./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/float-benchs/filter1.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1875fa5-a961-4d80-9357-9d40582b013e/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1875fa5-a961-4d80-9357-9d40582b013e/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1875fa5-a961-4d80-9357-9d40582b013e/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1875fa5-a961-4d80-9357-9d40582b013e/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/filter1.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1875fa5-a961-4d80-9357-9d40582b013e/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1875fa5-a961-4d80-9357-9d40582b013e/bin/uautomizer-ZsLfNo2U6R --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 27e2c506f8c4790ab21ed41c19bd1ea2839907b43d1ff7cacbbc276ad919ab4e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 16:44:26,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:44:26,078 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:44:26,105 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:44:26,109 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:44:26,112 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:44:26,115 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:44:26,119 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:44:26,121 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:44:26,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:44:26,128 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:44:26,131 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:44:26,131 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:44:26,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:44:26,137 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:44:26,140 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:44:26,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:44:26,143 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:44:26,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:44:26,149 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:44:26,152 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:44:26,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:44:26,156 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:44:26,157 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:44:26,165 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:44:26,167 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:44:26,168 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:44:26,169 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:44:26,170 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:44:26,172 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:44:26,173 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:44:26,174 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:44:26,176 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:44:26,177 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:44:26,178 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:44:26,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:44:26,179 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:44:26,180 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:44:26,180 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:44:26,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:44:26,182 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:44:26,183 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1875fa5-a961-4d80-9357-9d40582b013e/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 16:44:26,221 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:44:26,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:44:26,222 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:44:26,222 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:44:26,223 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:44:26,224 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:44:26,224 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:44:26,225 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:44:26,225 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:44:26,225 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:44:26,226 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 16:44:26,227 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 16:44:26,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 16:44:26,227 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 16:44:26,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:44:26,228 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 16:44:26,228 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:44:26,228 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 16:44:26,228 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 16:44:26,229 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 16:44:26,229 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 16:44:26,229 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:44:26,229 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 16:44:26,230 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:44:26,230 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:44:26,230 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:44:26,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:44:26,231 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:44:26,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:44:26,231 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 16:44:26,232 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 16:44:26,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 16:44:26,232 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:44:26,233 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 16:44:26,233 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:44:26,233 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:44:26,233 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_d1875fa5-a961-4d80-9357-9d40582b013e/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1875fa5-a961-4d80-9357-9d40582b013e/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27e2c506f8c4790ab21ed41c19bd1ea2839907b43d1ff7cacbbc276ad919ab4e [2022-11-25 16:44:26,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:44:26,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:44:26,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:44:26,531 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:44:26,532 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:44:26,533 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1875fa5-a961-4d80-9357-9d40582b013e/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/float-benchs/filter1.c.v+lhb-reducer.c [2022-11-25 16:44:29,530 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:44:29,762 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:44:29,762 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1875fa5-a961-4d80-9357-9d40582b013e/sv-benchmarks/c/float-benchs/filter1.c.v+lhb-reducer.c [2022-11-25 16:44:29,776 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1875fa5-a961-4d80-9357-9d40582b013e/bin/uautomizer-ZsLfNo2U6R/data/7727635b4/54f7e1042310468d9e91dd90e32e2c6d/FLAG90e16d43b [2022-11-25 16:44:29,790 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1875fa5-a961-4d80-9357-9d40582b013e/bin/uautomizer-ZsLfNo2U6R/data/7727635b4/54f7e1042310468d9e91dd90e32e2c6d [2022-11-25 16:44:29,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:44:29,794 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:44:29,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:44:29,797 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:44:29,801 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:44:29,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:44:29" (1/1) ... [2022-11-25 16:44:29,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62983ce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:29, skipping insertion in model container [2022-11-25 16:44:29,803 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:44:29" (1/1) ... [2022-11-25 16:44:29,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:44:29,832 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:44:29,982 WARN L237 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_d1875fa5-a961-4d80-9357-9d40582b013e/sv-benchmarks/c/float-benchs/filter1.c.v+lhb-reducer.c[1355,1368] [2022-11-25 16:44:29,990 WARN L237 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_d1875fa5-a961-4d80-9357-9d40582b013e/sv-benchmarks/c/float-benchs/filter1.c.v+lhb-reducer.c[2394,2407] [2022-11-25 16:44:29,995 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:44:30,006 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 16:44:30,021 WARN L237 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_d1875fa5-a961-4d80-9357-9d40582b013e/sv-benchmarks/c/float-benchs/filter1.c.v+lhb-reducer.c[1355,1368] [2022-11-25 16:44:30,026 WARN L237 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_d1875fa5-a961-4d80-9357-9d40582b013e/sv-benchmarks/c/float-benchs/filter1.c.v+lhb-reducer.c[2394,2407] [2022-11-25 16:44:30,030 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:44:30,044 INFO L208 MainTranslator]: Completed translation [2022-11-25 16:44:30,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:30 WrapperNode [2022-11-25 16:44:30,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:44:30,046 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 16:44:30,046 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 16:44:30,046 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 16:44:30,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:30" (1/1) ... [2022-11-25 16:44:30,065 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:30" (1/1) ... [2022-11-25 16:44:30,087 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 124 [2022-11-25 16:44:30,088 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 16:44:30,088 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 16:44:30,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 16:44:30,089 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 16:44:30,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:30" (1/1) ... [2022-11-25 16:44:30,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:30" (1/1) ... [2022-11-25 16:44:30,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:30" (1/1) ... [2022-11-25 16:44:30,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:30" (1/1) ... [2022-11-25 16:44:30,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:30" (1/1) ... [2022-11-25 16:44:30,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:30" (1/1) ... [2022-11-25 16:44:30,106 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:30" (1/1) ... [2022-11-25 16:44:30,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:30" (1/1) ... [2022-11-25 16:44:30,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 16:44:30,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 16:44:30,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 16:44:30,110 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 16:44:30,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:30" (1/1) ... [2022-11-25 16:44:30,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:44:30,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1875fa5-a961-4d80-9357-9d40582b013e/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:44:30,159 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1875fa5-a961-4d80-9357-9d40582b013e/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 16:44:30,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1875fa5-a961-4d80-9357-9d40582b013e/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 16:44:30,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 16:44:30,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 16:44:30,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 16:44:30,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 16:44:30,274 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 16:44:30,276 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 16:44:30,431 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 16:44:30,437 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 16:44:30,437 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 16:44:30,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:44:30 BoogieIcfgContainer [2022-11-25 16:44:30,440 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 16:44:30,442 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 16:44:30,443 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 16:44:30,446 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 16:44:30,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:44:29" (1/3) ... [2022-11-25 16:44:30,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48123e16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:44:30, skipping insertion in model container [2022-11-25 16:44:30,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:44:30" (2/3) ... [2022-11-25 16:44:30,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48123e16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:44:30, skipping insertion in model container [2022-11-25 16:44:30,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:44:30" (3/3) ... [2022-11-25 16:44:30,450 INFO L112 eAbstractionObserver]: Analyzing ICFG filter1.c.v+lhb-reducer.c [2022-11-25 16:44:30,499 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 16:44:30,499 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 16:44:30,609 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 16:44:30,616 INFO L357 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=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1f5b77b7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 16:44:30,617 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 16:44:30,639 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 30 states have (on average 1.6) internal successors, (48), 32 states have internal predecessors, (48), 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) [2022-11-25 16:44:30,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 16:44:30,646 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:44:30,647 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:44:30,648 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 16:44:30,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:44:30,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1721285932, now seen corresponding path program 1 times [2022-11-25 16:44:30,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:44:30,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050297932] [2022-11-25 16:44:30,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:44:30,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:44:30,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:44:30,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:44:30,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:44:30,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050297932] [2022-11-25 16:44:30,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050297932] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:44:30,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:44:30,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 16:44:30,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688906255] [2022-11-25 16:44:30,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:44:30,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:44:30,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:44:31,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:44:31,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:44:31,018 INFO L87 Difference]: Start difference. First operand has 33 states, 30 states have (on average 1.6) internal successors, (48), 32 states have internal predecessors, (48), 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 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2022-11-25 16:44:31,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:44:31,060 INFO L93 Difference]: Finished difference Result 44 states and 57 transitions. [2022-11-25 16:44:31,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:44:31,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2022-11-25 16:44:31,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:44:31,071 INFO L225 Difference]: With dead ends: 44 [2022-11-25 16:44:31,071 INFO L226 Difference]: Without dead ends: 33 [2022-11-25 16:44:31,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:44:31,094 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 10 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:44:31,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 63 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:44:31,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-25 16:44:31,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-25 16:44:31,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 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) [2022-11-25 16:44:31,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 41 transitions. [2022-11-25 16:44:31,147 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 41 transitions. Word has length 14 [2022-11-25 16:44:31,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:44:31,149 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 41 transitions. [2022-11-25 16:44:31,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2022-11-25 16:44:31,150 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2022-11-25 16:44:31,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-25 16:44:31,153 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:44:31,153 INFO L195 NwaCegarLoop]: trace histogram [2, 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] [2022-11-25 16:44:31,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 16:44:31,155 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 16:44:31,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:44:31,159 INFO L85 PathProgramCache]: Analyzing trace with hash -170491608, now seen corresponding path program 1 times [2022-11-25 16:44:31,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:44:31,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824500221] [2022-11-25 16:44:31,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:44:31,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:44:31,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:44:31,309 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:44:31,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:44:31,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824500221] [2022-11-25 16:44:31,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824500221] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:44:31,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:44:31,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:44:31,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226811928] [2022-11-25 16:44:31,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:44:31,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:44:31,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:44:31,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:44:31,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:44:31,314 INFO L87 Difference]: Start difference. First operand 33 states and 41 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2022-11-25 16:44:31,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:44:31,331 INFO L93 Difference]: Finished difference Result 51 states and 64 transitions. [2022-11-25 16:44:31,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:44:31,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 27 [2022-11-25 16:44:31,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:44:31,333 INFO L225 Difference]: With dead ends: 51 [2022-11-25 16:44:31,333 INFO L226 Difference]: Without dead ends: 32 [2022-11-25 16:44:31,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:44:31,335 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:44:31,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:44:31,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-25 16:44:31,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-11-25 16:44:31,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 31 states have internal predecessors, (38), 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) [2022-11-25 16:44:31,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2022-11-25 16:44:31,342 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 27 [2022-11-25 16:44:31,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:44:31,343 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2022-11-25 16:44:31,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2022-11-25 16:44:31,343 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2022-11-25 16:44:31,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-25 16:44:31,344 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:44:31,344 INFO L195 NwaCegarLoop]: trace histogram [2, 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] [2022-11-25 16:44:31,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 16:44:31,345 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 16:44:31,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:44:31,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1025378333, now seen corresponding path program 1 times [2022-11-25 16:44:31,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:44:31,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926700450] [2022-11-25 16:44:31,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:44:31,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:44:31,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:44:31,443 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:44:31,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:44:31,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926700450] [2022-11-25 16:44:31,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926700450] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:44:31,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422600185] [2022-11-25 16:44:31,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:44:31,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:44:31,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1875fa5-a961-4d80-9357-9d40582b013e/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:44:31,451 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1875fa5-a961-4d80-9357-9d40582b013e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:44:31,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1875fa5-a961-4d80-9357-9d40582b013e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 16:44:31,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:44:31,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 16:44:31,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:44:31,654 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:44:31,654 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:44:31,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422600185] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:44:31,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 16:44:31,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-11-25 16:44:31,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637295127] [2022-11-25 16:44:31,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:44:31,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 16:44:31,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:44:31,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 16:44:31,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:44:31,658 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2022-11-25 16:44:31,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:44:31,679 INFO L93 Difference]: Finished difference Result 32 states and 38 transitions. [2022-11-25 16:44:31,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 16:44:31,680 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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 27 [2022-11-25 16:44:31,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:44:31,681 INFO L225 Difference]: With dead ends: 32 [2022-11-25 16:44:31,681 INFO L226 Difference]: Without dead ends: 31 [2022-11-25 16:44:31,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:44:31,683 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 10 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:44:31,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 46 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:44:31,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-25 16:44:31,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-11-25 16:44:31,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 30 states have internal predecessors, (37), 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) [2022-11-25 16:44:31,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2022-11-25 16:44:31,694 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 27 [2022-11-25 16:44:31,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:44:31,696 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2022-11-25 16:44:31,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2022-11-25 16:44:31,696 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2022-11-25 16:44:31,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-25 16:44:31,698 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:44:31,699 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:44:31,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1875fa5-a961-4d80-9357-9d40582b013e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 16:44:31,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1875fa5-a961-4d80-9357-9d40582b013e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:44:31,911 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 16:44:31,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:44:31,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1721957183, now seen corresponding path program 1 times [2022-11-25 16:44:31,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:44:31,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996618027] [2022-11-25 16:44:31,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:44:31,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:44:31,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:44:32,026 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:44:32,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:44:32,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996618027] [2022-11-25 16:44:32,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996618027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:44:32,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:44:32,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 16:44:32,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512783127] [2022-11-25 16:44:32,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:44:32,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:44:32,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:44:32,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:44:32,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:44:32,030 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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) [2022-11-25 16:44:32,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:44:32,064 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2022-11-25 16:44:32,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:44:32,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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 28 [2022-11-25 16:44:32,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:44:32,066 INFO L225 Difference]: With dead ends: 31 [2022-11-25 16:44:32,066 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 16:44:32,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:44:32,069 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 18 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:44:32,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 31 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:44:32,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 16:44:32,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 16:44:32,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-11-25 16:44:32,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 16:44:32,075 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2022-11-25 16:44:32,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:44:32,076 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 16:44:32,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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) [2022-11-25 16:44:32,076 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 16:44:32,076 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 16:44:32,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 16:44:32,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 16:44:32,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 16:44:32,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 16:44:32,142 INFO L899 garLoopResultBuilder]: For program point L93(lines 93 121) no Hoare annotation was computed. [2022-11-25 16:44:32,142 INFO L899 garLoopResultBuilder]: For program point L56(lines 56 156) no Hoare annotation was computed. [2022-11-25 16:44:32,143 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 132) no Hoare annotation was computed. [2022-11-25 16:44:32,144 INFO L895 garLoopResultBuilder]: At program point L143(lines 77 144) the Hoare annotation is: (or (and (<= |ULTIMATE.start_main_~main__i~0#1| 1000000) (<= 1 |ULTIMATE.start_main_~main__i~0#1|)) (= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 0)) [2022-11-25 16:44:32,144 INFO L899 garLoopResultBuilder]: For program point L77(lines 77 144) no Hoare annotation was computed. [2022-11-25 16:44:32,144 INFO L895 garLoopResultBuilder]: At program point L168(lines 45 169) the Hoare annotation is: (= |ULTIMATE.start_main_~main__i~0#1| 0) [2022-11-25 16:44:32,144 INFO L899 garLoopResultBuilder]: For program point L102(lines 102 113) no Hoare annotation was computed. [2022-11-25 16:44:32,144 INFO L895 garLoopResultBuilder]: At program point L131(lines 85 132) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~main__i~0#1| 1000000) (<= 1 |ULTIMATE.start_main_~main__i~0#1|)) [2022-11-25 16:44:32,145 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 185) no Hoare annotation was computed. [2022-11-25 16:44:32,145 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-25 16:44:32,145 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 70) no Hoare annotation was computed. [2022-11-25 16:44:32,146 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 16:44:32,146 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-25 16:44:32,146 INFO L902 garLoopResultBuilder]: At program point L148(lines 75 149) the Hoare annotation is: true [2022-11-25 16:44:32,146 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 169) no Hoare annotation was computed. [2022-11-25 16:44:32,146 INFO L899 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2022-11-25 16:44:32,147 INFO L899 garLoopResultBuilder]: For program point L70-1(line 70) no Hoare annotation was computed. [2022-11-25 16:44:32,147 INFO L902 garLoopResultBuilder]: At program point L194(lines 17 196) the Hoare annotation is: true [2022-11-25 16:44:32,147 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 70) no Hoare annotation was computed. [2022-11-25 16:44:32,149 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 16:44:32,151 INFO L899 garLoopResultBuilder]: For program point L91(lines 91 126) no Hoare annotation was computed. [2022-11-25 16:44:32,152 INFO L895 garLoopResultBuilder]: At program point L120(lines 93 121) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~main__i~0#1| 1000000) (<= 1 |ULTIMATE.start_main_~main__i~0#1|)) [2022-11-25 16:44:32,152 INFO L895 garLoopResultBuilder]: At program point L112(lines 62 156) the Hoare annotation is: (or (= |ULTIMATE.start_main_~main__i~0#1| 0) (and (<= |ULTIMATE.start_main_~main__i~0#1| 1000000) (<= 1 |ULTIMATE.start_main_~main__i~0#1|))) [2022-11-25 16:44:32,153 INFO L895 garLoopResultBuilder]: At program point L174(lines 39 175) the Hoare annotation is: (= |ULTIMATE.start_main_~main__i~0#1| 0) [2022-11-25 16:44:32,154 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 149) no Hoare annotation was computed. [2022-11-25 16:44:32,154 INFO L899 garLoopResultBuilder]: For program point L71(lines 71 155) no Hoare annotation was computed. [2022-11-25 16:44:32,155 INFO L899 garLoopResultBuilder]: For program point L30(lines 30 190) no Hoare annotation was computed. [2022-11-25 16:44:32,155 INFO L895 garLoopResultBuilder]: At program point L125(lines 91 126) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~main__i~0#1| 1000000) (<= 1 |ULTIMATE.start_main_~main__i~0#1|)) [2022-11-25 16:44:32,157 INFO L899 garLoopResultBuilder]: For program point L26(lines 26 195) no Hoare annotation was computed. [2022-11-25 16:44:32,162 INFO L899 garLoopResultBuilder]: For program point L47(lines 47 164) no Hoare annotation was computed. [2022-11-25 16:44:32,162 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 175) no Hoare annotation was computed. [2022-11-25 16:44:32,162 INFO L899 garLoopResultBuilder]: For program point L35(lines 35 180) no Hoare annotation was computed. [2022-11-25 16:44:32,162 INFO L895 garLoopResultBuilder]: At program point L163(lines 47 164) the Hoare annotation is: (= |ULTIMATE.start_main_~main__i~0#1| 0) [2022-11-25 16:44:32,167 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-25 16:44:32,169 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 16:44:32,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 04:44:32 BoogieIcfgContainer [2022-11-25 16:44:32,194 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 16:44:32,194 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 16:44:32,194 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 16:44:32,195 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 16:44:32,195 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:44:30" (3/4) ... [2022-11-25 16:44:32,198 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 16:44:32,212 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-25 16:44:32,212 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-25 16:44:32,213 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 16:44:32,213 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 16:44:32,254 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1875fa5-a961-4d80-9357-9d40582b013e/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 16:44:32,254 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 16:44:32,255 INFO L158 Benchmark]: Toolchain (without parser) took 2460.54ms. Allocated memory is still 144.7MB. Free memory was 97.0MB in the beginning and 63.6MB in the end (delta: 33.4MB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. [2022-11-25 16:44:32,255 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 111.1MB. Free memory is still 65.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:44:32,255 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.41ms. Allocated memory is still 144.7MB. Free memory was 96.6MB in the beginning and 85.2MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 16:44:32,256 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.13ms. Allocated memory is still 144.7MB. Free memory was 85.2MB in the beginning and 83.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:44:32,256 INFO L158 Benchmark]: Boogie Preprocessor took 20.42ms. Allocated memory is still 144.7MB. Free memory was 83.6MB in the beginning and 82.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 16:44:32,256 INFO L158 Benchmark]: RCFGBuilder took 330.32ms. Allocated memory is still 144.7MB. Free memory was 82.3MB in the beginning and 69.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 16:44:32,257 INFO L158 Benchmark]: TraceAbstraction took 1751.41ms. Allocated memory is still 144.7MB. Free memory was 69.4MB in the beginning and 66.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2022-11-25 16:44:32,257 INFO L158 Benchmark]: Witness Printer took 60.07ms. Allocated memory is still 144.7MB. Free memory was 66.6MB in the beginning and 63.6MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 16:44:32,259 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 111.1MB. Free memory is still 65.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 248.41ms. Allocated memory is still 144.7MB. Free memory was 96.6MB in the beginning and 85.2MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.13ms. Allocated memory is still 144.7MB. Free memory was 85.2MB in the beginning and 83.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.42ms. Allocated memory is still 144.7MB. Free memory was 83.6MB in the beginning and 82.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 330.32ms. Allocated memory is still 144.7MB. Free memory was 82.3MB in the beginning and 69.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1751.41ms. Allocated memory is still 144.7MB. Free memory was 69.4MB in the beginning and 66.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. * Witness Printer took 60.07ms. Allocated memory is still 144.7MB. Free memory was 66.6MB in the beginning and 63.6MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * 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 - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 210 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 70 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28 IncrementalHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 140 mSDtfsCounter, 28 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 20 NumberOfFragments, 54 HoareAnnotationTreeSize, 10 FomulaSimplifications, 28 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 123 NumberOfCodeBlocks, 123 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 118 ConstructedInterpolants, 0 QuantifiedInterpolants, 268 SizeOfPredicates, 0 NumberOfNonLiveVariables, 114 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 7/9 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: main__i == 0 - InvariantResult [Line: 85]: Loop Invariant Derived loop invariant: main__i <= 1000000 && 1 <= main__i - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: main__i == 0 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: main__i == 0 || (main__i <= 1000000 && 1 <= main__i) - InvariantResult [Line: 91]: Loop Invariant Derived loop invariant: main__i <= 1000000 && 1 <= main__i - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: main__i == 0 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 93]: Loop Invariant Derived loop invariant: main__i <= 1000000 && 1 <= main__i - InvariantResult [Line: 77]: Loop Invariant Derived loop invariant: (main__i <= 1000000 && 1 <= main__i) || main____CPAchecker_TMP_0 == 0 RESULT: Ultimate proved your program to be correct! [2022-11-25 16:44:32,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1875fa5-a961-4d80-9357-9d40582b013e/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE