-11-30 00:11:43,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 30.11 12:11:43 ImpRootNode [2020-11-30 00:11:43,461 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-30 00:11:43,461 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:11:43,462 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:11:43,462 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:11:43,463 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:10:15" (3/4) ... [2020-11-30 00:11:43,465 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 00:11:43,548 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b4748773-5a76-4acd-91f0-082d83366a77/bin/ukojak/witness.graphml [2020-11-30 00:11:43,549 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:11:43,551 INFO L168 Benchmark]: Toolchain (without parser) took 89562.29 ms. Allocated memory was 104.9 MB in the beginning and 151.0 MB in the end (delta: 46.1 MB). Free memory was 76.0 MB in the beginning and 62.4 MB in the end (delta: 13.6 MB). Peak memory consumption was 58.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:11:43,552 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 81.8 MB. Free memory is still 39.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:11:43,553 INFO L168 Benchmark]: CACSL2BoogieTranslator took 443.30 ms. Allocated memory is still 104.9 MB. Free memory was 75.7 MB in the beginning and 82.2 MB in the end (delta: -6.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:11:43,554 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.84 ms. Allocated memory is still 104.9 MB. Free memory was 82.2 MB in the beginning and 80.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:11:43,556 INFO L168 Benchmark]: Boogie Preprocessor took 58.65 ms. Allocated memory is still 104.9 MB. Free memory was 80.8 MB in the beginning and 79.9 MB in the end (delta: 885.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:11:43,557 INFO L168 Benchmark]: RCFGBuilder took 588.60 ms. Allocated memory is still 104.9 MB. Free memory was 79.3 MB in the beginning and 60.4 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-30 00:11:43,558 INFO L168 Benchmark]: CodeCheck took 88308.52 ms. Allocated memory was 104.9 MB in the beginning and 151.0 MB in the end (delta: 46.1 MB). Free memory was 60.4 MB in the beginning and 65.6 MB in the end (delta: -5.2 MB). Peak memory consumption was 42.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:11:43,559 INFO L168 Benchmark]: Witness Printer took 87.40 ms. Allocated memory is still 151.0 MB. Free memory was 65.6 MB in the beginning and 62.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:11:43,566 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 88.2s, OverallIterations: 11, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 18192 SDtfs, 2540 SDslu, 4588 SDs, 0 SdLazy, 20284 SolverSat, 6616 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 64.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1899 GetRequests, 1738 SyntacticMatches, 34 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6728 ImplicationChecksByTransitivity, 74.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 67.9s InterpolantComputationTime, 218 NumberOfCodeBlocks, 218 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 176 ConstructedInterpolants, 0 QuantifiedInterpolants, 12508 SizeOfPredicates, 21 NumberOfNonLiveVariables, 570 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 106/118 InterpolantCoveringCapability, 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: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 8]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L22] int counter = 0; [L24] unsigned int A, B; [L25] unsigned int r, d, p, q; [L26] A = __VERIFIER_nondet_uint() [L27] B = __VERIFIER_nondet_uint() [L12] COND FALSE !(!cond) [L30] r = A [L31] d = B [L32] p = 1 [L33] q = 0 VAL [counter=0] [L35] EXPR counter++ VAL [counter=1] [L35] COND TRUE counter++<1 [L36] CALL __VERIFIER_assert(q == 0) VAL [counter=1] [L15] COND FALSE !(!(cond)) VAL [counter=1] [L36] RET __VERIFIER_assert(q == 0) VAL [counter=1] [L37] CALL __VERIFIER_assert(r == A) VAL [counter=1] [L15] COND FALSE !(!(cond)) VAL [counter=1] [L37] RET __VERIFIER_assert(r == A) VAL [counter=1] [L38] CALL __VERIFIER_assert(d == B * p) VAL [counter=1] [L15] COND FALSE !(!(cond)) VAL [counter=1] [L38] RET __VERIFIER_assert(d == B * p) VAL [counter=1] [L39] COND FALSE !(!(r >= d)) [L41] d = 2 * d [L42] p = 2 * p VAL [counter=1] [L35] EXPR counter++ VAL [counter=2] [L35] COND FALSE !(counter++<1) [L45] EXPR counter++ VAL [counter=3] [L45] COND FALSE !(counter++<1) [L59] CALL __VERIFIER_assert(A == d*q + r) VAL [counter=3] [L15] COND FALSE !(!(cond)) VAL [counter=3] [L59] RET __VERIFIER_assert(A == d*q + r) VAL [counter=3] [L60] CALL __VERIFIER_assert(B == d) VAL [counter=3] [L15] COND TRUE !(cond) VAL [counter=3] [L8] __assert_fail("0", "hard-u.c", 8, "reach_error") VAL [counter=3] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 81.8 MB. Free memory is still 39.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 443.30 ms. Allocated memory is still 104.9 MB. Free memory was 75.7 MB in the beginning and 82.2 MB in the end (delta: -6.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 67.84 ms. Allocated memory is still 104.9 MB. Free memory was 82.2 MB in the beginning and 80.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.65 ms. Allocated memory is still 104.9 MB. Free memory was 80.8 MB in the beginning and 79.9 MB in the end (delta: 885.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 588.60 ms. Allocated memory is still 104.9 MB. Free memory was 79.3 MB in the beginning and 60.4 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * CodeCheck took 88308.52 ms. Allocated memory was 104.9 MB in the beginning and 151.0 MB in the end (delta: 46.1 MB). Free memory was 60.4 MB in the beginning and 65.6 MB in the end (delta: -5.2 MB). Peak memory consumption was 42.6 MB. Max. memory is 16.1 GB. * Witness Printer took 87.40 ms. Allocated memory is still 151.0 MB. Free memory was 65.6 MB in the beginning and 62.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...