./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound2.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_2e676902-4ddf-49db-896f-c5dbf14b7c48/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e676902-4ddf-49db-896f-c5dbf14b7c48/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_2e676902-4ddf-49db-896f-c5dbf14b7c48/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e676902-4ddf-49db-896f-c5dbf14b7c48/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e676902-4ddf-49db-896f-c5dbf14b7c48/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_2e676902-4ddf-49db-896f-c5dbf14b7c48/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 39b9505d3a064a677b57bccb6de3a4c04e873275d34ee3c16e80371638b07149 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 03:21:23,000 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 03:21:23,003 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 03:21:23,065 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 03:21:23,065 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 03:21:23,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 03:21:23,071 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 03:21:23,075 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 03:21:23,078 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 03:21:23,083 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 03:21:23,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 03:21:23,086 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 03:21:23,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 03:21:23,090 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 03:21:23,092 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 03:21:23,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 03:21:23,103 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 03:21:23,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 03:21:23,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 03:21:23,117 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 03:21:23,120 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 03:21:23,121 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 03:21:23,125 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 03:21:23,126 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 03:21:23,136 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 03:21:23,137 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 03:21:23,137 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 03:21:23,139 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 03:21:23,140 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 03:21:23,142 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 03:21:23,142 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 03:21:23,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 03:21:23,145 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 03:21:23,146 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 03:21:23,148 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 03:21:23,148 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 03:21:23,149 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 03:21:23,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 03:21:23,150 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 03:21:23,151 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 03:21:23,151 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 03:21:23,152 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e676902-4ddf-49db-896f-c5dbf14b7c48/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-29 03:21:23,195 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 03:21:23,196 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 03:21:23,197 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 03:21:23,197 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 03:21:23,198 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 03:21:23,198 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 03:21:23,199 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 03:21:23,199 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 03:21:23,199 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 03:21:23,206 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 03:21:23,207 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 03:21:23,207 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 03:21:23,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 03:21:23,208 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 03:21:23,208 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 03:21:23,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 03:21:23,208 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 03:21:23,209 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 03:21:23,209 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 03:21:23,209 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 03:21:23,209 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 03:21:23,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:21:23,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 03:21:23,210 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 03:21:23,210 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 03:21:23,211 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 03:21:23,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 03:21:23,211 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 03:21:23,211 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_2e676902-4ddf-49db-896f-c5dbf14b7c48/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e676902-4ddf-49db-896f-c5dbf14b7c48/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39b9505d3a064a677b57bccb6de3a4c04e873275d34ee3c16e80371638b07149 [2021-10-29 03:21:23,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 03:21:23,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 03:21:23,526 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 03:21:23,527 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 03:21:23,528 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 03:21:23,530 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e676902-4ddf-49db-896f-c5dbf14b7c48/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound2.c [2021-10-29 03:21:23,595 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e676902-4ddf-49db-896f-c5dbf14b7c48/bin/ukojak-Rh5K9KB4LI/data/41d4b3329/3916719a435e4a8790793775d63a8f51/FLAGe1476c6eb [2021-10-29 03:21:24,037 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 03:21:24,038 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e676902-4ddf-49db-896f-c5dbf14b7c48/sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound2.c [2021-10-29 03:21:24,050 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e676902-4ddf-49db-896f-c5dbf14b7c48/bin/ukojak-Rh5K9KB4LI/data/41d4b3329/3916719a435e4a8790793775d63a8f51/FLAGe1476c6eb [2021-10-29 03:21:24,434 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e676902-4ddf-49db-896f-c5dbf14b7c48/bin/ukojak-Rh5K9KB4LI/data/41d4b3329/3916719a435e4a8790793775d63a8f51 [2021-10-29 03:21:24,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 03:21:24,437 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 03:21:24,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 03:21:24,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 03:21:24,442 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 03:21:24,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:21:24" (1/1) ... [2021-10-29 03:21:24,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71591222 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:21:24, skipping insertion in model container [2021-10-29 03:21:24,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:21:24" (1/1) ... [2021-10-29 03:21:24,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 03:21:24,467 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 03:21:24,646 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_2e676902-4ddf-49db-896f-c5dbf14b7c48/sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound2.c[526,539] [2021-10-29 03:21:24,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:21:24,668 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 03:21:24,680 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_2e676902-4ddf-49db-896f-c5dbf14b7c48/sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound2.c[526,539] [2021-10-29 03:21:24,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:21:24,701 INFO L208 MainTranslator]: Completed translation [2021-10-29 03:21:24,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:21:24 WrapperNode [2021-10-29 03:21:24,701 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 03:21:24,703 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 03:21:24,703 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 03:21:24,703 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 03:21:24,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:21:24" (1/1) ... [2021-10-29 03:21:24,718 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:21:24" (1/1) ... [2021-10-29 03:21:24,736 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 03:21:24,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 03:21:24,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 03:21:24,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 03:21:24,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:21:24" (1/1) ... [2021-10-29 03:21:24,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:21:24" (1/1) ... [2021-10-29 03:21:24,747 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:21:24" (1/1) ... [2021-10-29 03:21:24,748 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:21:24" (1/1) ... [2021-10-29 03:21:24,752 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:21:24" (1/1) ... [2021-10-29 03:21:24,756 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:21:24" (1/1) ... [2021-10-29 03:21:24,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:21:24" (1/1) ... [2021-10-29 03:21:24,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 03:21:24,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 03:21:24,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 03:21:24,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 03:21:24,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:21:24" (1/1) ... [2021-10-29 03:21:24,770 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:21:24,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e676902-4ddf-49db-896f-c5dbf14b7c48/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 03:21:24,794 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e676902-4ddf-49db-896f-c5dbf14b7c48/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 03:21:24,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e676902-4ddf-49db-896f-c5dbf14b7c48/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 03:21:24,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 03:21:24,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 03:21:24,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 03:21:24,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 03:21:24,840 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-10-29 03:21:24,840 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-10-29 03:21:25,189 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 03:21:25,189 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-29 03:21:25,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:21:25 BoogieIcfgContainer [2021-10-29 03:21:25,192 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 03:21:25,193 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 03:21:25,193 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 03:21:25,203 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 03:21:25,204 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:21:25" (1/1) ... [2021-10-29 03:21:25,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 03:21:25,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:21:25,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 20 states and 30 transitions. [2021-10-29 03:21:25,249 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2021-10-29 03:21:25,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 03:21:25,253 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:21:25,259 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:21:25,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:21:25,481 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 03:21:25,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:21:25,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 24 states and 38 transitions. [2021-10-29 03:21:25,579 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 38 transitions. [2021-10-29 03:21:25,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 03:21:25,581 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:21:25,581 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:21:25,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:21:25,687 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 03:21:25,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:21:25,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 27 states and 42 transitions. [2021-10-29 03:21:25,793 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 42 transitions. [2021-10-29 03:21:25,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-29 03:21:25,795 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:21:25,796 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:21:25,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:21:25,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-29 03:21:25,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:21:26,237 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-29 03:21:26,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:21:26,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 31 states and 49 transitions. [2021-10-29 03:21:26,516 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 49 transitions. [2021-10-29 03:21:26,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-29 03:21:26,518 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:21:26,518 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:21:26,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:21:26,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-29 03:21:26,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:21:26,780 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-29 03:21:26,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:21:26,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 34 states and 55 transitions. [2021-10-29 03:21:26,990 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 55 transitions. [2021-10-29 03:21:26,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-29 03:21:26,993 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:21:26,993 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:21:27,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:21:27,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 03:21:27,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:21:27,240 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-29 03:21:27,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:21:27,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 38 states and 63 transitions. [2021-10-29 03:21:27,515 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 63 transitions. [2021-10-29 03:21:27,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-29 03:21:27,517 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:21:27,517 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:21:27,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:21:27,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-29 03:21:27,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:21:27,762 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-10-29 03:21:28,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:21:28,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 43 states and 73 transitions. [2021-10-29 03:21:28,356 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 73 transitions. [2021-10-29 03:21:28,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-29 03:21:28,358 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:21:28,358 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:21:28,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:21:28,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 03:21:28,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:21:28,520 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-10-29 03:21:28,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:21:28,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 46 states and 82 transitions. [2021-10-29 03:21:28,673 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 82 transitions. [2021-10-29 03:21:28,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-29 03:21:28,674 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:21:28,675 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:21:28,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:21:28,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-29 03:21:28,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:21:28,835 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-10-29 03:21:29,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:21:29,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 50 states and 90 transitions. [2021-10-29 03:21:29,212 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 90 transitions. [2021-10-29 03:21:29,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-29 03:21:29,214 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:21:29,214 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:21:29,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:21:29,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 03:21:29,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:21:29,370 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-10-29 03:21:29,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:21:29,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 51 states and 91 transitions. [2021-10-29 03:21:29,631 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 91 transitions. [2021-10-29 03:21:29,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-29 03:21:29,633 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:21:29,634 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:21:29,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:21:29,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-29 03:21:29,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:21:29,883 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-10-29 03:21:30,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:21:30,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 51 states and 90 transitions. [2021-10-29 03:21:30,082 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 90 transitions. [2021-10-29 03:21:30,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-10-29 03:21:30,084 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:21:30,084 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:21:30,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:21:30,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-29 03:21:30,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:21:30,411 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-10-29 03:21:31,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:21:31,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 56 states and 100 transitions. [2021-10-29 03:21:31,142 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 100 transitions. [2021-10-29 03:21:31,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-29 03:21:31,143 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:21:31,144 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:21:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:21:31,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-29 03:21:31,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:21:31,914 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-10-29 03:21:32,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:21:32,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 62 states and 115 transitions. [2021-10-29 03:21:32,866 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 115 transitions. [2021-10-29 03:21:32,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-10-29 03:21:32,868 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:21:32,868 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:21:32,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:21:32,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-29 03:21:32,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:21:33,466 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-10-29 03:21:33,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:21:33,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 64 states and 120 transitions. [2021-10-29 03:21:33,822 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 120 transitions. [2021-10-29 03:21:33,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-10-29 03:21:33,823 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:21:33,823 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:21:33,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:21:33,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-29 03:21:33,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:21:34,120 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-10-29 03:21:34,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:21:34,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 64 states and 119 transitions. [2021-10-29 03:21:34,338 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 119 transitions. [2021-10-29 03:21:34,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-10-29 03:21:34,340 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:21:34,340 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:21:34,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:21:34,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-29 03:21:34,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:21:35,178 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 20 proven. 9 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-10-29 03:21:35,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:21:35,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 67 states and 125 transitions. [2021-10-29 03:21:35,927 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 125 transitions. [2021-10-29 03:21:35,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-10-29 03:21:35,928 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:21:35,929 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:21:35,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:21:35,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 03:21:35,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:21:36,462 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2021-10-29 03:21:37,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:21:37,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 56 states and 100 transitions. [2021-10-29 03:21:37,644 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 100 transitions. [2021-10-29 03:21:37,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-10-29 03:21:37,645 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:21:37,646 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:21:37,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:21:37,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-29 03:21:37,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:21:38,048 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 22 proven. 9 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-10-29 03:21:38,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:21:38,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 56 states and 99 transitions. [2021-10-29 03:21:38,499 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 99 transitions. [2021-10-29 03:21:38,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-29 03:21:38,503 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:21:38,503 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:21:38,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:21:38,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-29 03:21:38,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:21:39,245 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 22 proven. 17 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-10-29 03:21:40,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:21:40,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 62 states and 113 transitions. [2021-10-29 03:21:40,691 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 113 transitions. [2021-10-29 03:21:40,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-10-29 03:21:40,694 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:21:40,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:21:40,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:21:40,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-29 03:21:40,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:21:41,443 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-10-29 03:21:41,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:21:41,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 64 states and 117 transitions. [2021-10-29 03:21:41,869 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 117 transitions. [2021-10-29 03:21:41,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-10-29 03:21:41,873 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:21:41,874 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:21:41,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:21:41,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 03:21:41,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:21:42,512 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 41 proven. 4 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-10-29 03:21:43,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:21:43,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 66 states and 127 transitions. [2021-10-29 03:21:43,395 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 127 transitions. [2021-10-29 03:21:43,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-10-29 03:21:43,396 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:21:43,396 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:21:43,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:21:43,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 29 conjunts are in the unsatisfiable core [2021-10-29 03:21:43,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:21:44,600 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 58 proven. 27 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-10-29 03:21:46,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:21:46,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 74 states and 143 transitions. [2021-10-29 03:21:46,399 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 143 transitions. [2021-10-29 03:21:46,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-10-29 03:21:46,400 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:21:46,401 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:21:46,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:21:46,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-29 03:21:46,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:21:46,904 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 28 proven. 25 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2021-10-29 03:21:47,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:21:47,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 76 states and 147 transitions. [2021-10-29 03:21:47,487 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 147 transitions. [2021-10-29 03:21:47,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-10-29 03:21:47,488 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:21:47,489 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:21:47,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:21:47,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-29 03:21:47,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:21:48,889 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 30 proven. 27 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2021-10-29 03:21:50,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:21:50,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 55 states and 80 transitions. [2021-10-29 03:21:50,432 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 80 transitions. [2021-10-29 03:21:50,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-10-29 03:21:50,433 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:21:50,434 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:21:50,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:21:50,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-29 03:21:50,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:21:51,207 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 32 proven. 27 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2021-10-29 03:21:52,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:21:52,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 50 states and 75 transitions. [2021-10-29 03:21:52,070 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 75 transitions. [2021-10-29 03:21:52,071 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 03:21:52,071 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 25 iterations. [2021-10-29 03:21:52,084 INFO L759 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-10-29 03:21:52,673 INFO L565 CodeCheckObserver]: Invariant with dag size 1 [2021-10-29 03:21:52,679 INFO L565 CodeCheckObserver]: Invariant with dag size 38 [2021-10-29 03:21:52,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 03:21:52 ImpRootNode [2021-10-29 03:21:52,703 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 03:21:52,704 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 03:21:52,704 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 03:21:52,705 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 03:21:52,705 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:21:25" (3/4) ... [2021-10-29 03:21:52,708 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 03:21:52,714 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-10-29 03:21:52,720 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-10-29 03:21:52,720 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-29 03:21:52,721 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-29 03:21:52,721 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 03:21:52,776 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e676902-4ddf-49db-896f-c5dbf14b7c48/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 03:21:52,776 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 03:21:52,778 INFO L168 Benchmark]: Toolchain (without parser) took 28339.24 ms. Allocated memory was 109.1 MB in the beginning and 237.0 MB in the end (delta: 127.9 MB). Free memory was 69.2 MB in the beginning and 61.3 MB in the end (delta: 7.9 MB). Peak memory consumption was 134.6 MB. Max. memory is 16.1 GB. [2021-10-29 03:21:52,778 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 109.1 MB. Free memory was 85.4 MB in the beginning and 85.4 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:21:52,779 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.81 ms. Allocated memory is still 109.1 MB. Free memory was 69.0 MB in the beginning and 85.2 MB in the end (delta: -16.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 03:21:52,779 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.03 ms. Allocated memory is still 109.1 MB. Free memory was 85.2 MB in the beginning and 83.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:21:52,780 INFO L168 Benchmark]: Boogie Preprocessor took 21.83 ms. Allocated memory is still 109.1 MB. Free memory was 83.7 MB in the beginning and 82.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:21:52,780 INFO L168 Benchmark]: RCFGBuilder took 432.00 ms. Allocated memory is still 109.1 MB. Free memory was 82.5 MB in the beginning and 69.5 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 03:21:52,781 INFO L168 Benchmark]: CodeCheck took 27510.64 ms. Allocated memory was 109.1 MB in the beginning and 237.0 MB in the end (delta: 127.9 MB). Free memory was 69.5 MB in the beginning and 64.4 MB in the end (delta: 5.1 MB). Peak memory consumption was 134.8 MB. Max. memory is 16.1 GB. [2021-10-29 03:21:52,781 INFO L168 Benchmark]: Witness Printer took 72.29 ms. Allocated memory is still 237.0 MB. Free memory was 64.4 MB in the beginning and 61.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:21:52,784 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, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 26.8s, OverallIterations: 25, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 186384384 SDtfs, 61602208 SDslu, 131981296 SDs, 0 SdLazy, 419066204 SolverSat, 161089116 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10591 GetRequests, 10012 SyntacticMatches, 297 SemanticMatches, 282 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48350 ImplicationChecksByTransitivity, 15.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 10.8s InterpolantComputationTime, 1258 NumberOfCodeBlocks, 1258 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 1234 ConstructedInterpolants, 0 QuantifiedInterpolants, 5502 SizeOfPredicates, 48 NumberOfNonLiveVariables, 3364 ConjunctsInSsa, 359 ConjunctsInUnsatCore, 24 InterpolantComputations, 10 PerfectInterpolantSequences, 4234/4433 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: 17]: 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: 59]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: ((((((0 <= A && A <= 2) && B == d) || !(q == 0)) || !(A == r)) || ((!((B == 1 && p == 2) && d == 2 * B) && !((B == 1 && p == 1) && B == d)) && !((p == 4 && d == 4 * B) && B == 1))) || (d == 4 * B && 2 * B <= r)) || (B <= r && d == 2 * B) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 109.1 MB. Free memory was 85.4 MB in the beginning and 85.4 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 262.81 ms. Allocated memory is still 109.1 MB. Free memory was 69.0 MB in the beginning and 85.2 MB in the end (delta: -16.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.03 ms. Allocated memory is still 109.1 MB. Free memory was 85.2 MB in the beginning and 83.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.83 ms. Allocated memory is still 109.1 MB. Free memory was 83.7 MB in the beginning and 82.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 432.00 ms. Allocated memory is still 109.1 MB. Free memory was 82.5 MB in the beginning and 69.5 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 27510.64 ms. Allocated memory was 109.1 MB in the beginning and 237.0 MB in the end (delta: 127.9 MB). Free memory was 69.5 MB in the beginning and 64.4 MB in the end (delta: 5.1 MB). Peak memory consumption was 134.8 MB. Max. memory is 16.1 GB. * Witness Printer took 72.29 ms. Allocated memory is still 237.0 MB. Free memory was 64.4 MB in the beginning and 61.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! [2021-10-29 03:21:52,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e676902-4ddf-49db-896f-c5dbf14b7c48/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...