./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-invgen/nested9.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-invgen/nested9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN --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 f3ca1fd1ad8fdbcd9efe7b99bc6e3715231417d253ce4ee9bba3d5969472333a --- 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-6b4ec56 [2022-11-20 10:30:24,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:30:24,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:30:24,182 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:30:24,183 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:30:24,184 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:30:24,185 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:30:24,187 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:30:24,190 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:30:24,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:30:24,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:30:24,201 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:30:24,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:30:24,206 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:30:24,208 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:30:24,217 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:30:24,219 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:30:24,220 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:30:24,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:30:24,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:30:24,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:30:24,237 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:30:24,239 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:30:24,240 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:30:24,251 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:30:24,251 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:30:24,252 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:30:24,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:30:24,255 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:30:24,256 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:30:24,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:30:24,257 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:30:24,259 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:30:24,262 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:30:24,263 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:30:24,263 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:30:24,264 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:30:24,265 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:30:24,265 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:30:24,267 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:30:24,268 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:30:24,269 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 10:30:24,311 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:30:24,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:30:24,312 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:30:24,312 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:30:24,313 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:30:24,314 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:30:24,314 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:30:24,315 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:30:24,315 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:30:24,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:30:24,316 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:30:24,317 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:30:24,317 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:30:24,317 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:30:24,317 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:30:24,317 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:30:24,318 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:30:24,318 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:30:24,318 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 10:30:24,318 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:30:24,319 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:30:24,319 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:30:24,319 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:30:24,319 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:30:24,320 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:30:24,320 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:30:24,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:30:24,320 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:30:24,321 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:30:24,321 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:30:24,321 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:30:24,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:30:24,322 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:30:24,322 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:30:24,322 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:30:24,323 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_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f3ca1fd1ad8fdbcd9efe7b99bc6e3715231417d253ce4ee9bba3d5969472333a [2022-11-20 10:30:24,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:30:24,650 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:30:24,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:30:24,655 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:30:24,656 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:30:24,657 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/loop-invgen/nested9.i [2022-11-20 10:30:27,928 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:30:28,104 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:30:28,104 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/sv-benchmarks/c/loop-invgen/nested9.i [2022-11-20 10:30:28,111 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/data/155811c1e/0066cd80f399421b8aed79e2773afda9/FLAG9ceb21eb9 [2022-11-20 10:30:28,125 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/data/155811c1e/0066cd80f399421b8aed79e2773afda9 [2022-11-20 10:30:28,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:30:28,130 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:30:28,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:30:28,132 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:30:28,135 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:30:28,136 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:30:28" (1/1) ... [2022-11-20 10:30:28,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66260af7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:28, skipping insertion in model container [2022-11-20 10:30:28,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:30:28" (1/1) ... [2022-11-20 10:30:28,145 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:30:28,159 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:30:28,329 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/sv-benchmarks/c/loop-invgen/nested9.i[893,906] [2022-11-20 10:30:28,344 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:30:28,354 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:30:28,367 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/sv-benchmarks/c/loop-invgen/nested9.i[893,906] [2022-11-20 10:30:28,373 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:30:28,387 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:30:28,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:28 WrapperNode [2022-11-20 10:30:28,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:30:28,389 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:30:28,390 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:30:28,390 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:30:28,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:28" (1/1) ... [2022-11-20 10:30:28,404 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:28" (1/1) ... [2022-11-20 10:30:28,422 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 88 [2022-11-20 10:30:28,422 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:30:28,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:30:28,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:30:28,423 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:30:28,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:28" (1/1) ... [2022-11-20 10:30:28,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:28" (1/1) ... [2022-11-20 10:30:28,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:28" (1/1) ... [2022-11-20 10:30:28,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:28" (1/1) ... [2022-11-20 10:30:28,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:28" (1/1) ... [2022-11-20 10:30:28,440 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:28" (1/1) ... [2022-11-20 10:30:28,441 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:28" (1/1) ... [2022-11-20 10:30:28,442 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:28" (1/1) ... [2022-11-20 10:30:28,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:30:28,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:30:28,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:30:28,445 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:30:28,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:28" (1/1) ... [2022-11-20 10:30:28,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:30:28,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:28,476 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:30:28,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:30:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:30:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:30:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:30:28,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:30:28,596 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:30:28,600 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:30:28,908 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:30:28,916 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:30:28,916 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-20 10:30:28,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:30:28 BoogieIcfgContainer [2022-11-20 10:30:28,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:30:28,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:30:28,926 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:30:28,929 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:30:28,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:30:28" (1/3) ... [2022-11-20 10:30:28,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ac3fdd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:30:28, skipping insertion in model container [2022-11-20 10:30:28,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:28" (2/3) ... [2022-11-20 10:30:28,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ac3fdd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:30:28, skipping insertion in model container [2022-11-20 10:30:28,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:30:28" (3/3) ... [2022-11-20 10:30:28,933 INFO L112 eAbstractionObserver]: Analyzing ICFG nested9.i [2022-11-20 10:30:28,952 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:30:28,952 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-20 10:30:29,007 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:30:29,014 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@62263967, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:30:29,014 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-11-20 10:30:29,018 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 37 states have (on average 1.7837837837837838) internal successors, (66), 55 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:29,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 10:30:29,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:29,024 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-20 10:30:29,024 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-20 10:30:29,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:29,030 INFO L85 PathProgramCache]: Analyzing trace with hash 889571337, now seen corresponding path program 1 times [2022-11-20 10:30:29,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:29,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132208215] [2022-11-20 10:30:29,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:29,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:29,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:29,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:29,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:29,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132208215] [2022-11-20 10:30:29,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132208215] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:29,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:29,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:30:29,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574392088] [2022-11-20 10:30:29,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:29,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:30:29,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:29,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:30:29,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:30:29,291 INFO L87 Difference]: Start difference. First operand has 56 states, 37 states have (on average 1.7837837837837838) internal successors, (66), 55 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:29,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:29,399 INFO L93 Difference]: Finished difference Result 99 states and 115 transitions. [2022-11-20 10:30:29,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:30:29,402 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-11-20 10:30:29,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:29,411 INFO L225 Difference]: With dead ends: 99 [2022-11-20 10:30:29,411 INFO L226 Difference]: Without dead ends: 49 [2022-11-20 10:30:29,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:30:29,418 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 54 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:29,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 55 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:30:29,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-20 10:30:29,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-11-20 10:30:29,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 33 states have (on average 1.5454545454545454) internal successors, (51), 48 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:29,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 51 transitions. [2022-11-20 10:30:29,462 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 51 transitions. Word has length 6 [2022-11-20 10:30:29,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:29,462 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 51 transitions. [2022-11-20 10:30:29,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:29,463 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2022-11-20 10:30:29,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 10:30:29,464 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:29,464 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:29,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:30:29,464 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-20 10:30:29,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:29,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1806907722, now seen corresponding path program 1 times [2022-11-20 10:30:29,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:29,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190663788] [2022-11-20 10:30:29,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:29,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:29,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:29,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:29,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:29,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190663788] [2022-11-20 10:30:29,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190663788] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:29,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:29,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:30:29,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073550870] [2022-11-20 10:30:29,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:29,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:30:29,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:29,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:30:29,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:30:29,550 INFO L87 Difference]: Start difference. First operand 49 states and 51 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2022-11-20 10:30:29,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:29,592 INFO L93 Difference]: Finished difference Result 49 states and 51 transitions. [2022-11-20 10:30:29,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:30:29,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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 [2022-11-20 10:30:29,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:29,594 INFO L225 Difference]: With dead ends: 49 [2022-11-20 10:30:29,594 INFO L226 Difference]: Without dead ends: 47 [2022-11-20 10:30:29,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:30:29,596 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 43 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:29,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 44 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:30:29,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-20 10:30:29,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-11-20 10:30:29,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 33 states have (on average 1.4848484848484849) internal successors, (49), 46 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:29,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 49 transitions. [2022-11-20 10:30:29,604 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 49 transitions. Word has length 7 [2022-11-20 10:30:29,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:29,605 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 49 transitions. [2022-11-20 10:30:29,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2022-11-20 10:30:29,605 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2022-11-20 10:30:29,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 10:30:29,606 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:29,606 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:29,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:30:29,607 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-20 10:30:29,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:29,607 INFO L85 PathProgramCache]: Analyzing trace with hash 179564587, now seen corresponding path program 1 times [2022-11-20 10:30:29,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:29,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408266153] [2022-11-20 10:30:29,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:29,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:29,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:29,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:29,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:29,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408266153] [2022-11-20 10:30:29,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408266153] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:29,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:29,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:30:29,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038434086] [2022-11-20 10:30:29,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:29,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:30:29,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:29,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:30:29,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:30:29,677 INFO L87 Difference]: Start difference. First operand 47 states and 49 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:29,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:29,718 INFO L93 Difference]: Finished difference Result 47 states and 49 transitions. [2022-11-20 10:30:29,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:30:29,719 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2022-11-20 10:30:29,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:29,720 INFO L225 Difference]: With dead ends: 47 [2022-11-20 10:30:29,721 INFO L226 Difference]: Without dead ends: 46 [2022-11-20 10:30:29,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:30:29,723 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 85 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:29,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 48 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:30:29,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-20 10:30:29,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-20 10:30:29,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 45 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:29,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 48 transitions. [2022-11-20 10:30:29,733 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 48 transitions. Word has length 8 [2022-11-20 10:30:29,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:29,734 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 48 transitions. [2022-11-20 10:30:29,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:29,734 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 48 transitions. [2022-11-20 10:30:29,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 10:30:29,735 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:29,735 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:29,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:30:29,736 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-20 10:30:29,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:29,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1271534956, now seen corresponding path program 1 times [2022-11-20 10:30:29,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:29,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526551236] [2022-11-20 10:30:29,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:29,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:29,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:29,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:29,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:29,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526551236] [2022-11-20 10:30:29,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526551236] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:29,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:29,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:30:29,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849883382] [2022-11-20 10:30:29,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:29,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:30:29,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:29,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:30:29,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:30:29,835 INFO L87 Difference]: Start difference. First operand 46 states and 48 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:29,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:29,902 INFO L93 Difference]: Finished difference Result 46 states and 48 transitions. [2022-11-20 10:30:29,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:30:29,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2022-11-20 10:30:29,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:29,904 INFO L225 Difference]: With dead ends: 46 [2022-11-20 10:30:29,905 INFO L226 Difference]: Without dead ends: 45 [2022-11-20 10:30:29,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:30:29,909 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 82 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:29,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 48 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:30:29,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-20 10:30:29,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-20 10:30:29,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 44 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:29,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 47 transitions. [2022-11-20 10:30:29,927 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 47 transitions. Word has length 9 [2022-11-20 10:30:29,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:29,930 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 47 transitions. [2022-11-20 10:30:29,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:29,931 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2022-11-20 10:30:29,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-20 10:30:29,931 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:29,932 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:29,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 10:30:29,932 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-20 10:30:29,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:29,933 INFO L85 PathProgramCache]: Analyzing trace with hash -2067476878, now seen corresponding path program 1 times [2022-11-20 10:30:29,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:29,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066105509] [2022-11-20 10:30:29,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:29,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:29,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:30,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:30,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:30,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066105509] [2022-11-20 10:30:30,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066105509] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:30,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:30,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:30:30,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107304834] [2022-11-20 10:30:30,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:30,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:30:30,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:30,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:30:30,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:30:30,039 INFO L87 Difference]: Start difference. First operand 45 states and 47 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:30,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:30,102 INFO L93 Difference]: Finished difference Result 79 states and 83 transitions. [2022-11-20 10:30:30,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:30:30,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2022-11-20 10:30:30,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:30,104 INFO L225 Difference]: With dead ends: 79 [2022-11-20 10:30:30,105 INFO L226 Difference]: Without dead ends: 75 [2022-11-20 10:30:30,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:30:30,106 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 30 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:30,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 61 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:30:30,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-20 10:30:30,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 64. [2022-11-20 10:30:30,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 52 states have (on average 1.4230769230769231) internal successors, (74), 63 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:30,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 74 transitions. [2022-11-20 10:30:30,120 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 74 transitions. Word has length 13 [2022-11-20 10:30:30,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:30,121 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 74 transitions. [2022-11-20 10:30:30,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:30,121 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 74 transitions. [2022-11-20 10:30:30,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-20 10:30:30,122 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:30,122 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:30,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 10:30:30,123 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-20 10:30:30,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:30,124 INFO L85 PathProgramCache]: Analyzing trace with hash 918465884, now seen corresponding path program 1 times [2022-11-20 10:30:30,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:30,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863157071] [2022-11-20 10:30:30,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:30,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:30,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:30,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:30,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:30,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863157071] [2022-11-20 10:30:30,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863157071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:30,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:30,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:30:30,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016817816] [2022-11-20 10:30:30,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:30,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:30:30,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:30,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:30:30,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:30:30,267 INFO L87 Difference]: Start difference. First operand 64 states and 74 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:30,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:30,362 INFO L93 Difference]: Finished difference Result 75 states and 79 transitions. [2022-11-20 10:30:30,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:30:30,362 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 19 [2022-11-20 10:30:30,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:30,364 INFO L225 Difference]: With dead ends: 75 [2022-11-20 10:30:30,364 INFO L226 Difference]: Without dead ends: 73 [2022-11-20 10:30:30,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:30:30,366 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 24 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:30,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 88 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:30:30,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-20 10:30:30,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 67. [2022-11-20 10:30:30,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 55 states have (on average 1.4) internal successors, (77), 66 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:30,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 77 transitions. [2022-11-20 10:30:30,379 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 77 transitions. Word has length 19 [2022-11-20 10:30:30,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:30,379 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 77 transitions. [2022-11-20 10:30:30,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:30,380 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 77 transitions. [2022-11-20 10:30:30,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-20 10:30:30,380 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:30,381 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:30,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 10:30:30,381 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-20 10:30:30,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:30,382 INFO L85 PathProgramCache]: Analyzing trace with hash 918466654, now seen corresponding path program 1 times [2022-11-20 10:30:30,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:30,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78454728] [2022-11-20 10:30:30,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:30,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:30,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:30,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:30,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78454728] [2022-11-20 10:30:30,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78454728] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:30,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:30,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:30:30,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155338766] [2022-11-20 10:30:30,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:30,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:30:30,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:30,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:30:30,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:30:30,583 INFO L87 Difference]: Start difference. First operand 67 states and 77 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:30,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:30,675 INFO L93 Difference]: Finished difference Result 98 states and 104 transitions. [2022-11-20 10:30:30,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:30:30,676 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 19 [2022-11-20 10:30:30,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:30,677 INFO L225 Difference]: With dead ends: 98 [2022-11-20 10:30:30,678 INFO L226 Difference]: Without dead ends: 96 [2022-11-20 10:30:30,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:30:30,679 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 63 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:30,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 74 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:30:30,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-11-20 10:30:30,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 70. [2022-11-20 10:30:30,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 58 states have (on average 1.396551724137931) internal successors, (81), 69 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:30,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 81 transitions. [2022-11-20 10:30:30,703 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 81 transitions. Word has length 19 [2022-11-20 10:30:30,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:30,704 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 81 transitions. [2022-11-20 10:30:30,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:30,705 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 81 transitions. [2022-11-20 10:30:30,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-20 10:30:30,705 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:30,706 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] [2022-11-20 10:30:30,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 10:30:30,706 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-20 10:30:30,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:30,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1592305790, now seen corresponding path program 1 times [2022-11-20 10:30:30,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:30,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664766608] [2022-11-20 10:30:30,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:30,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:30,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:30,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:30,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:30,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664766608] [2022-11-20 10:30:30,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664766608] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:30,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:30,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:30:30,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546677771] [2022-11-20 10:30:30,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:30,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:30:30,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:30,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:30:30,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:30:30,804 INFO L87 Difference]: Start difference. First operand 70 states and 81 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:30,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:30,911 INFO L93 Difference]: Finished difference Result 76 states and 81 transitions. [2022-11-20 10:30:30,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:30:30,912 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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 20 [2022-11-20 10:30:30,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:30,913 INFO L225 Difference]: With dead ends: 76 [2022-11-20 10:30:30,913 INFO L226 Difference]: Without dead ends: 75 [2022-11-20 10:30:30,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:30:30,915 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 42 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:30,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 119 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:30:30,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-20 10:30:30,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 70. [2022-11-20 10:30:30,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 58 states have (on average 1.3793103448275863) internal successors, (80), 69 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:30,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 80 transitions. [2022-11-20 10:30:30,926 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 80 transitions. Word has length 20 [2022-11-20 10:30:30,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:30,927 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 80 transitions. [2022-11-20 10:30:30,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:30,927 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 80 transitions. [2022-11-20 10:30:30,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-20 10:30:30,928 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:30,928 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] [2022-11-20 10:30:30,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 10:30:30,928 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-20 10:30:30,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:30,929 INFO L85 PathProgramCache]: Analyzing trace with hash -2116839108, now seen corresponding path program 1 times [2022-11-20 10:30:30,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:30,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897176433] [2022-11-20 10:30:30,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:30,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:30,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:31,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:31,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:31,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897176433] [2022-11-20 10:30:31,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897176433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:31,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:31,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:30:31,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54912594] [2022-11-20 10:30:31,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:31,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:30:31,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:31,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:30:31,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:30:31,014 INFO L87 Difference]: Start difference. First operand 70 states and 80 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:31,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:31,061 INFO L93 Difference]: Finished difference Result 110 states and 123 transitions. [2022-11-20 10:30:31,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:30:31,062 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 21 [2022-11-20 10:30:31,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:31,063 INFO L225 Difference]: With dead ends: 110 [2022-11-20 10:30:31,063 INFO L226 Difference]: Without dead ends: 54 [2022-11-20 10:30:31,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:30:31,071 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 9 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:31,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 67 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:30:31,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-20 10:30:31,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-11-20 10:30:31,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 42 states have (on average 1.3333333333333333) internal successors, (56), 53 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:31,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 56 transitions. [2022-11-20 10:30:31,095 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 56 transitions. Word has length 21 [2022-11-20 10:30:31,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:31,096 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 56 transitions. [2022-11-20 10:30:31,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:31,096 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 56 transitions. [2022-11-20 10:30:31,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-20 10:30:31,097 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:31,097 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:31,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 10:30:31,097 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-20 10:30:31,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:31,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1219361556, now seen corresponding path program 1 times [2022-11-20 10:30:31,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:31,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964159690] [2022-11-20 10:30:31,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:31,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:31,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:31,204 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:31,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:31,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964159690] [2022-11-20 10:30:31,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964159690] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:30:31,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696245753] [2022-11-20 10:30:31,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:31,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:30:31,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:31,209 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:30:31,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 10:30:31,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:31,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:30:31,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:30:31,368 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:31,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:30:31,415 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:31,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696245753] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:30:31,416 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:30:31,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2022-11-20 10:30:31,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173299605] [2022-11-20 10:30:31,416 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:30:31,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 10:30:31,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:31,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 10:30:31,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:30:31,418 INFO L87 Difference]: Start difference. First operand 54 states and 56 transitions. Second operand has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 10 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) [2022-11-20 10:30:31,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:31,576 INFO L93 Difference]: Finished difference Result 86 states and 94 transitions. [2022-11-20 10:30:31,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 10:30:31,576 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 10 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 22 [2022-11-20 10:30:31,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:31,577 INFO L225 Difference]: With dead ends: 86 [2022-11-20 10:30:31,577 INFO L226 Difference]: Without dead ends: 83 [2022-11-20 10:30:31,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-11-20 10:30:31,579 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 97 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:31,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 139 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:30:31,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-11-20 10:30:31,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 71. [2022-11-20 10:30:31,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 61 states have (on average 1.360655737704918) internal successors, (83), 70 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:31,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 83 transitions. [2022-11-20 10:30:31,588 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 83 transitions. Word has length 22 [2022-11-20 10:30:31,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:31,588 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 83 transitions. [2022-11-20 10:30:31,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 10 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) [2022-11-20 10:30:31,589 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 83 transitions. [2022-11-20 10:30:31,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-20 10:30:31,589 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:31,590 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:31,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 10:30:31,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:30:31,796 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-20 10:30:31,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:31,796 INFO L85 PathProgramCache]: Analyzing trace with hash 854497502, now seen corresponding path program 1 times [2022-11-20 10:30:31,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:31,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819604220] [2022-11-20 10:30:31,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:31,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:31,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:31,870 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:31,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:31,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819604220] [2022-11-20 10:30:31,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819604220] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:30:31,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587388660] [2022-11-20 10:30:31,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:31,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:30:31,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:31,876 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:30:31,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 10:30:31,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:31,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:30:31,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:30:32,000 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:32,000 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:30:32,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587388660] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:32,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:30:32,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-11-20 10:30:32,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116320759] [2022-11-20 10:30:32,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:32,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:30:32,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:32,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:30:32,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:30:32,009 INFO L87 Difference]: Start difference. First operand 71 states and 83 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:32,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:32,077 INFO L93 Difference]: Finished difference Result 71 states and 83 transitions. [2022-11-20 10:30:32,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:30:32,078 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 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 23 [2022-11-20 10:30:32,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:32,079 INFO L225 Difference]: With dead ends: 71 [2022-11-20 10:30:32,079 INFO L226 Difference]: Without dead ends: 68 [2022-11-20 10:30:32,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:30:32,081 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 52 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:32,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 60 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:30:32,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-20 10:30:32,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2022-11-20 10:30:32,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 61 states have (on average 1.278688524590164) internal successors, (78), 67 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:32,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 78 transitions. [2022-11-20 10:30:32,095 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 78 transitions. Word has length 23 [2022-11-20 10:30:32,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:32,096 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 78 transitions. [2022-11-20 10:30:32,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:32,096 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 78 transitions. [2022-11-20 10:30:32,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-20 10:30:32,097 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:32,097 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:32,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 10:30:32,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:30:32,303 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-20 10:30:32,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:32,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1371775832, now seen corresponding path program 1 times [2022-11-20 10:30:32,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:32,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66636691] [2022-11-20 10:30:32,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:32,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:32,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:32,338 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 10:30:32,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:32,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66636691] [2022-11-20 10:30:32,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66636691] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:32,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:32,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:30:32,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631238586] [2022-11-20 10:30:32,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:32,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:30:32,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:32,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:30:32,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:30:32,340 INFO L87 Difference]: Start difference. First operand 68 states and 78 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:32,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:32,390 INFO L93 Difference]: Finished difference Result 109 states and 130 transitions. [2022-11-20 10:30:32,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:30:32,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-20 10:30:32,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:32,392 INFO L225 Difference]: With dead ends: 109 [2022-11-20 10:30:32,393 INFO L226 Difference]: Without dead ends: 108 [2022-11-20 10:30:32,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:30:32,394 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 23 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:32,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 58 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:30:32,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2022-11-20 10:30:32,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 72. [2022-11-20 10:30:32,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 65 states have (on average 1.2923076923076924) internal successors, (84), 71 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:32,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 84 transitions. [2022-11-20 10:30:32,403 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 84 transitions. Word has length 28 [2022-11-20 10:30:32,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:32,403 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 84 transitions. [2022-11-20 10:30:32,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:32,403 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 84 transitions. [2022-11-20 10:30:32,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-20 10:30:32,404 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:32,404 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:32,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 10:30:32,404 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-20 10:30:32,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:32,405 INFO L85 PathProgramCache]: Analyzing trace with hash -424622070, now seen corresponding path program 1 times [2022-11-20 10:30:32,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:32,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619294653] [2022-11-20 10:30:32,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:32,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:32,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:32,433 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 10:30:32,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:32,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619294653] [2022-11-20 10:30:32,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619294653] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:32,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:32,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:30:32,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104133847] [2022-11-20 10:30:32,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:32,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:30:32,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:32,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:30:32,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:30:32,439 INFO L87 Difference]: Start difference. First operand 72 states and 84 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:32,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:32,495 INFO L93 Difference]: Finished difference Result 109 states and 128 transitions. [2022-11-20 10:30:32,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:30:32,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-20 10:30:32,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:32,497 INFO L225 Difference]: With dead ends: 109 [2022-11-20 10:30:32,497 INFO L226 Difference]: Without dead ends: 108 [2022-11-20 10:30:32,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:30:32,498 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 21 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:32,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 59 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:30:32,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2022-11-20 10:30:32,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 74. [2022-11-20 10:30:32,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 67 states have (on average 1.2835820895522387) internal successors, (86), 73 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:32,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 86 transitions. [2022-11-20 10:30:32,515 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 86 transitions. Word has length 29 [2022-11-20 10:30:32,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:32,515 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 86 transitions. [2022-11-20 10:30:32,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:32,516 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 86 transitions. [2022-11-20 10:30:32,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-20 10:30:32,519 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:32,520 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:32,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 10:30:32,521 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-20 10:30:32,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:32,522 INFO L85 PathProgramCache]: Analyzing trace with hash -424623160, now seen corresponding path program 1 times [2022-11-20 10:30:32,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:32,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917827942] [2022-11-20 10:30:32,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:32,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:32,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:32,657 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:32,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:32,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917827942] [2022-11-20 10:30:32,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917827942] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:30:32,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515700662] [2022-11-20 10:30:32,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:32,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:30:32,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:32,660 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:30:32,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 10:30:32,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:32,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:30:32,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:30:32,844 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:32,844 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:30:32,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515700662] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:32,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:30:32,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 12 [2022-11-20 10:30:32,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603622897] [2022-11-20 10:30:32,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:32,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:30:32,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:32,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:30:32,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:30:32,849 INFO L87 Difference]: Start difference. First operand 74 states and 86 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:32,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:32,995 INFO L93 Difference]: Finished difference Result 186 states and 224 transitions. [2022-11-20 10:30:32,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 10:30:32,996 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 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 29 [2022-11-20 10:30:32,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:32,997 INFO L225 Difference]: With dead ends: 186 [2022-11-20 10:30:32,998 INFO L226 Difference]: Without dead ends: 135 [2022-11-20 10:30:32,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-11-20 10:30:32,999 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 114 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:33,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 91 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:30:33,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-11-20 10:30:33,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 82. [2022-11-20 10:30:33,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 75 states have (on average 1.2933333333333332) internal successors, (97), 81 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:33,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 97 transitions. [2022-11-20 10:30:33,011 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 97 transitions. Word has length 29 [2022-11-20 10:30:33,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:33,012 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 97 transitions. [2022-11-20 10:30:33,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:33,012 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 97 transitions. [2022-11-20 10:30:33,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-20 10:30:33,015 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:33,015 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:33,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 10:30:33,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-20 10:30:33,221 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-20 10:30:33,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:33,222 INFO L85 PathProgramCache]: Analyzing trace with hash -238920585, now seen corresponding path program 1 times [2022-11-20 10:30:33,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:33,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597822040] [2022-11-20 10:30:33,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:33,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:33,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:33,268 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-20 10:30:33,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:33,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597822040] [2022-11-20 10:30:33,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597822040] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:30:33,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259981232] [2022-11-20 10:30:33,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:33,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:30:33,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:33,270 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:30:33,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 10:30:33,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:33,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 10:30:33,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:30:33,430 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:33,430 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:30:33,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259981232] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:33,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:30:33,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [3] total 8 [2022-11-20 10:30:33,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879275929] [2022-11-20 10:30:33,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:33,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:30:33,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:33,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:30:33,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:30:33,432 INFO L87 Difference]: Start difference. First operand 82 states and 97 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:33,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:33,519 INFO L93 Difference]: Finished difference Result 155 states and 182 transitions. [2022-11-20 10:30:33,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:30:33,520 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 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 33 [2022-11-20 10:30:33,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:33,521 INFO L225 Difference]: With dead ends: 155 [2022-11-20 10:30:33,521 INFO L226 Difference]: Without dead ends: 119 [2022-11-20 10:30:33,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:30:33,523 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 119 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:33,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 65 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:30:33,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-11-20 10:30:33,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 82. [2022-11-20 10:30:33,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 75 states have (on average 1.2666666666666666) internal successors, (95), 81 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:33,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 95 transitions. [2022-11-20 10:30:33,534 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 95 transitions. Word has length 33 [2022-11-20 10:30:33,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:33,535 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 95 transitions. [2022-11-20 10:30:33,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:33,536 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 95 transitions. [2022-11-20 10:30:33,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-20 10:30:33,539 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:33,539 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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] [2022-11-20 10:30:33,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 10:30:33,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-20 10:30:33,745 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-20 10:30:33,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:33,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1032957135, now seen corresponding path program 1 times [2022-11-20 10:30:33,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:33,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908636065] [2022-11-20 10:30:33,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:33,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:33,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:33,847 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:33,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:33,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908636065] [2022-11-20 10:30:33,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908636065] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:30:33,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669903545] [2022-11-20 10:30:33,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:33,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:30:33,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:33,849 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:30:33,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 10:30:33,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:33,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:30:33,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:30:33,975 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:33,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:30:34,067 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:34,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669903545] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:30:34,068 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:30:34,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2022-11-20 10:30:34,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839834817] [2022-11-20 10:30:34,068 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:30:34,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 10:30:34,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:34,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 10:30:34,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-20 10:30:34,071 INFO L87 Difference]: Start difference. First operand 82 states and 95 transitions. Second operand has 14 states, 13 states have (on average 5.384615384615385) internal successors, (70), 14 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:34,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:34,581 INFO L93 Difference]: Finished difference Result 167 states and 182 transitions. [2022-11-20 10:30:34,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-20 10:30:34,581 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.384615384615385) internal successors, (70), 14 states have internal predecessors, (70), 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 35 [2022-11-20 10:30:34,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:34,582 INFO L225 Difference]: With dead ends: 167 [2022-11-20 10:30:34,582 INFO L226 Difference]: Without dead ends: 166 [2022-11-20 10:30:34,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=263, Invalid=997, Unknown=0, NotChecked=0, Total=1260 [2022-11-20 10:30:34,583 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 255 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:34,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 210 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:30:34,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-20 10:30:34,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 104. [2022-11-20 10:30:34,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 97 states have (on average 1.2474226804123711) internal successors, (121), 103 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:34,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 121 transitions. [2022-11-20 10:30:34,599 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 121 transitions. Word has length 35 [2022-11-20 10:30:34,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:34,599 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 121 transitions. [2022-11-20 10:30:34,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.384615384615385) internal successors, (70), 14 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:34,599 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 121 transitions. [2022-11-20 10:30:34,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-20 10:30:34,603 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:34,603 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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] [2022-11-20 10:30:34,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 10:30:34,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-20 10:30:34,816 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-20 10:30:34,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:34,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1956899995, now seen corresponding path program 1 times [2022-11-20 10:30:34,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:34,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053344914] [2022-11-20 10:30:34,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:34,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:34,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:34,900 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:34,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:34,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053344914] [2022-11-20 10:30:34,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053344914] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:30:34,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156010133] [2022-11-20 10:30:34,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:34,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:30:34,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:34,902 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:30:34,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 10:30:34,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:34,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:30:34,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:30:35,021 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:35,021 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:30:35,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156010133] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:35,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:30:35,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2022-11-20 10:30:35,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936534164] [2022-11-20 10:30:35,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:35,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:30:35,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:35,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:30:35,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:30:35,023 INFO L87 Difference]: Start difference. First operand 104 states and 121 transitions. Second operand has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:35,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:35,174 INFO L93 Difference]: Finished difference Result 104 states and 121 transitions. [2022-11-20 10:30:35,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 10:30:35,175 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 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 36 [2022-11-20 10:30:35,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:35,175 INFO L225 Difference]: With dead ends: 104 [2022-11-20 10:30:35,175 INFO L226 Difference]: Without dead ends: 103 [2022-11-20 10:30:35,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-11-20 10:30:35,176 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 69 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:35,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 74 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:30:35,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-11-20 10:30:35,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2022-11-20 10:30:35,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 97 states have (on average 1.2164948453608246) internal successors, (118), 102 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:35,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 118 transitions. [2022-11-20 10:30:35,189 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 118 transitions. Word has length 36 [2022-11-20 10:30:35,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:35,189 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 118 transitions. [2022-11-20 10:30:35,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:35,189 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 118 transitions. [2022-11-20 10:30:35,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-20 10:30:35,190 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:35,190 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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] [2022-11-20 10:30:35,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-20 10:30:35,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-20 10:30:35,396 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-20 10:30:35,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:35,396 INFO L85 PathProgramCache]: Analyzing trace with hash 614783463, now seen corresponding path program 1 times [2022-11-20 10:30:35,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:35,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664794921] [2022-11-20 10:30:35,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:35,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:35,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:35,545 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:35,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:35,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664794921] [2022-11-20 10:30:35,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664794921] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:30:35,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117491760] [2022-11-20 10:30:35,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:35,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:30:35,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:35,571 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:30:35,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-20 10:30:35,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:35,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 10:30:35,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:30:35,799 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:35,800 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:30:35,910 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:35,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117491760] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:30:35,910 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:30:35,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2022-11-20 10:30:35,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358323484] [2022-11-20 10:30:35,912 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:30:35,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 10:30:35,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:35,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 10:30:35,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-11-20 10:30:35,913 INFO L87 Difference]: Start difference. First operand 103 states and 118 transitions. Second operand has 15 states, 15 states have (on average 4.2) internal successors, (63), 15 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:36,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:36,223 INFO L93 Difference]: Finished difference Result 171 states and 193 transitions. [2022-11-20 10:30:36,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 10:30:36,224 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.2) internal successors, (63), 15 states have internal predecessors, (63), 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 38 [2022-11-20 10:30:36,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:36,225 INFO L225 Difference]: With dead ends: 171 [2022-11-20 10:30:36,225 INFO L226 Difference]: Without dead ends: 95 [2022-11-20 10:30:36,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 63 SyntacticMatches, 7 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2022-11-20 10:30:36,226 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 73 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:36,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 215 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:30:36,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2022-11-20 10:30:36,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 85. [2022-11-20 10:30:36,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 79 states have (on average 1.1772151898734178) internal successors, (93), 84 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:36,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 93 transitions. [2022-11-20 10:30:36,237 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 93 transitions. Word has length 38 [2022-11-20 10:30:36,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:36,237 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 93 transitions. [2022-11-20 10:30:36,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.2) internal successors, (63), 15 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:36,238 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 93 transitions. [2022-11-20 10:30:36,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-20 10:30:36,238 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:36,238 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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] [2022-11-20 10:30:36,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-20 10:30:36,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-20 10:30:36,445 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-20 10:30:36,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:36,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1878417177, now seen corresponding path program 1 times [2022-11-20 10:30:36,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:36,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814760203] [2022-11-20 10:30:36,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:36,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:36,537 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:30:36,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:36,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814760203] [2022-11-20 10:30:36,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814760203] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:30:36,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895364095] [2022-11-20 10:30:36,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:36,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:30:36,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:36,540 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:30:36,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-20 10:30:36,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:36,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:30:36,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:30:36,671 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:30:36,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:30:36,754 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:30:36,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1895364095] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:30:36,755 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:30:36,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2022-11-20 10:30:36,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350516657] [2022-11-20 10:30:36,755 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:30:36,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 10:30:36,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:36,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 10:30:36,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-20 10:30:36,759 INFO L87 Difference]: Start difference. First operand 85 states and 93 transitions. Second operand has 14 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 14 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:37,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:37,042 INFO L93 Difference]: Finished difference Result 119 states and 126 transitions. [2022-11-20 10:30:37,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 10:30:37,043 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 14 states have internal predecessors, (82), 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 39 [2022-11-20 10:30:37,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:37,044 INFO L225 Difference]: With dead ends: 119 [2022-11-20 10:30:37,044 INFO L226 Difference]: Without dead ends: 118 [2022-11-20 10:30:37,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-11-20 10:30:37,045 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 122 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:37,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 139 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:30:37,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-11-20 10:30:37,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 105. [2022-11-20 10:30:37,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 99 states have (on average 1.1717171717171717) internal successors, (116), 104 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:37,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 116 transitions. [2022-11-20 10:30:37,058 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 116 transitions. Word has length 39 [2022-11-20 10:30:37,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:37,058 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 116 transitions. [2022-11-20 10:30:37,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 14 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:37,059 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 116 transitions. [2022-11-20 10:30:37,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-20 10:30:37,059 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:37,059 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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] [2022-11-20 10:30:37,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-20 10:30:37,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:30:37,265 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-20 10:30:37,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:37,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1898609531, now seen corresponding path program 1 times [2022-11-20 10:30:37,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:37,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744693952] [2022-11-20 10:30:37,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:37,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:37,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:37,371 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:30:37,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:37,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744693952] [2022-11-20 10:30:37,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744693952] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:30:37,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717593077] [2022-11-20 10:30:37,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:37,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:30:37,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:37,374 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:30:37,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-20 10:30:37,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:37,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:30:37,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:30:37,489 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:30:37,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:30:37,599 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:30:37,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717593077] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:30:37,599 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:30:37,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2022-11-20 10:30:37,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442043052] [2022-11-20 10:30:37,600 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:30:37,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 10:30:37,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:37,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 10:30:37,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-11-20 10:30:37,601 INFO L87 Difference]: Start difference. First operand 105 states and 116 transitions. Second operand has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:37,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:37,791 INFO L93 Difference]: Finished difference Result 105 states and 116 transitions. [2022-11-20 10:30:37,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 10:30:37,792 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 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 40 [2022-11-20 10:30:37,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:37,793 INFO L225 Difference]: With dead ends: 105 [2022-11-20 10:30:37,793 INFO L226 Difference]: Without dead ends: 104 [2022-11-20 10:30:37,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2022-11-20 10:30:37,794 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 115 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:37,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 129 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:30:37,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-11-20 10:30:37,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2022-11-20 10:30:37,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 99 states have (on average 1.1515151515151516) internal successors, (114), 103 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:37,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 114 transitions. [2022-11-20 10:30:37,807 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 114 transitions. Word has length 40 [2022-11-20 10:30:37,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:37,807 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 114 transitions. [2022-11-20 10:30:37,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:37,807 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 114 transitions. [2022-11-20 10:30:37,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-20 10:30:37,808 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:37,808 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 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] [2022-11-20 10:30:37,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-20 10:30:38,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:30:38,014 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-20 10:30:38,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:38,014 INFO L85 PathProgramCache]: Analyzing trace with hash 930095966, now seen corresponding path program 1 times [2022-11-20 10:30:38,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:38,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794829359] [2022-11-20 10:30:38,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:38,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:38,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:38,065 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-20 10:30:38,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:38,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794829359] [2022-11-20 10:30:38,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794829359] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:30:38,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140554244] [2022-11-20 10:30:38,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:38,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:30:38,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:38,067 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:30:38,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-20 10:30:38,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:38,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:30:38,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:30:38,230 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 10:30:38,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:30:38,349 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 10:30:38,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140554244] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:30:38,349 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:30:38,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 6, 6] total 13 [2022-11-20 10:30:38,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516343773] [2022-11-20 10:30:38,350 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:30:38,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 10:30:38,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:38,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 10:30:38,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-11-20 10:30:38,352 INFO L87 Difference]: Start difference. First operand 104 states and 114 transitions. Second operand has 14 states, 13 states have (on average 9.461538461538462) internal successors, (123), 14 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:38,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:38,574 INFO L93 Difference]: Finished difference Result 166 states and 185 transitions. [2022-11-20 10:30:38,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 10:30:38,574 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 9.461538461538462) internal successors, (123), 14 states have internal predecessors, (123), 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 50 [2022-11-20 10:30:38,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:38,575 INFO L225 Difference]: With dead ends: 166 [2022-11-20 10:30:38,575 INFO L226 Difference]: Without dead ends: 165 [2022-11-20 10:30:38,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=166, Invalid=340, Unknown=0, NotChecked=0, Total=506 [2022-11-20 10:30:38,578 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 187 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:38,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 99 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:30:38,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-11-20 10:30:38,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 103. [2022-11-20 10:30:38,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 99 states have (on average 1.1313131313131313) internal successors, (112), 102 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:38,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 112 transitions. [2022-11-20 10:30:38,594 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 112 transitions. Word has length 50 [2022-11-20 10:30:38,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:38,594 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 112 transitions. [2022-11-20 10:30:38,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 9.461538461538462) internal successors, (123), 14 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:38,595 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 112 transitions. [2022-11-20 10:30:38,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-20 10:30:38,595 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:38,595 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:38,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-20 10:30:38,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-11-20 10:30:38,801 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-20 10:30:38,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:38,802 INFO L85 PathProgramCache]: Analyzing trace with hash -806738092, now seen corresponding path program 1 times [2022-11-20 10:30:38,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:38,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892832905] [2022-11-20 10:30:38,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:38,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:38,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:38,981 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 10:30:38,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:38,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892832905] [2022-11-20 10:30:38,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892832905] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:30:38,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398065094] [2022-11-20 10:30:38,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:38,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:30:38,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:38,984 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:30:39,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-20 10:30:39,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:39,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:30:39,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:30:39,092 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-20 10:30:39,093 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:30:39,149 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-20 10:30:39,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398065094] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:30:39,149 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:30:39,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 13 [2022-11-20 10:30:39,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001795153] [2022-11-20 10:30:39,150 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:30:39,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 10:30:39,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:39,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 10:30:39,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-20 10:30:39,153 INFO L87 Difference]: Start difference. First operand 103 states and 112 transitions. Second operand has 14 states, 13 states have (on average 8.615384615384615) internal successors, (112), 14 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:39,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:39,763 INFO L93 Difference]: Finished difference Result 287 states and 324 transitions. [2022-11-20 10:30:39,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-20 10:30:39,765 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.615384615384615) internal successors, (112), 14 states have internal predecessors, (112), 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 64 [2022-11-20 10:30:39,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:39,767 INFO L225 Difference]: With dead ends: 287 [2022-11-20 10:30:39,767 INFO L226 Difference]: Without dead ends: 286 [2022-11-20 10:30:39,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=330, Invalid=1152, Unknown=0, NotChecked=0, Total=1482 [2022-11-20 10:30:39,768 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 335 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:39,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 194 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:30:39,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-11-20 10:30:39,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 157. [2022-11-20 10:30:39,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 153 states have (on average 1.1568627450980393) internal successors, (177), 156 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:39,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 177 transitions. [2022-11-20 10:30:39,790 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 177 transitions. Word has length 64 [2022-11-20 10:30:39,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:39,790 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 177 transitions. [2022-11-20 10:30:39,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.615384615384615) internal successors, (112), 14 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:39,791 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 177 transitions. [2022-11-20 10:30:39,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-20 10:30:39,791 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:39,792 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:39,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-20 10:30:39,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-11-20 10:30:39,997 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-20 10:30:39,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:39,997 INFO L85 PathProgramCache]: Analyzing trace with hash 760923022, now seen corresponding path program 1 times [2022-11-20 10:30:39,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:39,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160143930] [2022-11-20 10:30:39,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:39,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:40,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:40,069 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-20 10:30:40,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:40,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160143930] [2022-11-20 10:30:40,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160143930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:40,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:40,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:30:40,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062702371] [2022-11-20 10:30:40,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:40,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:30:40,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:40,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:30:40,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:30:40,072 INFO L87 Difference]: Start difference. First operand 157 states and 177 transitions. Second operand has 5 states, 4 states have (on average 12.25) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:40,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:40,177 INFO L93 Difference]: Finished difference Result 177 states and 199 transitions. [2022-11-20 10:30:40,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:30:40,178 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.25) internal successors, (49), 5 states have internal predecessors, (49), 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 65 [2022-11-20 10:30:40,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:40,179 INFO L225 Difference]: With dead ends: 177 [2022-11-20 10:30:40,179 INFO L226 Difference]: Without dead ends: 176 [2022-11-20 10:30:40,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:30:40,180 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 32 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:40,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 84 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:30:40,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-11-20 10:30:40,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 156. [2022-11-20 10:30:40,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 153 states have (on average 1.1241830065359477) internal successors, (172), 155 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:40,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 172 transitions. [2022-11-20 10:30:40,202 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 172 transitions. Word has length 65 [2022-11-20 10:30:40,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:40,202 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 172 transitions. [2022-11-20 10:30:40,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.25) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:40,202 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 172 transitions. [2022-11-20 10:30:40,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-20 10:30:40,203 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:40,203 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:40,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-20 10:30:40,204 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-20 10:30:40,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:40,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1457087563, now seen corresponding path program 1 times [2022-11-20 10:30:40,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:40,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269852815] [2022-11-20 10:30:40,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:40,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:40,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:40,360 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 10:30:40,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:40,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269852815] [2022-11-20 10:30:40,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269852815] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:30:40,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456280100] [2022-11-20 10:30:40,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:40,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:30:40,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:40,362 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:30:40,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-20 10:30:40,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:40,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 10:30:40,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:30:40,537 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 10:30:40,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:30:40,710 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 10:30:40,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456280100] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:30:40,711 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:30:40,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 22 [2022-11-20 10:30:40,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134537983] [2022-11-20 10:30:40,711 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:30:40,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-20 10:30:40,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:40,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-20 10:30:40,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2022-11-20 10:30:40,713 INFO L87 Difference]: Start difference. First operand 156 states and 172 transitions. Second operand has 23 states, 22 states have (on average 6.954545454545454) internal successors, (153), 23 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:41,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:41,721 INFO L93 Difference]: Finished difference Result 328 states and 360 transitions. [2022-11-20 10:30:41,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-11-20 10:30:41,722 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 6.954545454545454) internal successors, (153), 23 states have internal predecessors, (153), 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 71 [2022-11-20 10:30:41,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:41,723 INFO L225 Difference]: With dead ends: 328 [2022-11-20 10:30:41,723 INFO L226 Difference]: Without dead ends: 327 [2022-11-20 10:30:41,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1408 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=884, Invalid=3538, Unknown=0, NotChecked=0, Total=4422 [2022-11-20 10:30:41,726 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 550 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:41,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [550 Valid, 256 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 10:30:41,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-11-20 10:30:41,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 205. [2022-11-20 10:30:41,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 202 states have (on average 1.1287128712871286) internal successors, (228), 204 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:41,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 228 transitions. [2022-11-20 10:30:41,755 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 228 transitions. Word has length 71 [2022-11-20 10:30:41,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:41,756 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 228 transitions. [2022-11-20 10:30:41,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 6.954545454545454) internal successors, (153), 23 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:41,756 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 228 transitions. [2022-11-20 10:30:41,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-20 10:30:41,762 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:41,763 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:41,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-20 10:30:41,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-20 10:30:41,969 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-20 10:30:41,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:41,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1702340252, now seen corresponding path program 1 times [2022-11-20 10:30:41,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:41,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098981799] [2022-11-20 10:30:41,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:41,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:41,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:42,059 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 40 proven. 5 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-20 10:30:42,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:42,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098981799] [2022-11-20 10:30:42,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098981799] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:30:42,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550013730] [2022-11-20 10:30:42,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:42,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:30:42,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:42,062 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:30:42,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-20 10:30:42,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:42,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 10:30:42,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:30:42,337 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 48 proven. 14 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 10:30:42,338 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:30:42,501 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 39 proven. 23 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 10:30:42,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550013730] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:30:42,501 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:30:42,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 11, 11] total 18 [2022-11-20 10:30:42,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240537305] [2022-11-20 10:30:42,501 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:30:42,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 10:30:42,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:42,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 10:30:42,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2022-11-20 10:30:42,503 INFO L87 Difference]: Start difference. First operand 205 states and 228 transitions. Second operand has 18 states, 18 states have (on average 7.111111111111111) internal successors, (128), 18 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:43,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:43,098 INFO L93 Difference]: Finished difference Result 416 states and 461 transitions. [2022-11-20 10:30:43,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 10:30:43,099 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.111111111111111) internal successors, (128), 18 states have internal predecessors, (128), 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 72 [2022-11-20 10:30:43,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:43,100 INFO L225 Difference]: With dead ends: 416 [2022-11-20 10:30:43,101 INFO L226 Difference]: Without dead ends: 227 [2022-11-20 10:30:43,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 129 SyntacticMatches, 7 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=295, Invalid=1037, Unknown=0, NotChecked=0, Total=1332 [2022-11-20 10:30:43,102 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 250 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:43,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 196 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:30:43,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-11-20 10:30:43,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 214. [2022-11-20 10:30:43,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 211 states have (on average 1.0900473933649288) internal successors, (230), 213 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:43,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 230 transitions. [2022-11-20 10:30:43,133 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 230 transitions. Word has length 72 [2022-11-20 10:30:43,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:43,133 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 230 transitions. [2022-11-20 10:30:43,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.111111111111111) internal successors, (128), 18 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:43,134 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 230 transitions. [2022-11-20 10:30:43,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-20 10:30:43,135 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:43,135 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:43,143 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-11-20 10:30:43,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-11-20 10:30:43,347 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-20 10:30:43,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:43,347 INFO L85 PathProgramCache]: Analyzing trace with hash -10778355, now seen corresponding path program 2 times [2022-11-20 10:30:43,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:43,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579715835] [2022-11-20 10:30:43,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:43,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:43,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:43,515 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-20 10:30:43,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:43,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579715835] [2022-11-20 10:30:43,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579715835] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:30:43,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114485217] [2022-11-20 10:30:43,516 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:30:43,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:30:43,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:43,517 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:30:43,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-20 10:30:43,568 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 10:30:43,568 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:30:43,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 10:30:43,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:30:43,757 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 0 proven. 122 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-20 10:30:43,757 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:30:43,969 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 0 proven. 122 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-20 10:30:43,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114485217] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:30:43,970 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:30:43,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 20 [2022-11-20 10:30:43,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10532222] [2022-11-20 10:30:43,970 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:30:43,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-20 10:30:43,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:43,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-20 10:30:43,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-11-20 10:30:43,973 INFO L87 Difference]: Start difference. First operand 214 states and 230 transitions. Second operand has 21 states, 20 states have (on average 10.5) internal successors, (210), 21 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:44,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:44,492 INFO L93 Difference]: Finished difference Result 222 states and 236 transitions. [2022-11-20 10:30:44,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 10:30:44,498 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 10.5) internal successors, (210), 21 states have internal predecessors, (210), 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 102 [2022-11-20 10:30:44,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:44,499 INFO L225 Difference]: With dead ends: 222 [2022-11-20 10:30:44,499 INFO L226 Difference]: Without dead ends: 221 [2022-11-20 10:30:44,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=411, Invalid=1071, Unknown=0, NotChecked=0, Total=1482 [2022-11-20 10:30:44,501 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 404 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:44,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 107 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:30:44,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-11-20 10:30:44,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 177. [2022-11-20 10:30:44,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 175 states have (on average 1.0742857142857143) internal successors, (188), 176 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:44,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 188 transitions. [2022-11-20 10:30:44,531 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 188 transitions. Word has length 102 [2022-11-20 10:30:44,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:44,532 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 188 transitions. [2022-11-20 10:30:44,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 10.5) internal successors, (210), 21 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:44,532 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 188 transitions. [2022-11-20 10:30:44,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-20 10:30:44,533 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:44,533 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:44,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-20 10:30:44,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:30:44,739 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-20 10:30:44,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:44,740 INFO L85 PathProgramCache]: Analyzing trace with hash -2028785086, now seen corresponding path program 2 times [2022-11-20 10:30:44,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:44,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756821415] [2022-11-20 10:30:44,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:44,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:44,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:45,122 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 39 proven. 167 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-20 10:30:45,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:45,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756821415] [2022-11-20 10:30:45,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756821415] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:30:45,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221076483] [2022-11-20 10:30:45,122 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:30:45,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:30:45,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:45,124 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:30:45,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-20 10:30:45,176 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 10:30:45,176 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:30:45,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 10:30:45,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:30:45,509 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 68 proven. 88 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-20 10:30:45,509 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:30:45,788 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-20 10:30:45,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221076483] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:30:45,789 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:30:45,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 7, 7] total 29 [2022-11-20 10:30:45,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247941648] [2022-11-20 10:30:45,789 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:30:45,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-20 10:30:45,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:45,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-20 10:30:45,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=723, Unknown=0, NotChecked=0, Total=812 [2022-11-20 10:30:45,791 INFO L87 Difference]: Start difference. First operand 177 states and 188 transitions. Second operand has 29 states, 29 states have (on average 7.896551724137931) internal successors, (229), 29 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:47,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:47,619 INFO L93 Difference]: Finished difference Result 355 states and 380 transitions. [2022-11-20 10:30:47,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-20 10:30:47,620 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 7.896551724137931) internal successors, (229), 29 states have internal predecessors, (229), 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 111 [2022-11-20 10:30:47,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:47,621 INFO L225 Difference]: With dead ends: 355 [2022-11-20 10:30:47,621 INFO L226 Difference]: Without dead ends: 241 [2022-11-20 10:30:47,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1198 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1330, Invalid=3926, Unknown=0, NotChecked=0, Total=5256 [2022-11-20 10:30:47,624 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 378 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:47,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 98 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:30:47,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-11-20 10:30:47,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 234. [2022-11-20 10:30:47,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 233 states have (on average 1.0429184549356223) internal successors, (243), 233 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:47,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 243 transitions. [2022-11-20 10:30:47,660 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 243 transitions. Word has length 111 [2022-11-20 10:30:47,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:47,661 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 243 transitions. [2022-11-20 10:30:47,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 7.896551724137931) internal successors, (229), 29 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:47,661 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 243 transitions. [2022-11-20 10:30:47,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-20 10:30:47,663 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:30:47,663 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:47,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-20 10:30:47,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-11-20 10:30:47,868 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-20 10:30:47,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:47,869 INFO L85 PathProgramCache]: Analyzing trace with hash -237470542, now seen corresponding path program 2 times [2022-11-20 10:30:47,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:47,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652288943] [2022-11-20 10:30:47,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:47,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:47,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:48,105 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 216 proven. 63 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2022-11-20 10:30:48,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:48,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652288943] [2022-11-20 10:30:48,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652288943] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:30:48,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123859343] [2022-11-20 10:30:48,106 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:30:48,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:30:48,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:48,107 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:30:48,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-20 10:30:48,162 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 10:30:48,163 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:30:48,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 10:30:48,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:30:48,513 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 281 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2022-11-20 10:30:48,513 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:30:48,865 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 281 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2022-11-20 10:30:48,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123859343] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:30:48,865 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:30:48,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 24 [2022-11-20 10:30:48,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710646539] [2022-11-20 10:30:48,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:30:48,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-20 10:30:48,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:48,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-20 10:30:48,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2022-11-20 10:30:48,868 INFO L87 Difference]: Start difference. First operand 234 states and 243 transitions. Second operand has 24 states, 24 states have (on average 9.791666666666666) internal successors, (235), 24 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:49,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:30:49,879 INFO L93 Difference]: Finished difference Result 313 states and 328 transitions. [2022-11-20 10:30:49,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-20 10:30:49,880 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 9.791666666666666) internal successors, (235), 24 states have internal predecessors, (235), 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 144 [2022-11-20 10:30:49,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:30:49,884 INFO L225 Difference]: With dead ends: 313 [2022-11-20 10:30:49,884 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 10:30:49,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=528, Invalid=1634, Unknown=0, NotChecked=0, Total=2162 [2022-11-20 10:30:49,887 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 260 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:30:49,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 107 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:30:49,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 10:30:49,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 10:30:49,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:49,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 10:30:49,889 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 144 [2022-11-20 10:30:49,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:30:49,890 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 10:30:49,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.791666666666666) internal successors, (235), 24 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:49,890 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 10:30:49,890 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 10:30:49,894 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2022-11-20 10:30:49,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2022-11-20 10:30:49,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2022-11-20 10:30:49,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2022-11-20 10:30:49,898 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2022-11-20 10:30:49,898 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2022-11-20 10:30:49,898 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2022-11-20 10:30:49,898 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2022-11-20 10:30:49,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2022-11-20 10:30:49,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2022-11-20 10:30:49,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2022-11-20 10:30:49,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2022-11-20 10:30:49,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2022-11-20 10:30:49,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2022-11-20 10:30:49,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2022-11-20 10:30:49,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2022-11-20 10:30:49,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2022-11-20 10:30:49,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2022-11-20 10:30:49,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-20 10:30:50,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-11-20 10:30:50,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 10:31:09,025 WARN L233 SmtUtils]: Spent 15.88s on a formula simplification. DAG size of input: 171 DAG size of output: 169 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-20 10:31:11,827 INFO L899 garLoopResultBuilder]: For program point L35-3(line 35) no Hoare annotation was computed. [2022-11-20 10:31:11,827 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2022-11-20 10:31:11,828 INFO L899 garLoopResultBuilder]: For program point L35-4(lines 35 37) no Hoare annotation was computed. [2022-11-20 10:31:11,828 INFO L899 garLoopResultBuilder]: For program point L35-6(lines 35 37) no Hoare annotation was computed. [2022-11-20 10:31:11,828 INFO L899 garLoopResultBuilder]: For program point L35-7(line 35) no Hoare annotation was computed. [2022-11-20 10:31:11,828 INFO L899 garLoopResultBuilder]: For program point L35-8(line 35) no Hoare annotation was computed. [2022-11-20 10:31:11,829 INFO L895 garLoopResultBuilder]: At program point L35-9(lines 35 37) the Hoare annotation is: (let ((.cse16 (* 2 |ULTIMATE.start_main_~i~0#1|))) (let ((.cse0 (<= .cse16 |ULTIMATE.start_main_~j~0#1|)) (.cse2 (<= |ULTIMATE.start_main_~j~0#1| .cse16)) (.cse9 (< |ULTIMATE.start_main_~k~0#1| 2147483647)) (.cse10 (<= 2 |ULTIMATE.start_main_~i~0#1|)) (.cse11 (<= |ULTIMATE.start_main_~i~0#1| 666665)) (.cse8 (<= (+ |ULTIMATE.start_main_~l~0#1| |ULTIMATE.start_main_~m~0#1|) 1999998)) (.cse13 (<= 1 |ULTIMATE.start_main_~i~0#1|)) (.cse1 (< |ULTIMATE.start_main_~l~0#1| 1000000)) (.cse3 (<= 0 (+ 999999 |ULTIMATE.start_main_~n~0#1|))) (.cse14 (<= 2 |ULTIMATE.start_main_~j~0#1|)) (.cse4 (<= 0 (+ 1999998 |ULTIMATE.start_main_~l~0#1| |ULTIMATE.start_main_~m~0#1|))) (.cse5 (<= 0 (+ 999999 |ULTIMATE.start_main_~m~0#1|))) (.cse6 (<= (* 3 |ULTIMATE.start_main_~n~0#1|) 1999998)) (.cse12 (<= 1 |ULTIMATE.start_main_~k~0#1|)) (.cse15 (<= |ULTIMATE.start_main_~i~0#1| 1)) (.cse7 (< |ULTIMATE.start_main_~m~0#1| 1000000))) (or (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse8 .cse9 .cse0 .cse1 .cse2 .cse3 .cse4 .cse10 .cse5 .cse11 .cse6 .cse12 .cse7) (and .cse8 .cse9 (< |ULTIMATE.start_main_~j~0#1| 2147483647) (<= (+ 2 |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~j~0#1|) .cse1 .cse3 (<= |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~k~0#1|) .cse4 .cse10 .cse5 .cse11 .cse6 .cse7) (and .cse8 .cse13 .cse1 .cse3 .cse14 .cse4 (<= |ULTIMATE.start_main_~j~0#1| 2) .cse5 .cse6 .cse15 .cse7) (and .cse8 .cse13 .cse1 .cse3 .cse14 (<= |ULTIMATE.start_main_~j~0#1| (+ 3 |ULTIMATE.start_main_~i~0#1|)) .cse4 .cse5 .cse6 .cse12 (<= |ULTIMATE.start_main_~k~0#1| (+ |ULTIMATE.start_main_~i~0#1| 1)) .cse15 .cse7)))) [2022-11-20 10:31:11,829 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2022-11-20 10:31:11,829 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-20 10:31:11,829 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-20 10:31:11,830 INFO L899 garLoopResultBuilder]: For program point L36-2(lines 36 37) no Hoare annotation was computed. [2022-11-20 10:31:11,830 INFO L899 garLoopResultBuilder]: For program point L36-3(line 36) no Hoare annotation was computed. [2022-11-20 10:31:11,830 INFO L899 garLoopResultBuilder]: For program point L36-4(line 36) no Hoare annotation was computed. [2022-11-20 10:31:11,830 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2022-11-20 10:31:11,830 INFO L895 garLoopResultBuilder]: At program point L36-5(lines 36 37) the Hoare annotation is: (let ((.cse5 (<= |ULTIMATE.start_main_~i~0#1| 1)) (.cse0 (< |ULTIMATE.start_main_~l~0#1| 1000000)) (.cse1 (<= 0 (+ 999999 |ULTIMATE.start_main_~n~0#1|))) (.cse6 (* 3 |ULTIMATE.start_main_~i~0#1|)) (.cse2 (<= 0 (+ 1999998 |ULTIMATE.start_main_~l~0#1| |ULTIMATE.start_main_~m~0#1|))) (.cse3 (<= 0 (+ 999999 |ULTIMATE.start_main_~m~0#1|))) (.cse9 (+ |ULTIMATE.start_main_~i~0#1| 1)) (.cse7 (<= |ULTIMATE.start_main_~i~0#1| 666665)) (.cse4 (<= (* 3 |ULTIMATE.start_main_~n~0#1|) 1999998)) (.cse8 (< |ULTIMATE.start_main_~m~0#1| 1000000))) (or (and .cse0 .cse1 (<= |ULTIMATE.start_main_~m~0#1| 999999) .cse2 (<= |ULTIMATE.start_main_~j~0#1| 2) .cse3 (<= |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~i~0#1|) .cse4 (<= 1 |ULTIMATE.start_main_~k~0#1|) .cse5 (< |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~j~0#1|)) (and .cse0 (<= (+ |ULTIMATE.start_main_~j~0#1| 1) .cse6) (<= (+ 2 |ULTIMATE.start_main_~k~0#1|) |ULTIMATE.start_main_~j~0#1|) .cse1 (<= |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~k~0#1|) .cse2 .cse3 .cse7 .cse4 .cse8) (and .cse0 .cse1 (<= 2 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| |ULTIMATE.start_main_~k~0#1|) .cse2 .cse3 .cse4 (<= |ULTIMATE.start_main_~k~0#1| .cse9) .cse5 .cse8) (and (< |ULTIMATE.start_main_~k~0#1| 2147483647) (<= (+ 2 |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~j~0#1|) .cse0 .cse1 (< |ULTIMATE.start_main_~j~0#1| .cse6) .cse2 .cse3 (<= .cse9 |ULTIMATE.start_main_~k~0#1|) .cse7 .cse4 .cse8))) [2022-11-20 10:31:11,831 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 10:31:11,831 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-20 10:31:11,831 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2022-11-20 10:31:11,831 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2022-11-20 10:31:11,831 INFO L899 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2022-11-20 10:31:11,831 INFO L899 garLoopResultBuilder]: For program point L37-1(line 37) no Hoare annotation was computed. [2022-11-20 10:31:11,831 INFO L899 garLoopResultBuilder]: For program point L37-2(line 37) no Hoare annotation was computed. [2022-11-20 10:31:11,832 INFO L899 garLoopResultBuilder]: For program point L37-3(line 37) no Hoare annotation was computed. [2022-11-20 10:31:11,832 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2022-11-20 10:31:11,832 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2022-11-20 10:31:11,832 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2022-11-20 10:31:11,832 INFO L895 garLoopResultBuilder]: At program point L38(lines 25 40) the Hoare annotation is: (<= |ULTIMATE.start_main_~n~0#1| 999999) [2022-11-20 10:31:11,832 INFO L899 garLoopResultBuilder]: For program point L30(line 30) no Hoare annotation was computed. [2022-11-20 10:31:11,833 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2022-11-20 10:31:11,833 INFO L902 garLoopResultBuilder]: At program point L39(lines 25 40) the Hoare annotation is: true [2022-11-20 10:31:11,833 INFO L899 garLoopResultBuilder]: For program point L31(line 31) no Hoare annotation was computed. [2022-11-20 10:31:11,833 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2022-11-20 10:31:11,833 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2022-11-20 10:31:11,834 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-20 10:31:11,834 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-20 10:31:11,834 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2022-11-20 10:31:11,834 INFO L899 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2022-11-20 10:31:11,834 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 10:31:11,834 INFO L899 garLoopResultBuilder]: For program point L33-1(line 33) no Hoare annotation was computed. [2022-11-20 10:31:11,835 INFO L899 garLoopResultBuilder]: For program point L33-2(line 33) no Hoare annotation was computed. [2022-11-20 10:31:11,835 INFO L899 garLoopResultBuilder]: For program point L33-3(line 33) no Hoare annotation was computed. [2022-11-20 10:31:11,835 INFO L899 garLoopResultBuilder]: For program point L33-4(line 33) no Hoare annotation was computed. [2022-11-20 10:31:11,835 INFO L899 garLoopResultBuilder]: For program point L33-5(line 33) no Hoare annotation was computed. [2022-11-20 10:31:11,835 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-20 10:31:11,835 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2022-11-20 10:31:11,836 INFO L899 garLoopResultBuilder]: For program point L34-2(lines 34 37) no Hoare annotation was computed. [2022-11-20 10:31:11,836 INFO L899 garLoopResultBuilder]: For program point L34-3(line 34) no Hoare annotation was computed. [2022-11-20 10:31:11,836 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2022-11-20 10:31:11,836 INFO L899 garLoopResultBuilder]: For program point L34-4(line 34) no Hoare annotation was computed. [2022-11-20 10:31:11,836 INFO L895 garLoopResultBuilder]: At program point L34-5(lines 34 37) the Hoare annotation is: (let ((.cse0 (< |ULTIMATE.start_main_~l~0#1| 1000000)) (.cse1 (<= 0 (+ 999999 |ULTIMATE.start_main_~n~0#1|))) (.cse2 (<= |ULTIMATE.start_main_~m~0#1| 999999)) (.cse3 (<= 0 (+ 1999998 |ULTIMATE.start_main_~l~0#1| |ULTIMATE.start_main_~m~0#1|))) (.cse4 (<= 0 (+ 999999 |ULTIMATE.start_main_~m~0#1|))) (.cse5 (<= (* 3 |ULTIMATE.start_main_~n~0#1|) 1999998))) (or (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and (< |ULTIMATE.start_main_~k~0#1| 2147483647) (< |ULTIMATE.start_main_~j~0#1| 2147483647) .cse0 .cse1 (<= 2 |ULTIMATE.start_main_~j~0#1|) .cse3 (<= 2 |ULTIMATE.start_main_~i~0#1|) .cse4 .cse5 (<= 1 |ULTIMATE.start_main_~k~0#1|) (< |ULTIMATE.start_main_~i~0#1| 715827882) (< |ULTIMATE.start_main_~m~0#1| 1000000)) (and (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse0 (< 0 (+ 2147483650 |ULTIMATE.start_main_~j~0#1|)) .cse1 .cse2 .cse3 (<= |ULTIMATE.start_main_~j~0#1| 2) .cse4 .cse5 (<= |ULTIMATE.start_main_~i~0#1| 1)))) [2022-11-20 10:31:11,836 INFO L899 garLoopResultBuilder]: For program point L18(lines 18 20) no Hoare annotation was computed. [2022-11-20 10:31:11,837 INFO L895 garLoopResultBuilder]: At program point L18-2(lines 17 22) the Hoare annotation is: (let ((.cse0 (<= (+ |ULTIMATE.start_main_~l~0#1| |ULTIMATE.start_main_~m~0#1|) 1999998)) (.cse1 (< |ULTIMATE.start_main_~i~0#1| 1073741823)) (.cse2 (<= 1 |ULTIMATE.start_main_~i~0#1|)) (.cse4 (<= (+ |ULTIMATE.start_main_~j~0#1| 1) (* 3 |ULTIMATE.start_main_~i~0#1|))) (.cse5 (<= |ULTIMATE.start_main_~n~0#1| 999999)) (.cse9 (<= |ULTIMATE.start_main_~i~0#1| 666665)) (.cse3 (< |ULTIMATE.start_main_~l~0#1| 1000000)) (.cse6 (<= 0 (+ 999999 |ULTIMATE.start_main_~n~0#1|))) (.cse7 (<= 0 (+ 1999998 |ULTIMATE.start_main_~l~0#1| |ULTIMATE.start_main_~m~0#1|))) (.cse8 (<= 0 (+ 999999 |ULTIMATE.start_main_~m~0#1|))) (.cse10 (<= (* 3 |ULTIMATE.start_main_~n~0#1|) 1999998)) (.cse12 (< |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~j~0#1|)) (.cse11 (< |ULTIMATE.start_main_~m~0#1| 1000000))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= (+ 2 |ULTIMATE.start_main_~k~0#1|) |ULTIMATE.start_main_~j~0#1|) .cse5 .cse6 (<= |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~k~0#1|) .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (<= (+ |ULTIMATE.start_main_~i~0#1| 1) |ULTIMATE.start_main_~k~0#1|) .cse9 .cse10 .cse12 .cse11) (and .cse3 .cse6 .cse7 (<= |ULTIMATE.start_main_~j~0#1| 2) .cse8 (<= |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~i~0#1|) .cse10 (<= 1 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 1) .cse12 .cse11))) [2022-11-20 10:31:11,837 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-20 10:31:11,837 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-20 10:31:11,837 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2022-11-20 10:31:11,837 INFO L899 garLoopResultBuilder]: For program point L35-1(line 35) no Hoare annotation was computed. [2022-11-20 10:31:11,841 INFO L444 BasicCegarLoop]: Path program 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] [2022-11-20 10:31:11,844 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 10:31:11,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:31:11 BoogieIcfgContainer [2022-11-20 10:31:11,868 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 10:31:11,869 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 10:31:11,869 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 10:31:11,869 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 10:31:11,870 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:30:28" (3/4) ... [2022-11-20 10:31:11,873 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 10:31:11,883 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-20 10:31:11,884 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 10:31:11,884 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 10:31:11,884 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 10:31:11,939 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 10:31:11,940 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 10:31:11,940 INFO L158 Benchmark]: Toolchain (without parser) took 43810.59ms. Allocated memory was 167.8MB in the beginning and 402.7MB in the end (delta: 234.9MB). Free memory was 122.3MB in the beginning and 145.4MB in the end (delta: -23.1MB). Peak memory consumption was 214.9MB. Max. memory is 16.1GB. [2022-11-20 10:31:11,940 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 134.2MB. Free memory is still 76.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:31:11,941 INFO L158 Benchmark]: CACSL2BoogieTranslator took 257.40ms. Allocated memory is still 167.8MB. Free memory was 121.7MB in the beginning and 111.1MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 10:31:11,941 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.73ms. Allocated memory is still 167.8MB. Free memory was 111.1MB in the beginning and 109.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:31:11,943 INFO L158 Benchmark]: Boogie Preprocessor took 21.34ms. Allocated memory is still 167.8MB. Free memory was 109.7MB in the beginning and 108.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:31:11,944 INFO L158 Benchmark]: RCFGBuilder took 474.39ms. Allocated memory is still 167.8MB. Free memory was 108.5MB in the beginning and 95.9MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 10:31:11,946 INFO L158 Benchmark]: TraceAbstraction took 42946.90ms. Allocated memory was 167.8MB in the beginning and 402.7MB in the end (delta: 234.9MB). Free memory was 95.3MB in the beginning and 148.6MB in the end (delta: -53.2MB). Peak memory consumption was 201.0MB. Max. memory is 16.1GB. [2022-11-20 10:31:11,946 INFO L158 Benchmark]: Witness Printer took 71.06ms. Allocated memory is still 402.7MB. Free memory was 148.6MB in the beginning and 145.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 10:31:11,949 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 134.2MB. Free memory is still 76.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 257.40ms. Allocated memory is still 167.8MB. Free memory was 121.7MB in the beginning and 111.1MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.73ms. Allocated memory is still 167.8MB. Free memory was 111.1MB in the beginning and 109.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.34ms. Allocated memory is still 167.8MB. Free memory was 109.7MB in the beginning and 108.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 474.39ms. Allocated memory is still 167.8MB. Free memory was 108.5MB in the beginning and 95.9MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 42946.90ms. Allocated memory was 167.8MB in the beginning and 402.7MB in the end (delta: 234.9MB). Free memory was 95.3MB in the beginning and 148.6MB in the end (delta: -53.2MB). Peak memory consumption was 201.0MB. Max. memory is 16.1GB. * Witness Printer took 71.06ms. Allocated memory is still 402.7MB. Free memory was 148.6MB in the beginning and 145.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 56 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 42.9s, OverallIterations: 28, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 21.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3888 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3888 mSDsluCounter, 2984 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2206 mSDsCounter, 219 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4841 IncrementalHoareTripleChecker+Invalid, 5060 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 219 mSolverCounterUnsat, 778 mSDtfsCounter, 4841 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2081 GetRequests, 1580 SyntacticMatches, 14 SemanticMatches, 487 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4286 ImplicationChecksByTransitivity, 6.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=234occurred in iteration=27, InterpolantAutomatonStates: 368, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 28 MinimizatonAttempts, 702 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 52 NumberOfFragments, 719 HoareAnnotationTreeSize, 6 FomulaSimplifications, 4091 FormulaSimplificationTreeSizeReduction, 18.9s HoareSimplificationTime, 6 FomulaSimplificationsInter, 413932 FormulaSimplificationTreeSizeReductionInter, 2.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 2062 NumberOfCodeBlocks, 1770 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 2794 ConstructedInterpolants, 0 QuantifiedInterpolants, 8466 SizeOfPredicates, 69 NumberOfNonLiveVariables, 1375 ConjunctsInSsa, 103 ConjunctsInUnsatCore, 56 InterpolantComputations, 16 PerfectInterpolantSequences, 1366/3182 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (((((((i == 0 && l < 1000000) && 0 <= 999999 + n) && m <= 999999) && 0 <= 1999998 + l + m) && 0 <= 999999 + m) && 3 * n <= 1999998) || (((((((((((k < 2147483647 && j < 2147483647) && l < 1000000) && 0 <= 999999 + n) && 2 <= j) && 0 <= 1999998 + l + m) && 2 <= i) && 0 <= 999999 + m) && 3 * n <= 1999998) && 1 <= k) && i < 715827882) && m < 1000000)) || (((((((((1 <= i && l < 1000000) && 0 < 2147483650 + j) && 0 <= 999999 + n) && m <= 999999) && 0 <= 1999998 + l + m) && j <= 2) && 0 <= 999999 + m) && 3 * n <= 1999998) && i <= 1) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((((((((((((((l + m <= 1999998 && i < 1073741823) && 1 <= i) && l < 1000000) && j + 1 <= 3 * i) && 2 + k <= j) && n <= 999999) && 0 <= 999999 + n) && i <= k) && 0 <= 1999998 + l + m) && 0 <= 999999 + m) && i <= 666665) && 3 * n <= 1999998) && m < 1000000) || (((((((((((((l + m <= 1999998 && i < 1073741823) && 1 <= i) && l < 1000000) && j + 1 <= 3 * i) && n <= 999999) && 0 <= 999999 + n) && 0 <= 1999998 + l + m) && 0 <= 999999 + m) && i + 1 <= k) && i <= 666665) && 3 * n <= 1999998) && k < j) && m < 1000000)) || ((((((((((l < 1000000 && 0 <= 999999 + n) && 0 <= 1999998 + l + m) && j <= 2) && 0 <= 999999 + m) && k <= i) && 3 * n <= 1999998) && 1 <= k) && i <= 1) && k < j) && m < 1000000) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: ((((((((((((l < 1000000 && 0 <= 999999 + n) && m <= 999999) && 0 <= 1999998 + l + m) && j <= 2) && 0 <= 999999 + m) && k <= i) && 3 * n <= 1999998) && 1 <= k) && i <= 1) && k < j) || (((((((((l < 1000000 && j + 1 <= 3 * i) && 2 + k <= j) && 0 <= 999999 + n) && i <= k) && 0 <= 1999998 + l + m) && 0 <= 999999 + m) && i <= 666665) && 3 * n <= 1999998) && m < 1000000)) || (((((((((l < 1000000 && 0 <= 999999 + n) && 2 <= j) && j <= k) && 0 <= 1999998 + l + m) && 0 <= 999999 + m) && 3 * n <= 1999998) && k <= i + 1) && i <= 1) && m < 1000000)) || ((((((((((k < 2147483647 && 2 + i <= j) && l < 1000000) && 0 <= 999999 + n) && j < 3 * i) && 0 <= 1999998 + l + m) && 0 <= 999999 + m) && i + 1 <= k) && i <= 666665) && 3 * n <= 1999998) && m < 1000000) - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: n <= 999999 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (((((((((((i == 0 && 2 * i <= j) && l < 1000000) && j <= 2 * i) && 0 <= 999999 + n) && 0 <= 1999998 + l + m) && 0 <= 999999 + m) && 3 * n <= 1999998) && m < 1000000) || ((((((((((((l + m <= 1999998 && k < 2147483647) && 2 * i <= j) && l < 1000000) && j <= 2 * i) && 0 <= 999999 + n) && 0 <= 1999998 + l + m) && 2 <= i) && 0 <= 999999 + m) && i <= 666665) && 3 * n <= 1999998) && 1 <= k) && m < 1000000)) || ((((((((((((l + m <= 1999998 && k < 2147483647) && j < 2147483647) && 2 + i <= j) && l < 1000000) && 0 <= 999999 + n) && i <= k) && 0 <= 1999998 + l + m) && 2 <= i) && 0 <= 999999 + m) && i <= 666665) && 3 * n <= 1999998) && m < 1000000)) || ((((((((((l + m <= 1999998 && 1 <= i) && l < 1000000) && 0 <= 999999 + n) && 2 <= j) && 0 <= 1999998 + l + m) && j <= 2) && 0 <= 999999 + m) && 3 * n <= 1999998) && i <= 1) && m < 1000000)) || ((((((((((((l + m <= 1999998 && 1 <= i) && l < 1000000) && 0 <= 999999 + n) && 2 <= j) && j <= 3 + i) && 0 <= 1999998 + l + m) && 0 <= 999999 + m) && 3 * n <= 1999998) && 1 <= k) && k <= i + 1) && i <= 1) && m < 1000000) - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-20 10:31:12,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d7de0b8-b45c-4012-bc65-ad34e89cab8d/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE