./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound1.i --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_d168a80a-516a-4954-a84c-0ec9e561c55c/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d168a80a-516a-4954-a84c-0ec9e561c55c/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_d168a80a-516a-4954-a84c-0ec9e561c55c/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d168a80a-516a-4954-a84c-0ec9e561c55c/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d168a80a-516a-4954-a84c-0ec9e561c55c/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_d168a80a-516a-4954-a84c-0ec9e561c55c/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 e5903ff87e76f5c38f2f015436bd4a2c11a1411b3a93f272aa9f876a0a3f4d37 ......................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 03:43:52,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 03:43:52,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 03:43:52,397 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 03:43:52,398 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 03:43:52,405 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 03:43:52,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 03:43:52,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 03:43:52,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 03:43:52,421 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 03:43:52,422 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 03:43:52,424 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 03:43:52,424 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 03:43:52,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 03:43:52,431 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 03:43:52,436 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 03:43:52,438 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 03:43:52,439 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 03:43:52,445 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 03:43:52,455 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 03:43:52,457 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 03:43:52,459 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 03:43:52,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 03:43:52,463 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 03:43:52,472 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 03:43:52,473 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 03:43:52,473 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 03:43:52,475 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 03:43:52,476 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 03:43:52,477 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 03:43:52,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 03:43:52,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 03:43:52,481 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 03:43:52,482 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 03:43:52,483 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 03:43:52,484 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 03:43:52,484 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 03:43:52,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 03:43:52,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 03:43:52,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 03:43:52,486 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 03:43:52,487 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d168a80a-516a-4954-a84c-0ec9e561c55c/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-29 03:43:52,528 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 03:43:52,533 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 03:43:52,534 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 03:43:52,535 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 03:43:52,535 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 03:43:52,536 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 03:43:52,536 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 03:43:52,536 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 03:43:52,543 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 03:43:52,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 03:43:52,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 03:43:52,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 03:43:52,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 03:43:52,546 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 03:43:52,546 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 03:43:52,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 03:43:52,547 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 03:43:52,547 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 03:43:52,548 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 03:43:52,549 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 03:43:52,550 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 03:43:52,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:43:52,556 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 03:43:52,556 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 03:43:52,557 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 03:43:52,557 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 03:43:52,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 03:43:52,558 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 03:43:52,558 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_d168a80a-516a-4954-a84c-0ec9e561c55c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d168a80a-516a-4954-a84c-0ec9e561c55c/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e5903ff87e76f5c38f2f015436bd4a2c11a1411b3a93f272aa9f876a0a3f4d37 [2021-10-29 03:43:52,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 03:43:52,875 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 03:43:52,878 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 03:43:52,880 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 03:43:52,881 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 03:43:52,882 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d168a80a-516a-4954-a84c-0ec9e561c55c/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound1.i [2021-10-29 03:43:52,961 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d168a80a-516a-4954-a84c-0ec9e561c55c/bin/ukojak-Rh5K9KB4LI/data/b39100f76/2797b9b74db4421fa7ccf96ccfec801e/FLAG10e3a7f15 [2021-10-29 03:43:53,414 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 03:43:53,415 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d168a80a-516a-4954-a84c-0ec9e561c55c/sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound1.i [2021-10-29 03:43:53,421 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d168a80a-516a-4954-a84c-0ec9e561c55c/bin/ukojak-Rh5K9KB4LI/data/b39100f76/2797b9b74db4421fa7ccf96ccfec801e/FLAG10e3a7f15 [2021-10-29 03:43:53,796 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d168a80a-516a-4954-a84c-0ec9e561c55c/bin/ukojak-Rh5K9KB4LI/data/b39100f76/2797b9b74db4421fa7ccf96ccfec801e [2021-10-29 03:43:53,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 03:43:53,800 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 03:43:53,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 03:43:53,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 03:43:53,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 03:43:53,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:43:53" (1/1) ... [2021-10-29 03:43:53,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a70c01a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:43:53, skipping insertion in model container [2021-10-29 03:43:53,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:43:53" (1/1) ... [2021-10-29 03:43:53,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 03:43:53,842 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 03:43:54,108 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_d168a80a-516a-4954-a84c-0ec9e561c55c/sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound1.i[950,963] [2021-10-29 03:43:54,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:43:54,134 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 03:43:54,145 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_d168a80a-516a-4954-a84c-0ec9e561c55c/sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound1.i[950,963] [2021-10-29 03:43:54,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:43:54,166 INFO L208 MainTranslator]: Completed translation [2021-10-29 03:43:54,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:43:54 WrapperNode [2021-10-29 03:43:54,166 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 03:43:54,168 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 03:43:54,168 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 03:43:54,168 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 03:43:54,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:43:54" (1/1) ... [2021-10-29 03:43:54,183 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:43:54" (1/1) ... [2021-10-29 03:43:54,202 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 03:43:54,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 03:43:54,203 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 03:43:54,203 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 03:43:54,211 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:43:54" (1/1) ... [2021-10-29 03:43:54,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:43:54" (1/1) ... [2021-10-29 03:43:54,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:43:54" (1/1) ... [2021-10-29 03:43:54,213 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:43:54" (1/1) ... [2021-10-29 03:43:54,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:43:54" (1/1) ... [2021-10-29 03:43:54,221 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:43:54" (1/1) ... [2021-10-29 03:43:54,222 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:43:54" (1/1) ... [2021-10-29 03:43:54,224 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 03:43:54,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 03:43:54,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 03:43:54,225 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 03:43:54,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:43:54" (1/1) ... [2021-10-29 03:43:54,233 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:43:54,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d168a80a-516a-4954-a84c-0ec9e561c55c/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 03:43:54,261 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d168a80a-516a-4954-a84c-0ec9e561c55c/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 03:43:54,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d168a80a-516a-4954-a84c-0ec9e561c55c/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 03:43:54,301 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-10-29 03:43:54,301 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-10-29 03:43:54,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 03:43:54,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 03:43:54,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 03:43:54,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 03:43:54,302 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-10-29 03:43:54,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-10-29 03:43:54,562 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 03:43:54,562 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-29 03:43:54,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:43:54 BoogieIcfgContainer [2021-10-29 03:43:54,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 03:43:54,566 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 03:43:54,566 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 03:43:54,576 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 03:43:54,576 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:43:54" (1/1) ... [2021-10-29 03:43:54,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 03:43:54,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:43:54,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2021-10-29 03:43:54,624 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2021-10-29 03:43:54,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 03:43:54,629 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:43:54,630 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:43:54,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:43:54,916 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 03:43:54,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:43:54,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 27 transitions. [2021-10-29 03:43:54,939 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2021-10-29 03:43:54,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-29 03:43:54,940 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:43:54,940 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:43:54,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:43:55,089 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 03:43:55,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:43:55,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 30 transitions. [2021-10-29 03:43:55,175 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2021-10-29 03:43:55,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 03:43:55,176 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:43:55,177 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:43:55,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:43:55,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 03:43:55,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:43:55,477 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 03:43:55,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:43:55,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 27 states and 36 transitions. [2021-10-29 03:43:55,681 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2021-10-29 03:43:55,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 03:43:55,683 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:43:55,684 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:43:55,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:43:55,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-29 03:43:55,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:43:56,151 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 03:43:57,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:43:57,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 35 states and 53 transitions. [2021-10-29 03:43:57,434 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 53 transitions. [2021-10-29 03:43:57,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-29 03:43:57,436 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:43:57,437 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:43:57,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:43:57,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-29 03:43:57,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:43:57,798 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 03:44:00,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:44:00,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 43 states and 76 transitions. [2021-10-29 03:44:00,252 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 76 transitions. [2021-10-29 03:44:00,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-29 03:44:00,253 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:44:00,254 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:44:00,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:44:00,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 03:44:00,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:44:00,516 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-29 03:44:01,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:44:01,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 43 states and 75 transitions. [2021-10-29 03:44:01,040 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 75 transitions. [2021-10-29 03:44:01,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-29 03:44:01,042 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:44:01,042 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:44:01,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:44:01,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 03:44:01,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:44:01,209 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-29 03:44:01,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:44:01,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 23 states and 26 transitions. [2021-10-29 03:44:01,914 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2021-10-29 03:44:01,914 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 03:44:01,915 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2021-10-29 03:44:01,933 INFO L759 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-10-29 03:44:02,084 INFO L565 CodeCheckObserver]: Invariant with dag size 1 [2021-10-29 03:44:02,088 INFO L565 CodeCheckObserver]: Invariant with dag size 1 [2021-10-29 03:44:02,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 03:44:02 ImpRootNode [2021-10-29 03:44:02,089 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 03:44:02,089 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 03:44:02,089 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 03:44:02,090 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 03:44:02,090 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:43:54" (3/4) ... [2021-10-29 03:44:02,093 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 03:44:02,099 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-10-29 03:44:02,099 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-10-29 03:44:02,103 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-29 03:44:02,104 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-29 03:44:02,104 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-29 03:44:02,104 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 03:44:02,152 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d168a80a-516a-4954-a84c-0ec9e561c55c/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 03:44:02,152 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 03:44:02,154 INFO L168 Benchmark]: Toolchain (without parser) took 8353.40 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 61.3 MB in the beginning and 85.5 MB in the end (delta: -24.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:44:02,155 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 96.5 MB. Free memory was 66.9 MB in the beginning and 66.8 MB in the end (delta: 29.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:44:02,156 INFO L168 Benchmark]: CACSL2BoogieTranslator took 359.75 ms. Allocated memory is still 96.5 MB. Free memory was 61.0 MB in the beginning and 70.6 MB in the end (delta: -9.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-29 03:44:02,156 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.42 ms. Allocated memory is still 96.5 MB. Free memory was 70.6 MB in the beginning and 69.1 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:44:02,157 INFO L168 Benchmark]: Boogie Preprocessor took 21.34 ms. Allocated memory is still 96.5 MB. Free memory was 69.1 MB in the beginning and 68.2 MB in the end (delta: 880.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:44:02,158 INFO L168 Benchmark]: RCFGBuilder took 340.03 ms. Allocated memory is still 96.5 MB. Free memory was 68.2 MB in the beginning and 56.6 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 03:44:02,159 INFO L168 Benchmark]: CodeCheck took 7523.11 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 56.6 MB in the beginning and 88.7 MB in the end (delta: -32.1 MB). Peak memory consumption was 47.4 MB. Max. memory is 16.1 GB. [2021-10-29 03:44:02,159 INFO L168 Benchmark]: Witness Printer took 63.38 ms. Allocated memory is still 119.5 MB. Free memory was 88.7 MB in the beginning and 85.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 03:44:02,163 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, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.3s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2384 SDtfs, 314 SDslu, 544 SDs, 0 SdLazy, 3316 SolverSat, 1146 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1067 GetRequests, 933 SyntacticMatches, 18 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4785 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 115 ConstructedInterpolants, 0 QuantifiedInterpolants, 402 SizeOfPredicates, 8 NumberOfNonLiveVariables, 367 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 17/21 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 - PositiveResult [Line: 21]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 96.5 MB. Free memory was 66.9 MB in the beginning and 66.8 MB in the end (delta: 29.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 359.75 ms. Allocated memory is still 96.5 MB. Free memory was 61.0 MB in the beginning and 70.6 MB in the end (delta: -9.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.42 ms. Allocated memory is still 96.5 MB. Free memory was 70.6 MB in the beginning and 69.1 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.34 ms. Allocated memory is still 96.5 MB. Free memory was 69.1 MB in the beginning and 68.2 MB in the end (delta: 880.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 340.03 ms. Allocated memory is still 96.5 MB. Free memory was 68.2 MB in the beginning and 56.6 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 7523.11 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 56.6 MB in the beginning and 88.7 MB in the end (delta: -32.1 MB). Peak memory consumption was 47.4 MB. Max. memory is 16.1 GB. * Witness Printer took 63.38 ms. Allocated memory is still 119.5 MB. Free memory was 88.7 MB in the beginning and 85.5 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 correct! [2021-10-29 03:44:02,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d168a80a-516a-4954-a84c-0ec9e561c55c/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...