./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fdf96c4-742e-417a-ab6a-462dfd7ea90b/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fdf96c4-742e-417a-ab6a-462dfd7ea90b/bin/ukojak-Rh5K9KB4LI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fdf96c4-742e-417a-ab6a-462dfd7ea90b/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fdf96c4-742e-417a-ab6a-462dfd7ea90b/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fdf96c4-742e-417a-ab6a-462dfd7ea90b/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fdf96c4-742e-417a-ab6a-462dfd7ea90b/bin/ukojak-Rh5K9KB4LI --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 7bf1fedabded59b54ffeedfdca15b4d2afc329082dbabcf446dea84149cd8668 ............................................................................................................................................................................................................................................................................................................................... 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 0.2.1-dev-b2eff8b [2021-10-29 02:53:54,177 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 02:53:54,180 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 02:53:54,235 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 02:53:54,236 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 02:53:54,240 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 02:53:54,242 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 02:53:54,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 02:53:54,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 02:53:54,255 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 02:53:54,256 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 02:53:54,258 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 02:53:54,259 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 02:53:54,261 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 02:53:54,264 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 02:53:54,268 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 02:53:54,270 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 02:53:54,271 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 02:53:54,274 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 02:53:54,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 02:53:54,284 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 02:53:54,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 02:53:54,290 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 02:53:54,291 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 02:53:54,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 02:53:54,301 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 02:53:54,301 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 02:53:54,303 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 02:53:54,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 02:53:54,306 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 02:53:54,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 02:53:54,307 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 02:53:54,309 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 02:53:54,311 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 02:53:54,312 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 02:53:54,313 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 02:53:54,314 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 02:53:54,314 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 02:53:54,315 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 02:53:54,316 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 02:53:54,317 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 02:53:54,318 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fdf96c4-742e-417a-ab6a-462dfd7ea90b/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-29 02:53:54,356 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 02:53:54,356 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 02:53:54,357 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 02:53:54,358 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 02:53:54,358 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 02:53:54,359 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 02:53:54,359 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 02:53:54,359 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 02:53:54,360 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 02:53:54,360 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 02:53:54,360 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 02:53:54,360 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 02:53:54,361 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 02:53:54,361 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 02:53:54,361 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 02:53:54,361 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 02:53:54,362 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 02:53:54,362 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 02:53:54,362 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 02:53:54,362 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 02:53:54,363 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 02:53:54,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 02:53:54,363 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 02:53:54,364 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 02:53:54,364 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 02:53:54,364 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 02:53:54,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 02:53:54,365 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 02:53:54,365 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_worker_vcloud-master_on_vcloud-master/run_dir_2fdf96c4-742e-417a-ab6a-462dfd7ea90b/bin/ukojak-Rh5K9KB4LI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fdf96c4-742e-417a-ab6a-462dfd7ea90b/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7bf1fedabded59b54ffeedfdca15b4d2afc329082dbabcf446dea84149cd8668 [2021-10-29 02:53:54,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 02:53:54,665 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 02:53:54,667 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 02:53:54,669 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 02:53:54,670 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 02:53:54,671 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fdf96c4-742e-417a-ab6a-462dfd7ea90b/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound1.c [2021-10-29 02:53:54,758 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fdf96c4-742e-417a-ab6a-462dfd7ea90b/bin/ukojak-Rh5K9KB4LI/data/1d5a1f1b5/e1de6e6e06854ad280ffafc06d926573/FLAGb247c33b6 [2021-10-29 02:53:55,258 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 02:53:55,258 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fdf96c4-742e-417a-ab6a-462dfd7ea90b/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound1.c [2021-10-29 02:53:55,268 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fdf96c4-742e-417a-ab6a-462dfd7ea90b/bin/ukojak-Rh5K9KB4LI/data/1d5a1f1b5/e1de6e6e06854ad280ffafc06d926573/FLAGb247c33b6 [2021-10-29 02:53:55,640 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fdf96c4-742e-417a-ab6a-462dfd7ea90b/bin/ukojak-Rh5K9KB4LI/data/1d5a1f1b5/e1de6e6e06854ad280ffafc06d926573 [2021-10-29 02:53:55,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 02:53:55,644 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 02:53:55,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 02:53:55,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 02:53:55,650 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 02:53:55,651 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 02:53:55" (1/1) ... [2021-10-29 02:53:55,652 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cd9aa41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:53:55, skipping insertion in model container [2021-10-29 02:53:55,652 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 02:53:55" (1/1) ... [2021-10-29 02:53:55,659 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 02:53:55,674 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 02:53:55,857 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fdf96c4-742e-417a-ab6a-462dfd7ea90b/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound1.c[458,471] [2021-10-29 02:53:55,875 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 02:53:55,890 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 02:53:55,912 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fdf96c4-742e-417a-ab6a-462dfd7ea90b/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound1.c[458,471] [2021-10-29 02:53:55,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 02:53:55,941 INFO L208 MainTranslator]: Completed translation [2021-10-29 02:53:55,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:53:55 WrapperNode [2021-10-29 02:53:55,942 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 02:53:55,943 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 02:53:55,944 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 02:53:55,944 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 02:53:55,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:53:55" (1/1) ... [2021-10-29 02:53:55,959 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:53:55" (1/1) ... [2021-10-29 02:53:55,977 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 02:53:55,978 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 02:53:55,978 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 02:53:55,978 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 02:53:55,987 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:53:55" (1/1) ... [2021-10-29 02:53:55,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:53:55" (1/1) ... [2021-10-29 02:53:55,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:53:55" (1/1) ... [2021-10-29 02:53:55,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:53:55" (1/1) ... [2021-10-29 02:53:55,992 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:53:55" (1/1) ... [2021-10-29 02:53:55,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:53:55" (1/1) ... [2021-10-29 02:53:55,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:53:55" (1/1) ... [2021-10-29 02:53:55,999 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 02:53:56,000 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 02:53:56,000 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 02:53:56,000 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 02:53:56,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:53:55" (1/1) ... [2021-10-29 02:53:56,008 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 02:53:56,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fdf96c4-742e-417a-ab6a-462dfd7ea90b/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 02:53:56,053 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fdf96c4-742e-417a-ab6a-462dfd7ea90b/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 02:53:56,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fdf96c4-742e-417a-ab6a-462dfd7ea90b/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 02:53:56,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 02:53:56,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 02:53:56,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 02:53:56,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 02:53:56,105 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-10-29 02:53:56,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-10-29 02:53:56,466 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 02:53:56,466 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-29 02:53:56,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 02:53:56 BoogieIcfgContainer [2021-10-29 02:53:56,468 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 02:53:56,469 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 02:53:56,469 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 02:53:56,482 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 02:53:56,482 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 02:53:56" (1/1) ... [2021-10-29 02:53:56,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 02:53:56,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:53:56,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2021-10-29 02:53:56,523 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2021-10-29 02:53:56,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 02:53:56,524 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:53:56,525 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:53:56,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:53:56,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:53:56,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:53:56,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2021-10-29 02:53:56,665 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2021-10-29 02:53:56,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 02:53:56,666 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:53:56,666 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:53:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:53:56,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:53:56,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:53:56,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2021-10-29 02:53:56,782 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2021-10-29 02:53:56,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 02:53:56,783 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:53:56,784 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:53:56,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:53:56,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 02:53:56,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:53:57,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:53:57,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:53:57,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2021-10-29 02:53:57,347 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2021-10-29 02:53:57,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 02:53:57,352 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:53:57,352 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:53:57,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:53:57,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 02:53:57,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:53:57,715 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:53:58,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:53:58,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 26 states and 41 transitions. [2021-10-29 02:53:58,021 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 41 transitions. [2021-10-29 02:53:58,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 02:53:58,022 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:53:58,022 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:53:58,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:53:58,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 02:53:58,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:53:58,206 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:53:59,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:53:59,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 32 states and 56 transitions. [2021-10-29 02:53:59,177 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 56 transitions. [2021-10-29 02:53:59,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 02:53:59,179 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:53:59,179 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:53:59,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:53:59,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 02:53:59,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:53:59,350 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:53:59,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:53:59,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 35 states and 62 transitions. [2021-10-29 02:53:59,953 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 62 transitions. [2021-10-29 02:53:59,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 02:53:59,954 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:53:59,955 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:53:59,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:53:59,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 02:53:59,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:54:00,057 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:54:00,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:54:00,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 25 states and 33 transitions. [2021-10-29 02:54:00,434 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2021-10-29 02:54:00,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 02:54:00,435 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:54:00,436 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:54:00,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:54:00,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 02:54:00,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:54:00,561 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-29 02:54:00,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:54:00,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 27 states and 41 transitions. [2021-10-29 02:54:00,760 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 41 transitions. [2021-10-29 02:54:00,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-29 02:54:00,761 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:54:00,761 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:54:00,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 02:54:00,794 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 02:54:00,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 02:54:00,879 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 9 iterations. [2021-10-29 02:54:00,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 02:54:00 ImpRootNode [2021-10-29 02:54:00,913 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 02:54:00,914 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 02:54:00,914 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 02:54:00,914 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 02:54:00,915 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 02:53:56" (3/4) ... [2021-10-29 02:54:00,917 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 02:54:00,979 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fdf96c4-742e-417a-ab6a-462dfd7ea90b/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 02:54:00,979 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 02:54:00,981 INFO L168 Benchmark]: Toolchain (without parser) took 5335.40 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 53.5 MB in the beginning and 77.2 MB in the end (delta: -23.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 02:54:00,982 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 88.1 MB. Free memory was 60.2 MB in the beginning and 60.2 MB in the end (delta: 29.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 02:54:00,983 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.53 ms. Allocated memory is still 88.1 MB. Free memory was 53.5 MB in the beginning and 63.0 MB in the end (delta: -9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 02:54:00,984 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.03 ms. Allocated memory is still 88.1 MB. Free memory was 63.0 MB in the beginning and 61.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 02:54:00,985 INFO L168 Benchmark]: Boogie Preprocessor took 20.99 ms. Allocated memory is still 88.1 MB. Free memory was 61.5 MB in the beginning and 60.6 MB in the end (delta: 885.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 02:54:00,986 INFO L168 Benchmark]: RCFGBuilder took 468.77 ms. Allocated memory is still 88.1 MB. Free memory was 60.6 MB in the beginning and 48.9 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 02:54:00,987 INFO L168 Benchmark]: CodeCheck took 4444.11 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 48.9 MB in the beginning and 80.4 MB in the end (delta: -31.5 MB). Peak memory consumption was 39.1 MB. Max. memory is 16.1 GB. [2021-10-29 02:54:00,988 INFO L168 Benchmark]: Witness Printer took 65.35 ms. Allocated memory is still 107.0 MB. Free memory was 80.4 MB in the beginning and 77.2 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 02:54:00,996 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, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2048 SDtfs, 260 SDslu, 504 SDs, 0 SdLazy, 4678 SolverSat, 1734 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 913 GetRequests, 804 SyntacticMatches, 23 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2611 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 294 SizeOfPredicates, 7 NumberOfNonLiveVariables, 452 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 19/24 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: 12]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L17] int counter = 0; [L19] short k; [L20] long long y, x, c; [L21] k = __VERIFIER_nondet_short() [L7] COND FALSE !(!cond) [L24] y = 0 [L25] x = 0 [L26] c = 0 VAL [counter=0] [L28] EXPR counter++ VAL [counter=1] [L28] COND TRUE counter++<1 [L29] CALL __VERIFIER_assert(6*y*y*y*y*y + 15*y*y*y*y + 10*y*y*y - 30*x - y == 0) VAL [\old(cond)=1, counter=1] [L10] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L29] RET __VERIFIER_assert(6*y*y*y*y*y + 15*y*y*y*y + 10*y*y*y - 30*x - y == 0) VAL [counter=1] [L31] COND FALSE !(!(c < k)) [L34] c = c + 1 [L35] y = y + 1 [L36] x = y * y * y * y + x VAL [counter=1] [L28] EXPR counter++ VAL [counter=2] [L28] COND FALSE !(counter++<1) [L39] CALL __VERIFIER_assert(6*y*y*y*y*y + 15*y*y*y*y + 10*y*y*y - 30*x - y == 0) VAL [\old(cond)=1, counter=2] [L10] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=2] [L39] RET __VERIFIER_assert(6*y*y*y*y*y + 15*y*y*y*y + 10*y*y*y - 30*x - y == 0) VAL [counter=2] [L40] CALL __VERIFIER_assert(k*y == y*y) VAL [\old(cond)=0, counter=2] [L10] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, counter=2] [L12] reach_error() VAL [\old(cond)=0, cond=0, counter=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 88.1 MB. Free memory was 60.2 MB in the beginning and 60.2 MB in the end (delta: 29.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 296.53 ms. Allocated memory is still 88.1 MB. Free memory was 53.5 MB in the beginning and 63.0 MB in the end (delta: -9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.03 ms. Allocated memory is still 88.1 MB. Free memory was 63.0 MB in the beginning and 61.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.99 ms. Allocated memory is still 88.1 MB. Free memory was 61.5 MB in the beginning and 60.6 MB in the end (delta: 885.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 468.77 ms. Allocated memory is still 88.1 MB. Free memory was 60.6 MB in the beginning and 48.9 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 4444.11 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 48.9 MB in the beginning and 80.4 MB in the end (delta: -31.5 MB). Peak memory consumption was 39.1 MB. Max. memory is 16.1 GB. * Witness Printer took 65.35 ms. Allocated memory is still 107.0 MB. Free memory was 80.4 MB in the beginning and 77.2 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! [2021-10-29 02:54:01,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fdf96c4-742e-417a-ab6a-462dfd7ea90b/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...