./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/xcsp/AllInterval-008.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/xcsp/AllInterval-008.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8f1a1519dc3ac954bb27ae35f40dd4ee3500f707e2df097fc14441b899353328 --- 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 [2022-11-22 01:43:40,149 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:43:40,152 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:43:40,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:43:40,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:43:40,199 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:43:40,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:43:40,205 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:43:40,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:43:40,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:43:40,213 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:43:40,215 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:43:40,216 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:43:40,218 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:43:40,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:43:40,222 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:43:40,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:43:40,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:43:40,226 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:43:40,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:43:40,235 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:43:40,237 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:43:40,238 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:43:40,239 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:43:40,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:43:40,250 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:43:40,251 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:43:40,252 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:43:40,253 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:43:40,254 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:43:40,255 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:43:40,255 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:43:40,257 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:43:40,260 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:43:40,261 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:43:40,261 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:43:40,262 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:43:40,262 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:43:40,262 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:43:40,264 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:43:40,265 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:43:40,266 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 01:43:40,301 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:43:40,301 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:43:40,302 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:43:40,302 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:43:40,303 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:43:40,303 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:43:40,303 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:43:40,303 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:43:40,303 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:43:40,304 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:43:40,305 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:43:40,305 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:43:40,305 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:43:40,305 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:43:40,306 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:43:40,306 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:43:40,306 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:43:40,306 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:43:40,307 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:43:40,307 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:43:40,307 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:43:40,308 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:43:40,308 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:43:40,308 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:43:40,308 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:43:40,308 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:43:40,309 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:43:40,309 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 01:43:40,309 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:43:40,310 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:43:40,310 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:43:40,310 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:43:40,310 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:43:40,311 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:43:40,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:43:40,311 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:43:40,311 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:43:40,311 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:43:40,312 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:43:40,312 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:43:40,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:43:40,312 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:43:40,313 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:43:40,313 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_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f1a1519dc3ac954bb27ae35f40dd4ee3500f707e2df097fc14441b899353328 [2022-11-22 01:43:40,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:43:40,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:43:40,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:43:40,592 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:43:40,592 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:43:40,593 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/xcsp/AllInterval-008.c [2022-11-22 01:43:43,642 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:43:43,814 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:43:43,815 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/sv-benchmarks/c/xcsp/AllInterval-008.c [2022-11-22 01:43:43,822 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/data/71eca59ec/1e7933fa908e456092ac7744c9e47b29/FLAGf4cec4caa [2022-11-22 01:43:43,846 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/data/71eca59ec/1e7933fa908e456092ac7744c9e47b29 [2022-11-22 01:43:43,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:43:43,855 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:43:43,858 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:43:43,862 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:43:43,866 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:43:43,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:43:43" (1/1) ... [2022-11-22 01:43:43,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30ac25b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:43, skipping insertion in model container [2022-11-22 01:43:43,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:43:43" (1/1) ... [2022-11-22 01:43:43,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:43:43,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:43:44,168 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/sv-benchmarks/c/xcsp/AllInterval-008.c[4334,4347] [2022-11-22 01:43:44,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:43:44,188 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:43:44,216 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/sv-benchmarks/c/xcsp/AllInterval-008.c[4334,4347] [2022-11-22 01:43:44,217 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:43:44,231 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:43:44,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:44 WrapperNode [2022-11-22 01:43:44,231 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:43:44,232 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:43:44,233 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:43:44,233 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:43:44,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:44" (1/1) ... [2022-11-22 01:43:44,249 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:44" (1/1) ... [2022-11-22 01:43:44,275 INFO L138 Inliner]: procedures = 13, calls = 93, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 234 [2022-11-22 01:43:44,275 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:43:44,276 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:43:44,276 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:43:44,277 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:43:44,287 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:44" (1/1) ... [2022-11-22 01:43:44,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:44" (1/1) ... [2022-11-22 01:43:44,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:44" (1/1) ... [2022-11-22 01:43:44,291 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:44" (1/1) ... [2022-11-22 01:43:44,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:44" (1/1) ... [2022-11-22 01:43:44,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:44" (1/1) ... [2022-11-22 01:43:44,316 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:44" (1/1) ... [2022-11-22 01:43:44,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:44" (1/1) ... [2022-11-22 01:43:44,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:43:44,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:43:44,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:43:44,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:43:44,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:44" (1/1) ... [2022-11-22 01:43:44,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:43:44,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:43:44,364 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:43:44,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:43:44,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:43:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:43:44,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:43:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:43:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2022-11-22 01:43:44,405 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2022-11-22 01:43:44,479 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:43:44,481 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:43:44,840 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:43:44,870 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:43:44,870 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 01:43:44,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:43:44 BoogieIcfgContainer [2022-11-22 01:43:44,873 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:43:44,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:43:44,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:43:44,880 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:43:44,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:43:43" (1/3) ... [2022-11-22 01:43:44,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e358c5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:43:44, skipping insertion in model container [2022-11-22 01:43:44,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:44" (2/3) ... [2022-11-22 01:43:44,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e358c5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:43:44, skipping insertion in model container [2022-11-22 01:43:44,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:43:44" (3/3) ... [2022-11-22 01:43:44,883 INFO L112 eAbstractionObserver]: Analyzing ICFG AllInterval-008.c [2022-11-22 01:43:44,904 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:43:44,904 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-11-22 01:43:44,980 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:43:44,988 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@f807af5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:43:44,989 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2022-11-22 01:43:44,993 INFO L276 IsEmpty]: Start isEmpty. Operand has 177 states, 61 states have (on average 1.5737704918032787) internal successors, (96), 89 states have internal predecessors, (96), 86 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2022-11-22 01:43:45,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-11-22 01:43:45,010 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:43:45,011 INFO L195 NwaCegarLoop]: trace histogram [79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:43:45,012 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-22 01:43:45,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:43:45,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1511556133, now seen corresponding path program 1 times [2022-11-22 01:43:45,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:43:45,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591362493] [2022-11-22 01:43:45,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:43:45,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:43:45,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:43:46,462 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 2 proven. 76 refuted. 0 times theorem prover too weak. 6084 trivial. 0 not checked. [2022-11-22 01:43:46,466 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:43:46,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591362493] [2022-11-22 01:43:46,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591362493] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:43:46,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695418384] [2022-11-22 01:43:46,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:43:46,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:43:46,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:43:46,474 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:43:46,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:43:46,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:43:46,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-22 01:43:46,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:43:47,514 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 2 proven. 76 refuted. 0 times theorem prover too weak. 6084 trivial. 0 not checked. [2022-11-22 01:43:47,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:43:48,021 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 2 proven. 76 refuted. 0 times theorem prover too weak. 6084 trivial. 0 not checked. [2022-11-22 01:43:48,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695418384] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:43:48,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [143054049] [2022-11-22 01:43:48,073 INFO L159 IcfgInterpreter]: Started Sifa with 100 locations of interest [2022-11-22 01:43:48,073 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:43:48,082 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:43:48,110 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:43:48,111 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:44:17,096 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-11-22 01:44:17,098 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:45:50,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [143054049] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:45:50,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:45:50,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [97] imperfect sequences [5, 4, 4] total 104 [2022-11-22 01:45:50,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938886331] [2022-11-22 01:45:50,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:45:50,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2022-11-22 01:45:50,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:45:50,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2022-11-22 01:45:50,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5238, Invalid=5682, Unknown=0, NotChecked=0, Total=10920 [2022-11-22 01:45:50,679 INFO L87 Difference]: Start difference. First operand has 177 states, 61 states have (on average 1.5737704918032787) internal successors, (96), 89 states have internal predecessors, (96), 86 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) Second operand has 99 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 19 states have internal predecessors, (19), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2022-11-22 01:45:54,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:45:54,212 INFO L93 Difference]: Finished difference Result 177 states and 268 transitions. [2022-11-22 01:45:54,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-11-22 01:45:54,215 INFO L78 Accepts]: Start accepts. Automaton has has 99 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 19 states have internal predecessors, (19), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) Word has length 255 [2022-11-22 01:45:54,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:45:54,225 INFO L225 Difference]: With dead ends: 177 [2022-11-22 01:45:54,225 INFO L226 Difference]: Without dead ends: 159 [2022-11-22 01:45:54,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 768 GetRequests, 663 SyntacticMatches, 2 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 680 ImplicationChecksByTransitivity, 93.6s TimeCoverageRelationStatistics Valid=5238, Invalid=5682, Unknown=0, NotChecked=0, Total=10920 [2022-11-22 01:45:54,234 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 644 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 457 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 457 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:45:54,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 216 Invalid, 1381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [457 Valid, 924 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-22 01:45:54,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-11-22 01:45:54,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2022-11-22 01:45:54,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 59 states have (on average 1.3220338983050848) internal successors, (78), 72 states have internal predecessors, (78), 85 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2022-11-22 01:45:54,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 248 transitions. [2022-11-22 01:45:54,421 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 248 transitions. Word has length 255 [2022-11-22 01:45:54,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:45:54,423 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 248 transitions. [2022-11-22 01:45:54,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 99 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 19 states have internal predecessors, (19), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2022-11-22 01:45:54,424 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 248 transitions. [2022-11-22 01:45:54,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-11-22 01:45:54,431 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:45:54,431 INFO L195 NwaCegarLoop]: trace histogram [79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:45:54,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:45:54,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-22 01:45:54,639 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-22 01:45:54,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:45:54,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1963470602, now seen corresponding path program 1 times [2022-11-22 01:45:54,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:45:54,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179553680] [2022-11-22 01:45:54,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:45:54,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:45:54,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:45:55,198 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 6084 trivial. 0 not checked. [2022-11-22 01:45:55,199 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:45:55,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179553680] [2022-11-22 01:45:55,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179553680] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:45:55,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349705589] [2022-11-22 01:45:55,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:45:55,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:45:55,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:45:55,203 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:45:55,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:45:55,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:45:55,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 726 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-22 01:45:55,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:45:55,788 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 6084 trivial. 0 not checked. [2022-11-22 01:45:55,789 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:45:56,249 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 6084 trivial. 0 not checked. [2022-11-22 01:45:56,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [349705589] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:45:56,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1921557436] [2022-11-22 01:45:56,255 INFO L159 IcfgInterpreter]: Started Sifa with 103 locations of interest [2022-11-22 01:45:56,256 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:45:56,256 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:45:56,257 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:45:56,257 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:46:20,660 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-11-22 01:46:20,662 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:48:01,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1921557436] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:48:01,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:48:01,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [99] imperfect sequences [5, 5, 5] total 105 [2022-11-22 01:48:01,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109156080] [2022-11-22 01:48:01,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:48:01,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 101 states [2022-11-22 01:48:01,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:48:01,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2022-11-22 01:48:01,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5252, Invalid=5878, Unknown=0, NotChecked=0, Total=11130 [2022-11-22 01:48:01,118 INFO L87 Difference]: Start difference. First operand 159 states and 248 transitions. Second operand has 101 states, 20 states have (on average 1.1) internal successors, (22), 21 states have internal predecessors, (22), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2022-11-22 01:48:05,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:48:05,224 INFO L93 Difference]: Finished difference Result 160 states and 249 transitions. [2022-11-22 01:48:05,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-11-22 01:48:05,225 INFO L78 Accepts]: Start accepts. Automaton has has 101 states, 20 states have (on average 1.1) internal successors, (22), 21 states have internal predecessors, (22), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) Word has length 258 [2022-11-22 01:48:05,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:48:05,228 INFO L225 Difference]: With dead ends: 160 [2022-11-22 01:48:05,229 INFO L226 Difference]: Without dead ends: 158 [2022-11-22 01:48:05,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 777 GetRequests, 669 SyntacticMatches, 4 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 100.4s TimeCoverageRelationStatistics Valid=5252, Invalid=5878, Unknown=0, NotChecked=0, Total=11130 [2022-11-22 01:48:05,233 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 490 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1201 mSolverCounterSat, 403 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 1604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 1201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:48:05,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 199 Invalid, 1604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 1201 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-22 01:48:05,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-11-22 01:48:05,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 157. [2022-11-22 01:48:05,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 59 states have (on average 1.2881355932203389) internal successors, (76), 70 states have internal predecessors, (76), 85 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2022-11-22 01:48:05,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 246 transitions. [2022-11-22 01:48:05,360 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 246 transitions. Word has length 258 [2022-11-22 01:48:05,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:48:05,362 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 246 transitions. [2022-11-22 01:48:05,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 101 states, 20 states have (on average 1.1) internal successors, (22), 21 states have internal predecessors, (22), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2022-11-22 01:48:05,363 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 246 transitions. [2022-11-22 01:48:05,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2022-11-22 01:48:05,368 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:48:05,368 INFO L195 NwaCegarLoop]: trace histogram [80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:48:05,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-22 01:48:05,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:48:05,575 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-22 01:48:05,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:48:05,576 INFO L85 PathProgramCache]: Analyzing trace with hash -626372484, now seen corresponding path program 1 times [2022-11-22 01:48:05,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:48:05,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275068010] [2022-11-22 01:48:05,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:48:05,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:48:05,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:48:06,192 INFO L134 CoverageAnalysis]: Checked inductivity of 6320 backedges. 6 proven. 150 refuted. 0 times theorem prover too weak. 6164 trivial. 0 not checked. [2022-11-22 01:48:06,193 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:48:06,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275068010] [2022-11-22 01:48:06,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275068010] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:48:06,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894664048] [2022-11-22 01:48:06,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:48:06,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:48:06,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:48:06,197 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:48:06,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 01:48:06,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:48:06,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 743 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-22 01:48:06,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:48:06,773 INFO L134 CoverageAnalysis]: Checked inductivity of 6320 backedges. 2 proven. 77 refuted. 0 times theorem prover too weak. 6241 trivial. 0 not checked. [2022-11-22 01:48:06,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:48:07,237 INFO L134 CoverageAnalysis]: Checked inductivity of 6320 backedges. 2 proven. 77 refuted. 0 times theorem prover too weak. 6241 trivial. 0 not checked. [2022-11-22 01:48:07,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894664048] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:48:07,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1480666448] [2022-11-22 01:48:07,242 INFO L159 IcfgInterpreter]: Started Sifa with 108 locations of interest [2022-11-22 01:48:07,242 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:48:07,242 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:48:07,243 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:48:07,243 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:48:32,079 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 56 for LOIs [2022-11-22 01:48:32,100 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:50:28,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1480666448] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:50:28,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:50:28,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [103] imperfect sequences [5, 5, 5] total 111 [2022-11-22 01:50:28,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929121841] [2022-11-22 01:50:28,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:50:28,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 105 states [2022-11-22 01:50:28,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:50:28,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2022-11-22 01:50:28,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5761, Invalid=6671, Unknown=0, NotChecked=0, Total=12432 [2022-11-22 01:50:28,741 INFO L87 Difference]: Start difference. First operand 157 states and 246 transitions. Second operand has 105 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 25 states have internal predecessors, (26), 80 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2022-11-22 01:50:34,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:50:34,707 INFO L93 Difference]: Finished difference Result 168 states and 259 transitions. [2022-11-22 01:50:34,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-11-22 01:50:34,709 INFO L78 Accepts]: Start accepts. Automaton has has 105 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 25 states have internal predecessors, (26), 80 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) Word has length 265 [2022-11-22 01:50:34,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:50:34,711 INFO L225 Difference]: With dead ends: 168 [2022-11-22 01:50:34,711 INFO L226 Difference]: Without dead ends: 166 [2022-11-22 01:50:34,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 799 GetRequests, 685 SyntacticMatches, 4 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 641 ImplicationChecksByTransitivity, 116.6s TimeCoverageRelationStatistics Valid=5761, Invalid=6671, Unknown=0, NotChecked=0, Total=12432 [2022-11-22 01:50:34,716 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 477 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1477 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 1808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 1477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:50:34,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [563 Valid, 199 Invalid, 1808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [331 Valid, 1477 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-11-22 01:50:34,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-22 01:50:34,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 164. [2022-11-22 01:50:34,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 65 states have (on average 1.2769230769230768) internal successors, (83), 76 states have internal predecessors, (83), 86 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2022-11-22 01:50:34,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 255 transitions. [2022-11-22 01:50:34,858 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 255 transitions. Word has length 265 [2022-11-22 01:50:34,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:50:34,860 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 255 transitions. [2022-11-22 01:50:34,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 105 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 25 states have internal predecessors, (26), 80 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2022-11-22 01:50:34,861 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 255 transitions. [2022-11-22 01:50:34,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-11-22 01:50:34,866 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:34,867 INFO L195 NwaCegarLoop]: trace histogram [80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:50:34,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 01:50:35,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:50:35,076 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-22 01:50:35,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:35,077 INFO L85 PathProgramCache]: Analyzing trace with hash 446463424, now seen corresponding path program 1 times [2022-11-22 01:50:35,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:50:35,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692051836] [2022-11-22 01:50:35,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:35,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:50:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:35,644 INFO L134 CoverageAnalysis]: Checked inductivity of 6320 backedges. 2 proven. 77 refuted. 0 times theorem prover too weak. 6241 trivial. 0 not checked. [2022-11-22 01:50:35,644 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:50:35,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692051836] [2022-11-22 01:50:35,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692051836] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:50:35,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82991213] [2022-11-22 01:50:35,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:35,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:50:35,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:50:35,647 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:50:35,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 01:50:35,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:35,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-22 01:50:35,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:50:36,380 INFO L134 CoverageAnalysis]: Checked inductivity of 6320 backedges. 2 proven. 77 refuted. 0 times theorem prover too weak. 6241 trivial. 0 not checked. [2022-11-22 01:50:36,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:50:36,879 INFO L134 CoverageAnalysis]: Checked inductivity of 6320 backedges. 2 proven. 77 refuted. 0 times theorem prover too weak. 6241 trivial. 0 not checked. [2022-11-22 01:50:36,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [82991213] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:50:36,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1074935894] [2022-11-22 01:50:36,883 INFO L159 IcfgInterpreter]: Started Sifa with 110 locations of interest [2022-11-22 01:50:36,883 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:50:36,884 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:50:36,884 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:50:36,885 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:51:02,603 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 56 for LOIs [2022-11-22 01:51:02,615 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:52:56,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1074935894] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:52:56,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:52:56,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [104] imperfect sequences [5, 5, 5] total 110 [2022-11-22 01:52:56,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648813364] [2022-11-22 01:52:56,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:52:56,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 106 states [2022-11-22 01:52:56,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:52:56,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2022-11-22 01:52:56,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5757, Invalid=6453, Unknown=0, NotChecked=0, Total=12210 [2022-11-22 01:52:56,503 INFO L87 Difference]: Start difference. First operand 164 states and 255 transitions. Second operand has 106 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 26 states have internal predecessors, (28), 80 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2022-11-22 01:53:01,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:53:01,250 INFO L93 Difference]: Finished difference Result 166 states and 257 transitions. [2022-11-22 01:53:01,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2022-11-22 01:53:01,251 INFO L78 Accepts]: Start accepts. Automaton has has 106 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 26 states have internal predecessors, (28), 80 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) Word has length 267 [2022-11-22 01:53:01,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:53:01,253 INFO L225 Difference]: With dead ends: 166 [2022-11-22 01:53:01,254 INFO L226 Difference]: Without dead ends: 164 [2022-11-22 01:53:01,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 804 GetRequests, 689 SyntacticMatches, 6 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 113.8s TimeCoverageRelationStatistics Valid=5757, Invalid=6453, Unknown=0, NotChecked=0, Total=12210 [2022-11-22 01:53:01,256 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 406 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 1616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 351 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:53:01,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 198 Invalid, 1616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [351 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-22 01:53:01,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-11-22 01:53:01,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 155. [2022-11-22 01:53:01,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 59 states have (on average 1.2542372881355932) internal successors, (74), 68 states have internal predecessors, (74), 85 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2022-11-22 01:53:01,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 244 transitions. [2022-11-22 01:53:01,357 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 244 transitions. Word has length 267 [2022-11-22 01:53:01,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:53:01,358 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 244 transitions. [2022-11-22 01:53:01,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 106 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 26 states have internal predecessors, (28), 80 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2022-11-22 01:53:01,358 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 244 transitions. [2022-11-22 01:53:01,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-11-22 01:53:01,362 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:53:01,363 INFO L195 NwaCegarLoop]: trace histogram [81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:53:01,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 01:53:01,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:53:01,569 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-22 01:53:01,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:53:01,570 INFO L85 PathProgramCache]: Analyzing trace with hash -305712050, now seen corresponding path program 1 times [2022-11-22 01:53:01,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:53:01,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582569616] [2022-11-22 01:53:01,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:53:01,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:53:01,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:53:01,979 INFO L134 CoverageAnalysis]: Checked inductivity of 6480 backedges. 4 proven. 76 refuted. 0 times theorem prover too weak. 6400 trivial. 0 not checked. [2022-11-22 01:53:01,979 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:53:01,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582569616] [2022-11-22 01:53:01,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582569616] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:53:01,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070532791] [2022-11-22 01:53:01,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:53:01,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:53:01,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:53:01,984 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:53:02,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 01:53:02,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:53:02,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 760 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-22 01:53:02,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:53:02,509 INFO L134 CoverageAnalysis]: Checked inductivity of 6480 backedges. 4 proven. 76 refuted. 0 times theorem prover too weak. 6400 trivial. 0 not checked. [2022-11-22 01:53:02,509 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:53:02,913 INFO L134 CoverageAnalysis]: Checked inductivity of 6480 backedges. 4 proven. 76 refuted. 0 times theorem prover too weak. 6400 trivial. 0 not checked. [2022-11-22 01:53:02,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1070532791] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:53:02,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1886564796] [2022-11-22 01:53:02,916 INFO L159 IcfgInterpreter]: Started Sifa with 113 locations of interest [2022-11-22 01:53:02,916 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:53:02,916 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:53:02,917 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:53:02,917 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:53:27,759 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-11-22 01:53:27,760 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:55:31,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1886564796] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:55:31,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:55:31,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [107] imperfect sequences [5, 5, 5] total 113 [2022-11-22 01:55:31,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10108429] [2022-11-22 01:55:31,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:55:31,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 109 states [2022-11-22 01:55:31,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:31,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2022-11-22 01:55:31,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6060, Invalid=6822, Unknown=0, NotChecked=0, Total=12882 [2022-11-22 01:55:31,909 INFO L87 Difference]: Start difference. First operand 155 states and 244 transitions. Second operand has 109 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 29 states have internal predecessors, (30), 81 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2022-11-22 01:55:37,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:37,492 INFO L93 Difference]: Finished difference Result 174 states and 267 transitions. [2022-11-22 01:55:37,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-11-22 01:55:37,493 INFO L78 Accepts]: Start accepts. Automaton has has 109 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 29 states have internal predecessors, (30), 81 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) Word has length 272 [2022-11-22 01:55:37,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:37,495 INFO L225 Difference]: With dead ends: 174 [2022-11-22 01:55:37,495 INFO L226 Difference]: Without dead ends: 172 [2022-11-22 01:55:37,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 819 GetRequests, 701 SyntacticMatches, 6 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 124.1s TimeCoverageRelationStatistics Valid=6060, Invalid=6822, Unknown=0, NotChecked=0, Total=12882 [2022-11-22 01:55:37,498 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 380 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 1735 mSolverCounterSat, 296 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 2031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 296 IncrementalHoareTripleChecker+Valid, 1735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:37,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 185 Invalid, 2031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [296 Valid, 1735 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-22 01:55:37,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-11-22 01:55:37,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 167. [2022-11-22 01:55:37,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 69 states have (on average 1.2463768115942029) internal successors, (86), 78 states have internal predecessors, (86), 87 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2022-11-22 01:55:37,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 260 transitions. [2022-11-22 01:55:37,591 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 260 transitions. Word has length 272 [2022-11-22 01:55:37,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:37,592 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 260 transitions. [2022-11-22 01:55:37,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 109 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 29 states have internal predecessors, (30), 81 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2022-11-22 01:55:37,593 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 260 transitions. [2022-11-22 01:55:37,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-11-22 01:55:37,595 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:37,595 INFO L195 NwaCegarLoop]: trace histogram [81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:37,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-22 01:55:37,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:55:37,796 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-22 01:55:37,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:37,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1473102866, now seen corresponding path program 1 times [2022-11-22 01:55:37,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:37,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488327982] [2022-11-22 01:55:37,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:37,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:37,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:38,197 INFO L134 CoverageAnalysis]: Checked inductivity of 6480 backedges. 4 proven. 76 refuted. 0 times theorem prover too weak. 6400 trivial. 0 not checked. [2022-11-22 01:55:38,198 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:38,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488327982] [2022-11-22 01:55:38,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488327982] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:55:38,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044202508] [2022-11-22 01:55:38,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:38,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:55:38,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:55:38,204 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:55:38,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21b69366-006c-46e4-b6c0-3c21054df8b8/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-22 01:55:38,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:38,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 762 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-22 01:55:38,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:55:38,717 INFO L134 CoverageAnalysis]: Checked inductivity of 6480 backedges. 4 proven. 76 refuted. 0 times theorem prover too weak. 6400 trivial. 0 not checked. [2022-11-22 01:55:38,717 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:55:39,128 INFO L134 CoverageAnalysis]: Checked inductivity of 6480 backedges. 4 proven. 76 refuted. 0 times theorem prover too weak. 6400 trivial. 0 not checked. [2022-11-22 01:55:39,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044202508] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:55:39,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [365375840] [2022-11-22 01:55:39,131 INFO L159 IcfgInterpreter]: Started Sifa with 115 locations of interest [2022-11-22 01:55:39,131 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:55:39,131 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:55:39,131 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:55:39,132 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:56:03,877 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-11-22 01:56:03,878 INFO L180 IcfgInterpreter]: Interpretation finished