./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/NonTermination4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/NonTermination4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a --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 64bit --witnessprinter.graph.data.programhash 737f9e8de77d32d8f03e01ab5f98ec0cb28ec6478e68b10a65bdf5d745ac7455 --- 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-b5237d8 [2022-11-21 13:54:36,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 13:54:36,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 13:54:36,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 13:54:36,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 13:54:36,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 13:54:36,196 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 13:54:36,198 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 13:54:36,200 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 13:54:36,201 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 13:54:36,202 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 13:54:36,203 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 13:54:36,203 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 13:54:36,205 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 13:54:36,206 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 13:54:36,207 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 13:54:36,208 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 13:54:36,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 13:54:36,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 13:54:36,212 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 13:54:36,214 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 13:54:36,215 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 13:54:36,216 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 13:54:36,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 13:54:36,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 13:54:36,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 13:54:36,221 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 13:54:36,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 13:54:36,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 13:54:36,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 13:54:36,225 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 13:54:36,225 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 13:54:36,226 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 13:54:36,227 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 13:54:36,228 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 13:54:36,229 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 13:54:36,229 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 13:54:36,230 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 13:54:36,230 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 13:54:36,231 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 13:54:36,232 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 13:54:36,233 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-21 13:54:36,255 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 13:54:36,256 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 13:54:36,256 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 13:54:36,256 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 13:54:36,257 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 13:54:36,258 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 13:54:36,258 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 13:54:36,259 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 13:54:36,259 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 13:54:36,259 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 13:54:36,259 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 13:54:36,260 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 13:54:36,260 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 13:54:36,260 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 13:54:36,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 13:54:36,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 13:54:36,261 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 13:54:36,261 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 13:54:36,261 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 13:54:36,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 13:54:36,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 13:54:36,262 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 13:54:36,262 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 13:54:36,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:54:36,262 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 13:54:36,263 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 13:54:36,263 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 13:54:36,263 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 13:54:36,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 13:54:36,264 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 13:54:36,264 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 13:54:36,264 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 13:54:36,264 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_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 737f9e8de77d32d8f03e01ab5f98ec0cb28ec6478e68b10a65bdf5d745ac7455 [2022-11-21 13:54:36,571 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 13:54:36,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 13:54:36,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 13:54:36,598 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 13:54:36,598 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 13:54:36,600 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/termination-crafted/NonTermination4.c [2022-11-21 13:54:39,743 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 13:54:39,981 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 13:54:39,981 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/sv-benchmarks/c/termination-crafted/NonTermination4.c [2022-11-21 13:54:39,987 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/data/fd8587a5c/f9025ef23a8c4a41a979bb9398ddceb1/FLAGeada2a526 [2022-11-21 13:54:40,017 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/data/fd8587a5c/f9025ef23a8c4a41a979bb9398ddceb1 [2022-11-21 13:54:40,020 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 13:54:40,022 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 13:54:40,023 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 13:54:40,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 13:54:40,029 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 13:54:40,029 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:54:40" (1/1) ... [2022-11-21 13:54:40,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e1cbdf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:54:40, skipping insertion in model container [2022-11-21 13:54:40,031 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:54:40" (1/1) ... [2022-11-21 13:54:40,039 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 13:54:40,054 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 13:54:40,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:54:40,197 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 13:54:40,209 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:54:40,224 INFO L208 MainTranslator]: Completed translation [2022-11-21 13:54:40,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:54:40 WrapperNode [2022-11-21 13:54:40,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 13:54:40,226 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 13:54:40,226 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 13:54:40,226 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 13:54:40,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:54:40" (1/1) ... [2022-11-21 13:54:40,239 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:54:40" (1/1) ... [2022-11-21 13:54:40,257 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2022-11-21 13:54:40,258 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 13:54:40,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 13:54:40,258 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 13:54:40,259 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 13:54:40,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:54:40" (1/1) ... [2022-11-21 13:54:40,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:54:40" (1/1) ... [2022-11-21 13:54:40,269 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:54:40" (1/1) ... [2022-11-21 13:54:40,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:54:40" (1/1) ... [2022-11-21 13:54:40,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:54:40" (1/1) ... [2022-11-21 13:54:40,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:54:40" (1/1) ... [2022-11-21 13:54:40,276 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:54:40" (1/1) ... [2022-11-21 13:54:40,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:54:40" (1/1) ... [2022-11-21 13:54:40,278 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 13:54:40,279 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 13:54:40,279 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 13:54:40,279 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 13:54:40,280 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:54:40" (1/1) ... [2022-11-21 13:54:40,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:54:40,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:54:40,316 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 13:54:40,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 13:54:40,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 13:54:40,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 13:54:40,469 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 13:54:40,471 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 13:54:40,607 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 13:54:40,619 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 13:54:40,622 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 13:54:40,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:54:40 BoogieIcfgContainer [2022-11-21 13:54:40,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 13:54:40,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 13:54:40,632 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 13:54:40,636 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 13:54:40,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:54:40" (1/3) ... [2022-11-21 13:54:40,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7421a6f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:54:40, skipping insertion in model container [2022-11-21 13:54:40,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:54:40" (2/3) ... [2022-11-21 13:54:40,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7421a6f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:54:40, skipping insertion in model container [2022-11-21 13:54:40,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:54:40" (3/3) ... [2022-11-21 13:54:40,642 INFO L112 eAbstractionObserver]: Analyzing ICFG NonTermination4.c [2022-11-21 13:54:40,665 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 13:54:40,666 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-21 13:54:40,751 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 13:54:40,760 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;@64ac15d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 13:54:40,760 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-21 13:54:40,765 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 10 states have (on average 1.6) internal successors, (16), 14 states have internal predecessors, (16), 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) [2022-11-21 13:54:40,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-21 13:54:40,780 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:54:40,780 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-21 13:54:40,781 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-21 13:54:40,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:54:40,792 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2022-11-21 13:54:40,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:54:40,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887800097] [2022-11-21 13:54:40,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:54:40,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:54:40,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:40,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:54:40,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:54:40,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887800097] [2022-11-21 13:54:40,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887800097] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:54:40,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:54:40,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:54:40,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877305995] [2022-11-21 13:54:40,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:54:40,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:54:40,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:54:41,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:54:41,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:54:41,011 INFO L87 Difference]: Start difference. First operand has 15 states, 10 states have (on average 1.6) internal successors, (16), 14 states have internal predecessors, (16), 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 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-21 13:54:41,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:54:41,053 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-11-21 13:54:41,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:54:41,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-11-21 13:54:41,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:54:41,066 INFO L225 Difference]: With dead ends: 23 [2022-11-21 13:54:41,066 INFO L226 Difference]: Without dead ends: 14 [2022-11-21 13:54:41,069 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 [2022-11-21 13:54:41,085 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 6 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 13:54:41,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 15 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 13:54:41,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-21 13:54:41,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2022-11-21 13:54:41,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 12 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) [2022-11-21 13:54:41,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-11-21 13:54:41,163 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 4 [2022-11-21 13:54:41,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:54:41,174 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2022-11-21 13:54:41,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-21 13:54:41,175 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-11-21 13:54:41,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-21 13:54:41,176 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:54:41,176 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-21 13:54:41,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 13:54:41,177 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-21 13:54:41,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:54:41,178 INFO L85 PathProgramCache]: Analyzing trace with hash 28699721, now seen corresponding path program 1 times [2022-11-21 13:54:41,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:54:41,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668561071] [2022-11-21 13:54:41,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:54:41,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:54:41,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:41,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:54:41,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:54:41,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668561071] [2022-11-21 13:54:41,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668561071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:54:41,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:54:41,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:54:41,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749037954] [2022-11-21 13:54:41,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:54:41,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:54:41,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:54:41,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:54:41,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:54:41,234 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-11-21 13:54:41,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:54:41,246 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-11-21 13:54:41,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:54:41,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2022-11-21 13:54:41,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:54:41,248 INFO L225 Difference]: With dead ends: 13 [2022-11-21 13:54:41,248 INFO L226 Difference]: Without dead ends: 12 [2022-11-21 13:54:41,249 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 [2022-11-21 13:54:41,251 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 5 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 13:54:41,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 7 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 13:54:41,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-11-21 13:54:41,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-21 13:54:41,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 11 states have internal predecessors, (12), 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) [2022-11-21 13:54:41,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-21 13:54:41,256 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 5 [2022-11-21 13:54:41,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:54:41,257 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-21 13:54:41,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-11-21 13:54:41,258 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-21 13:54:41,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-21 13:54:41,258 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:54:41,258 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-21 13:54:41,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 13:54:41,259 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-21 13:54:41,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:54:41,260 INFO L85 PathProgramCache]: Analyzing trace with hash 889691398, now seen corresponding path program 1 times [2022-11-21 13:54:41,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:54:41,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093034767] [2022-11-21 13:54:41,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:54:41,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:54:41,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:41,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:54:41,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:54:41,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093034767] [2022-11-21 13:54:41,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093034767] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:54:41,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:54:41,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:54:41,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57214334] [2022-11-21 13:54:41,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:54:41,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:54:41,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:54:41,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:54:41,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:54:41,304 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. 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) [2022-11-21 13:54:41,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:54:41,320 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2022-11-21 13:54:41,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:54:41,321 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 [2022-11-21 13:54:41,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:54:41,322 INFO L225 Difference]: With dead ends: 16 [2022-11-21 13:54:41,322 INFO L226 Difference]: Without dead ends: 15 [2022-11-21 13:54:41,323 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 [2022-11-21 13:54:41,324 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 2 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 13:54:41,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 12 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 13:54:41,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-21 13:54:41,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2022-11-21 13:54:41,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:54:41,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-11-21 13:54:41,334 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 6 [2022-11-21 13:54:41,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:54:41,335 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-11-21 13:54:41,335 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) [2022-11-21 13:54:41,335 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-11-21 13:54:41,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-21 13:54:41,336 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:54:41,336 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:54:41,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 13:54:41,337 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-21 13:54:41,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:54:41,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1810629611, now seen corresponding path program 1 times [2022-11-21 13:54:41,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:54:41,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779605510] [2022-11-21 13:54:41,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:54:41,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:54:41,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:41,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:54:41,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:54:41,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779605510] [2022-11-21 13:54:41,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779605510] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:54:41,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:54:41,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:54:41,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019304619] [2022-11-21 13:54:41,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:54:41,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:54:41,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:54:41,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:54:41,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:54:41,384 INFO L87 Difference]: Start difference. First operand 14 states and 14 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) [2022-11-21 13:54:41,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:54:41,394 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2022-11-21 13:54:41,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:54:41,395 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 [2022-11-21 13:54:41,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:54:41,395 INFO L225 Difference]: With dead ends: 14 [2022-11-21 13:54:41,396 INFO L226 Difference]: Without dead ends: 13 [2022-11-21 13:54:41,396 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 [2022-11-21 13:54:41,398 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 13:54:41,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 7 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 13:54:41,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-11-21 13:54:41,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-11-21 13:54:41,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 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) [2022-11-21 13:54:41,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-11-21 13:54:41,404 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2022-11-21 13:54:41,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:54:41,406 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2022-11-21 13:54:41,406 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) [2022-11-21 13:54:41,407 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-11-21 13:54:41,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-21 13:54:41,407 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:54:41,408 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:54:41,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 13:54:41,408 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-21 13:54:41,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:54:41,409 INFO L85 PathProgramCache]: Analyzing trace with hash 553302605, now seen corresponding path program 1 times [2022-11-21 13:54:41,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:54:41,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46547033] [2022-11-21 13:54:41,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:54:41,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:54:41,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:41,538 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:54:41,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:54:41,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46547033] [2022-11-21 13:54:41,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46547033] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 13:54:41,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204230099] [2022-11-21 13:54:41,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:54:41,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:54:41,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:54:41,584 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:54:41,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 13:54:41,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:41,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 13:54:41,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:54:41,716 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:54:41,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 13:54:41,779 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:54:41,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204230099] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 13:54:41,779 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 13:54:41,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-21 13:54:41,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36718103] [2022-11-21 13:54:41,784 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 13:54:41,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:54:41,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:54:41,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:54:41,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:54:41,787 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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) [2022-11-21 13:54:41,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:54:41,854 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2022-11-21 13:54:41,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 13:54:41,855 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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 [2022-11-21 13:54:41,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:54:41,857 INFO L225 Difference]: With dead ends: 29 [2022-11-21 13:54:41,857 INFO L226 Difference]: Without dead ends: 28 [2022-11-21 13:54:41,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:54:41,865 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 10 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 13:54:41,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 20 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 13:54:41,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-21 13:54:41,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2022-11-21 13:54:41,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 25 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:54:41,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2022-11-21 13:54:41,873 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 9 [2022-11-21 13:54:41,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:54:41,874 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2022-11-21 13:54:41,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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) [2022-11-21 13:54:41,874 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2022-11-21 13:54:41,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-21 13:54:41,874 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:54:41,874 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-11-21 13:54:41,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 13:54:42,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:54:42,075 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-21 13:54:42,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:54:42,078 INFO L85 PathProgramCache]: Analyzing trace with hash -852139857, now seen corresponding path program 1 times [2022-11-21 13:54:42,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:54:42,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359642912] [2022-11-21 13:54:42,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:54:42,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:54:42,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:42,191 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:54:42,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:54:42,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359642912] [2022-11-21 13:54:42,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359642912] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 13:54:42,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155957051] [2022-11-21 13:54:42,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:54:42,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:54:42,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:54:42,199 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:54:42,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 13:54:42,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:42,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 13:54:42,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:54:42,280 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:54:42,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 13:54:42,355 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:54:42,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [155957051] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 13:54:42,355 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 13:54:42,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-21 13:54:42,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757891206] [2022-11-21 13:54:42,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 13:54:42,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:54:42,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:54:42,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:54:42,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:54:42,357 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 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) [2022-11-21 13:54:42,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:54:42,414 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2022-11-21 13:54:42,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 13:54:42,415 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 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 11 [2022-11-21 13:54:42,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:54:42,416 INFO L225 Difference]: With dead ends: 29 [2022-11-21 13:54:42,416 INFO L226 Difference]: Without dead ends: 28 [2022-11-21 13:54:42,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:54:42,418 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 6 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 13:54:42,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 21 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 13:54:42,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-21 13:54:42,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-11-21 13:54:42,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 26 states have (on average 1.0769230769230769) internal successors, (28), 27 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:54:42,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2022-11-21 13:54:42,426 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 11 [2022-11-21 13:54:42,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:54:42,426 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2022-11-21 13:54:42,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 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) [2022-11-21 13:54:42,426 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2022-11-21 13:54:42,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-21 13:54:42,427 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:54:42,427 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 1, 1, 1] [2022-11-21 13:54:42,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-21 13:54:42,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-21 13:54:42,639 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-21 13:54:42,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:54:42,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1484270500, now seen corresponding path program 2 times [2022-11-21 13:54:42,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:54:42,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376009551] [2022-11-21 13:54:42,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:54:42,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:54:42,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:42,861 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:54:42,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:54:42,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376009551] [2022-11-21 13:54:42,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376009551] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 13:54:42,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779806915] [2022-11-21 13:54:42,864 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 13:54:42,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:54:42,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:54:42,866 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:54:42,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-21 13:54:42,933 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 13:54:42,934 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 13:54:42,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 13:54:42,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:54:43,035 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:54:43,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 13:54:43,180 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:54:43,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779806915] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 13:54:43,181 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 13:54:43,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-21 13:54:43,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092464296] [2022-11-21 13:54:43,181 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 13:54:43,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 13:54:43,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:54:43,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 13:54:43,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-21 13:54:43,183 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 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) [2022-11-21 13:54:43,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:54:43,287 INFO L93 Difference]: Finished difference Result 62 states and 67 transitions. [2022-11-21 13:54:43,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 13:54:43,288 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 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) Word has length 24 [2022-11-21 13:54:43,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:54:43,289 INFO L225 Difference]: With dead ends: 62 [2022-11-21 13:54:43,289 INFO L226 Difference]: Without dead ends: 61 [2022-11-21 13:54:43,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-21 13:54:43,291 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 36 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 13:54:43,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 33 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 13:54:43,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-21 13:54:43,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 56. [2022-11-21 13:54:43,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 54 states have (on average 1.1296296296296295) internal successors, (61), 55 states have internal predecessors, (61), 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) [2022-11-21 13:54:43,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 61 transitions. [2022-11-21 13:54:43,302 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 61 transitions. Word has length 24 [2022-11-21 13:54:43,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:54:43,303 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 61 transitions. [2022-11-21 13:54:43,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 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) [2022-11-21 13:54:43,303 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 61 transitions. [2022-11-21 13:54:43,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-21 13:54:43,304 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:54:43,304 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1] [2022-11-21 13:54:43,311 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-21 13:54:43,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:54:43,505 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-21 13:54:43,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:54:43,506 INFO L85 PathProgramCache]: Analyzing trace with hash 454809670, now seen corresponding path program 2 times [2022-11-21 13:54:43,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:54:43,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206226830] [2022-11-21 13:54:43,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:54:43,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:54:43,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:43,639 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:54:43,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:54:43,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206226830] [2022-11-21 13:54:43,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206226830] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 13:54:43,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048767738] [2022-11-21 13:54:43,640 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 13:54:43,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:54:43,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:54:43,643 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:54:43,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-21 13:54:43,687 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 13:54:43,688 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 13:54:43,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 13:54:43,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:54:43,748 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:54:43,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 13:54:43,869 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:54:43,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1048767738] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 13:54:43,870 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 13:54:43,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-21 13:54:43,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643601133] [2022-11-21 13:54:43,871 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 13:54:43,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 13:54:43,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:54:43,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 13:54:43,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-21 13:54:43,873 INFO L87 Difference]: Start difference. First operand 56 states and 61 transitions. Second operand has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 12 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) [2022-11-21 13:54:43,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:54:43,939 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2022-11-21 13:54:43,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 13:54:43,939 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 12 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) Word has length 26 [2022-11-21 13:54:43,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:54:43,941 INFO L225 Difference]: With dead ends: 59 [2022-11-21 13:54:43,941 INFO L226 Difference]: Without dead ends: 58 [2022-11-21 13:54:43,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-21 13:54:43,965 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 15 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 13:54:43,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 43 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 13:54:43,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-21 13:54:43,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-11-21 13:54:43,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 56 states have (on average 1.0357142857142858) internal successors, (58), 57 states have internal predecessors, (58), 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) [2022-11-21 13:54:43,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2022-11-21 13:54:43,977 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 26 [2022-11-21 13:54:43,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:54:43,978 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2022-11-21 13:54:43,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 12 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) [2022-11-21 13:54:43,978 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2022-11-21 13:54:43,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-21 13:54:43,980 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:54:43,980 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 1, 1, 1] [2022-11-21 13:54:43,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-21 13:54:44,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:54:44,186 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-21 13:54:44,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:54:44,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1025163396, now seen corresponding path program 3 times [2022-11-21 13:54:44,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:54:44,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441148373] [2022-11-21 13:54:44,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:54:44,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:54:44,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:44,528 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:54:44,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:54:44,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441148373] [2022-11-21 13:54:44,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441148373] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 13:54:44,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533834003] [2022-11-21 13:54:44,530 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-21 13:54:44,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:54:44,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:54:44,532 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:54:44,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-21 13:54:44,613 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-21 13:54:44,614 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 13:54:44,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-21 13:54:44,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:54:44,759 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:54:44,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 13:54:45,169 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:54:45,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [533834003] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 13:54:45,170 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 13:54:45,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-11-21 13:54:45,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794410899] [2022-11-21 13:54:45,171 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 13:54:45,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-21 13:54:45,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:54:45,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-21 13:54:45,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-21 13:54:45,177 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand has 24 states, 23 states have (on average 4.6521739130434785) internal successors, (107), 24 states have internal predecessors, (107), 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) [2022-11-21 13:54:45,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:54:45,328 INFO L93 Difference]: Finished difference Result 128 states and 139 transitions. [2022-11-21 13:54:45,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-21 13:54:45,331 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.6521739130434785) internal successors, (107), 24 states have internal predecessors, (107), 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 54 [2022-11-21 13:54:45,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:54:45,339 INFO L225 Difference]: With dead ends: 128 [2022-11-21 13:54:45,339 INFO L226 Difference]: Without dead ends: 127 [2022-11-21 13:54:45,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-21 13:54:45,344 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 72 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 13:54:45,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 64 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 13:54:45,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-11-21 13:54:45,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 116. [2022-11-21 13:54:45,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 114 states have (on average 1.1140350877192982) internal successors, (127), 115 states have internal predecessors, (127), 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) [2022-11-21 13:54:45,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 127 transitions. [2022-11-21 13:54:45,374 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 127 transitions. Word has length 54 [2022-11-21 13:54:45,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:54:45,378 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 127 transitions. [2022-11-21 13:54:45,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.6521739130434785) internal successors, (107), 24 states have internal predecessors, (107), 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) [2022-11-21 13:54:45,379 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 127 transitions. [2022-11-21 13:54:45,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-21 13:54:45,382 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:54:45,383 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 1, 1, 1] [2022-11-21 13:54:45,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-21 13:54:45,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-21 13:54:45,590 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-21 13:54:45,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:54:45,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1634514214, now seen corresponding path program 3 times [2022-11-21 13:54:45,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:54:45,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309853442] [2022-11-21 13:54:45,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:54:45,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:54:45,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:45,824 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:54:45,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:54:45,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309853442] [2022-11-21 13:54:45,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309853442] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 13:54:45,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493747250] [2022-11-21 13:54:45,825 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-21 13:54:45,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:54:45,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:54:45,831 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:54:45,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-21 13:54:45,884 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-21 13:54:45,884 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 13:54:45,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-21 13:54:45,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:54:45,987 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:54:45,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 13:54:46,265 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:54:46,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493747250] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 13:54:46,266 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 13:54:46,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-11-21 13:54:46,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816708533] [2022-11-21 13:54:46,266 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 13:54:46,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-21 13:54:46,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:54:46,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-21 13:54:46,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-21 13:54:46,268 INFO L87 Difference]: Start difference. First operand 116 states and 127 transitions. Second operand has 24 states, 23 states have (on average 4.826086956521739) internal successors, (111), 24 states have internal predecessors, (111), 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) [2022-11-21 13:54:46,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:54:46,364 INFO L93 Difference]: Finished difference Result 117 states and 127 transitions. [2022-11-21 13:54:46,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-21 13:54:46,365 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.826086956521739) internal successors, (111), 24 states have internal predecessors, (111), 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 56 [2022-11-21 13:54:46,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:54:46,366 INFO L225 Difference]: With dead ends: 117 [2022-11-21 13:54:46,366 INFO L226 Difference]: Without dead ends: 116 [2022-11-21 13:54:46,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-11-21 13:54:46,368 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 30 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 13:54:46,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 78 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 13:54:46,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-11-21 13:54:46,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2022-11-21 13:54:46,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 114 states have (on average 1.0350877192982457) internal successors, (118), 115 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) [2022-11-21 13:54:46,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 118 transitions. [2022-11-21 13:54:46,379 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 118 transitions. Word has length 56 [2022-11-21 13:54:46,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:54:46,380 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 118 transitions. [2022-11-21 13:54:46,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.826086956521739) internal successors, (111), 24 states have internal predecessors, (111), 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) [2022-11-21 13:54:46,380 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 118 transitions. [2022-11-21 13:54:46,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-21 13:54:46,382 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:54:46,383 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 19, 19, 1, 1, 1] [2022-11-21 13:54:46,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-21 13:54:46,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-21 13:54:46,589 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-21 13:54:46,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:54:46,590 INFO L85 PathProgramCache]: Analyzing trace with hash 731952655, now seen corresponding path program 4 times [2022-11-21 13:54:46,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:54:46,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488129654] [2022-11-21 13:54:46,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:54:46,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:54:46,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:54:46,620 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:54:46,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:54:46,681 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:54:46,682 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 13:54:46,683 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-21 13:54:46,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-21 13:54:46,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-21 13:54:46,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-21 13:54:46,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 13:54:46,692 INFO L444 BasicCegarLoop]: Path program histogram: [4, 3, 1, 1, 1, 1] [2022-11-21 13:54:46,698 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 13:54:46,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 01:54:46 BoogieIcfgContainer [2022-11-21 13:54:46,751 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 13:54:46,751 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 13:54:46,751 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 13:54:46,752 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 13:54:46,752 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:54:40" (3/4) ... [2022-11-21 13:54:46,753 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-21 13:54:46,811 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 13:54:46,811 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 13:54:46,812 INFO L158 Benchmark]: Toolchain (without parser) took 6790.24ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 120.0MB in the beginning and 93.4MB in the end (delta: 26.6MB). Peak memory consumption was 59.8MB. Max. memory is 16.1GB. [2022-11-21 13:54:46,812 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 107.0MB. Free memory is still 62.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:54:46,812 INFO L158 Benchmark]: CACSL2BoogieTranslator took 201.56ms. Allocated memory is still 148.9MB. Free memory was 120.0MB in the beginning and 110.8MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 13:54:46,813 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.03ms. Allocated memory is still 148.9MB. Free memory was 110.8MB in the beginning and 109.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:54:46,813 INFO L158 Benchmark]: Boogie Preprocessor took 19.73ms. Allocated memory is still 148.9MB. Free memory was 109.3MB in the beginning and 108.3MB in the end (delta: 980.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 13:54:46,813 INFO L158 Benchmark]: RCFGBuilder took 349.20ms. Allocated memory is still 148.9MB. Free memory was 108.3MB in the beginning and 99.5MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-21 13:54:46,814 INFO L158 Benchmark]: TraceAbstraction took 6120.34ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 99.1MB in the beginning and 96.6MB in the end (delta: 2.5MB). Peak memory consumption was 36.7MB. Max. memory is 16.1GB. [2022-11-21 13:54:46,814 INFO L158 Benchmark]: Witness Printer took 59.63ms. Allocated memory is still 180.4MB. Free memory was 96.6MB in the beginning and 93.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 13:54:46,816 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 107.0MB. Free memory is still 62.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 201.56ms. Allocated memory is still 148.9MB. Free memory was 120.0MB in the beginning and 110.8MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.03ms. Allocated memory is still 148.9MB. Free memory was 110.8MB in the beginning and 109.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.73ms. Allocated memory is still 148.9MB. Free memory was 109.3MB in the beginning and 108.3MB in the end (delta: 980.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 349.20ms. Allocated memory is still 148.9MB. Free memory was 108.3MB in the beginning and 99.5MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 6120.34ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 99.1MB in the beginning and 96.6MB in the end (delta: 2.5MB). Peak memory consumption was 36.7MB. Max. memory is 16.1GB. * Witness Printer took 59.63ms. Allocated memory is still 180.4MB. Free memory was 96.6MB in the beginning and 93.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. 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 - CounterExampleResult [Line: 20]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int x, y; [L16] x = 1 [L17] y = 1 VAL [x=1, y=1] [L18] COND TRUE x >= 0 VAL [x=1, y=1] [L19] EXPR 2*x [L19] x = 2*x VAL [x=2, y=1] [L20] EXPR 3*y [L20] y = 3*y VAL [x=2, y=3] [L18] COND TRUE x >= 0 VAL [x=2, y=3] [L19] EXPR 2*x [L19] x = 2*x VAL [x=4, y=3] [L20] EXPR 3*y [L20] y = 3*y VAL [x=4, y=9] [L18] COND TRUE x >= 0 VAL [x=4, y=9] [L19] EXPR 2*x [L19] x = 2*x VAL [x=8, y=9] [L20] EXPR 3*y [L20] y = 3*y VAL [x=8, y=27] [L18] COND TRUE x >= 0 VAL [x=8, y=27] [L19] EXPR 2*x [L19] x = 2*x VAL [x=16, y=27] [L20] EXPR 3*y [L20] y = 3*y VAL [x=16, y=81] [L18] COND TRUE x >= 0 VAL [x=16, y=81] [L19] EXPR 2*x [L19] x = 2*x VAL [x=32, y=81] [L20] EXPR 3*y [L20] y = 3*y VAL [x=32, y=243] [L18] COND TRUE x >= 0 VAL [x=32, y=243] [L19] EXPR 2*x [L19] x = 2*x VAL [x=64, y=243] [L20] EXPR 3*y [L20] y = 3*y VAL [x=64, y=729] [L18] COND TRUE x >= 0 VAL [x=64, y=729] [L19] EXPR 2*x [L19] x = 2*x VAL [x=128, y=729] [L20] EXPR 3*y [L20] y = 3*y VAL [x=128, y=2187] [L18] COND TRUE x >= 0 VAL [x=128, y=2187] [L19] EXPR 2*x [L19] x = 2*x VAL [x=256, y=2187] [L20] EXPR 3*y [L20] y = 3*y VAL [x=256, y=6561] [L18] COND TRUE x >= 0 VAL [x=256, y=6561] [L19] EXPR 2*x [L19] x = 2*x VAL [x=512, y=6561] [L20] EXPR 3*y [L20] y = 3*y VAL [x=512, y=19683] [L18] COND TRUE x >= 0 VAL [x=512, y=19683] [L19] EXPR 2*x [L19] x = 2*x VAL [x=1024, y=19683] [L20] EXPR 3*y [L20] y = 3*y VAL [x=1024, y=59049] [L18] COND TRUE x >= 0 VAL [x=1024, y=59049] [L19] EXPR 2*x [L19] x = 2*x VAL [x=2048, y=59049] [L20] EXPR 3*y [L20] y = 3*y VAL [x=2048, y=177147] [L18] COND TRUE x >= 0 VAL [x=2048, y=177147] [L19] EXPR 2*x [L19] x = 2*x VAL [x=4096, y=177147] [L20] EXPR 3*y [L20] y = 3*y VAL [x=4096, y=531441] [L18] COND TRUE x >= 0 VAL [x=4096, y=531441] [L19] EXPR 2*x [L19] x = 2*x VAL [x=8192, y=531441] [L20] EXPR 3*y [L20] y = 3*y VAL [x=8192, y=1594323] [L18] COND TRUE x >= 0 VAL [x=8192, y=1594323] [L19] EXPR 2*x [L19] x = 2*x VAL [x=16384, y=1594323] [L20] EXPR 3*y [L20] y = 3*y VAL [x=16384, y=4782969] [L18] COND TRUE x >= 0 VAL [x=16384, y=4782969] [L19] EXPR 2*x [L19] x = 2*x VAL [x=32768, y=4782969] [L20] EXPR 3*y [L20] y = 3*y VAL [x=32768, y=14348907] [L18] COND TRUE x >= 0 VAL [x=32768, y=14348907] [L19] EXPR 2*x [L19] x = 2*x VAL [x=65536, y=14348907] [L20] EXPR 3*y [L20] y = 3*y VAL [x=65536, y=43046721] [L18] COND TRUE x >= 0 VAL [x=65536, y=43046721] [L19] EXPR 2*x [L19] x = 2*x VAL [x=131072, y=43046721] [L20] EXPR 3*y [L20] y = 3*y VAL [x=131072, y=129140163] [L18] COND TRUE x >= 0 VAL [x=131072, y=129140163] [L19] EXPR 2*x [L19] x = 2*x VAL [x=262144, y=129140163] [L20] EXPR 3*y [L20] y = 3*y VAL [x=262144, y=387420489] [L18] COND TRUE x >= 0 VAL [x=262144, y=387420489] [L19] EXPR 2*x [L19] x = 2*x VAL [x=524288, y=387420489] [L20] EXPR 3*y [L20] y = 3*y VAL [x=524288, y=1162261467] [L18] COND TRUE x >= 0 VAL [x=524288, y=1162261467] [L19] EXPR 2*x [L19] x = 2*x VAL [x=1048576, y=1162261467] [L20] 3*y VAL [x=1048576, y=1162261467] - UnprovableResult [Line: 19]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 20]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 6.0s, OverallIterations: 11, TraceHistogramMax: 20, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 184 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 184 mSDsluCounter, 300 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 232 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 223 IncrementalHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 68 mSDtfsCounter, 223 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 398 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=116occurred in iteration=9, InterpolantAutomatonStates: 93, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 20 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 483 NumberOfCodeBlocks, 483 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 540 ConstructedInterpolants, 0 QuantifiedInterpolants, 1912 SizeOfPredicates, 0 NumberOfNonLiveVariables, 336 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 22 InterpolantComputations, 4 PerfectInterpolantSequences, 0/1800 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-21 13:54:46,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16522b2f-e91d-4787-8224-1b7634260736/bin/uautomizer-vX5HgA9Q3a/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)