./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound5.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_2b2ed7d7-8338-4b17-bf00-279f0742d498/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b2ed7d7-8338-4b17-bf00-279f0742d498/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_2b2ed7d7-8338-4b17-bf00-279f0742d498/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b2ed7d7-8338-4b17-bf00-279f0742d498/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b2ed7d7-8338-4b17-bf00-279f0742d498/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_2b2ed7d7-8338-4b17-bf00-279f0742d498/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 b2a54f54b02d2bb65a6f46eeae11edba1907f4f082d2aaa313102e422e7e6122 .................................................................................................................................................................................................................................................................................................................................................................................................................. 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 04:16:31,735 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:16:31,738 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:16:31,772 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:16:31,773 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:16:31,775 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:16:31,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:16:31,779 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:16:31,781 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:16:31,783 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:16:31,784 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:16:31,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:16:31,786 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:16:31,787 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:16:31,789 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:16:31,791 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:16:31,792 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:16:31,793 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:16:31,796 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:16:31,798 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:16:31,800 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:16:31,802 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:16:31,803 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:16:31,804 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:16:31,808 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:16:31,809 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:16:31,809 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:16:31,810 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:16:31,811 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:16:31,812 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:16:31,812 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:16:31,818 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:16:31,819 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:16:31,820 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:16:31,821 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:16:31,822 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:16:31,823 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:16:31,824 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:16:31,824 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:16:31,825 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:16:31,826 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:16:31,827 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b2ed7d7-8338-4b17-bf00-279f0742d498/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-29 04:16:31,863 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:16:31,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:16:31,865 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:16:31,865 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 04:16:31,866 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 04:16:31,866 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 04:16:31,866 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:16:31,867 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:16:31,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:16:31,873 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:16:31,874 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:16:31,875 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:16:31,875 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:16:31,875 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:16:31,875 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:16:31,876 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:16:31,876 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:16:31,876 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:16:31,876 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 04:16:31,876 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 04:16:31,877 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:16:31,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:16:31,877 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:16:31,877 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:16:31,878 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:16:31,878 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 04:16:31,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:16:31,878 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:16:31,878 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_2b2ed7d7-8338-4b17-bf00-279f0742d498/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b2ed7d7-8338-4b17-bf00-279f0742d498/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2a54f54b02d2bb65a6f46eeae11edba1907f4f082d2aaa313102e422e7e6122 [2021-10-29 04:16:32,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:16:32,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:16:32,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:16:32,209 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:16:32,210 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:16:32,211 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b2ed7d7-8338-4b17-bf00-279f0742d498/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound5.c [2021-10-29 04:16:32,278 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b2ed7d7-8338-4b17-bf00-279f0742d498/bin/ukojak-Rh5K9KB4LI/data/2c718e79a/0bb0911d964c496c82433824dd3216e9/FLAG0712c6770 [2021-10-29 04:16:32,715 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:16:32,716 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b2ed7d7-8338-4b17-bf00-279f0742d498/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound5.c [2021-10-29 04:16:32,722 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b2ed7d7-8338-4b17-bf00-279f0742d498/bin/ukojak-Rh5K9KB4LI/data/2c718e79a/0bb0911d964c496c82433824dd3216e9/FLAG0712c6770 [2021-10-29 04:16:33,102 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b2ed7d7-8338-4b17-bf00-279f0742d498/bin/ukojak-Rh5K9KB4LI/data/2c718e79a/0bb0911d964c496c82433824dd3216e9 [2021-10-29 04:16:33,107 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:16:33,109 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:16:33,111 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:16:33,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:16:33,115 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:16:33,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:16:33" (1/1) ... [2021-10-29 04:16:33,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@597486f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:16:33, skipping insertion in model container [2021-10-29 04:16:33,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:16:33" (1/1) ... [2021-10-29 04:16:33,135 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:16:33,150 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:16:33,335 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_2b2ed7d7-8338-4b17-bf00-279f0742d498/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound5.c[458,471] [2021-10-29 04:16:33,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:16:33,358 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:16:33,370 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_2b2ed7d7-8338-4b17-bf00-279f0742d498/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound5.c[458,471] [2021-10-29 04:16:33,377 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:16:33,390 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:16:33,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:16:33 WrapperNode [2021-10-29 04:16:33,391 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:16:33,392 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:16:33,392 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:16:33,392 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:16:33,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:16:33" (1/1) ... [2021-10-29 04:16:33,406 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:16:33" (1/1) ... [2021-10-29 04:16:33,424 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:16:33,425 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:16:33,425 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:16:33,425 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:16:33,433 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:16:33" (1/1) ... [2021-10-29 04:16:33,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:16:33" (1/1) ... [2021-10-29 04:16:33,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:16:33" (1/1) ... [2021-10-29 04:16:33,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:16:33" (1/1) ... [2021-10-29 04:16:33,439 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:16:33" (1/1) ... [2021-10-29 04:16:33,443 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:16:33" (1/1) ... [2021-10-29 04:16:33,444 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:16:33" (1/1) ... [2021-10-29 04:16:33,445 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:16:33,446 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:16:33,447 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:16:33,447 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:16:33,448 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:16:33" (1/1) ... [2021-10-29 04:16:33,464 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:16:33,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b2ed7d7-8338-4b17-bf00-279f0742d498/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 04:16:33,486 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b2ed7d7-8338-4b17-bf00-279f0742d498/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 04:16:33,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b2ed7d7-8338-4b17-bf00-279f0742d498/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 04:16:33,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 04:16:33,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:16:33,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:16:33,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:16:33,527 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-10-29 04:16:33,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-10-29 04:16:33,771 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:16:33,772 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-29 04:16:33,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:16:33 BoogieIcfgContainer [2021-10-29 04:16:33,774 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:16:33,775 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 04:16:33,776 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 04:16:33,787 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 04:16:33,787 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:16:33" (1/1) ... [2021-10-29 04:16:33,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:16:33,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:33,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2021-10-29 04:16:33,836 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2021-10-29 04:16:33,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 04:16:33,854 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:33,855 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:34,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:34,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 04:16:34,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:16:34,161 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 04:16:34,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:34,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2021-10-29 04:16:34,758 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2021-10-29 04:16:34,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 04:16:34,761 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:34,761 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:34,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:34,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 04:16:34,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:16:34,910 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:16:34,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:34,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 20 states and 30 transitions. [2021-10-29 04:16:34,950 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2021-10-29 04:16:34,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 04:16:34,951 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:34,952 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:35,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:35,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 04:16:35,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:16:35,126 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 04:16:35,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:35,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 23 states and 35 transitions. [2021-10-29 04:16:35,318 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 35 transitions. [2021-10-29 04:16:35,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 04:16:35,319 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:35,319 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:35,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:35,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 04:16:35,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:16:35,647 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 04:16:35,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:35,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 27 states and 44 transitions. [2021-10-29 04:16:35,904 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 44 transitions. [2021-10-29 04:16:35,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-29 04:16:35,906 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:35,907 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:35,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:35,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-29 04:16:35,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:16:36,225 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-29 04:16:36,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:36,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 34 states and 61 transitions. [2021-10-29 04:16:36,718 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 61 transitions. [2021-10-29 04:16:36,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-29 04:16:36,720 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:36,721 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:36,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:36,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-29 04:16:36,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:16:36,931 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-29 04:16:37,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:37,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 37 states and 67 transitions. [2021-10-29 04:16:37,261 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 67 transitions. [2021-10-29 04:16:37,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-29 04:16:37,263 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:37,263 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:37,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:37,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 04:16:37,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:16:37,393 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-29 04:16:37,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:37,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 38 states and 69 transitions. [2021-10-29 04:16:37,563 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 69 transitions. [2021-10-29 04:16:37,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-29 04:16:37,565 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:37,565 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:37,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:37,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-29 04:16:37,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:16:37,906 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-29 04:16:38,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:38,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 45 states and 84 transitions. [2021-10-29 04:16:38,634 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 84 transitions. [2021-10-29 04:16:38,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-29 04:16:38,635 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:38,635 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:38,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:38,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-29 04:16:38,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:16:38,940 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-29 04:16:39,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:39,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 48 states and 90 transitions. [2021-10-29 04:16:39,337 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 90 transitions. [2021-10-29 04:16:39,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-29 04:16:39,338 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:39,338 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:39,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:39,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 04:16:39,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:16:39,512 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-10-29 04:16:39,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:39,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 49 states and 92 transitions. [2021-10-29 04:16:39,684 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 92 transitions. [2021-10-29 04:16:39,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-29 04:16:39,685 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:39,685 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:39,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:39,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-29 04:16:39,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:16:40,063 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 8 proven. 18 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-10-29 04:16:41,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:41,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 56 states and 107 transitions. [2021-10-29 04:16:41,016 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 107 transitions. [2021-10-29 04:16:41,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-29 04:16:41,018 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:41,018 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:41,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:41,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-29 04:16:41,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:16:41,372 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 8 proven. 26 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-10-29 04:16:41,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:41,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 59 states and 113 transitions. [2021-10-29 04:16:41,903 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 113 transitions. [2021-10-29 04:16:41,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-29 04:16:41,904 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:41,905 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:41,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:41,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 04:16:41,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:16:42,072 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-10-29 04:16:42,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:42,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 60 states and 115 transitions. [2021-10-29 04:16:42,305 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 115 transitions. [2021-10-29 04:16:42,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-29 04:16:42,307 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:42,307 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:42,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:42,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-29 04:16:42,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:16:42,756 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 10 proven. 30 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-10-29 04:16:43,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:43,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 67 states and 130 transitions. [2021-10-29 04:16:43,922 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 130 transitions. [2021-10-29 04:16:43,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-29 04:16:43,923 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:43,923 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:44,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:44,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-29 04:16:44,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:16:44,379 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-10-29 04:16:45,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:45,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 70 states and 136 transitions. [2021-10-29 04:16:45,009 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 136 transitions. [2021-10-29 04:16:45,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-29 04:16:45,010 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:45,010 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:45,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:45,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 04:16:45,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:16:45,196 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 27 proven. 4 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2021-10-29 04:16:45,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:45,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 71 states and 138 transitions. [2021-10-29 04:16:45,479 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 138 transitions. [2021-10-29 04:16:45,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-29 04:16:45,480 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:45,480 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:45,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:45,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-29 04:16:45,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:16:45,973 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 12 proven. 45 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-10-29 04:16:47,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:47,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 78 states and 153 transitions. [2021-10-29 04:16:47,231 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 153 transitions. [2021-10-29 04:16:47,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-10-29 04:16:47,232 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:47,232 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:47,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:47,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-29 04:16:47,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:16:48,066 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-10-29 04:16:50,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:50,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 39 states and 57 transitions. [2021-10-29 04:16:50,298 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 57 transitions. [2021-10-29 04:16:50,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-29 04:16:50,299 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:50,299 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:50,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:50,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 04:16:50,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:16:50,487 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 33 proven. 4 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2021-10-29 04:16:51,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:51,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 32 states and 48 transitions. [2021-10-29 04:16:51,084 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 48 transitions. [2021-10-29 04:16:51,084 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 04:16:51,084 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 20 iterations. [2021-10-29 04:16:51,091 INFO L759 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-10-29 04:16:51,298 INFO L565 CodeCheckObserver]: Invariant with dag size 1 [2021-10-29 04:16:51,301 INFO L565 CodeCheckObserver]: Invariant with dag size 1 [2021-10-29 04:16:51,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 04:16:51 ImpRootNode [2021-10-29 04:16:51,302 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 04:16:51,302 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:16:51,302 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:16:51,303 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:16:51,303 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:16:33" (3/4) ... [2021-10-29 04:16:51,305 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 04:16:51,310 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-10-29 04:16:51,313 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-29 04:16:51,313 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-29 04:16:51,313 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-29 04:16:51,314 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 04:16:51,351 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b2ed7d7-8338-4b17-bf00-279f0742d498/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 04:16:51,351 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:16:51,353 INFO L168 Benchmark]: Toolchain (without parser) took 18243.16 ms. Allocated memory was 138.4 MB in the beginning and 243.3 MB in the end (delta: 104.9 MB). Free memory was 109.5 MB in the beginning and 168.3 MB in the end (delta: -58.9 MB). Peak memory consumption was 46.8 MB. Max. memory is 16.1 GB. [2021-10-29 04:16:51,353 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 96.5 MB. Free memory is still 52.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:16:51,354 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.54 ms. Allocated memory is still 138.4 MB. Free memory was 109.1 MB in the beginning and 113.7 MB in the end (delta: -4.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:16:51,355 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.20 ms. Allocated memory is still 138.4 MB. Free memory was 113.7 MB in the beginning and 112.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:16:51,356 INFO L168 Benchmark]: Boogie Preprocessor took 21.15 ms. Allocated memory is still 138.4 MB. Free memory was 112.3 MB in the beginning and 111.3 MB in the end (delta: 989.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:16:51,356 INFO L168 Benchmark]: RCFGBuilder took 328.27 ms. Allocated memory is still 138.4 MB. Free memory was 111.0 MB in the beginning and 99.8 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:16:51,357 INFO L168 Benchmark]: CodeCheck took 17526.49 ms. Allocated memory was 138.4 MB in the beginning and 243.3 MB in the end (delta: 104.9 MB). Free memory was 99.8 MB in the beginning and 171.4 MB in the end (delta: -71.6 MB). Peak memory consumption was 35.3 MB. Max. memory is 16.1 GB. [2021-10-29 04:16:51,358 INFO L168 Benchmark]: Witness Printer took 48.88 ms. Allocated memory is still 243.3 MB. Free memory was 170.4 MB in the beginning and 168.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:16:51,362 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, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.2s, OverallIterations: 20, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 3801088 SDtfs, 1855108 SDslu, 2471712 SDs, 0 SdLazy, 12679968 SolverSat, 4308656 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 20.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5094 GetRequests, 4774 SyntacticMatches, 116 SemanticMatches, 204 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17691 ImplicationChecksByTransitivity, 10.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 573 NumberOfCodeBlocks, 573 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 554 ConstructedInterpolants, 0 QuantifiedInterpolants, 2267 SizeOfPredicates, 31 NumberOfNonLiveVariables, 2067 ConjunctsInSsa, 285 ConjunctsInUnsatCore, 19 InterpolantComputations, 3 PerfectInterpolantSequences, 780/999 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: 12]: 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: 27]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 96.5 MB. Free memory is still 52.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 279.54 ms. Allocated memory is still 138.4 MB. Free memory was 109.1 MB in the beginning and 113.7 MB in the end (delta: -4.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.20 ms. Allocated memory is still 138.4 MB. Free memory was 113.7 MB in the beginning and 112.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.15 ms. Allocated memory is still 138.4 MB. Free memory was 112.3 MB in the beginning and 111.3 MB in the end (delta: 989.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 328.27 ms. Allocated memory is still 138.4 MB. Free memory was 111.0 MB in the beginning and 99.8 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 17526.49 ms. Allocated memory was 138.4 MB in the beginning and 243.3 MB in the end (delta: 104.9 MB). Free memory was 99.8 MB in the beginning and 171.4 MB in the end (delta: -71.6 MB). Peak memory consumption was 35.3 MB. Max. memory is 16.1 GB. * Witness Printer took 48.88 ms. Allocated memory is still 243.3 MB. Free memory was 170.4 MB in the beginning and 168.3 MB in the end (delta: 2.1 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 04:16:51,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b2ed7d7-8338-4b17-bf00-279f0742d498/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...