./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark29_linear.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1bfac9b-1684-41a5-b664-f6c0863edc4a/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1bfac9b-1684-41a5-b664-f6c0863edc4a/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1bfac9b-1684-41a5-b664-f6c0863edc4a/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1bfac9b-1684-41a5-b664-f6c0863edc4a/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark29_linear.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1bfac9b-1684-41a5-b664-f6c0863edc4a/bin/uautomizer-GMMbpWq8iD/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1bfac9b-1684-41a5-b664-f6c0863edc4a/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8ea6dc0bafa5a28653d9fabe4d322befcb916956980332e0149835c6371af6a1 ..................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 22:55:32,034 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 22:55:32,037 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 22:55:32,075 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 22:55:32,076 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 22:55:32,078 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 22:55:32,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 22:55:32,084 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 22:55:32,086 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 22:55:32,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 22:55:32,090 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 22:55:32,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 22:55:32,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 22:55:32,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 22:55:32,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 22:55:32,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 22:55:32,101 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 22:55:32,103 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 22:55:32,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 22:55:32,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 22:55:32,112 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 22:55:32,114 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 22:55:32,116 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 22:55:32,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 22:55:32,123 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 22:55:32,124 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 22:55:32,124 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 22:55:32,126 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 22:55:32,127 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 22:55:32,129 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 22:55:32,129 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 22:55:32,131 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 22:55:32,132 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 22:55:32,134 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 22:55:32,135 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 22:55:32,136 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 22:55:32,137 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 22:55:32,138 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 22:55:32,138 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 22:55:32,140 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 22:55:32,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 22:55:32,143 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1bfac9b-1684-41a5-b664-f6c0863edc4a/bin/uautomizer-GMMbpWq8iD/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-28 22:55:32,177 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 22:55:32,177 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 22:55:32,178 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 22:55:32,178 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 22:55:32,180 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 22:55:32,180 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 22:55:32,181 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 22:55:32,181 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 22:55:32,181 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 22:55:32,182 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 22:55:32,182 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 22:55:32,182 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 22:55:32,183 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 22:55:32,183 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 22:55:32,183 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 22:55:32,183 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 22:55:32,184 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-28 22:55:32,184 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 22:55:32,184 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 22:55:32,185 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 22:55:32,185 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 22:55:32,185 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 22:55:32,186 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 22:55:32,186 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 22:55:32,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 22:55:32,187 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 22:55:32,187 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 22:55:32,187 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 22:55:32,188 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 22:55:32,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 22:55:32,188 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 22:55:32,188 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 22:55:32,189 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_d1bfac9b-1684-41a5-b664-f6c0863edc4a/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1bfac9b-1684-41a5-b664-f6c0863edc4a/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ea6dc0bafa5a28653d9fabe4d322befcb916956980332e0149835c6371af6a1 [2021-10-28 22:55:32,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 22:55:32,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 22:55:32,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 22:55:32,536 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 22:55:32,537 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 22:55:32,538 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1bfac9b-1684-41a5-b664-f6c0863edc4a/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/loop-zilu/benchmark29_linear.i [2021-10-28 22:55:32,640 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1bfac9b-1684-41a5-b664-f6c0863edc4a/bin/uautomizer-GMMbpWq8iD/data/8cde2a8ee/8a2e65ce8d294b5c8834c37795a70398/FLAG0636985dc [2021-10-28 22:55:33,199 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 22:55:33,199 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1bfac9b-1684-41a5-b664-f6c0863edc4a/sv-benchmarks/c/loop-zilu/benchmark29_linear.i [2021-10-28 22:55:33,207 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1bfac9b-1684-41a5-b664-f6c0863edc4a/bin/uautomizer-GMMbpWq8iD/data/8cde2a8ee/8a2e65ce8d294b5c8834c37795a70398/FLAG0636985dc [2021-10-28 22:55:33,551 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1bfac9b-1684-41a5-b664-f6c0863edc4a/bin/uautomizer-GMMbpWq8iD/data/8cde2a8ee/8a2e65ce8d294b5c8834c37795a70398 [2021-10-28 22:55:33,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 22:55:33,558 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 22:55:33,563 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 22:55:33,564 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 22:55:33,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 22:55:33,570 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:55:33" (1/1) ... [2021-10-28 22:55:33,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7aa2ef26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:55:33, skipping insertion in model container [2021-10-28 22:55:33,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:55:33" (1/1) ... [2021-10-28 22:55:33,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 22:55:33,607 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 22:55:33,823 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_d1bfac9b-1684-41a5-b664-f6c0863edc4a/sv-benchmarks/c/loop-zilu/benchmark29_linear.i[868,881] [2021-10-28 22:55:33,831 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:55:33,842 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 22:55:33,858 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_d1bfac9b-1684-41a5-b664-f6c0863edc4a/sv-benchmarks/c/loop-zilu/benchmark29_linear.i[868,881] [2021-10-28 22:55:33,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:55:33,876 INFO L208 MainTranslator]: Completed translation [2021-10-28 22:55:33,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:55:33 WrapperNode [2021-10-28 22:55:33,877 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 22:55:33,878 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 22:55:33,879 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 22:55:33,879 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 22:55:33,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:55:33" (1/1) ... [2021-10-28 22:55:33,895 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:55:33" (1/1) ... [2021-10-28 22:55:33,914 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 22:55:33,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 22:55:33,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 22:55:33,915 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 22:55:33,926 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:55:33" (1/1) ... [2021-10-28 22:55:33,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:55:33" (1/1) ... [2021-10-28 22:55:33,928 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:55:33" (1/1) ... [2021-10-28 22:55:33,928 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:55:33" (1/1) ... [2021-10-28 22:55:33,932 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:55:33" (1/1) ... [2021-10-28 22:55:33,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:55:33" (1/1) ... [2021-10-28 22:55:33,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:55:33" (1/1) ... [2021-10-28 22:55:33,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 22:55:33,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 22:55:33,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 22:55:33,952 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 22:55:33,953 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:55:33" (1/1) ... [2021-10-28 22:55:33,964 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 22:55:33,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1bfac9b-1684-41a5-b664-f6c0863edc4a/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:55:33,990 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1bfac9b-1684-41a5-b664-f6c0863edc4a/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 22:55:34,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1bfac9b-1684-41a5-b664-f6c0863edc4a/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 22:55:34,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 22:55:34,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 22:55:34,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 22:55:34,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 22:55:34,274 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 22:55:34,275 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-28 22:55:34,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:55:34 BoogieIcfgContainer [2021-10-28 22:55:34,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 22:55:34,280 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 22:55:34,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 22:55:34,284 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 22:55:34,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 10:55:33" (1/3) ... [2021-10-28 22:55:34,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b57abf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:55:34, skipping insertion in model container [2021-10-28 22:55:34,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:55:33" (2/3) ... [2021-10-28 22:55:34,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b57abf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:55:34, skipping insertion in model container [2021-10-28 22:55:34,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:55:34" (3/3) ... [2021-10-28 22:55:34,289 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark29_linear.i [2021-10-28 22:55:34,296 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 22:55:34,296 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-28 22:55:34,359 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 22:55:34,368 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, mAutomataTypeConcurrency=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 [2021-10-28 22:55:34,369 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-28 22:55:34,387 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 15 states have (on average 1.6) internal successors, (24), 19 states have internal predecessors, (24), 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) [2021-10-28 22:55:34,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-28 22:55:34,394 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:55:34,394 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-28 22:55:34,395 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-28 22:55:34,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:55:34,403 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2021-10-28 22:55:34,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:55:34,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737693046] [2021-10-28 22:55:34,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:55:34,417 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:55:34,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:55:34,542 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:55:34,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:55:34,587 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:55:34,590 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 22:55:34,591 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 22:55:34,594 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 22:55:34,596 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 22:55:34,596 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 22:55:34,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 22:55:34,602 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-10-28 22:55:34,613 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 22:55:34,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 10:55:34 BoogieIcfgContainer [2021-10-28 22:55:34,638 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 22:55:34,643 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 22:55:34,643 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 22:55:34,643 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 22:55:34,644 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:55:34" (3/4) ... [2021-10-28 22:55:34,647 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 22:55:34,691 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1bfac9b-1684-41a5-b664-f6c0863edc4a/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 22:55:34,692 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 22:55:34,694 INFO L168 Benchmark]: Toolchain (without parser) took 1135.28 ms. Allocated memory is still 98.6 MB. Free memory was 65.2 MB in the beginning and 49.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. [2021-10-28 22:55:34,695 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 81.8 MB. Free memory was 60.6 MB in the beginning and 60.5 MB in the end (delta: 29.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:55:34,696 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.35 ms. Allocated memory is still 98.6 MB. Free memory was 65.2 MB in the beginning and 75.6 MB in the end (delta: -10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 22:55:34,697 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.87 ms. Allocated memory is still 98.6 MB. Free memory was 75.6 MB in the beginning and 74.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:55:34,698 INFO L168 Benchmark]: Boogie Preprocessor took 35.46 ms. Allocated memory is still 98.6 MB. Free memory was 74.3 MB in the beginning and 73.4 MB in the end (delta: 892.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:55:34,699 INFO L168 Benchmark]: RCFGBuilder took 326.60 ms. Allocated memory is still 98.6 MB. Free memory was 73.2 MB in the beginning and 63.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 22:55:34,699 INFO L168 Benchmark]: TraceAbstraction took 358.87 ms. Allocated memory is still 98.6 MB. Free memory was 63.5 MB in the beginning and 50.9 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 22:55:34,700 INFO L168 Benchmark]: Witness Printer took 49.37 ms. Allocated memory is still 98.6 MB. Free memory was 50.4 MB in the beginning and 49.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:55:34,705 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 81.8 MB. Free memory was 60.6 MB in the beginning and 60.5 MB in the end (delta: 29.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 314.35 ms. Allocated memory is still 98.6 MB. Free memory was 65.2 MB in the beginning and 75.6 MB in the end (delta: -10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.87 ms. Allocated memory is still 98.6 MB. Free memory was 75.6 MB in the beginning and 74.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.46 ms. Allocated memory is still 98.6 MB. Free memory was 74.3 MB in the beginning and 73.4 MB in the end (delta: 892.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 326.60 ms. Allocated memory is still 98.6 MB. Free memory was 73.2 MB in the beginning and 63.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 358.87 ms. Allocated memory is still 98.6 MB. Free memory was 63.5 MB in the beginning and 50.9 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 49.37 ms. Allocated memory is still 98.6 MB. Free memory was 50.4 MB in the beginning and 49.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 24]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int x = __VERIFIER_nondet_int(); [L21] int y = __VERIFIER_nondet_int(); [L22] COND FALSE !(!(x