./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ --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 9c302c0a70f15041d912ede4a343504399632b0722d257e8570893a260b2b8dc --- 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-dbf71c6-m [2022-10-17 11:01:53,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 11:01:53,134 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 11:01:53,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 11:01:53,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 11:01:53,198 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 11:01:53,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 11:01:53,205 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 11:01:53,208 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 11:01:53,213 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 11:01:53,214 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 11:01:53,217 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 11:01:53,217 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 11:01:53,220 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 11:01:53,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 11:01:53,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 11:01:53,226 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 11:01:53,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 11:01:53,229 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 11:01:53,241 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 11:01:53,243 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 11:01:53,244 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 11:01:53,248 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 11:01:53,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 11:01:53,258 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 11:01:53,259 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 11:01:53,259 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 11:01:53,261 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 11:01:53,262 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 11:01:53,263 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 11:01:53,263 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 11:01:53,264 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 11:01:53,266 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 11:01:53,268 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 11:01:53,269 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 11:01:53,269 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 11:01:53,269 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 11:01:53,270 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 11:01:53,270 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 11:01:53,271 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 11:01:53,271 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 11:01:53,272 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-17 11:01:53,314 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 11:01:53,314 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 11:01:53,315 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 11:01:53,315 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 11:01:53,316 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 11:01:53,316 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 11:01:53,317 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 11:01:53,317 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 11:01:53,317 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 11:01:53,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 11:01:53,319 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 11:01:53,319 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 11:01:53,319 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 11:01:53,319 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 11:01:53,320 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 11:01:53,320 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 11:01:53,320 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 11:01:53,320 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 11:01:53,321 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-17 11:01:53,321 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 11:01:53,321 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 11:01:53,321 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 11:01:53,321 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 11:01:53,322 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 11:01:53,322 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 11:01:53,322 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 11:01:53,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:01:53,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 11:01:53,324 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 11:01:53,324 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 11:01:53,325 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 11:01:53,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 11:01:53,325 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 11:01:53,325 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_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c302c0a70f15041d912ede4a343504399632b0722d257e8570893a260b2b8dc [2022-10-17 11:01:53,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 11:01:53,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 11:01:53,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 11:01:53,632 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 11:01:53,633 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 11:01:53,634 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-2.i [2022-10-17 11:01:53,713 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/data/92ec9651a/d9ce1bbf0c3c426ea723878f19752883/FLAG709a6db82 [2022-10-17 11:01:54,387 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 11:01:54,388 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-2.i [2022-10-17 11:01:54,411 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/data/92ec9651a/d9ce1bbf0c3c426ea723878f19752883/FLAG709a6db82 [2022-10-17 11:01:54,520 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/data/92ec9651a/d9ce1bbf0c3c426ea723878f19752883 [2022-10-17 11:01:54,522 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 11:01:54,524 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 11:01:54,526 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 11:01:54,526 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 11:01:54,537 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 11:01:54,538 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:01:54" (1/1) ... [2022-10-17 11:01:54,539 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48c93025 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:54, skipping insertion in model container [2022-10-17 11:01:54,540 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:01:54" (1/1) ... [2022-10-17 11:01:54,549 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 11:01:54,634 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 11:01:55,252 WARN L230 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_5f4b7996-81bb-4d35-94b5-d0b931846fc7/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-2.i[33021,33034] [2022-10-17 11:01:55,524 WARN L230 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_5f4b7996-81bb-4d35-94b5-d0b931846fc7/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-2.i[84583,84596] [2022-10-17 11:01:55,534 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:01:55,543 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 11:01:55,569 WARN L230 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_5f4b7996-81bb-4d35-94b5-d0b931846fc7/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-2.i[33021,33034] [2022-10-17 11:01:55,761 WARN L230 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_5f4b7996-81bb-4d35-94b5-d0b931846fc7/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-2.i[84583,84596] [2022-10-17 11:01:55,773 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:01:55,822 INFO L208 MainTranslator]: Completed translation [2022-10-17 11:01:55,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:55 WrapperNode [2022-10-17 11:01:55,824 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 11:01:55,825 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 11:01:55,825 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 11:01:55,825 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 11:01:55,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:55" (1/1) ... [2022-10-17 11:01:55,922 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:55" (1/1) ... [2022-10-17 11:01:56,060 INFO L138 Inliner]: procedures = 177, calls = 781, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3027 [2022-10-17 11:01:56,061 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 11:01:56,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 11:01:56,062 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 11:01:56,062 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 11:01:56,072 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:55" (1/1) ... [2022-10-17 11:01:56,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:55" (1/1) ... [2022-10-17 11:01:56,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:55" (1/1) ... [2022-10-17 11:01:56,090 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:55" (1/1) ... [2022-10-17 11:01:56,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:55" (1/1) ... [2022-10-17 11:01:56,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:55" (1/1) ... [2022-10-17 11:01:56,226 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:55" (1/1) ... [2022-10-17 11:01:56,239 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:55" (1/1) ... [2022-10-17 11:01:56,251 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 11:01:56,252 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 11:01:56,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 11:01:56,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 11:01:56,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:55" (1/1) ... [2022-10-17 11:01:56,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:01:56,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:01:56,284 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 11:01:56,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 11:01:56,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 11:01:56,331 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 11:01:56,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 11:01:56,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 11:01:56,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-17 11:01:56,336 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-17 11:01:56,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 11:01:56,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 11:01:56,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 11:01:56,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 11:01:56,337 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-10-17 11:01:56,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 11:01:56,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 11:01:56,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 11:01:56,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 11:01:56,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 11:01:56,659 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 11:01:56,661 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 11:01:59,504 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 11:01:59,539 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 11:01:59,539 INFO L300 CfgBuilder]: Removed 63 assume(true) statements. [2022-10-17 11:01:59,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:01:59 BoogieIcfgContainer [2022-10-17 11:01:59,544 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 11:01:59,547 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 11:01:59,547 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 11:01:59,551 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 11:01:59,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 11:01:54" (1/3) ... [2022-10-17 11:01:59,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27543569 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:01:59, skipping insertion in model container [2022-10-17 11:01:59,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:55" (2/3) ... [2022-10-17 11:01:59,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27543569 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:01:59, skipping insertion in model container [2022-10-17 11:01:59,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:01:59" (3/3) ... [2022-10-17 11:01:59,555 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test9-2.i [2022-10-17 11:01:59,575 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 11:01:59,575 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-10-17 11:01:59,678 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 11:01:59,685 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=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@978bb37, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 11:01:59,686 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-10-17 11:01:59,695 INFO L276 IsEmpty]: Start isEmpty. Operand has 1208 states, 694 states have (on average 1.9135446685878963) internal successors, (1328), 1202 states have internal predecessors, (1328), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-10-17 11:01:59,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 11:01:59,702 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:01:59,703 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:01:59,703 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-17 11:01:59,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:01:59,709 INFO L85 PathProgramCache]: Analyzing trace with hash 552713999, now seen corresponding path program 1 times [2022-10-17 11:01:59,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:01:59,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025418233] [2022-10-17 11:01:59,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:01:59,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:01:59,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:01:59,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:01:59,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025418233] [2022-10-17 11:01:59,871 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-10-17 11:01:59,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558186228] [2022-10-17 11:01:59,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:01:59,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 11:01:59,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:01:59,874 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 11:01:59,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-17 11:02:00,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:02:00,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 1 conjunts are in the unsatisfiable core [2022-10-17 11:02:00,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:02:00,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:02:00,053 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 11:02:00,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558186228] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:02:00,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:02:00,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 11:02:00,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116089733] [2022-10-17 11:02:00,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:02:00,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 11:02:00,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:02:00,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 11:02:00,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 11:02:00,104 INFO L87 Difference]: Start difference. First operand has 1208 states, 694 states have (on average 1.9135446685878963) internal successors, (1328), 1202 states have internal predecessors, (1328), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-10-17 11:02:00,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:02:00,334 INFO L93 Difference]: Finished difference Result 2414 states and 5166 transitions. [2022-10-17 11:02:00,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 11:02:00,338 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2022-10-17 11:02:00,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:02:00,385 INFO L225 Difference]: With dead ends: 2414 [2022-10-17 11:02:00,386 INFO L226 Difference]: Without dead ends: 1175 [2022-10-17 11:02:00,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 11:02:00,406 INFO L413 NwaCegarLoop]: 2265 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2265 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 11:02:00,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2265 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 11:02:00,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2022-10-17 11:02:00,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 1175. [2022-10-17 11:02:00,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1175 states, 662 states have (on average 1.8353474320241692) internal successors, (1215), 1169 states have internal predecessors, (1215), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-10-17 11:02:00,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 2221 transitions. [2022-10-17 11:02:00,976 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 2221 transitions. Word has length 7 [2022-10-17 11:02:00,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:02:00,976 INFO L495 AbstractCegarLoop]: Abstraction has 1175 states and 2221 transitions. [2022-10-17 11:02:00,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-10-17 11:02:00,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 2221 transitions. [2022-10-17 11:02:00,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 11:02:00,977 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:02:00,977 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:02:01,015 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-17 11:02:01,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 11:02:01,199 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-17 11:02:01,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:02:01,200 INFO L85 PathProgramCache]: Analyzing trace with hash 552715921, now seen corresponding path program 1 times [2022-10-17 11:02:01,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:02:01,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077029944] [2022-10-17 11:02:01,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:02:01,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:02:01,230 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-17 11:02:01,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1698482837] [2022-10-17 11:02:01,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:02:01,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 11:02:01,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:02:01,232 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 11:02:01,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-17 11:02:01,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:02:01,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-17 11:02:01,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:02:01,583 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-17 11:02:01,600 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-17 11:02:01,646 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-10-17 11:02:01,647 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-10-17 11:02:01,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 11:02:01,704 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-17 11:02:01,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:02:01,713 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 11:02:01,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:02:01,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077029944] [2022-10-17 11:02:01,720 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-17 11:02:01,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698482837] [2022-10-17 11:02:01,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698482837] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:02:01,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:02:01,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 11:02:01,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387242213] [2022-10-17 11:02:01,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:02:01,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 11:02:01,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:02:01,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 11:02:01,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 11:02:01,725 INFO L87 Difference]: Start difference. First operand 1175 states and 2221 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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) [2022-10-17 11:02:05,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:02:05,186 INFO L93 Difference]: Finished difference Result 2292 states and 4372 transitions. [2022-10-17 11:02:05,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 11:02:05,187 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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 7 [2022-10-17 11:02:05,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:02:05,220 INFO L225 Difference]: With dead ends: 2292 [2022-10-17 11:02:05,220 INFO L226 Difference]: Without dead ends: 2290 [2022-10-17 11:02:05,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-17 11:02:05,223 INFO L413 NwaCegarLoop]: 2674 mSDtfsCounter, 1185 mSDsluCounter, 5960 mSDsCounter, 0 mSdLazyCounter, 1753 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1685 SdHoareTripleChecker+Valid, 8634 SdHoareTripleChecker+Invalid, 1768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-10-17 11:02:05,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1685 Valid, 8634 Invalid, 1768 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 1753 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-10-17 11:02:05,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2290 states. [2022-10-17 11:02:05,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2290 to 1181. [2022-10-17 11:02:05,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1181 states, 668 states have (on average 1.8293413173652695) internal successors, (1222), 1175 states have internal predecessors, (1222), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-10-17 11:02:05,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 2228 transitions. [2022-10-17 11:02:05,673 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 2228 transitions. Word has length 7 [2022-10-17 11:02:05,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:02:05,673 INFO L495 AbstractCegarLoop]: Abstraction has 1181 states and 2228 transitions. [2022-10-17 11:02:05,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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) [2022-10-17 11:02:05,674 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 2228 transitions. [2022-10-17 11:02:05,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-17 11:02:05,676 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:02:05,676 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:02:05,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-17 11:02:05,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 11:02:05,905 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-17 11:02:05,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:02:05,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1931275711, now seen corresponding path program 1 times [2022-10-17 11:02:05,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:02:05,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202819802] [2022-10-17 11:02:05,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:02:05,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:02:05,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:02:06,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:02:06,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:02:06,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202819802] [2022-10-17 11:02:06,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202819802] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:02:06,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:02:06,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 11:02:06,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605737975] [2022-10-17 11:02:06,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:02:06,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 11:02:06,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:02:06,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 11:02:06,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 11:02:06,501 INFO L87 Difference]: Start difference. First operand 1181 states and 2228 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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) [2022-10-17 11:02:07,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:02:07,653 INFO L93 Difference]: Finished difference Result 3322 states and 6406 transitions. [2022-10-17 11:02:07,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 11:02:07,654 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 44 [2022-10-17 11:02:07,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:02:07,678 INFO L225 Difference]: With dead ends: 3322 [2022-10-17 11:02:07,678 INFO L226 Difference]: Without dead ends: 2249 [2022-10-17 11:02:07,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 11:02:07,686 INFO L413 NwaCegarLoop]: 2695 mSDtfsCounter, 1089 mSDsluCounter, 4343 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1589 SdHoareTripleChecker+Valid, 7038 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-17 11:02:07,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1589 Valid, 7038 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-10-17 11:02:07,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2249 states. [2022-10-17 11:02:08,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2249 to 1181. [2022-10-17 11:02:08,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1181 states, 668 states have (on average 1.8278443113772456) internal successors, (1221), 1175 states have internal predecessors, (1221), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-10-17 11:02:08,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 2227 transitions. [2022-10-17 11:02:08,252 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 2227 transitions. Word has length 44 [2022-10-17 11:02:08,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:02:08,254 INFO L495 AbstractCegarLoop]: Abstraction has 1181 states and 2227 transitions. [2022-10-17 11:02:08,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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) [2022-10-17 11:02:08,255 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 2227 transitions. [2022-10-17 11:02:08,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-17 11:02:08,260 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:02:08,260 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:02:08,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 11:02:08,261 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-17 11:02:08,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:02:08,261 INFO L85 PathProgramCache]: Analyzing trace with hash 305892652, now seen corresponding path program 1 times [2022-10-17 11:02:08,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:02:08,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566258084] [2022-10-17 11:02:08,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:02:08,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:02:08,408 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-17 11:02:08,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [876389350] [2022-10-17 11:02:08,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:02:08,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 11:02:08,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:02:08,421 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 11:02:08,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-17 11:02:09,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:02:09,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 1538 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 11:02:09,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:02:09,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:02:09,035 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 11:02:09,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:02:09,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566258084] [2022-10-17 11:02:09,036 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-17 11:02:09,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876389350] [2022-10-17 11:02:09,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876389350] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:02:09,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:02:09,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 11:02:09,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786439548] [2022-10-17 11:02:09,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:02:09,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 11:02:09,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:02:09,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 11:02:09,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:02:09,040 INFO L87 Difference]: Start difference. First operand 1181 states and 2227 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2022-10-17 11:02:09,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:02:09,170 INFO L93 Difference]: Finished difference Result 2375 states and 4477 transitions. [2022-10-17 11:02:09,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 11:02:09,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 57 [2022-10-17 11:02:09,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:02:09,186 INFO L225 Difference]: With dead ends: 2375 [2022-10-17 11:02:09,187 INFO L226 Difference]: Without dead ends: 1202 [2022-10-17 11:02:09,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:02:09,198 INFO L413 NwaCegarLoop]: 2201 mSDtfsCounter, 9 mSDsluCounter, 2186 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 4387 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 11:02:09,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 4387 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 11:02:09,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1202 states. [2022-10-17 11:02:09,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1202 to 1201. [2022-10-17 11:02:09,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1201 states, 688 states have (on average 1.8037790697674418) internal successors, (1241), 1195 states have internal predecessors, (1241), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-10-17 11:02:09,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1201 states to 1201 states and 2247 transitions. [2022-10-17 11:02:09,519 INFO L78 Accepts]: Start accepts. Automaton has 1201 states and 2247 transitions. Word has length 57 [2022-10-17 11:02:09,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:02:09,520 INFO L495 AbstractCegarLoop]: Abstraction has 1201 states and 2247 transitions. [2022-10-17 11:02:09,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2022-10-17 11:02:09,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1201 states and 2247 transitions. [2022-10-17 11:02:09,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-17 11:02:09,528 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:02:09,529 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:02:09,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-17 11:02:09,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 11:02:09,753 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-17 11:02:09,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:02:09,754 INFO L85 PathProgramCache]: Analyzing trace with hash 815365742, now seen corresponding path program 1 times [2022-10-17 11:02:09,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:02:09,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258170538] [2022-10-17 11:02:09,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:02:09,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:02:09,901 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-17 11:02:09,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [440301363] [2022-10-17 11:02:09,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:02:09,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 11:02:09,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:02:09,902 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 11:02:09,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-17 11:02:10,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:02:10,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 1540 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 11:02:10,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:02:10,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:02:10,643 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 11:02:10,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:02:10,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258170538] [2022-10-17 11:02:10,644 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-17 11:02:10,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440301363] [2022-10-17 11:02:10,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440301363] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:02:10,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:02:10,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 11:02:10,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731345144] [2022-10-17 11:02:10,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:02:10,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 11:02:10,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:02:10,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 11:02:10,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 11:02:10,646 INFO L87 Difference]: Start difference. First operand 1201 states and 2247 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2022-10-17 11:02:10,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:02:10,798 INFO L93 Difference]: Finished difference Result 2384 states and 4476 transitions. [2022-10-17 11:02:10,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 11:02:10,799 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 57 [2022-10-17 11:02:10,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:02:10,811 INFO L225 Difference]: With dead ends: 2384 [2022-10-17 11:02:10,811 INFO L226 Difference]: Without dead ends: 1191 [2022-10-17 11:02:10,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 11:02:10,818 INFO L413 NwaCegarLoop]: 2203 mSDtfsCounter, 1196 mSDsluCounter, 2711 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1699 SdHoareTripleChecker+Valid, 4914 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 11:02:10,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1699 Valid, 4914 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 11:02:10,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1191 states. [2022-10-17 11:02:11,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1191 to 1187. [2022-10-17 11:02:11,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1187 states, 674 states have (on average 1.8100890207715135) internal successors, (1220), 1181 states have internal predecessors, (1220), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2022-10-17 11:02:11,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1187 states to 1187 states and 2226 transitions. [2022-10-17 11:02:11,093 INFO L78 Accepts]: Start accepts. Automaton has 1187 states and 2226 transitions. Word has length 57 [2022-10-17 11:02:11,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:02:11,094 INFO L495 AbstractCegarLoop]: Abstraction has 1187 states and 2226 transitions. [2022-10-17 11:02:11,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2022-10-17 11:02:11,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1187 states and 2226 transitions. [2022-10-17 11:02:11,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-17 11:02:11,096 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:02:11,097 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:02:11,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-17 11:02:11,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 11:02:11,313 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-17 11:02:11,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:02:11,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1455665376, now seen corresponding path program 1 times [2022-10-17 11:02:11,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:02:11,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772992991] [2022-10-17 11:02:11,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:02:11,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:02:11,457 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-17 11:02:11,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [102613225] [2022-10-17 11:02:11,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:02:11,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 11:02:11,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:02:11,461 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 11:02:11,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-17 11:02:12,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:02:12,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 1526 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 11:02:12,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:02:12,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:02:12,423 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 11:02:12,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:02:12,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772992991] [2022-10-17 11:02:12,424 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-17 11:02:12,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102613225] [2022-10-17 11:02:12,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102613225] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:02:12,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:02:12,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 11:02:12,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126502165] [2022-10-17 11:02:12,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:02:12,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 11:02:12,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:02:12,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 11:02:12,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:02:12,427 INFO L87 Difference]: Start difference. First operand 1187 states and 2226 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2022-10-17 11:02:12,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:02:12,639 INFO L93 Difference]: Finished difference Result 3460 states and 6557 transitions. [2022-10-17 11:02:12,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 11:02:12,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 57 [2022-10-17 11:02:12,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:02:12,665 INFO L225 Difference]: With dead ends: 3460 [2022-10-17 11:02:12,666 INFO L226 Difference]: Without dead ends: 2281 [2022-10-17 11:02:12,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:02:12,674 INFO L413 NwaCegarLoop]: 2762 mSDtfsCounter, 1078 mSDsluCounter, 2192 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1580 SdHoareTripleChecker+Valid, 4954 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 11:02:12,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1580 Valid, 4954 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 11:02:12,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2281 states. [2022-10-17 11:02:13,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2281 to 2277. [2022-10-17 11:02:13,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2277 states, 1264 states have (on average 1.8441455696202531) internal successors, (2331), 2271 states have internal predecessors, (2331), 1003 states have call successors, (1003), 2 states have call predecessors, (1003), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2022-10-17 11:02:13,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2277 states to 2277 states and 4337 transitions. [2022-10-17 11:02:13,167 INFO L78 Accepts]: Start accepts. Automaton has 2277 states and 4337 transitions. Word has length 57 [2022-10-17 11:02:13,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:02:13,167 INFO L495 AbstractCegarLoop]: Abstraction has 2277 states and 4337 transitions. [2022-10-17 11:02:13,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2022-10-17 11:02:13,168 INFO L276 IsEmpty]: Start isEmpty. Operand 2277 states and 4337 transitions. [2022-10-17 11:02:13,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-17 11:02:13,169 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:02:13,169 INFO L195 NwaCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:02:13,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-17 11:02:13,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-10-17 11:02:13,397 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-17 11:02:13,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:02:13,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1888458446, now seen corresponding path program 1 times [2022-10-17 11:02:13,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:02:13,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930497665] [2022-10-17 11:02:13,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:02:13,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:02:13,458 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-17 11:02:13,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1018757598] [2022-10-17 11:02:13,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:02:13,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 11:02:13,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:02:13,459 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 11:02:13,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f4b7996-81bb-4d35-94b5-d0b931846fc7/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-17 11:02:14,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:02:14,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 158 conjunts are in the unsatisfiable core [2022-10-17 11:02:14,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:02:14,051 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-17 11:02:14,059 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-17 11:02:14,101 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-10-17 11:02:14,102 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-10-17 11:02:14,153 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-17 11:02:14,187 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-17 11:02:14,720 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-17 11:02:14,763 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-17 11:02:14,786 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-17 11:02:14,799 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-17 11:02:14,813 INFO L356 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2022-10-17 11:02:14,814 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 30 [2022-10-17 11:02:14,874 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3