./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/eqn2f.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_66a5b939-b393-472f-975f-4da99b764c50/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a5b939-b393-472f-975f-4da99b764c50/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_66a5b939-b393-472f-975f-4da99b764c50/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a5b939-b393-472f-975f-4da99b764c50/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/eqn2f.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a5b939-b393-472f-975f-4da99b764c50/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_66a5b939-b393-472f-975f-4da99b764c50/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 9492838383a14835fe4416045232ed048098976ee70d4c4f9afc54e7ded61319 ................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 03:31:02,376 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 03:31:02,380 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 03:31:02,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 03:31:02,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 03:31:02,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 03:31:02,426 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 03:31:02,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 03:31:02,432 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 03:31:02,434 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 03:31:02,435 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 03:31:02,437 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 03:31:02,438 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 03:31:02,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 03:31:02,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 03:31:02,444 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 03:31:02,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 03:31:02,447 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 03:31:02,450 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 03:31:02,453 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 03:31:02,455 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 03:31:02,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 03:31:02,468 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 03:31:02,469 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 03:31:02,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 03:31:02,483 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 03:31:02,483 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 03:31:02,485 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 03:31:02,486 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 03:31:02,488 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 03:31:02,489 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 03:31:02,490 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 03:31:02,492 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 03:31:02,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 03:31:02,496 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 03:31:02,496 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 03:31:02,497 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 03:31:02,497 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 03:31:02,498 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 03:31:02,501 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 03:31:02,502 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 03:31:02,503 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a5b939-b393-472f-975f-4da99b764c50/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-29 03:31:02,532 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 03:31:02,533 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 03:31:02,534 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 03:31:02,534 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 03:31:02,535 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 03:31:02,535 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 03:31:02,536 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 03:31:02,536 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 03:31:02,536 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 03:31:02,536 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 03:31:02,536 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 03:31:02,537 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 03:31:02,537 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 03:31:02,537 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 03:31:02,537 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 03:31:02,537 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 03:31:02,538 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 03:31:02,538 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 03:31:02,538 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 03:31:02,538 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 03:31:02,539 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 03:31:02,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:31:02,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 03:31:02,539 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 03:31:02,540 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 03:31:02,540 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 03:31:02,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 03:31:02,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 03:31:02,540 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_66a5b939-b393-472f-975f-4da99b764c50/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a5b939-b393-472f-975f-4da99b764c50/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9492838383a14835fe4416045232ed048098976ee70d4c4f9afc54e7ded61319 [2021-10-29 03:31:02,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 03:31:02,877 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 03:31:02,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 03:31:02,883 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 03:31:02,884 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 03:31:02,887 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a5b939-b393-472f-975f-4da99b764c50/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/array-fpi/eqn2f.c [2021-10-29 03:31:02,972 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a5b939-b393-472f-975f-4da99b764c50/bin/ukojak-Rh5K9KB4LI/data/daafd841c/9dd6decb2c20494191932129a8e37418/FLAG4b5bf6e9a [2021-10-29 03:31:03,464 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 03:31:03,465 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a5b939-b393-472f-975f-4da99b764c50/sv-benchmarks/c/array-fpi/eqn2f.c [2021-10-29 03:31:03,472 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a5b939-b393-472f-975f-4da99b764c50/bin/ukojak-Rh5K9KB4LI/data/daafd841c/9dd6decb2c20494191932129a8e37418/FLAG4b5bf6e9a [2021-10-29 03:31:03,798 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a5b939-b393-472f-975f-4da99b764c50/bin/ukojak-Rh5K9KB4LI/data/daafd841c/9dd6decb2c20494191932129a8e37418 [2021-10-29 03:31:03,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 03:31:03,802 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 03:31:03,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 03:31:03,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 03:31:03,809 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 03:31:03,810 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:31:03" (1/1) ... [2021-10-29 03:31:03,811 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3790a225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:31:03, skipping insertion in model container [2021-10-29 03:31:03,811 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:31:03" (1/1) ... [2021-10-29 03:31:03,819 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 03:31:03,835 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 03:31:04,012 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_66a5b939-b393-472f-975f-4da99b764c50/sv-benchmarks/c/array-fpi/eqn2f.c[588,601] [2021-10-29 03:31:04,043 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:31:04,065 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 03:31:04,084 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_66a5b939-b393-472f-975f-4da99b764c50/sv-benchmarks/c/array-fpi/eqn2f.c[588,601] [2021-10-29 03:31:04,111 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:31:04,129 INFO L208 MainTranslator]: Completed translation [2021-10-29 03:31:04,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:31:04 WrapperNode [2021-10-29 03:31:04,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 03:31:04,132 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 03:31:04,133 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 03:31:04,135 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 03:31:04,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:31:04" (1/1) ... [2021-10-29 03:31:04,165 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:31:04" (1/1) ... [2021-10-29 03:31:04,195 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 03:31:04,196 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 03:31:04,196 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 03:31:04,196 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 03:31:04,205 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:31:04" (1/1) ... [2021-10-29 03:31:04,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:31:04" (1/1) ... [2021-10-29 03:31:04,210 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:31:04" (1/1) ... [2021-10-29 03:31:04,211 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:31:04" (1/1) ... [2021-10-29 03:31:04,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:31:04" (1/1) ... [2021-10-29 03:31:04,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:31:04" (1/1) ... [2021-10-29 03:31:04,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:31:04" (1/1) ... [2021-10-29 03:31:04,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 03:31:04,250 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 03:31:04,250 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 03:31:04,251 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 03:31:04,253 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:31:04" (1/1) ... [2021-10-29 03:31:04,262 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:31:04,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a5b939-b393-472f-975f-4da99b764c50/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 03:31:04,295 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a5b939-b393-472f-975f-4da99b764c50/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 03:31:04,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a5b939-b393-472f-975f-4da99b764c50/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 03:31:04,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 03:31:04,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 03:31:04,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 03:31:04,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-29 03:31:04,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 03:31:04,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 03:31:04,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 03:31:04,717 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 03:31:04,717 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-29 03:31:04,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:31:04 BoogieIcfgContainer [2021-10-29 03:31:04,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 03:31:04,721 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 03:31:04,721 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 03:31:04,732 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 03:31:04,733 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:31:04" (1/1) ... [2021-10-29 03:31:04,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 03:31:04,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:31:04,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2021-10-29 03:31:04,779 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2021-10-29 03:31:04,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 03:31:04,781 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:31:04,782 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:31:04,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:31:04,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-29 03:31:04,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:31:05,046 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-10-29 03:31:05,047 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 03:31:05,193 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 03:31:05,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:31:05,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 15 states and 27 transitions. [2021-10-29 03:31:05,292 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 27 transitions. [2021-10-29 03:31:05,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 03:31:05,293 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:31:05,294 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:31:05,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:31:05,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 03:31:05,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:31:05,458 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 03:31:05,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:31:05,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 17 states and 36 transitions. [2021-10-29 03:31:05,711 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 36 transitions. [2021-10-29 03:31:05,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 03:31:05,714 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:31:05,714 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:31:05,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:31:05,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 03:31:05,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:31:05,861 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 03:31:06,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:31:06,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 20 states and 48 transitions. [2021-10-29 03:31:06,257 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 48 transitions. [2021-10-29 03:31:06,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 03:31:06,258 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:31:06,258 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:31:06,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:31:06,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-29 03:31:06,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:31:06,334 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-10-29 03:31:06,335 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 03:31:06,355 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 03:31:06,436 INFO L354 Elim1Store]: treesize reduction 74, result has 26.0 percent of original size [2021-10-29 03:31:06,437 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 03:31:06,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 03:31:06,744 INFO L354 Elim1Store]: treesize reduction 204, result has 13.2 percent of original size [2021-10-29 03:31:06,745 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 03:31:07,251 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 03:31:08,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:31:08,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 18 states and 35 transitions. [2021-10-29 03:31:08,425 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 35 transitions. [2021-10-29 03:31:08,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 03:31:08,426 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:31:08,427 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:31:08,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:31:08,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 03:31:08,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:31:08,569 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 03:31:09,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:31:09,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 22 states and 43 transitions. [2021-10-29 03:31:09,032 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 43 transitions. [2021-10-29 03:31:09,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 03:31:09,032 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:31:09,032 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:31:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:31:09,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 03:31:09,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:31:09,234 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 03:31:10,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:31:10,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 25 states and 52 transitions. [2021-10-29 03:31:10,379 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 52 transitions. [2021-10-29 03:31:10,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 03:31:10,380 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:31:10,380 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:31:10,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:31:10,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-29 03:31:10,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 03:31:10,510 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-10-29 03:31:10,511 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 03:31:10,526 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 03:31:10,579 INFO L354 Elim1Store]: treesize reduction 74, result has 26.0 percent of original size [2021-10-29 03:31:10,580 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 03:31:10,797 INFO L354 Elim1Store]: treesize reduction 200, result has 28.3 percent of original size [2021-10-29 03:31:10,797 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 03:31:12,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 03:31:12,865 INFO L354 Elim1Store]: treesize reduction 152, result has 0.7 percent of original size [2021-10-29 03:31:12,865 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 148 treesize of output 134 [2021-10-29 03:31:14,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 03:31:14,692 INFO L354 Elim1Store]: treesize reduction 962, result has 8.9 percent of original size [2021-10-29 03:31:14,693 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 186 treesize of output 181 [2021-10-29 03:31:37,998 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 03:31:41,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:31:41,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 23 states and 37 transitions. [2021-10-29 03:31:41,033 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 37 transitions. [2021-10-29 03:31:41,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 03:31:41,034 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:31:41,034 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:31:41,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:31:41,080 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 03:31:41,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:31:41,128 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 8 iterations. [2021-10-29 03:31:41,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 03:31:41 ImpRootNode [2021-10-29 03:31:41,190 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 03:31:41,190 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 03:31:41,191 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 03:31:41,191 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 03:31:41,201 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:31:04" (3/4) ... [2021-10-29 03:31:41,203 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 03:31:41,300 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a5b939-b393-472f-975f-4da99b764c50/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 03:31:41,301 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 03:31:41,303 INFO L168 Benchmark]: Toolchain (without parser) took 37499.93 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 58.0 MB in the beginning and 72.7 MB in the end (delta: -14.6 MB). Peak memory consumption was 25.8 MB. Max. memory is 16.1 GB. [2021-10-29 03:31:41,303 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 90.2 MB. Free memory is still 43.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:31:41,318 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.60 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 57.8 MB in the beginning and 84.3 MB in the end (delta: -26.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 03:31:41,318 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.08 ms. Allocated memory is still 109.1 MB. Free memory was 84.3 MB in the beginning and 82.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:31:41,319 INFO L168 Benchmark]: Boogie Preprocessor took 53.05 ms. Allocated memory is still 109.1 MB. Free memory was 82.7 MB in the beginning and 81.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:31:41,320 INFO L168 Benchmark]: RCFGBuilder took 470.34 ms. Allocated memory is still 109.1 MB. Free memory was 81.5 MB in the beginning and 68.1 MB in the end (delta: 13.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 03:31:41,322 INFO L168 Benchmark]: CodeCheck took 36468.81 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 67.6 MB in the beginning and 74.8 MB in the end (delta: -7.1 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. [2021-10-29 03:31:41,322 INFO L168 Benchmark]: Witness Printer took 110.86 ms. Allocated memory is still 132.1 MB. Free memory was 74.8 MB in the beginning and 72.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:31:41,328 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: 36.3s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 512 SDtfs, 264 SDslu, 128 SDs, 0 SdLazy, 4734 SolverSat, 1494 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 728 GetRequests, 612 SyntacticMatches, 14 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4974 ImplicationChecksByTransitivity, 7.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 29.1s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 56 ConstructedInterpolants, 10 QuantifiedInterpolants, 1313 SizeOfPredicates, 26 NumberOfNonLiveVariables, 558 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 6/16 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] = 8 [L32] b[0] = 1 [L34] i=1 VAL [N=2] [L34] COND TRUE i