./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/eqn1f.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_fc7035c5-e99c-4fd4-81f9-9dcf94ff1b73/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7035c5-e99c-4fd4-81f9-9dcf94ff1b73/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_fc7035c5-e99c-4fd4-81f9-9dcf94ff1b73/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7035c5-e99c-4fd4-81f9-9dcf94ff1b73/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/eqn1f.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7035c5-e99c-4fd4-81f9-9dcf94ff1b73/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_fc7035c5-e99c-4fd4-81f9-9dcf94ff1b73/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 18b341884f23a5462ed7b5a2994c7faf53737afb439f1d86e003040fe93a66eb ........................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 02:57:40,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 02:57:40,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 02:57:41,044 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 02:57:41,044 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 02:57:41,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 02:57:41,052 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 02:57:41,057 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 02:57:41,060 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 02:57:41,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 02:57:41,067 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 02:57:41,069 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 02:57:41,070 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 02:57:41,072 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 02:57:41,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 02:57:41,080 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 02:57:41,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 02:57:41,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 02:57:41,088 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 02:57:41,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 02:57:41,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 02:57:41,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 02:57:41,103 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 02:57:41,104 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 02:57:41,113 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 02:57:41,114 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 02:57:41,115 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 02:57:41,117 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 02:57:41,117 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 02:57:41,119 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 02:57:41,119 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 02:57:41,120 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 02:57:41,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 02:57:41,124 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 02:57:41,126 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 02:57:41,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 02:57:41,127 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 02:57:41,127 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 02:57:41,127 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 02:57:41,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 02:57:41,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 02:57:41,130 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7035c5-e99c-4fd4-81f9-9dcf94ff1b73/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-29 02:57:41,172 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 02:57:41,172 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 02:57:41,174 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 02:57:41,174 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 02:57:41,175 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 02:57:41,175 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 02:57:41,175 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 02:57:41,176 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 02:57:41,176 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 02:57:41,176 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 02:57:41,177 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 02:57:41,178 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 02:57:41,178 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 02:57:41,178 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 02:57:41,178 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 02:57:41,179 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 02:57:41,179 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 02:57:41,179 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 02:57:41,179 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 02:57:41,179 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 02:57:41,180 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 02:57:41,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 02:57:41,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 02:57:41,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 02:57:41,181 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 02:57:41,181 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 02:57:41,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 02:57:41,181 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 02:57:41,182 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_fc7035c5-e99c-4fd4-81f9-9dcf94ff1b73/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7035c5-e99c-4fd4-81f9-9dcf94ff1b73/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18b341884f23a5462ed7b5a2994c7faf53737afb439f1d86e003040fe93a66eb [2021-10-29 02:57:41,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 02:57:41,510 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 02:57:41,514 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 02:57:41,515 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 02:57:41,516 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 02:57:41,517 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7035c5-e99c-4fd4-81f9-9dcf94ff1b73/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/array-fpi/eqn1f.c [2021-10-29 02:57:41,612 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7035c5-e99c-4fd4-81f9-9dcf94ff1b73/bin/ukojak-Rh5K9KB4LI/data/f1d613856/7376bcb8dfe94f899474d58cc39ce261/FLAG8c5f156e9 [2021-10-29 02:57:42,056 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 02:57:42,057 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7035c5-e99c-4fd4-81f9-9dcf94ff1b73/sv-benchmarks/c/array-fpi/eqn1f.c [2021-10-29 02:57:42,063 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7035c5-e99c-4fd4-81f9-9dcf94ff1b73/bin/ukojak-Rh5K9KB4LI/data/f1d613856/7376bcb8dfe94f899474d58cc39ce261/FLAG8c5f156e9 [2021-10-29 02:57:42,441 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7035c5-e99c-4fd4-81f9-9dcf94ff1b73/bin/ukojak-Rh5K9KB4LI/data/f1d613856/7376bcb8dfe94f899474d58cc39ce261 [2021-10-29 02:57:42,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 02:57:42,445 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 02:57:42,447 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 02:57:42,448 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 02:57:42,451 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 02:57:42,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 02:57:42" (1/1) ... [2021-10-29 02:57:42,454 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14e66631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:57:42, skipping insertion in model container [2021-10-29 02:57:42,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 02:57:42" (1/1) ... [2021-10-29 02:57:42,464 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 02:57:42,481 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 02:57:42,636 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_fc7035c5-e99c-4fd4-81f9-9dcf94ff1b73/sv-benchmarks/c/array-fpi/eqn1f.c[588,601] [2021-10-29 02:57:42,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 02:57:42,666 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 02:57:42,678 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_fc7035c5-e99c-4fd4-81f9-9dcf94ff1b73/sv-benchmarks/c/array-fpi/eqn1f.c[588,601] [2021-10-29 02:57:42,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 02:57:42,699 INFO L208 MainTranslator]: Completed translation [2021-10-29 02:57:42,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:57:42 WrapperNode [2021-10-29 02:57:42,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 02:57:42,701 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 02:57:42,701 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 02:57:42,701 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 02:57:42,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:57:42" (1/1) ... [2021-10-29 02:57:42,716 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:57:42" (1/1) ... [2021-10-29 02:57:42,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 02:57:42,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 02:57:42,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 02:57:42,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 02:57:42,749 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:57:42" (1/1) ... [2021-10-29 02:57:42,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:57:42" (1/1) ... [2021-10-29 02:57:42,763 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:57:42" (1/1) ... [2021-10-29 02:57:42,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:57:42" (1/1) ... [2021-10-29 02:57:42,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:57:42" (1/1) ... [2021-10-29 02:57:42,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:57:42" (1/1) ... [2021-10-29 02:57:42,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:57:42" (1/1) ... [2021-10-29 02:57:42,794 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 02:57:42,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 02:57:42,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 02:57:42,795 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 02:57:42,798 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:57:42" (1/1) ... [2021-10-29 02:57:42,805 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 02:57:42,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7035c5-e99c-4fd4-81f9-9dcf94ff1b73/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 02:57:42,833 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7035c5-e99c-4fd4-81f9-9dcf94ff1b73/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 02:57:42,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7035c5-e99c-4fd4-81f9-9dcf94ff1b73/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 02:57:42,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 02:57:42,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 02:57:42,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 02:57:42,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-29 02:57:42,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 02:57:42,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 02:57:42,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 02:57:43,162 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 02:57:43,162 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-29 02:57:43,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 02:57:43 BoogieIcfgContainer [2021-10-29 02:57:43,165 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 02:57:43,166 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 02:57:43,167 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 02:57:43,178 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 02:57:43,178 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 02:57:43" (1/1) ... [2021-10-29 02:57:43,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 02:57:43,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:57:43,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2021-10-29 02:57:43,254 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2021-10-29 02:57:43,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 02:57:43,280 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:57:43,281 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:57:43,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:57:43,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-29 02:57:43,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:57:43,652 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-10-29 02:57:43,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 23 [2021-10-29 02:57:43,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:57:43,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:57:43,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 15 states and 27 transitions. [2021-10-29 02:57:43,960 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 27 transitions. [2021-10-29 02:57:43,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 02:57:43,960 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:57:43,961 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:57:44,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:57:44,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 02:57:44,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:57:44,148 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:57:44,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:57:44,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 17 states and 36 transitions. [2021-10-29 02:57:44,397 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 36 transitions. [2021-10-29 02:57:44,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 02:57:44,400 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:57:44,401 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:57:44,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:57:44,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 02:57:44,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:57:44,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:57:44,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:57:44,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 20 states and 48 transitions. [2021-10-29 02:57:44,956 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 48 transitions. [2021-10-29 02:57:44,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 02:57:44,957 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:57:44,957 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:57:45,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:57:45,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-29 02:57:45,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:57:45,070 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-10-29 02:57:45,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 23 [2021-10-29 02:57:45,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-10-29 02:57:45,218 INFO L354 Elim1Store]: treesize reduction 74, result has 26.0 percent of original size [2021-10-29 02:57:45,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 52 [2021-10-29 02:57:45,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 02:57:45,564 INFO L354 Elim1Store]: treesize reduction 204, result has 13.2 percent of original size [2021-10-29 02:57:45,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 70 treesize of output 70 [2021-10-29 02:57:46,081 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:57:47,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:57:47,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 18 states and 35 transitions. [2021-10-29 02:57:47,097 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 35 transitions. [2021-10-29 02:57:47,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 02:57:47,098 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:57:47,098 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:57:47,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:57:47,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 02:57:47,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:57:47,258 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 02:57:47,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:57:47,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 22 states and 43 transitions. [2021-10-29 02:57:47,687 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 43 transitions. [2021-10-29 02:57:47,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 02:57:47,688 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:57:47,688 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:57:47,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:57:47,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 02:57:47,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:57:47,886 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:57:48,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:57:48,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 25 states and 52 transitions. [2021-10-29 02:57:48,966 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 52 transitions. [2021-10-29 02:57:48,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 02:57:48,967 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:57:48,967 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:57:49,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:57:49,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-29 02:57:49,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:57:49,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-10-29 02:57:49,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2021-10-29 02:57:49,094 INFO L354 Elim1Store]: treesize reduction 74, result has 26.0 percent of original size [2021-10-29 02:57:49,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 52 [2021-10-29 02:57:49,286 INFO L354 Elim1Store]: treesize reduction 200, result has 28.3 percent of original size [2021-10-29 02:57:49,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 69 treesize of output 116 [2021-10-29 02:57:51,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 02:57:51,192 INFO L354 Elim1Store]: treesize reduction 152, result has 0.7 percent of original size [2021-10-29 02:57:51,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 123 treesize of output 121 [2021-10-29 02:57:51,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 02:57:52,254 INFO L354 Elim1Store]: treesize reduction 962, result has 8.9 percent of original size [2021-10-29 02:57:52,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 159 treesize of output 168 [2021-10-29 02:57:55,471 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:57:57,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:57:57,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 23 states and 37 transitions. [2021-10-29 02:57:57,374 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 37 transitions. [2021-10-29 02:57:57,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 02:57:57,374 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:57:57,374 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:57:57,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:57:57,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-29 02:57:57,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:57:57,437 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-10-29 02:57:57,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 19 [2021-10-29 02:57:57,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-10-29 02:57:57,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 02:57:57,586 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-29 02:57:57,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 32 [2021-10-29 02:57:57,809 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-29 02:57:57,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 02:57:57,820 INFO L354 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-10-29 02:57:57,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 44 [2021-10-29 02:57:59,686 INFO L354 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2021-10-29 02:57:59,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 78 treesize of output 42 [2021-10-29 02:57:59,695 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:58:25,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:58:25,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 29 states and 48 transitions. [2021-10-29 02:58:25,535 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 48 transitions. [2021-10-29 02:58:25,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 02:58:25,536 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:58:25,537 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:58:25,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:58:25,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 02:58:25,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:58:26,003 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-29 02:58:26,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:58:26,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 27 states and 42 transitions. [2021-10-29 02:58:26,955 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 42 transitions. [2021-10-29 02:58:26,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 02:58:26,956 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:58:26,956 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:58:27,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:58:27,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 02:58:27,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:58:27,055 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-29 02:58:27,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:58:27,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 28 states and 43 transitions. [2021-10-29 02:58:27,900 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 43 transitions. [2021-10-29 02:58:27,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 02:58:27,901 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:58:27,901 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:58:27,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:58:27,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-29 02:58:27,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:58:27,986 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-10-29 02:58:27,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 19 [2021-10-29 02:58:27,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-10-29 02:58:28,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 02:58:28,030 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-29 02:58:28,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 32 [2021-10-29 02:58:28,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 02:58:28,262 INFO L354 Elim1Store]: treesize reduction 186, result has 16.2 percent of original size [2021-10-29 02:58:28,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 59 treesize of output 63 [2021-10-29 02:58:28,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 02:58:28,758 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-29 02:58:28,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 02:58:28,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 02:58:28,761 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-29 02:58:28,761 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-29 02:58:28,809 INFO L354 Elim1Store]: treesize reduction 339, result has 8.9 percent of original size [2021-10-29 02:58:28,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 24 case distinctions, treesize of input 91 treesize of output 104 [2021-10-29 02:58:29,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 02:58:29,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 02:58:29,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 02:58:29,101 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-29 02:58:29,140 INFO L354 Elim1Store]: treesize reduction 216, result has 8.9 percent of original size [2021-10-29 02:58:29,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 88 treesize of output 84 [2021-10-29 02:58:31,775 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:58:48,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:58:48,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 28 states and 42 transitions. [2021-10-29 02:58:48,408 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 42 transitions. [2021-10-29 02:58:48,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 02:58:48,409 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:58:48,409 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:58:48,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:58:48,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 02:58:48,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 02:58:48,714 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 02:58:55,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:58:55,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 35 states and 53 transitions. [2021-10-29 02:58:55,116 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 53 transitions. [2021-10-29 02:58:55,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 02:58:55,117 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:58:55,118 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:58:55,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 02:58:55,163 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 02:58:55,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 02:58:55,245 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 13 iterations. [2021-10-29 02:58:55,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 02:58:55 ImpRootNode [2021-10-29 02:58:55,297 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 02:58:55,297 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 02:58:55,297 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 02:58:55,298 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 02:58:55,309 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 02:57:43" (3/4) ... [2021-10-29 02:58:55,311 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 02:58:55,399 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7035c5-e99c-4fd4-81f9-9dcf94ff1b73/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 02:58:55,400 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 02:58:55,403 INFO L168 Benchmark]: Toolchain (without parser) took 72955.22 ms. Allocated memory was 119.5 MB in the beginning and 211.8 MB in the end (delta: 92.3 MB). Free memory was 86.7 MB in the beginning and 141.3 MB in the end (delta: -54.5 MB). Peak memory consumption was 38.2 MB. Max. memory is 16.1 GB. [2021-10-29 02:58:55,413 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 90.2 MB. Free memory is still 47.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 02:58:55,414 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.22 ms. Allocated memory is still 119.5 MB. Free memory was 86.5 MB in the beginning and 94.8 MB in the end (delta: -8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 02:58:55,414 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.23 ms. Allocated memory is still 119.5 MB. Free memory was 94.8 MB in the beginning and 93.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 02:58:55,415 INFO L168 Benchmark]: Boogie Preprocessor took 56.34 ms. Allocated memory is still 119.5 MB. Free memory was 93.2 MB in the beginning and 91.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 02:58:55,417 INFO L168 Benchmark]: RCFGBuilder took 370.36 ms. Allocated memory is still 119.5 MB. Free memory was 91.9 MB in the beginning and 78.5 MB in the end (delta: 13.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-29 02:58:55,418 INFO L168 Benchmark]: CodeCheck took 72130.44 ms. Allocated memory was 119.5 MB in the beginning and 211.8 MB in the end (delta: 92.3 MB). Free memory was 78.2 MB in the beginning and 144.4 MB in the end (delta: -66.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 16.1 GB. [2021-10-29 02:58:55,418 INFO L168 Benchmark]: Witness Printer took 102.55 ms. Allocated memory is still 211.8 MB. Free memory was 144.4 MB in the beginning and 141.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 02:58:55,424 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 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 72.0s, OverallIterations: 13, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 16384 SDtfs, 8662 SDslu, 4096 SDs, 0 SdLazy, 153956 SolverSat, 48642 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1497 GetRequests, 1248 SyntacticMatches, 37 SemanticMatches, 212 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22353 ImplicationChecksByTransitivity, 61.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 15.1s InterpolantComputationTime, 147 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 118 ConstructedInterpolants, 23 QuantifiedInterpolants, 2308 SizeOfPredicates, 44 NumberOfNonLiveVariables, 1034 ConjunctsInSsa, 132 ConjunctsInUnsatCore, 12 InterpolantComputations, 3 PerfectInterpolantSequences, 20/49 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L13] COND FALSE !(!cond) [L27] int i; [L28] long long *a = malloc(sizeof(long long)*N); [L29] long long *b = malloc(sizeof(long long)*N); [L31] a[0] = 2 [L32] b[0] = 1 [L33] i=1 VAL [N=3] [L33] COND TRUE i