./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ef454316-0f16-4267-b977-1deae8c93cb7/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ef454316-0f16-4267-b977-1deae8c93cb7/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ef454316-0f16-4267-b977-1deae8c93cb7/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ef454316-0f16-4267-b977-1deae8c93cb7/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ef454316-0f16-4267-b977-1deae8c93cb7/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ef454316-0f16-4267-b977-1deae8c93cb7/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 e8dca45da3558d3dd2c7a13c991bbb3b579db8dd ...................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-69874e2 [2020-12-01 16:27:12,133 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:27:12,136 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:27:12,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:27:12,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:27:12,218 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:27:12,222 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:27:12,227 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:27:12,230 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:27:12,236 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:27:12,238 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:27:12,249 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:27:12,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:27:12,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:27:12,255 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:27:12,257 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:27:12,263 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:27:12,267 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:27:12,271 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:27:12,279 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:27:12,281 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:27:12,283 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:27:12,285 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:27:12,286 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:27:12,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:27:12,296 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:27:12,297 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:27:12,299 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:27:12,300 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:27:12,301 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:27:12,302 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:27:12,303 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:27:12,306 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:27:12,308 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:27:12,309 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:27:12,310 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:27:12,311 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:27:12,311 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:27:12,312 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:27:12,313 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:27:12,314 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:27:12,317 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ef454316-0f16-4267-b977-1deae8c93cb7/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 16:27:12,362 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:27:12,363 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:27:12,364 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:27:12,364 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:27:12,365 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:27:12,366 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:27:12,366 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:27:12,367 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:27:12,367 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:27:12,367 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:27:12,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:27:12,368 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:27:12,368 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:27:12,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:27:12,369 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:27:12,369 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:27:12,370 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:27:12,370 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:27:12,370 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:27:12,371 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:27:12,371 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:27:12,371 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:27:12,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:27:12,372 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:27:12,372 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:27:12,373 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:27:12,373 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:27:12,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:27:12,374 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:27:12,374 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_ef454316-0f16-4267-b977-1deae8c93cb7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ef454316-0f16-4267-b977-1deae8c93cb7/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e8dca45da3558d3dd2c7a13c991bbb3b579db8dd [2020-12-01 16:27:12,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:27:12,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:27:12,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:27:12,744 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:27:12,750 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:27:12,751 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ef454316-0f16-4267-b977-1deae8c93cb7/bin/ukojak/../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound1.c [2020-12-01 16:27:12,844 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ef454316-0f16-4267-b977-1deae8c93cb7/bin/ukojak/data/c6468958d/241e159d90e84cf484304da01153bf3f/FLAG7cf4503da [2020-12-01 16:27:13,517 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:27:13,523 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ef454316-0f16-4267-b977-1deae8c93cb7/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound1.c [2020-12-01 16:27:13,536 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ef454316-0f16-4267-b977-1deae8c93cb7/bin/ukojak/data/c6468958d/241e159d90e84cf484304da01153bf3f/FLAG7cf4503da [2020-12-01 16:27:13,810 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ef454316-0f16-4267-b977-1deae8c93cb7/bin/ukojak/data/c6468958d/241e159d90e84cf484304da01153bf3f [2020-12-01 16:27:13,818 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:27:13,822 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:27:13,829 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:27:13,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:27:13,835 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:27:13,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:27:13" (1/1) ... [2020-12-01 16:27:13,840 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b386997 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:27:13, skipping insertion in model container [2020-12-01 16:27:13,841 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:27:13" (1/1) ... [2020-12-01 16:27:13,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:27:13,877 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:27:14,101 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:27:14,110 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:27:14,132 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:27:14,146 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:27:14,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:27:14 WrapperNode [2020-12-01 16:27:14,150 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:27:14,152 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:27:14,152 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:27:14,152 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:27:14,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:27:14" (1/1) ... [2020-12-01 16:27:14,185 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:27:14" (1/1) ... [2020-12-01 16:27:14,223 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:27:14,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:27:14,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:27:14,228 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:27:14,239 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:27:14" (1/1) ... [2020-12-01 16:27:14,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:27:14" (1/1) ... [2020-12-01 16:27:14,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:27:14" (1/1) ... [2020-12-01 16:27:14,246 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:27:14" (1/1) ... [2020-12-01 16:27:14,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:27:14" (1/1) ... [2020-12-01 16:27:14,267 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:27:14" (1/1) ... [2020-12-01 16:27:14,269 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:27:14" (1/1) ... [2020-12-01 16:27:14,271 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:27:14,272 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:27:14,272 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:27:14,272 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:27:14,274 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:27:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ef454316-0f16-4267-b977-1deae8c93cb7/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 [2020-12-01 16:27:14,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 16:27:14,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:27:14,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:27:14,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:27:14,363 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-12-01 16:27:14,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-12-01 16:27:14,680 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:27:14,680 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-01 16:27:14,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:27:14 BoogieIcfgContainer [2020-12-01 16:27:14,683 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:27:14,684 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:27:14,685 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:27:14,700 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:27:14,701 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:27:14" (1/1) ... [2020-12-01 16:27:14,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:27:14,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:14,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 23 states and 36 transitions. [2020-12-01 16:27:14,793 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 36 transitions. [2020-12-01 16:27:14,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 16:27:14,798 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:14,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:27:14,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:27:14,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:15,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 23 states and 34 transitions. [2020-12-01 16:27:15,003 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 34 transitions. [2020-12-01 16:27:15,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 16:27:15,006 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:15,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:27:15,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:27:15,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:15,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 25 states and 37 transitions. [2020-12-01 16:27:15,252 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 37 transitions. [2020-12-01 16:27:15,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 16:27:15,253 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:15,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:27:15,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:27:15,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:15,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 30 states and 53 transitions. [2020-12-01 16:27:15,972 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 53 transitions. [2020-12-01 16:27:15,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 16:27:15,988 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:16,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:27:16,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-01 16:27:16,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:27:16,291 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:27:17,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:17,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 34 states and 61 transitions. [2020-12-01 16:27:17,294 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 61 transitions. [2020-12-01 16:27:17,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 16:27:17,295 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:17,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:27:17,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-01 16:27:17,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:27:17,539 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 16:27:18,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:18,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 39 states and 71 transitions. [2020-12-01 16:27:18,770 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 71 transitions. [2020-12-01 16:27:18,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-01 16:27:18,772 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:18,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:27:18,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-01 16:27:18,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:27:18,977 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-01 16:27:19,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:19,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 40 states and 73 transitions. [2020-12-01 16:27:19,352 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 73 transitions. [2020-12-01 16:27:19,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-01 16:27:19,353 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:19,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:27:19,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-01 16:27:19,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:27:19,490 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-01 16:27:19,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:19,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 41 states and 75 transitions. [2020-12-01 16:27:19,591 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 75 transitions. [2020-12-01 16:27:19,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-01 16:27:19,593 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:19,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:27:19,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-01 16:27:19,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:27:19,749 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-12-01 16:27:30,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:30,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 43 states and 81 transitions. [2020-12-01 16:27:30,223 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 81 transitions. [2020-12-01 16:27:30,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-01 16:27:30,225 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:30,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:27:30,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-01 16:27:30,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:27:30,408 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-12-01 16:27:31,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:31,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 46 states and 87 transitions. [2020-12-01 16:27:31,171 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 87 transitions. [2020-12-01 16:27:31,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-01 16:27:31,173 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:31,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:27:31,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-01 16:27:31,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:27:31,454 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-12-01 16:27:31,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:31,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 48 states and 92 transitions. [2020-12-01 16:27:31,860 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 92 transitions. [2020-12-01 16:27:31,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-12-01 16:27:31,867 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:31,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:27:31,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 16:27:31,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:27:32,265 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 33 proven. 1 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-12-01 16:27:34,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:34,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 58 states and 142 transitions. [2020-12-01 16:27:34,167 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 142 transitions. [2020-12-01 16:27:34,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-12-01 16:27:34,169 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:34,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:27:34,217 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:27:34,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:27:34,242 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:27:34,737 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 12 iterations. [2020-12-01 16:27:34,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:27:34 ImpRootNode [2020-12-01 16:27:34,833 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:27:34,834 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:27:34,835 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:27:34,835 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:27:34,837 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:27:14" (3/4) ... [2020-12-01 16:27:34,839 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 16:27:34,954 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ef454316-0f16-4267-b977-1deae8c93cb7/bin/ukojak/witness.graphml [2020-12-01 16:27:34,955 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:27:34,957 INFO L168 Benchmark]: Toolchain (without parser) took 21133.72 ms. Allocated memory was 136.3 MB in the beginning and 197.1 MB in the end (delta: 60.8 MB). Free memory was 111.5 MB in the beginning and 111.4 MB in the end (delta: 35.0 kB). Peak memory consumption was 61.6 MB. Max. memory is 16.1 GB. [2020-12-01 16:27:34,961 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 96.5 MB. Free memory is still 56.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:27:34,962 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.88 ms. Allocated memory is still 136.3 MB. Free memory was 111.1 MB in the beginning and 113.1 MB in the end (delta: -2.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 16:27:34,963 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.01 ms. Allocated memory is still 136.3 MB. Free memory was 113.1 MB in the beginning and 111.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:27:34,963 INFO L168 Benchmark]: Boogie Preprocessor took 43.37 ms. Allocated memory is still 136.3 MB. Free memory was 111.9 MB in the beginning and 110.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:27:34,964 INFO L168 Benchmark]: RCFGBuilder took 411.61 ms. Allocated memory is still 136.3 MB. Free memory was 110.3 MB in the beginning and 95.2 MB in the end (delta: 15.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-01 16:27:34,970 INFO L168 Benchmark]: CodeCheck took 20148.69 ms. Allocated memory was 136.3 MB in the beginning and 197.1 MB in the end (delta: 60.8 MB). Free memory was 95.2 MB in the beginning and 114.6 MB in the end (delta: -19.4 MB). Peak memory consumption was 42.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:27:34,971 INFO L168 Benchmark]: Witness Printer took 121.41 ms. Allocated memory is still 197.1 MB. Free memory was 114.6 MB in the beginning and 111.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 16:27:34,974 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, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 20.0s, OverallIterations: 12, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 24576 SDtfs, 820 SDslu, 2568 SDs, 0 SdLazy, 50720 SolverSat, 15756 SolverUnsat, 16 SolverUnknown, 0 SolverNotchecked, 44.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2345 GetRequests, 2180 SyntacticMatches, 47 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5812 ImplicationChecksByTransitivity, 6.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 284 NumberOfCodeBlocks, 284 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 233 ConstructedInterpolants, 0 QuantifiedInterpolants, 21678 SizeOfPredicates, 18 NumberOfNonLiveVariables, 774 ConjunctsInSsa, 120 ConjunctsInUnsatCore, 11 InterpolantComputations, 4 PerfectInterpolantSequences, 284/310 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] short a; [L25] long long n, x, y, z; [L26] a = __VERIFIER_nondet_ushort() [L28] n = 0 [L29] x = 0 [L30] y = 1 [L31] z = 6 VAL [counter=0] [L33] EXPR counter++ VAL [counter=1] [L33] COND TRUE counter++<1 [L34] CALL __VERIFIER_assert(z == 6 * n + 6) VAL [counter=1] [L15] COND FALSE !(!(cond)) VAL [counter=1] [L34] RET __VERIFIER_assert(z == 6 * n + 6) VAL [counter=1] [L35] CALL __VERIFIER_assert(y == 3 * n * n + 3 * n + 1) VAL [counter=1] [L15] COND FALSE !(!(cond)) VAL [counter=1] [L35] RET __VERIFIER_assert(y == 3 * n * n + 3 * n + 1) VAL [counter=1] [L36] CALL __VERIFIER_assert(x == n * n * n) VAL [counter=1] [L15] COND FALSE !(!(cond)) VAL [counter=1] [L36] RET __VERIFIER_assert(x == n * n * n) VAL [counter=1] [L37] CALL __VERIFIER_assert(y*z - 18*x - 12*y + 2*z - 6 == 0) VAL [counter=1] [L15] COND FALSE !(!(cond)) VAL [counter=1] [L37] RET __VERIFIER_assert(y*z - 18*x - 12*y + 2*z - 6 == 0) VAL [counter=1] [L38] CALL __VERIFIER_assert((z*z) - 12*y - 6*z + 12 == 0) VAL [counter=1] [L15] COND FALSE !(!(cond)) VAL [counter=1] [L38] RET __VERIFIER_assert((z*z) - 12*y - 6*z + 12 == 0) VAL [counter=1] [L39] COND FALSE !(!(n <= a)) [L42] n = n + 1 [L43] x = x + y [L44] y = y + z [L45] z = z + 6 VAL [counter=1] [L33] EXPR counter++ VAL [counter=2] [L33] COND FALSE !(counter++<1) [L48] CALL __VERIFIER_assert(z == 6*n + 6) VAL [counter=2] [L15] COND FALSE !(!(cond)) VAL [counter=2] [L48] RET __VERIFIER_assert(z == 6*n + 6) VAL [counter=2] [L49] CALL __VERIFIER_assert(6*a*x - x*z + 12*x == 0) VAL [counter=2] [L15] COND TRUE !(cond) VAL [counter=2] [L8] __assert_fail("0", "cohencu-ll.c", 8, "reach_error") VAL [counter=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 96.5 MB. Free memory is still 56.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 321.88 ms. Allocated memory is still 136.3 MB. Free memory was 111.1 MB in the beginning and 113.1 MB in the end (delta: -2.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 75.01 ms. Allocated memory is still 136.3 MB. Free memory was 113.1 MB in the beginning and 111.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.37 ms. Allocated memory is still 136.3 MB. Free memory was 111.9 MB in the beginning and 110.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 411.61 ms. Allocated memory is still 136.3 MB. Free memory was 110.3 MB in the beginning and 95.2 MB in the end (delta: 15.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * CodeCheck took 20148.69 ms. Allocated memory was 136.3 MB in the beginning and 197.1 MB in the end (delta: 60.8 MB). Free memory was 95.2 MB in the beginning and 114.6 MB in the end (delta: -19.4 MB). Peak memory consumption was 42.4 MB. Max. memory is 16.1 GB. * Witness Printer took 121.41 ms. Allocated memory is still 197.1 MB. Free memory was 114.6 MB in the beginning and 111.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...