./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd-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_888a967e-00fb-433d-a8af-13da34ee1a07/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888a967e-00fb-433d-a8af-13da34ee1a07/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_888a967e-00fb-433d-a8af-13da34ee1a07/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888a967e-00fb-433d-a8af-13da34ee1a07/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888a967e-00fb-433d-a8af-13da34ee1a07/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_888a967e-00fb-433d-a8af-13da34ee1a07/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 0af3ae3e1b18402d7b766cf1943edddd3bf558b5da3e0e85ca5f8b1f74f72a1e ................................................................................................................................................................................................................................................................................................................................. 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 03:51:24,088 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 03:51:24,091 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 03:51:24,148 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 03:51:24,149 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 03:51:24,153 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 03:51:24,156 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 03:51:24,160 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 03:51:24,163 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 03:51:24,168 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 03:51:24,170 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 03:51:24,172 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 03:51:24,172 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 03:51:24,175 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 03:51:24,177 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 03:51:24,178 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 03:51:24,179 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 03:51:24,180 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 03:51:24,182 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 03:51:24,185 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 03:51:24,187 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 03:51:24,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 03:51:24,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 03:51:24,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 03:51:24,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 03:51:24,204 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 03:51:24,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 03:51:24,207 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 03:51:24,208 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 03:51:24,209 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 03:51:24,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 03:51:24,211 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 03:51:24,213 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 03:51:24,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 03:51:24,216 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 03:51:24,217 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 03:51:24,217 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 03:51:24,218 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 03:51:24,218 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 03:51:24,219 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 03:51:24,220 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 03:51:24,221 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888a967e-00fb-433d-a8af-13da34ee1a07/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-29 03:51:24,263 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 03:51:24,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 03:51:24,265 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 03:51:24,265 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 03:51:24,266 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 03:51:24,266 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 03:51:24,267 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 03:51:24,267 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 03:51:24,267 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 03:51:24,267 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 03:51:24,268 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 03:51:24,269 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 03:51:24,269 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 03:51:24,269 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 03:51:24,269 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 03:51:24,270 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 03:51:24,270 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 03:51:24,270 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 03:51:24,270 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 03:51:24,271 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 03:51:24,271 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 03:51:24,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:51:24,271 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 03:51:24,272 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 03:51:24,272 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 03:51:24,272 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 03:51:24,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 03:51:24,273 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 03:51:24,273 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_888a967e-00fb-433d-a8af-13da34ee1a07/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888a967e-00fb-433d-a8af-13da34ee1a07/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0af3ae3e1b18402d7b766cf1943edddd3bf558b5da3e0e85ca5f8b1f74f72a1e [2021-10-29 03:51:24,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 03:51:24,639 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 03:51:24,642 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 03:51:24,644 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 03:51:24,645 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 03:51:24,646 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888a967e-00fb-433d-a8af-13da34ee1a07/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound1.c [2021-10-29 03:51:24,720 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888a967e-00fb-433d-a8af-13da34ee1a07/bin/ukojak-Rh5K9KB4LI/data/4941b6d9f/5c385c3da1374469883bd0ae3f3864b8/FLAGa65b0f7df [2021-10-29 03:51:25,222 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 03:51:25,225 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888a967e-00fb-433d-a8af-13da34ee1a07/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound1.c [2021-10-29 03:51:25,238 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888a967e-00fb-433d-a8af-13da34ee1a07/bin/ukojak-Rh5K9KB4LI/data/4941b6d9f/5c385c3da1374469883bd0ae3f3864b8/FLAGa65b0f7df [2021-10-29 03:51:25,574 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888a967e-00fb-433d-a8af-13da34ee1a07/bin/ukojak-Rh5K9KB4LI/data/4941b6d9f/5c385c3da1374469883bd0ae3f3864b8 [2021-10-29 03:51:25,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 03:51:25,581 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 03:51:25,585 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 03:51:25,585 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 03:51:25,588 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 03:51:25,589 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:51:25" (1/1) ... [2021-10-29 03:51:25,591 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@373b279f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:51:25, skipping insertion in model container [2021-10-29 03:51:25,591 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:51:25" (1/1) ... [2021-10-29 03:51:25,598 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 03:51:25,616 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 03:51:25,784 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_888a967e-00fb-433d-a8af-13da34ee1a07/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound1.c[489,502] [2021-10-29 03:51:25,802 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:51:25,811 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 03:51:25,823 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_888a967e-00fb-433d-a8af-13da34ee1a07/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound1.c[489,502] [2021-10-29 03:51:25,832 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:51:25,845 INFO L208 MainTranslator]: Completed translation [2021-10-29 03:51:25,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:51:25 WrapperNode [2021-10-29 03:51:25,846 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 03:51:25,847 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 03:51:25,848 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 03:51:25,848 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 03:51:25,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:51:25" (1/1) ... [2021-10-29 03:51:25,862 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:51:25" (1/1) ... [2021-10-29 03:51:25,881 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 03:51:25,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 03:51:25,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 03:51:25,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 03:51:25,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:51:25" (1/1) ... [2021-10-29 03:51:25,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:51:25" (1/1) ... [2021-10-29 03:51:25,893 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:51:25" (1/1) ... [2021-10-29 03:51:25,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:51:25" (1/1) ... [2021-10-29 03:51:25,897 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:51:25" (1/1) ... [2021-10-29 03:51:25,901 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:51:25" (1/1) ... [2021-10-29 03:51:25,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:51:25" (1/1) ... [2021-10-29 03:51:25,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 03:51:25,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 03:51:25,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 03:51:25,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 03:51:25,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:51:25" (1/1) ... [2021-10-29 03:51:25,920 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:51:25,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888a967e-00fb-433d-a8af-13da34ee1a07/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 03:51:25,955 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888a967e-00fb-433d-a8af-13da34ee1a07/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 03:51:25,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888a967e-00fb-433d-a8af-13da34ee1a07/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 03:51:25,991 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-10-29 03:51:25,991 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-10-29 03:51:25,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 03:51:25,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 03:51:25,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 03:51:25,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 03:51:25,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-10-29 03:51:25,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-10-29 03:51:26,262 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 03:51:26,263 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-29 03:51:26,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:51:26 BoogieIcfgContainer [2021-10-29 03:51:26,266 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 03:51:26,267 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 03:51:26,267 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 03:51:26,278 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 03:51:26,278 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:51:26" (1/1) ... [2021-10-29 03:51:26,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 03:51:26,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:51:26,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2021-10-29 03:51:26,325 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2021-10-29 03:51:26,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 03:51:26,330 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:51:26,331 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:51:26,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:51:26,564 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-29 03:51:26,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:51:26,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 32 transitions. [2021-10-29 03:51:26,577 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2021-10-29 03:51:26,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 03:51:26,578 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:51:26,578 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:51:26,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:51:26,683 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-29 03:51:26,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:51:26,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 26 states and 35 transitions. [2021-10-29 03:51:26,728 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2021-10-29 03:51:26,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 03:51:26,729 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:51:26,729 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:51:26,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:51:26,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-29 03:51:26,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:51:27,046 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-29 03:51:27,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:51:27,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 31 states and 50 transitions. [2021-10-29 03:51:27,315 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 50 transitions. [2021-10-29 03:51:27,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-29 03:51:27,317 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:51:27,318 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:51:27,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:51:27,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-29 03:51:27,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:51:27,631 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 03:51:28,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:51:28,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 35 states and 59 transitions. [2021-10-29 03:51:28,403 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 59 transitions. [2021-10-29 03:51:28,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-29 03:51:28,404 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:51:28,405 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:51:28,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:51:28,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-29 03:51:28,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:51:28,695 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-29 03:51:29,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:51:29,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 40 states and 70 transitions. [2021-10-29 03:51:29,614 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 70 transitions. [2021-10-29 03:51:29,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-29 03:51:29,616 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:51:29,617 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:51:29,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:51:29,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 03:51:29,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:51:29,773 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-10-29 03:51:29,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:51:29,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 41 states and 72 transitions. [2021-10-29 03:51:29,845 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 72 transitions. [2021-10-29 03:51:29,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-29 03:51:29,847 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:51:29,847 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:51:29,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:51:29,899 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 03:51:29,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:51:29,974 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 7 iterations. [2021-10-29 03:51:30,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 03:51:30 ImpRootNode [2021-10-29 03:51:30,017 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 03:51:30,018 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 03:51:30,029 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 03:51:30,029 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 03:51:30,029 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:51:26" (3/4) ... [2021-10-29 03:51:30,031 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 03:51:30,140 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888a967e-00fb-433d-a8af-13da34ee1a07/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 03:51:30,140 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 03:51:30,142 INFO L168 Benchmark]: Toolchain (without parser) took 4560.20 ms. Allocated memory was 90.2 MB in the beginning and 138.4 MB in the end (delta: 48.2 MB). Free memory was 50.2 MB in the beginning and 68.5 MB in the end (delta: -18.2 MB). Peak memory consumption was 30.6 MB. Max. memory is 16.1 GB. [2021-10-29 03:51:30,143 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 90.2 MB. Free memory was 66.6 MB in the beginning and 66.5 MB in the end (delta: 46.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:51:30,144 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.93 ms. Allocated memory is still 90.2 MB. Free memory was 50.0 MB in the beginning and 60.8 MB in the end (delta: -10.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 03:51:30,144 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.31 ms. Allocated memory is still 90.2 MB. Free memory was 60.8 MB in the beginning and 59.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:51:30,145 INFO L168 Benchmark]: Boogie Preprocessor took 21.85 ms. Allocated memory is still 90.2 MB. Free memory was 59.2 MB in the beginning and 58.2 MB in the end (delta: 950.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:51:30,146 INFO L168 Benchmark]: RCFGBuilder took 361.16 ms. Allocated memory is still 90.2 MB. Free memory was 58.0 MB in the beginning and 45.6 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 03:51:30,147 INFO L168 Benchmark]: CodeCheck took 3750.39 ms. Allocated memory was 90.2 MB in the beginning and 138.4 MB in the end (delta: 48.2 MB). Free memory was 45.4 MB in the beginning and 71.6 MB in the end (delta: -26.2 MB). Peak memory consumption was 22.7 MB. Max. memory is 16.1 GB. [2021-10-29 03:51:30,147 INFO L168 Benchmark]: Witness Printer took 122.87 ms. Allocated memory is still 138.4 MB. Free memory was 71.6 MB in the beginning and 68.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 03:51:30,151 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 3 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.6s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1236 SDtfs, 76 SDslu, 136 SDs, 0 SdLazy, 1434 SolverSat, 450 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1008 GetRequests, 938 SyntacticMatches, 6 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1124 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 146 NumberOfCodeBlocks, 146 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 283 SizeOfPredicates, 6 NumberOfNonLiveVariables, 372 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 39/40 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: 13]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L18] int counter = 0; [L20] long long a, b, p, q, r, s; [L21] int x, y; [L22] x = __VERIFIER_nondet_int() [L23] y = __VERIFIER_nondet_int() [L24] CALL assume_abort_if_not(x >= 1) VAL [\old(cond)=1, counter=0] [L8] COND FALSE !(!cond) [L24] RET assume_abort_if_not(x >= 1) VAL [counter=0] [L25] CALL assume_abort_if_not(y >= 1) VAL [\old(cond)=1, counter=0] [L8] COND FALSE !(!cond) [L25] RET assume_abort_if_not(y >= 1) VAL [counter=0] [L27] a = x [L28] b = y [L29] p = 1 [L30] q = 0 [L31] r = 0 [L32] s = 1 VAL [counter=0] [L34] EXPR counter++ VAL [counter=1] [L34] COND TRUE counter++<1 [L35] CALL __VERIFIER_assert(1 == p * s - r * q) VAL [\old(cond)=1, counter=1] [L11] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L35] RET __VERIFIER_assert(1 == p * s - r * q) VAL [counter=1] [L36] CALL __VERIFIER_assert(a == y * r + x * p) VAL [\old(cond)=1, counter=1] [L11] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L36] RET __VERIFIER_assert(a == y * r + x * p) VAL [counter=1] [L37] CALL __VERIFIER_assert(b == x * q + y * s) VAL [\old(cond)=1, counter=1] [L11] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L37] RET __VERIFIER_assert(b == x * q + y * s) VAL [counter=1] [L39] COND FALSE !(!(a != b)) [L42] COND FALSE !(a > b) [L47] b = b - a [L48] q = q - p [L49] s = s - r VAL [counter=1] [L34] EXPR counter++ VAL [counter=2] [L34] COND FALSE !(counter++<1) [L53] CALL __VERIFIER_assert(a - b == 0) VAL [\old(cond)=0, counter=2] [L11] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, counter=2] [L13] 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 0.25 ms. Allocated memory is still 90.2 MB. Free memory was 66.6 MB in the beginning and 66.5 MB in the end (delta: 46.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 261.93 ms. Allocated memory is still 90.2 MB. Free memory was 50.0 MB in the beginning and 60.8 MB in the end (delta: -10.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.31 ms. Allocated memory is still 90.2 MB. Free memory was 60.8 MB in the beginning and 59.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.85 ms. Allocated memory is still 90.2 MB. Free memory was 59.2 MB in the beginning and 58.2 MB in the end (delta: 950.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 361.16 ms. Allocated memory is still 90.2 MB. Free memory was 58.0 MB in the beginning and 45.6 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 3750.39 ms. Allocated memory was 90.2 MB in the beginning and 138.4 MB in the end (delta: 48.2 MB). Free memory was 45.4 MB in the beginning and 71.6 MB in the end (delta: -26.2 MB). Peak memory consumption was 22.7 MB. Max. memory is 16.1 GB. * Witness Printer took 122.87 ms. Allocated memory is still 138.4 MB. Free memory was 71.6 MB in the beginning and 68.5 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! [2021-10-29 03:51:30,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_888a967e-00fb-433d-a8af-13da34ee1a07/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...