./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive/McCarthy91-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07a7513-ec7d-4d47-96f0-9b28a2bbde3e/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07a7513-ec7d-4d47-96f0-9b28a2bbde3e/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07a7513-ec7d-4d47-96f0-9b28a2bbde3e/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07a7513-ec7d-4d47-96f0-9b28a2bbde3e/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursive/McCarthy91-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07a7513-ec7d-4d47-96f0-9b28a2bbde3e/bin/utaipan-SDwSMHVbGG/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07a7513-ec7d-4d47-96f0-9b28a2bbde3e/bin/utaipan-SDwSMHVbGG --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 a7241ade69e14c61e98aa837796de568ecf31fbd07f5084e15c262d93cdb3376 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:55:22,116 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:55:22,120 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:55:22,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:55:22,175 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:55:22,177 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:55:22,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:55:22,181 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:55:22,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:55:22,184 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:55:22,186 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:55:22,187 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:55:22,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:55:22,189 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:55:22,191 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:55:22,192 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:55:22,193 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:55:22,194 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:55:22,197 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:55:22,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:55:22,201 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:55:22,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:55:22,204 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:55:22,205 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:55:22,209 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:55:22,209 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:55:22,209 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:55:22,210 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:55:22,211 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:55:22,212 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:55:22,213 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:55:22,214 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:55:22,215 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:55:22,216 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:55:22,217 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:55:22,217 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:55:22,218 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:55:22,219 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:55:22,219 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:55:22,220 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:55:22,221 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:55:22,222 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07a7513-ec7d-4d47-96f0-9b28a2bbde3e/bin/utaipan-SDwSMHVbGG/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-10-29 05:55:22,247 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:55:22,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:55:22,248 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:55:22,248 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:55:22,248 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:55:22,248 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:55:22,249 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:55:22,249 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:55:22,249 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:55:22,249 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:55:22,249 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:55:22,250 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:55:22,250 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:55:22,250 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:55:22,250 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:55:22,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:55:22,251 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:55:22,251 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 05:55:22,251 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:55:22,252 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:55:22,252 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:55:22,252 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:55:22,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:55:22,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:55:22,252 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-29 05:55:22,253 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:55:22,253 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:55:22,253 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:55:22,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:55:22,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:55:22,254 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:55:22,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:55:22,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:55:22,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:55:22,254 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:55:22,255 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:55:22,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:55:22,255 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:55:22,255 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:55:22,255 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:55:22,255 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_c07a7513-ec7d-4d47-96f0-9b28a2bbde3e/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07a7513-ec7d-4d47-96f0-9b28a2bbde3e/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7241ade69e14c61e98aa837796de568ecf31fbd07f5084e15c262d93cdb3376 [2021-10-29 05:55:22,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:55:22,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:55:22,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:55:22,539 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:55:22,539 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:55:22,540 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07a7513-ec7d-4d47-96f0-9b28a2bbde3e/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/recursive/McCarthy91-1.c [2021-10-29 05:55:22,618 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07a7513-ec7d-4d47-96f0-9b28a2bbde3e/bin/utaipan-SDwSMHVbGG/data/5b2f590aa/e691ca24eabd432db31594ec593d93d4/FLAG48e9856b7 [2021-10-29 05:55:23,172 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:55:23,173 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07a7513-ec7d-4d47-96f0-9b28a2bbde3e/sv-benchmarks/c/recursive/McCarthy91-1.c [2021-10-29 05:55:23,180 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07a7513-ec7d-4d47-96f0-9b28a2bbde3e/bin/utaipan-SDwSMHVbGG/data/5b2f590aa/e691ca24eabd432db31594ec593d93d4/FLAG48e9856b7 [2021-10-29 05:55:23,617 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07a7513-ec7d-4d47-96f0-9b28a2bbde3e/bin/utaipan-SDwSMHVbGG/data/5b2f590aa/e691ca24eabd432db31594ec593d93d4 [2021-10-29 05:55:23,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:55:23,626 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:55:23,630 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:55:23,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:55:23,635 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:55:23,635 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:55:23" (1/1) ... [2021-10-29 05:55:23,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@296ecc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:55:23, skipping insertion in model container [2021-10-29 05:55:23,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:55:23" (1/1) ... [2021-10-29 05:55:23,644 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:55:23,657 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:55:23,829 WARN L228 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_c07a7513-ec7d-4d47-96f0-9b28a2bbde3e/sv-benchmarks/c/recursive/McCarthy91-1.c[749,762] [2021-10-29 05:55:23,830 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:55:23,845 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:55:23,860 WARN L228 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_c07a7513-ec7d-4d47-96f0-9b28a2bbde3e/sv-benchmarks/c/recursive/McCarthy91-1.c[749,762] [2021-10-29 05:55:23,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:55:23,872 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:55:23,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:55:23 WrapperNode [2021-10-29 05:55:23,873 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:55:23,873 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:55:23,874 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:55:23,874 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:55:23,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:55:23" (1/1) ... [2021-10-29 05:55:23,897 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:55:23" (1/1) ... [2021-10-29 05:55:23,915 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:55:23,916 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:55:23,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:55:23,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:55:23,928 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:55:23" (1/1) ... [2021-10-29 05:55:23,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:55:23" (1/1) ... [2021-10-29 05:55:23,929 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:55:23" (1/1) ... [2021-10-29 05:55:23,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:55:23" (1/1) ... [2021-10-29 05:55:23,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:55:23" (1/1) ... [2021-10-29 05:55:23,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:55:23" (1/1) ... [2021-10-29 05:55:23,937 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:55:23" (1/1) ... [2021-10-29 05:55:23,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:55:23,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:55:23,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:55:23,940 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:55:23,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:55:23" (1/1) ... [2021-10-29 05:55:23,950 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:55:23,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07a7513-ec7d-4d47-96f0-9b28a2bbde3e/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:55:23,977 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07a7513-ec7d-4d47-96f0-9b28a2bbde3e/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:55:23,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07a7513-ec7d-4d47-96f0-9b28a2bbde3e/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:55:24,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:55:24,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:55:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 05:55:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:55:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure f91 [2021-10-29 05:55:24,019 INFO L138 BoogieDeclarations]: Found implementation of procedure f91 [2021-10-29 05:55:24,269 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:55:24,269 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-29 05:55:24,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:55:24 BoogieIcfgContainer [2021-10-29 05:55:24,272 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:55:24,274 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:55:24,274 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:55:24,279 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:55:24,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:55:23" (1/3) ... [2021-10-29 05:55:24,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6682c09c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:55:24, skipping insertion in model container [2021-10-29 05:55:24,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:55:23" (2/3) ... [2021-10-29 05:55:24,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6682c09c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:55:24, skipping insertion in model container [2021-10-29 05:55:24,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:55:24" (3/3) ... [2021-10-29 05:55:24,295 INFO L111 eAbstractionObserver]: Analyzing ICFG McCarthy91-1.c [2021-10-29 05:55:24,300 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:55:24,301 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-29 05:55:24,350 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:55:24,357 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 05:55:24,357 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-29 05:55:24,374 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 23 states have internal predecessors, (26), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-29 05:55:24,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 05:55:24,378 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:55:24,379 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-29 05:55:24,379 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-29 05:55:24,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:55:24,385 INFO L85 PathProgramCache]: Analyzing trace with hash 82791271, now seen corresponding path program 1 times [2021-10-29 05:55:24,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:55:24,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275408016] [2021-10-29 05:55:24,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:55:24,396 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:55:24,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:55:24,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:55:24,571 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:55:24,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275408016] [2021-10-29 05:55:24,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275408016] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:55:24,573 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:55:24,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:55:24,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2178494] [2021-10-29 05:55:24,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:55:24,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:55:24,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:55:24,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:55:24,598 INFO L87 Difference]: Start difference. First operand has 28 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 23 states have internal predecessors, (26), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:55:24,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:55:24,745 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2021-10-29 05:55:24,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 05:55:24,747 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-29 05:55:24,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:55:24,756 INFO L225 Difference]: With dead ends: 46 [2021-10-29 05:55:24,756 INFO L226 Difference]: Without dead ends: 41 [2021-10-29 05:55:24,759 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:55:24,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-10-29 05:55:24,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 36. [2021-10-29 05:55:24,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 24 states have (on average 1.375) internal successors, (33), 28 states have internal predecessors, (33), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-29 05:55:24,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2021-10-29 05:55:24,796 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 5 [2021-10-29 05:55:24,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:55:24,796 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2021-10-29 05:55:24,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:55:24,797 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2021-10-29 05:55:24,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 05:55:24,797 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:55:24,797 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-29 05:55:24,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 05:55:24,798 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-29 05:55:24,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:55:24,799 INFO L85 PathProgramCache]: Analyzing trace with hash 82791431, now seen corresponding path program 1 times [2021-10-29 05:55:24,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:55:24,800 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461742116] [2021-10-29 05:55:24,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:55:24,800 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:55:24,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:55:24,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:55:24,833 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:55:24,833 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461742116] [2021-10-29 05:55:24,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461742116] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:55:24,833 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:55:24,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 05:55:24,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190448955] [2021-10-29 05:55:24,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:55:24,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:55:24,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:55:24,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:55:24,838 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:55:24,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:55:24,857 INFO L93 Difference]: Finished difference Result 40 states and 50 transitions. [2021-10-29 05:55:24,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:55:24,858 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-29 05:55:24,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:55:24,859 INFO L225 Difference]: With dead ends: 40 [2021-10-29 05:55:24,859 INFO L226 Difference]: Without dead ends: 39 [2021-10-29 05:55:24,860 INFO L786 BasicCegarLoop]: 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 [2021-10-29 05:55:24,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-10-29 05:55:24,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 35. [2021-10-29 05:55:24,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 27 states have internal predecessors, (31), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-29 05:55:24,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2021-10-29 05:55:24,870 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 5 [2021-10-29 05:55:24,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:55:24,871 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2021-10-29 05:55:24,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:55:24,871 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2021-10-29 05:55:24,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 05:55:24,872 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:55:24,872 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-29 05:55:24,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 05:55:24,873 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-29 05:55:24,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:55:24,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1728437826, now seen corresponding path program 1 times [2021-10-29 05:55:24,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:55:24,874 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218650042] [2021-10-29 05:55:24,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:55:24,875 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:55:24,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:55:24,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:55:24,938 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:55:24,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218650042] [2021-10-29 05:55:24,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218650042] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:55:24,939 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:55:24,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 05:55:24,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604972959] [2021-10-29 05:55:24,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:55:24,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:55:24,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:55:24,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:55:24,942 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:55:24,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:55:24,964 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2021-10-29 05:55:24,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:55:24,965 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-29 05:55:24,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:55:24,966 INFO L225 Difference]: With dead ends: 39 [2021-10-29 05:55:24,967 INFO L226 Difference]: Without dead ends: 38 [2021-10-29 05:55:24,967 INFO L786 BasicCegarLoop]: 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 [2021-10-29 05:55:24,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-29 05:55:24,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2021-10-29 05:55:24,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 26 states have internal predecessors, (29), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-29 05:55:24,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2021-10-29 05:55:24,976 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 6 [2021-10-29 05:55:24,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:55:24,977 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2021-10-29 05:55:24,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:55:24,977 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2021-10-29 05:55:24,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 05:55:24,978 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:55:24,978 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-29 05:55:24,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-29 05:55:24,979 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-29 05:55:24,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:55:24,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1728432861, now seen corresponding path program 1 times [2021-10-29 05:55:24,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:55:24,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451085659] [2021-10-29 05:55:24,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:55:24,981 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:55:24,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:55:25,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:55:25,067 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:55:25,068 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451085659] [2021-10-29 05:55:25,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451085659] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:55:25,068 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:55:25,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:55:25,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629854445] [2021-10-29 05:55:25,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:55:25,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:55:25,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:55:25,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:55:25,071 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:55:25,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:55:25,142 INFO L93 Difference]: Finished difference Result 50 states and 60 transitions. [2021-10-29 05:55:25,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 05:55:25,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-29 05:55:25,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:55:25,144 INFO L225 Difference]: With dead ends: 50 [2021-10-29 05:55:25,144 INFO L226 Difference]: Without dead ends: 49 [2021-10-29 05:55:25,145 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:55:25,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-10-29 05:55:25,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 46. [2021-10-29 05:55:25,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 33 states have (on average 1.1818181818181819) internal successors, (39), 35 states have internal predecessors, (39), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-10-29 05:55:25,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2021-10-29 05:55:25,166 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 6 [2021-10-29 05:55:25,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:55:25,167 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2021-10-29 05:55:25,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:55:25,167 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2021-10-29 05:55:25,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 05:55:25,168 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:55:25,168 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:55:25,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-29 05:55:25,169 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-29 05:55:25,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:55:25,169 INFO L85 PathProgramCache]: Analyzing trace with hash 2028675825, now seen corresponding path program 1 times [2021-10-29 05:55:25,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:55:25,170 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005222946] [2021-10-29 05:55:25,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:55:25,170 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:55:25,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:55:25,250 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:55:25,250 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:55:25,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005222946] [2021-10-29 05:55:25,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005222946] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:55:25,251 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:55:25,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 05:55:25,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486555868] [2021-10-29 05:55:25,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:55:25,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:55:25,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:55:25,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:55:25,258 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:55:25,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:55:25,379 INFO L93 Difference]: Finished difference Result 68 states and 82 transitions. [2021-10-29 05:55:25,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 05:55:25,380 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-29 05:55:25,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:55:25,383 INFO L225 Difference]: With dead ends: 68 [2021-10-29 05:55:25,386 INFO L226 Difference]: Without dead ends: 67 [2021-10-29 05:55:25,387 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:55:25,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-10-29 05:55:25,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 58. [2021-10-29 05:55:25,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 42 states have (on average 1.1666666666666667) internal successors, (49), 44 states have internal predecessors, (49), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-10-29 05:55:25,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 67 transitions. [2021-10-29 05:55:25,415 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 67 transitions. Word has length 10 [2021-10-29 05:55:25,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:55:25,416 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 67 transitions. [2021-10-29 05:55:25,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:55:25,417 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 67 transitions. [2021-10-29 05:55:25,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 05:55:25,418 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:55:25,418 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:55:25,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-29 05:55:25,419 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-29 05:55:25,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:55:25,421 INFO L85 PathProgramCache]: Analyzing trace with hash 954490023, now seen corresponding path program 1 times [2021-10-29 05:55:25,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:55:25,422 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954112757] [2021-10-29 05:55:25,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:55:25,425 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:55:25,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:55:25,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:55:25,477 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:55:25,477 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954112757] [2021-10-29 05:55:25,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954112757] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:55:25,478 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:55:25,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:55:25,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678106572] [2021-10-29 05:55:25,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:55:25,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:55:25,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:55:25,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:55:25,480 INFO L87 Difference]: Start difference. First operand 58 states and 67 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-29 05:55:25,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:55:25,497 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2021-10-29 05:55:25,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:55:25,498 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2021-10-29 05:55:25,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:55:25,499 INFO L225 Difference]: With dead ends: 58 [2021-10-29 05:55:25,499 INFO L226 Difference]: Without dead ends: 47 [2021-10-29 05:55:25,500 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:55:25,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-29 05:55:25,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-10-29 05:55:25,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 33 states have (on average 1.1818181818181819) internal successors, (39), 35 states have internal predecessors, (39), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-10-29 05:55:25,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 55 transitions. [2021-10-29 05:55:25,509 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 55 transitions. Word has length 13 [2021-10-29 05:55:25,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:55:25,509 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 55 transitions. [2021-10-29 05:55:25,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-29 05:55:25,510 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 55 transitions. [2021-10-29 05:55:25,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 05:55:25,511 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:55:25,511 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:55:25,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-29 05:55:25,511 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-29 05:55:25,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:55:25,512 INFO L85 PathProgramCache]: Analyzing trace with hash -305440512, now seen corresponding path program 1 times [2021-10-29 05:55:25,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:55:25,513 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925910385] [2021-10-29 05:55:25,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:55:25,513 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:55:25,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:55:25,606 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 05:55:25,606 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:55:25,607 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925910385] [2021-10-29 05:55:25,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925910385] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 05:55:25,608 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849430452] [2021-10-29 05:55:25,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:55:25,609 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:55:25,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07a7513-ec7d-4d47-96f0-9b28a2bbde3e/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:55:25,615 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07a7513-ec7d-4d47-96f0-9b28a2bbde3e/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:55:25,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07a7513-ec7d-4d47-96f0-9b28a2bbde3e/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-29 05:55:25,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:55:25,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-29 05:55:25,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:55:25,920 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:55:25,920 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:55:26,224 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:55:26,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1849430452] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:55:26,225 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [234127423] [2021-10-29 05:55:26,251 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2021-10-29 05:55:26,251 INFO L166 IcfgInterpreter]: Building call graph [2021-10-29 05:55:26,266 FATAL L? ?]: Ignoring exception! java.lang.IllegalArgumentException: Recursive programs are not supported. at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.topsortRelevant(CallGraph.java:132) at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.(CallGraph.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.(IcfgInterpreter.java:92) at de.uni_freiburg.informatik.ultimate.plugins.sifa.SifaBuilder.construct(SifaBuilder.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:609) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-29 05:55:26,275 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-29 05:55:26,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 21 [2021-10-29 05:55:26,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411247260] [2021-10-29 05:55:26,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-29 05:55:26,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:55:26,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-29 05:55:26,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2021-10-29 05:55:26,278 INFO L87 Difference]: Start difference. First operand 47 states and 55 transitions. Second operand has 22 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 17 states have internal predecessors, (37), 9 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-29 05:55:27,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:55:27,043 INFO L93 Difference]: Finished difference Result 83 states and 106 transitions. [2021-10-29 05:55:27,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-29 05:55:27,044 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 17 states have internal predecessors, (37), 9 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 18 [2021-10-29 05:55:27,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:55:27,045 INFO L225 Difference]: With dead ends: 83 [2021-10-29 05:55:27,046 INFO L226 Difference]: Without dead ends: 82 [2021-10-29 05:55:27,047 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=486, Invalid=1320, Unknown=0, NotChecked=0, Total=1806 [2021-10-29 05:55:27,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-10-29 05:55:27,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 46. [2021-10-29 05:55:27,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 34 states have internal predecessors, (38), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-10-29 05:55:27,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 54 transitions. [2021-10-29 05:55:27,060 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 54 transitions. Word has length 18 [2021-10-29 05:55:27,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:55:27,060 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 54 transitions. [2021-10-29 05:55:27,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 17 states have internal predecessors, (37), 9 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-29 05:55:27,060 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2021-10-29 05:55:27,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-29 05:55:27,061 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:55:27,061 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:55:27,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07a7513-ec7d-4d47-96f0-9b28a2bbde3e/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-29 05:55:27,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07a7513-ec7d-4d47-96f0-9b28a2bbde3e/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:55:27,275 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-29 05:55:27,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:55:27,276 INFO L85 PathProgramCache]: Analyzing trace with hash -878716246, now seen corresponding path program 1 times [2021-10-29 05:55:27,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:55:27,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062353302] [2021-10-29 05:55:27,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:55:27,276 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:55:27,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:55:27,358 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-29 05:55:27,358 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:55:27,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062353302] [2021-10-29 05:55:27,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062353302] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:55:27,359 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:55:27,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-29 05:55:27,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522882018] [2021-10-29 05:55:27,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-29 05:55:27,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:55:27,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 05:55:27,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:55:27,362 INFO L87 Difference]: Start difference. First operand 46 states and 54 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-29 05:55:27,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:55:27,467 INFO L93 Difference]: Finished difference Result 98 states and 127 transitions. [2021-10-29 05:55:27,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-29 05:55:27,470 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2021-10-29 05:55:27,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:55:27,477 INFO L225 Difference]: With dead ends: 98 [2021-10-29 05:55:27,478 INFO L226 Difference]: Without dead ends: 97 [2021-10-29 05:55:27,479 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-10-29 05:55:27,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-10-29 05:55:27,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 88. [2021-10-29 05:55:27,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 60 states have (on average 1.1166666666666667) internal successors, (67), 64 states have internal predecessors, (67), 19 states have call successors, (19), 6 states have call predecessors, (19), 8 states have return successors, (22), 17 states have call predecessors, (22), 16 states have call successors, (22) [2021-10-29 05:55:27,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 108 transitions. [2021-10-29 05:55:27,516 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 108 transitions. Word has length 19 [2021-10-29 05:55:27,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:55:27,517 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 108 transitions. [2021-10-29 05:55:27,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-29 05:55:27,517 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 108 transitions. [2021-10-29 05:55:27,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-29 05:55:27,519 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:55:27,520 INFO L513 BasicCegarLoop]: trace histogram [7, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-10-29 05:55:27,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-29 05:55:27,520 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-29 05:55:27,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:55:27,521 INFO L85 PathProgramCache]: Analyzing trace with hash 572512239, now seen corresponding path program 1 times [2021-10-29 05:55:27,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:55:27,521 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866778826] [2021-10-29 05:55:27,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:55:27,521 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:55:27,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:55:27,652 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-10-29 05:55:27,654 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:55:27,654 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866778826] [2021-10-29 05:55:27,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866778826] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:55:27,655 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:55:27,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-29 05:55:27,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731055461] [2021-10-29 05:55:27,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 05:55:27,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:55:27,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 05:55:27,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:55:27,660 INFO L87 Difference]: Start difference. First operand 88 states and 108 transitions. Second operand has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-29 05:55:27,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:55:27,797 INFO L93 Difference]: Finished difference Result 92 states and 120 transitions. [2021-10-29 05:55:27,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-29 05:55:27,798 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2021-10-29 05:55:27,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:55:27,798 INFO L225 Difference]: With dead ends: 92 [2021-10-29 05:55:27,798 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 05:55:27,800 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2021-10-29 05:55:27,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 05:55:27,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 05:55:27,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:55:27,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 05:55:27,801 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2021-10-29 05:55:27,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:55:27,802 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 05:55:27,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-29 05:55:27,802 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 05:55:27,802 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 05:55:27,805 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:55:27,805 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:55:27,805 INFO L764 garLoopResultBuilder]: Registering result SAFE for location f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:55:27,806 INFO L764 garLoopResultBuilder]: Registering result SAFE for location f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:55:27,806 INFO L764 garLoopResultBuilder]: Registering result SAFE for location f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:55:27,806 INFO L764 garLoopResultBuilder]: Registering result SAFE for location f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:55:27,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-29 05:55:27,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-29 05:55:27,812 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:27,815 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:27,821 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:27,849 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:27,859 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:27,867 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:27,873 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:27,896 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:27,902 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:27,907 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:27,910 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:27,916 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:27,922 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:27,927 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:27,944 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:27,953 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:27,958 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:27,965 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:27,970 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:27,976 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:27,981 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:27,982 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:27,983 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:27,988 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:27,991 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:27,992 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:27,993 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:27,994 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:27,995 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:27,996 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:27,997 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:27,998 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:27,999 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:28,000 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:28,001 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:28,002 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:28,003 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:28,004 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:28,005 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:28,007 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:28,014 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:28,018 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:28,019 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:28,022 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:28,023 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:28,026 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:28,027 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:28,030 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:28,031 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:28,033 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:28,035 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:28,037 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:28,039 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:28,042 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:28,044 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:28,046 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:28,047 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:28,049 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:28,051 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:55:28,212 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-10-29 05:55:28,212 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-29 05:55:28,212 INFO L857 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2021-10-29 05:55:28,212 INFO L857 garLoopResultBuilder]: For program point L29-2(line 29) no Hoare annotation was computed. [2021-10-29 05:55:28,212 INFO L857 garLoopResultBuilder]: For program point L29-3(line 29) no Hoare annotation was computed. [2021-10-29 05:55:28,212 INFO L857 garLoopResultBuilder]: For program point L29-4(line 29) no Hoare annotation was computed. [2021-10-29 05:55:28,212 INFO L857 garLoopResultBuilder]: For program point L29-6(line 29) no Hoare annotation was computed. [2021-10-29 05:55:28,213 INFO L853 garLoopResultBuilder]: At program point L29-7(lines 29 33) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2021-10-29 05:55:28,213 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2021-10-29 05:55:28,213 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-29 05:55:28,213 INFO L853 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648))) [2021-10-29 05:55:28,213 INFO L857 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2021-10-29 05:55:28,213 INFO L857 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2021-10-29 05:55:28,214 INFO L857 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2021-10-29 05:55:28,214 INFO L857 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2021-10-29 05:55:28,214 INFO L853 garLoopResultBuilder]: At program point L21-2(line 21) the Hoare annotation is: (and (or (and (<= 91 f91_~x) (<= f91_~x 100)) (not (<= |f91_#in~x| 2147483648)) (not (<= 91 |f91_#in~x|))) (or (not (<= 0 (+ |f91_#in~x| 2147483648))) (and (<= 0 (+ f91_~x 2147483648)) (<= f91_~x |f91_#in~x|)) (not (<= |f91_#in~x| 2147483647)))) [2021-10-29 05:55:28,214 INFO L857 garLoopResultBuilder]: For program point f91EXIT(lines 17 23) no Hoare annotation was computed. [2021-10-29 05:55:28,214 INFO L857 garLoopResultBuilder]: For program point L18(lines 18 22) no Hoare annotation was computed. [2021-10-29 05:55:28,214 INFO L857 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2021-10-29 05:55:28,214 INFO L857 garLoopResultBuilder]: For program point L21-3(line 21) no Hoare annotation was computed. [2021-10-29 05:55:28,214 INFO L853 garLoopResultBuilder]: At program point L21-4(line 21) the Hoare annotation is: (let ((.cse0 (<= |f91_#t~ret7| 2147483648)) (.cse1 (<= 91 |f91_#t~ret7|))) (and (or (not (<= 0 (+ |f91_#in~x| 2147483648))) (and (<= 0 (+ f91_~x 2147483648)) (<= f91_~x |f91_#in~x|) .cse0 .cse1) (not (<= |f91_#in~x| 2147483647))) (or (and (<= 91 f91_~x) (<= f91_~x 100) .cse0 .cse1) (not (<= |f91_#in~x| 2147483648)) (not (<= 91 |f91_#in~x|))))) [2021-10-29 05:55:28,215 INFO L857 garLoopResultBuilder]: For program point L21-5(line 21) no Hoare annotation was computed. [2021-10-29 05:55:28,215 INFO L857 garLoopResultBuilder]: For program point f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2021-10-29 05:55:28,215 INFO L860 garLoopResultBuilder]: At program point f91ENTRY(lines 17 23) the Hoare annotation is: true [2021-10-29 05:55:28,215 INFO L857 garLoopResultBuilder]: For program point f91FINAL(lines 17 23) no Hoare annotation was computed. [2021-10-29 05:55:28,215 INFO L857 garLoopResultBuilder]: For program point f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2021-10-29 05:55:28,215 INFO L857 garLoopResultBuilder]: For program point f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2021-10-29 05:55:28,215 INFO L857 garLoopResultBuilder]: For program point f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2021-10-29 05:55:28,225 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:55:28,227 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:55:28,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:55:28 BoogieIcfgContainer [2021-10-29 05:55:28,242 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:55:28,243 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:55:28,243 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:55:28,243 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:55:28,244 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:55:24" (3/4) ... [2021-10-29 05:55:28,249 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 05:55:28,255 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure f91 [2021-10-29 05:55:28,263 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-10-29 05:55:28,264 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-29 05:55:28,264 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-29 05:55:28,264 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:55:28,309 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07a7513-ec7d-4d47-96f0-9b28a2bbde3e/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 05:55:28,310 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:55:28,311 INFO L168 Benchmark]: Toolchain (without parser) took 4683.94 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 78.0 MB in the beginning and 78.6 MB in the end (delta: -613.6 kB). Peak memory consumption was 22.8 MB. Max. memory is 16.1 GB. [2021-10-29 05:55:28,312 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 113.2 MB. Free memory was 85.1 MB in the beginning and 85.1 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:55:28,313 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.38 ms. Allocated memory is still 113.2 MB. Free memory was 77.7 MB in the beginning and 89.5 MB in the end (delta: -11.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:55:28,313 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.96 ms. Allocated memory is still 113.2 MB. Free memory was 89.5 MB in the beginning and 88.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:55:28,314 INFO L168 Benchmark]: Boogie Preprocessor took 22.62 ms. Allocated memory is still 113.2 MB. Free memory was 88.0 MB in the beginning and 87.4 MB in the end (delta: 674.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:55:28,314 INFO L168 Benchmark]: RCFGBuilder took 332.55 ms. Allocated memory is still 113.2 MB. Free memory was 86.8 MB in the beginning and 75.5 MB in the end (delta: 11.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 05:55:28,315 INFO L168 Benchmark]: TraceAbstraction took 3968.77 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 74.9 MB in the beginning and 81.8 MB in the end (delta: -6.9 MB). Peak memory consumption was 48.9 MB. Max. memory is 16.1 GB. [2021-10-29 05:55:28,315 INFO L168 Benchmark]: Witness Printer took 66.67 ms. Allocated memory is still 136.3 MB. Free memory was 81.8 MB in the beginning and 78.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:55:28,317 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 113.2 MB. Free memory was 85.1 MB in the beginning and 85.1 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 242.38 ms. Allocated memory is still 113.2 MB. Free memory was 77.7 MB in the beginning and 89.5 MB in the end (delta: -11.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.96 ms. Allocated memory is still 113.2 MB. Free memory was 89.5 MB in the beginning and 88.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.62 ms. Allocated memory is still 113.2 MB. Free memory was 88.0 MB in the beginning and 87.4 MB in the end (delta: 674.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 332.55 ms. Allocated memory is still 113.2 MB. Free memory was 86.8 MB in the beginning and 75.5 MB in the end (delta: 11.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3968.77 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 74.9 MB in the beginning and 81.8 MB in the end (delta: -6.9 MB). Peak memory consumption was 48.9 MB. Max. memory is 16.1 GB. * Witness Printer took 66.67 ms. Allocated memory is still 136.3 MB. Free memory was 81.8 MB in the beginning and 78.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 28 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 3.8s, OverallIterations: 9, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 176 SDtfs, 284 SDslu, 304 SDs, 0 SdLazy, 612 SolverSat, 166 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=88occurred in iteration=8, InterpolantAutomatonStates: 79, 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, 9 MinimizatonAttempts, 70 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 59 PreInvPairs, 59 NumberOfFragments, 99 HoareAnnotationTreeSize, 59 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 5 FomulaSimplificationsInter, 371 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 145 NumberOfCodeBlocks, 145 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 152 ConstructedInterpolants, 0 QuantifiedInterpolants, 371 SizeOfPredicates, 4 NumberOfNonLiveVariables, 66 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 97/109 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: x <= 2147483647 RESULT: Ultimate proved your program to be correct! [2021-10-29 05:55:28,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07a7513-ec7d-4d47-96f0-9b28a2bbde3e/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...