./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/AllInterval-005.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a679fd3b-1184-4992-9c46-e5f908f71265/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a679fd3b-1184-4992-9c46-e5f908f71265/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a679fd3b-1184-4992-9c46-e5f908f71265/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a679fd3b-1184-4992-9c46-e5f908f71265/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/AllInterval-005.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a679fd3b-1184-4992-9c46-e5f908f71265/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a679fd3b-1184-4992-9c46-e5f908f71265/bin/uautomizer-WNIpwEf4Nt --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cb28031a68e9901575d70de4181d02d22e8fd5c4 .................................................................................................................................................................................................................................................................................................................................................... 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-4e77c04 [2021-10-13 01:05:46,627 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:05:46,630 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:05:46,678 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:05:46,679 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:05:46,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:05:46,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:05:46,688 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:05:46,691 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:05:46,698 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:05:46,699 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:05:46,701 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:05:46,702 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:05:46,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:05:46,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:05:46,714 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:05:46,716 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:05:46,717 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:05:46,719 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:05:46,729 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:05:46,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:05:46,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:05:46,735 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:05:46,736 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:05:46,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:05:46,746 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:05:46,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:05:46,747 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:05:46,747 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:05:46,749 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:05:46,749 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:05:46,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:05:46,751 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:05:46,751 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:05:46,753 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:05:46,753 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:05:46,754 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:05:46,754 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:05:46,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:05:46,756 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:05:46,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:05:46,761 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a679fd3b-1184-4992-9c46-e5f908f71265/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 01:05:46,811 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:05:46,812 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:05:46,812 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:05:46,812 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:05:46,819 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:05:46,820 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:05:46,820 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:05:46,820 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:05:46,820 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 01:05:46,820 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:05:46,821 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 01:05:46,821 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:05:46,821 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 01:05:46,821 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 01:05:46,821 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 01:05:46,822 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 01:05:46,822 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:05:46,822 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:05:46,822 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 01:05:46,822 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:05:46,822 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:05:46,823 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 01:05:46,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 01:05:46,823 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:05:46,823 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 01:05:46,823 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 01:05:46,824 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:05:46,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 01:05:46,824 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 01:05:46,824 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:05:46,824 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_a679fd3b-1184-4992-9c46-e5f908f71265/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a679fd3b-1184-4992-9c46-e5f908f71265/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb28031a68e9901575d70de4181d02d22e8fd5c4 [2021-10-13 01:05:47,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:05:47,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:05:47,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:05:47,125 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:05:47,130 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:05:47,131 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a679fd3b-1184-4992-9c46-e5f908f71265/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/xcsp/AllInterval-005.c [2021-10-13 01:05:47,208 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a679fd3b-1184-4992-9c46-e5f908f71265/bin/uautomizer-WNIpwEf4Nt/data/e7655cfe7/76f8edc55b994865b97286c0ab956761/FLAG7fff0a851 [2021-10-13 01:05:47,686 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:05:47,686 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a679fd3b-1184-4992-9c46-e5f908f71265/sv-benchmarks/c/xcsp/AllInterval-005.c [2021-10-13 01:05:47,702 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a679fd3b-1184-4992-9c46-e5f908f71265/bin/uautomizer-WNIpwEf4Nt/data/e7655cfe7/76f8edc55b994865b97286c0ab956761/FLAG7fff0a851 [2021-10-13 01:05:48,087 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a679fd3b-1184-4992-9c46-e5f908f71265/bin/uautomizer-WNIpwEf4Nt/data/e7655cfe7/76f8edc55b994865b97286c0ab956761 [2021-10-13 01:05:48,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:05:48,091 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:05:48,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:05:48,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:05:48,096 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:05:48,097 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:05:48" (1/1) ... [2021-10-13 01:05:48,098 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10ea6de5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:48, skipping insertion in model container [2021-10-13 01:05:48,098 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:05:48" (1/1) ... [2021-10-13 01:05:48,118 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:05:48,137 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:05:48,295 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_a679fd3b-1184-4992-9c46-e5f908f71265/sv-benchmarks/c/xcsp/AllInterval-005.c[2566,2579] [2021-10-13 01:05:48,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:05:48,307 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:05:48,329 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_a679fd3b-1184-4992-9c46-e5f908f71265/sv-benchmarks/c/xcsp/AllInterval-005.c[2566,2579] [2021-10-13 01:05:48,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:05:48,343 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:05:48,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:48 WrapperNode [2021-10-13 01:05:48,344 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:05:48,345 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:05:48,346 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:05:48,346 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:05:48,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:48" (1/1) ... [2021-10-13 01:05:48,360 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:48" (1/1) ... [2021-10-13 01:05:48,394 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:05:48,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:05:48,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:05:48,395 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:05:48,403 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:48" (1/1) ... [2021-10-13 01:05:48,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:48" (1/1) ... [2021-10-13 01:05:48,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:48" (1/1) ... [2021-10-13 01:05:48,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:48" (1/1) ... [2021-10-13 01:05:48,414 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:48" (1/1) ... [2021-10-13 01:05:48,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:48" (1/1) ... [2021-10-13 01:05:48,421 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:48" (1/1) ... [2021-10-13 01:05:48,425 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:05:48,426 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:05:48,426 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:05:48,426 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:05:48,427 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:48" (1/1) ... [2021-10-13 01:05:48,435 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 01:05:48,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a679fd3b-1184-4992-9c46-e5f908f71265/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:05:48,471 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a679fd3b-1184-4992-9c46-e5f908f71265/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 01:05:48,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a679fd3b-1184-4992-9c46-e5f908f71265/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 01:05:48,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:05:48,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:05:48,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 01:05:48,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 01:05:48,849 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:05:48,849 INFO L299 CfgBuilder]: Removed 80 assume(true) statements. [2021-10-13 01:05:48,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:05:48 BoogieIcfgContainer [2021-10-13 01:05:48,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:05:48,854 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 01:05:48,854 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 01:05:48,857 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 01:05:48,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:05:48" (1/3) ... [2021-10-13 01:05:48,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66b5a75d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:05:48, skipping insertion in model container [2021-10-13 01:05:48,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:48" (2/3) ... [2021-10-13 01:05:48,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66b5a75d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:05:48, skipping insertion in model container [2021-10-13 01:05:48,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:05:48" (3/3) ... [2021-10-13 01:05:48,864 INFO L111 eAbstractionObserver]: Analyzing ICFG AllInterval-005.c [2021-10-13 01:05:48,869 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 01:05:48,871 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 01:05:48,943 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 01:05:48,962 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 01:05:48,962 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 01:05:48,982 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 88 states have (on average 1.4886363636363635) internal successors, (131), 89 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:05:48,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-10-13 01:05:48,993 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:05:48,994 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:05:48,995 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:05:49,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:05:49,000 INFO L82 PathProgramCache]: Analyzing trace with hash 1499740993, now seen corresponding path program 1 times [2021-10-13 01:05:49,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:05:49,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916623081] [2021-10-13 01:05:49,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:05:49,012 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:05:49,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:05:49,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:05:49,197 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:05:49,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916623081] [2021-10-13 01:05:49,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916623081] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:05:49,198 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:05:49,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 01:05:49,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578670548] [2021-10-13 01:05:49,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 01:05:49,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:05:49,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 01:05:49,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 01:05:49,222 INFO L87 Difference]: Start difference. First operand has 90 states, 88 states have (on average 1.4886363636363635) internal successors, (131), 89 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 43.0) internal successors, (86), 2 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:05:49,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:05:49,243 INFO L93 Difference]: Finished difference Result 174 states and 256 transitions. [2021-10-13 01:05:49,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 01:05:49,245 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 43.0) internal successors, (86), 2 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-10-13 01:05:49,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:05:49,254 INFO L225 Difference]: With dead ends: 174 [2021-10-13 01:05:49,254 INFO L226 Difference]: Without dead ends: 87 [2021-10-13 01:05:49,257 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 01:05:49,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-10-13 01:05:49,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-10-13 01:05:49,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 86 states have (on average 1.0465116279069768) internal successors, (90), 86 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:05:49,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 90 transitions. [2021-10-13 01:05:49,292 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 90 transitions. Word has length 86 [2021-10-13 01:05:49,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:05:49,293 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 90 transitions. [2021-10-13 01:05:49,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 43.0) internal successors, (86), 2 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:05:49,294 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 90 transitions. [2021-10-13 01:05:49,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-10-13 01:05:49,297 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:05:49,297 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:05:49,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 01:05:49,298 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:05:49,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:05:49,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1861667587, now seen corresponding path program 1 times [2021-10-13 01:05:49,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:05:49,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860101084] [2021-10-13 01:05:49,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:05:49,300 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:05:49,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:05:49,735 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:05:50,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:05:50,090 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:05:50,090 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 01:05:50,092 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 01:05:50,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 01:05:50,100 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 01:05:50,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 01:05:50 BoogieIcfgContainer [2021-10-13 01:05:50,181 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 01:05:50,182 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:05:50,182 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:05:50,182 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:05:50,182 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:05:48" (3/4) ... [2021-10-13 01:05:50,184 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 01:05:50,244 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a679fd3b-1184-4992-9c46-e5f908f71265/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 01:05:50,245 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:05:50,246 INFO L168 Benchmark]: Toolchain (without parser) took 2155.05 ms. Allocated memory is still 134.2 MB. Free memory was 98.9 MB in the beginning and 101.7 MB in the end (delta: -2.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:05:50,247 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 94.4 MB. Free memory was 70.0 MB in the beginning and 69.9 MB in the end (delta: 26.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:05:50,247 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.20 ms. Allocated memory is still 134.2 MB. Free memory was 98.6 MB in the beginning and 108.5 MB in the end (delta: -9.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 01:05:50,248 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.00 ms. Allocated memory is still 134.2 MB. Free memory was 108.5 MB in the beginning and 106.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:05:50,249 INFO L168 Benchmark]: Boogie Preprocessor took 30.20 ms. Allocated memory is still 134.2 MB. Free memory was 106.0 MB in the beginning and 104.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:05:50,249 INFO L168 Benchmark]: RCFGBuilder took 425.82 ms. Allocated memory is still 134.2 MB. Free memory was 104.4 MB in the beginning and 89.8 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-13 01:05:50,250 INFO L168 Benchmark]: TraceAbstraction took 1327.39 ms. Allocated memory is still 134.2 MB. Free memory was 89.3 MB in the beginning and 108.0 MB in the end (delta: -18.8 MB). Peak memory consumption was 33.8 MB. Max. memory is 16.1 GB. [2021-10-13 01:05:50,250 INFO L168 Benchmark]: Witness Printer took 63.41 ms. Allocated memory is still 134.2 MB. Free memory was 108.0 MB in the beginning and 101.7 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 01:05:50,253 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 94.4 MB. Free memory was 70.0 MB in the beginning and 69.9 MB in the end (delta: 26.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 252.20 ms. Allocated memory is still 134.2 MB. Free memory was 98.6 MB in the beginning and 108.5 MB in the end (delta: -9.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.00 ms. Allocated memory is still 134.2 MB. Free memory was 108.5 MB in the beginning and 106.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.20 ms. Allocated memory is still 134.2 MB. Free memory was 106.0 MB in the beginning and 104.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 425.82 ms. Allocated memory is still 134.2 MB. Free memory was 104.4 MB in the beginning and 89.8 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1327.39 ms. Allocated memory is still 134.2 MB. Free memory was 89.3 MB in the beginning and 108.0 MB in the end (delta: -18.8 MB). Peak memory consumption was 33.8 MB. Max. memory is 16.1 GB. * Witness Printer took 63.41 ms. Allocated memory is still 134.2 MB. Free memory was 108.0 MB in the beginning and 101.7 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 93]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L24] int cond0; [L25] int dummy = 0; [L26] int N; [L27] int var0; [L28] var0 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L31] int var1; [L32] var1 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L35] int var2; [L36] var2 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L39] int var3; [L40] var3 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L43] int var4; [L44] var4 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L47] int var5; [L48] var5 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L51] int var6; [L52] var6 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L55] int var7; [L56] var7 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L59] int var8; [L60] var8 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L63] int myvar0 = 1; [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L80] int var_for_abs; [L81] var_for_abs = var0 - var1 [L82] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L82] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L84] var_for_abs = var1 - var2 [L85] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L85] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L87] var_for_abs = var2 - var3 [L88] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L88] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L90] var_for_abs = var3 - var4 [L91] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L91] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L93] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 90 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1156.6ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 18.8ms, AutomataDifference: 50.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 14.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 90 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 21.3ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 24.7ms SsaConstructionTime, 455.0ms SatisfiabilityAnalysisTime, 81.2ms InterpolantComputationTime, 172 NumberOfCodeBlocks, 172 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 85 ConstructedInterpolants, 0 QuantifiedInterpolants, 85 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-13 01:05:50,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a679fd3b-1184-4992-9c46-e5f908f71265/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...