./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.UNBOUNDED.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur --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 7f4008cf19548475d4a1b90b2fc9651e21c073e156065e130bea6b81023185c5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 23:52:33,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:52:33,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:52:33,244 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:52:33,246 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:52:33,248 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:52:33,250 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:52:33,256 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:52:33,259 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:52:33,268 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:52:33,270 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:52:33,272 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:52:33,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:52:33,277 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:52:33,283 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:52:33,285 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:52:33,286 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:52:33,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:52:33,293 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:52:33,295 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:52:33,302 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:52:33,303 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:52:33,307 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:52:33,308 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:52:33,314 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:52:33,317 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:52:33,318 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:52:33,319 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:52:33,321 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:52:33,322 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:52:33,325 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:52:33,326 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:52:33,328 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:52:33,329 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:52:33,331 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:52:33,331 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:52:33,332 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:52:33,332 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:52:33,332 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:52:33,333 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:52:33,334 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:52:33,335 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-25 23:52:33,362 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:52:33,363 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:52:33,363 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:52:33,364 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:52:33,364 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:52:33,365 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:52:33,365 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:52:33,365 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:52:33,365 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:52:33,366 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:52:33,366 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:52:33,366 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:52:33,366 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:52:33,367 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:52:33,367 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:52:33,367 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:52:33,367 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:52:33,368 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:52:33,368 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:52:33,369 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:52:33,369 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:52:33,369 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:52:33,369 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:52:33,370 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:52:33,370 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:52:33,370 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:52:33,370 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:52:33,371 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:52:33,371 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:52:33,371 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:52:33,371 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:52:33,372 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:52:33,372 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:52:33,372 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:52:33,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:52:33,373 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:52:33,373 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:52:33,373 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:52:33,373 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:52:33,374 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:52:33,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:52:33,374 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:52:33,374 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:52:33,375 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f4008cf19548475d4a1b90b2fc9651e21c073e156065e130bea6b81023185c5 [2022-11-25 23:52:33,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:52:33,719 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:52:33,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:52:33,726 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:52:33,727 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:52:33,728 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.UNBOUNDED.pals.c [2022-11-25 23:52:37,063 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:52:37,388 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:52:37,388 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.UNBOUNDED.pals.c [2022-11-25 23:52:37,399 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/data/0ce33a5f2/19c6d4b319ea4539b9317b768b1e9ced/FLAG82233503d [2022-11-25 23:52:37,416 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/data/0ce33a5f2/19c6d4b319ea4539b9317b768b1e9ced [2022-11-25 23:52:37,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:52:37,421 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:52:37,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:52:37,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:52:37,433 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:52:37,435 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:52:37" (1/1) ... [2022-11-25 23:52:37,436 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ee5f631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:52:37, skipping insertion in model container [2022-11-25 23:52:37,436 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:52:37" (1/1) ... [2022-11-25 23:52:37,445 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:52:37,481 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:52:37,752 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.UNBOUNDED.pals.c[12020,12033] [2022-11-25 23:52:37,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:52:37,777 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:52:37,834 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.UNBOUNDED.pals.c[12020,12033] [2022-11-25 23:52:37,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:52:37,853 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:52:37,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:52:37 WrapperNode [2022-11-25 23:52:37,853 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:52:37,854 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:52:37,855 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:52:37,855 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:52:37,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:52:37" (1/1) ... [2022-11-25 23:52:37,877 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:52:37" (1/1) ... [2022-11-25 23:52:37,916 INFO L138 Inliner]: procedures = 28, calls = 51, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 387 [2022-11-25 23:52:37,916 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:52:37,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:52:37,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:52:37,917 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:52:37,928 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:52:37" (1/1) ... [2022-11-25 23:52:37,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:52:37" (1/1) ... [2022-11-25 23:52:37,933 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:52:37" (1/1) ... [2022-11-25 23:52:37,934 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:52:37" (1/1) ... [2022-11-25 23:52:37,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:52:37" (1/1) ... [2022-11-25 23:52:37,949 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:52:37" (1/1) ... [2022-11-25 23:52:37,952 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:52:37" (1/1) ... [2022-11-25 23:52:37,955 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:52:37" (1/1) ... [2022-11-25 23:52:37,960 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:52:37,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:52:37,961 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:52:37,961 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:52:37,962 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:52:37" (1/1) ... [2022-11-25 23:52:37,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:52:37,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:52:38,021 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:52:38,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:52:38,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:52:38,065 INFO L130 BoogieDeclarations]: Found specification of procedure write_history_bool [2022-11-25 23:52:38,065 INFO L138 BoogieDeclarations]: Found implementation of procedure write_history_bool [2022-11-25 23:52:38,065 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-25 23:52:38,065 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-25 23:52:38,066 INFO L130 BoogieDeclarations]: Found specification of procedure read_history_int8 [2022-11-25 23:52:38,066 INFO L138 BoogieDeclarations]: Found implementation of procedure read_history_int8 [2022-11-25 23:52:38,066 INFO L130 BoogieDeclarations]: Found specification of procedure read_history_bool [2022-11-25 23:52:38,066 INFO L138 BoogieDeclarations]: Found implementation of procedure read_history_bool [2022-11-25 23:52:38,066 INFO L130 BoogieDeclarations]: Found specification of procedure add_history_type [2022-11-25 23:52:38,067 INFO L138 BoogieDeclarations]: Found implementation of procedure add_history_type [2022-11-25 23:52:38,067 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 23:52:38,067 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 23:52:38,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:52:38,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:52:38,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:52:38,202 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:52:38,204 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:52:39,001 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:52:39,215 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:52:39,216 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 23:52:39,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:52:39 BoogieIcfgContainer [2022-11-25 23:52:39,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:52:39,224 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:52:39,224 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:52:39,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:52:39,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:52:37" (1/3) ... [2022-11-25 23:52:39,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49c5c223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:52:39, skipping insertion in model container [2022-11-25 23:52:39,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:52:37" (2/3) ... [2022-11-25 23:52:39,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49c5c223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:52:39, skipping insertion in model container [2022-11-25 23:52:39,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:52:39" (3/3) ... [2022-11-25 23:52:39,233 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_Triplicated.1.ufo.UNBOUNDED.pals.c [2022-11-25 23:52:39,258 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:52:39,259 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-25 23:52:39,367 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:52:39,379 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1f6cc11, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:52:39,380 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-25 23:52:39,387 INFO L276 IsEmpty]: Start isEmpty. Operand has 159 states, 107 states have (on average 1.5420560747663552) internal successors, (165), 119 states have internal predecessors, (165), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2022-11-25 23:52:39,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 23:52:39,405 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:52:39,406 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:52:39,407 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting add_history_typeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:52:39,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:52:39,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1167924664, now seen corresponding path program 1 times [2022-11-25 23:52:39,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:52:39,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220803153] [2022-11-25 23:52:39,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:39,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:52:39,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:39,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:52:39,722 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:52:39,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220803153] [2022-11-25 23:52:39,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220803153] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:52:39,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:52:39,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:52:39,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416081579] [2022-11-25 23:52:39,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:52:39,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:52:39,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:52:39,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:52:39,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:52:39,773 INFO L87 Difference]: Start difference. First operand has 159 states, 107 states have (on average 1.5420560747663552) internal successors, (165), 119 states have internal predecessors, (165), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-25 23:52:39,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:52:39,994 INFO L93 Difference]: Finished difference Result 337 states and 508 transitions. [2022-11-25 23:52:39,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:52:39,997 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 10 [2022-11-25 23:52:39,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:52:40,011 INFO L225 Difference]: With dead ends: 337 [2022-11-25 23:52:40,012 INFO L226 Difference]: Without dead ends: 180 [2022-11-25 23:52:40,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:52:40,022 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 34 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:52:40,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 660 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:52:40,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-11-25 23:52:40,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 174. [2022-11-25 23:52:40,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 121 states have (on average 1.5289256198347108) internal successors, (185), 132 states have internal predecessors, (185), 38 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-11-25 23:52:40,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 261 transitions. [2022-11-25 23:52:40,104 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 261 transitions. Word has length 10 [2022-11-25 23:52:40,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:52:40,105 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 261 transitions. [2022-11-25 23:52:40,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-25 23:52:40,105 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 261 transitions. [2022-11-25 23:52:40,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 23:52:40,108 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:52:40,108 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:52:40,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:52:40,113 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting add_history_typeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:52:40,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:52:40,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1565942323, now seen corresponding path program 1 times [2022-11-25 23:52:40,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:52:40,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418896734] [2022-11-25 23:52:40,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:40,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:52:40,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:40,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:52:40,371 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:52:40,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418896734] [2022-11-25 23:52:40,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418896734] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:52:40,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:52:40,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:52:40,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13006121] [2022-11-25 23:52:40,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:52:40,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:52:40,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:52:40,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:52:40,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:52:40,381 INFO L87 Difference]: Start difference. First operand 174 states and 261 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:52:40,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:52:40,543 INFO L93 Difference]: Finished difference Result 372 states and 568 transitions. [2022-11-25 23:52:40,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:52:40,548 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), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-11-25 23:52:40,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:52:40,555 INFO L225 Difference]: With dead ends: 372 [2022-11-25 23:52:40,555 INFO L226 Difference]: Without dead ends: 209 [2022-11-25 23:52:40,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:52:40,559 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 21 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:52:40,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 672 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:52:40,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-11-25 23:52:40,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 205. [2022-11-25 23:52:40,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 147 states have (on average 1.4965986394557824) internal successors, (220), 158 states have internal predecessors, (220), 43 states have call successors, (43), 7 states have call predecessors, (43), 7 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2022-11-25 23:52:40,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 306 transitions. [2022-11-25 23:52:40,624 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 306 transitions. Word has length 14 [2022-11-25 23:52:40,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:52:40,624 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 306 transitions. [2022-11-25 23:52:40,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:52:40,625 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 306 transitions. [2022-11-25 23:52:40,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-25 23:52:40,627 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:52:40,627 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-25 23:52:40,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:52:40,628 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting add_history_typeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:52:40,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:52:40,628 INFO L85 PathProgramCache]: Analyzing trace with hash -456541944, now seen corresponding path program 1 times [2022-11-25 23:52:40,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:52:40,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257782375] [2022-11-25 23:52:40,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:40,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:52:40,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:40,787 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 23:52:40,787 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:52:40,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257782375] [2022-11-25 23:52:40,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257782375] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:52:40,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1270428611] [2022-11-25 23:52:40,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:40,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:52:40,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:52:40,793 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:52:40,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 23:52:40,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:40,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 23:52:40,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:52:41,205 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 23:52:41,205 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:52:41,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1270428611] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:52:41,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:52:41,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-25 23:52:41,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740168355] [2022-11-25 23:52:41,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:52:41,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:52:41,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:52:41,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:52:41,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:52:41,209 INFO L87 Difference]: Start difference. First operand 205 states and 306 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:52:41,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:52:41,349 INFO L93 Difference]: Finished difference Result 209 states and 312 transitions. [2022-11-25 23:52:41,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:52:41,367 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2022-11-25 23:52:41,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:52:41,369 INFO L225 Difference]: With dead ends: 209 [2022-11-25 23:52:41,370 INFO L226 Difference]: Without dead ends: 208 [2022-11-25 23:52:41,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-25 23:52:41,372 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 45 mSDsluCounter, 663 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:52:41,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 909 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:52:41,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-11-25 23:52:41,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 204. [2022-11-25 23:52:41,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 147 states have (on average 1.4761904761904763) internal successors, (217), 157 states have internal predecessors, (217), 43 states have call successors, (43), 7 states have call predecessors, (43), 7 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2022-11-25 23:52:41,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 303 transitions. [2022-11-25 23:52:41,413 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 303 transitions. Word has length 26 [2022-11-25 23:52:41,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:52:41,414 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 303 transitions. [2022-11-25 23:52:41,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:52:41,414 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 303 transitions. [2022-11-25 23:52:41,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-25 23:52:41,416 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:52:41,416 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-25 23:52:41,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 23:52:41,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:52:41,623 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting add_history_typeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:52:41,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:52:41,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1267897856, now seen corresponding path program 1 times [2022-11-25 23:52:41,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:52:41,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733389725] [2022-11-25 23:52:41,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:41,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:52:41,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:41,759 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 23:52:41,759 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:52:41,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733389725] [2022-11-25 23:52:41,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733389725] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:52:41,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:52:41,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:52:41,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678949040] [2022-11-25 23:52:41,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:52:41,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:52:41,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:52:41,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:52:41,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:52:41,762 INFO L87 Difference]: Start difference. First operand 204 states and 303 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:52:41,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:52:41,879 INFO L93 Difference]: Finished difference Result 208 states and 309 transitions. [2022-11-25 23:52:41,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:52:41,879 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2022-11-25 23:52:41,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:52:41,882 INFO L225 Difference]: With dead ends: 208 [2022-11-25 23:52:41,882 INFO L226 Difference]: Without dead ends: 207 [2022-11-25 23:52:41,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:52:41,889 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 20 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:52:41,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 629 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:52:41,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-11-25 23:52:41,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 174. [2022-11-25 23:52:41,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 123 states have (on average 1.4715447154471544) internal successors, (181), 132 states have internal predecessors, (181), 38 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-11-25 23:52:41,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 257 transitions. [2022-11-25 23:52:41,928 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 257 transitions. Word has length 27 [2022-11-25 23:52:41,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:52:41,930 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 257 transitions. [2022-11-25 23:52:41,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:52:41,931 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 257 transitions. [2022-11-25 23:52:41,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-25 23:52:41,935 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:52:41,936 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:52:41,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 23:52:41,936 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:52:41,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:52:41,937 INFO L85 PathProgramCache]: Analyzing trace with hash -449885922, now seen corresponding path program 1 times [2022-11-25 23:52:41,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:52:41,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660391041] [2022-11-25 23:52:41,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:41,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:52:41,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:42,156 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-25 23:52:42,156 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:52:42,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660391041] [2022-11-25 23:52:42,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660391041] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:52:42,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822916446] [2022-11-25 23:52:42,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:42,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:52:42,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:52:42,159 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:52:42,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 23:52:42,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:42,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:52:42,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:52:42,401 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-25 23:52:42,412 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:52:42,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822916446] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:52:42,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:52:42,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2022-11-25 23:52:42,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891019496] [2022-11-25 23:52:42,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:52:42,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:52:42,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:52:42,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:52:42,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:52:42,417 INFO L87 Difference]: Start difference. First operand 174 states and 257 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 23:52:42,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:52:42,561 INFO L93 Difference]: Finished difference Result 299 states and 447 transitions. [2022-11-25 23:52:42,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:52:42,562 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 79 [2022-11-25 23:52:42,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:52:42,568 INFO L225 Difference]: With dead ends: 299 [2022-11-25 23:52:42,568 INFO L226 Difference]: Without dead ends: 181 [2022-11-25 23:52:42,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:52:42,575 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 20 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:52:42,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 625 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:52:42,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-11-25 23:52:42,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2022-11-25 23:52:42,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 128 states have (on average 1.4765625) internal successors, (189), 138 states have internal predecessors, (189), 39 states have call successors, (39), 8 states have call predecessors, (39), 8 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2022-11-25 23:52:42,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 267 transitions. [2022-11-25 23:52:42,620 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 267 transitions. Word has length 79 [2022-11-25 23:52:42,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:52:42,622 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 267 transitions. [2022-11-25 23:52:42,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 23:52:42,623 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 267 transitions. [2022-11-25 23:52:42,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-25 23:52:42,634 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:52:42,635 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:52:42,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 23:52:42,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:52:42,836 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:52:42,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:52:42,837 INFO L85 PathProgramCache]: Analyzing trace with hash 468465830, now seen corresponding path program 1 times [2022-11-25 23:52:42,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:52:42,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948880819] [2022-11-25 23:52:42,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:42,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:52:42,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:43,085 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-25 23:52:43,085 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:52:43,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948880819] [2022-11-25 23:52:43,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948880819] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:52:43,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145205739] [2022-11-25 23:52:43,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:43,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:52:43,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:52:43,095 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:52:43,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 23:52:43,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:43,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:52:43,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:52:43,361 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 23:52:43,362 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:52:43,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145205739] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:52:43,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:52:43,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2022-11-25 23:52:43,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382270447] [2022-11-25 23:52:43,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:52:43,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:52:43,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:52:43,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:52:43,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:52:43,373 INFO L87 Difference]: Start difference. First operand 181 states and 267 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 23:52:43,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:52:43,490 INFO L93 Difference]: Finished difference Result 313 states and 466 transitions. [2022-11-25 23:52:43,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:52:43,491 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 81 [2022-11-25 23:52:43,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:52:43,496 INFO L225 Difference]: With dead ends: 313 [2022-11-25 23:52:43,497 INFO L226 Difference]: Without dead ends: 188 [2022-11-25 23:52:43,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:52:43,500 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 18 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:52:43,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 625 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:52:43,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-11-25 23:52:43,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2022-11-25 23:52:43,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 133 states have (on average 1.481203007518797) internal successors, (197), 144 states have internal predecessors, (197), 40 states have call successors, (40), 9 states have call predecessors, (40), 9 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2022-11-25 23:52:43,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 277 transitions. [2022-11-25 23:52:43,529 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 277 transitions. Word has length 81 [2022-11-25 23:52:43,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:52:43,530 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 277 transitions. [2022-11-25 23:52:43,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 23:52:43,531 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 277 transitions. [2022-11-25 23:52:43,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-25 23:52:43,537 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:52:43,538 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:52:43,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 23:52:43,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:52:43,745 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:52:43,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:52:43,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1097714623, now seen corresponding path program 1 times [2022-11-25 23:52:43,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:52:43,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253167401] [2022-11-25 23:52:43,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:43,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:52:43,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:43,905 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-25 23:52:43,905 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:52:43,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253167401] [2022-11-25 23:52:43,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253167401] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:52:43,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178857390] [2022-11-25 23:52:43,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:43,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:52:43,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:52:43,908 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:52:43,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 23:52:44,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:44,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:52:44,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:52:44,120 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-25 23:52:44,121 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:52:44,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178857390] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:52:44,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:52:44,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2022-11-25 23:52:44,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967705225] [2022-11-25 23:52:44,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:52:44,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:52:44,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:52:44,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:52:44,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:52:44,134 INFO L87 Difference]: Start difference. First operand 188 states and 277 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 23:52:44,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:52:44,279 INFO L93 Difference]: Finished difference Result 367 states and 552 transitions. [2022-11-25 23:52:44,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:52:44,280 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 82 [2022-11-25 23:52:44,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:52:44,282 INFO L225 Difference]: With dead ends: 367 [2022-11-25 23:52:44,283 INFO L226 Difference]: Without dead ends: 196 [2022-11-25 23:52:44,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:52:44,285 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 23 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:52:44,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 603 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:52:44,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-11-25 23:52:44,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2022-11-25 23:52:44,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 139 states have (on average 1.4820143884892085) internal successors, (206), 150 states have internal predecessors, (206), 41 states have call successors, (41), 10 states have call predecessors, (41), 10 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-11-25 23:52:44,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 288 transitions. [2022-11-25 23:52:44,315 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 288 transitions. Word has length 82 [2022-11-25 23:52:44,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:52:44,317 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 288 transitions. [2022-11-25 23:52:44,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 23:52:44,318 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 288 transitions. [2022-11-25 23:52:44,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-25 23:52:44,320 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:52:44,321 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:52:44,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 23:52:44,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:52:44,534 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:52:44,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:52:44,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1042020429, now seen corresponding path program 1 times [2022-11-25 23:52:44,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:52:44,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438490729] [2022-11-25 23:52:44,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:44,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:52:44,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:44,691 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-11-25 23:52:44,691 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:52:44,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438490729] [2022-11-25 23:52:44,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438490729] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:52:44,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326697701] [2022-11-25 23:52:44,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:44,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:52:44,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:52:44,694 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:52:44,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 23:52:44,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:44,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:52:44,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:52:44,921 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-25 23:52:44,921 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:52:44,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326697701] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:52:44,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:52:44,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2022-11-25 23:52:44,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638786772] [2022-11-25 23:52:44,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:52:44,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:52:44,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:52:44,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:52:44,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:52:44,925 INFO L87 Difference]: Start difference. First operand 196 states and 288 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 23:52:45,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:52:45,051 INFO L93 Difference]: Finished difference Result 383 states and 571 transitions. [2022-11-25 23:52:45,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:52:45,052 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 84 [2022-11-25 23:52:45,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:52:45,054 INFO L225 Difference]: With dead ends: 383 [2022-11-25 23:52:45,055 INFO L226 Difference]: Without dead ends: 204 [2022-11-25 23:52:45,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:52:45,056 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 21 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:52:45,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 603 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:52:45,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-11-25 23:52:45,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2022-11-25 23:52:45,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 145 states have (on average 1.4827586206896552) internal successors, (215), 156 states have internal predecessors, (215), 42 states have call successors, (42), 11 states have call predecessors, (42), 11 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2022-11-25 23:52:45,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 299 transitions. [2022-11-25 23:52:45,072 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 299 transitions. Word has length 84 [2022-11-25 23:52:45,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:52:45,072 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 299 transitions. [2022-11-25 23:52:45,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 23:52:45,073 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 299 transitions. [2022-11-25 23:52:45,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-25 23:52:45,083 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:52:45,083 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:52:45,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 23:52:45,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:52:45,296 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:52:45,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:52:45,296 INFO L85 PathProgramCache]: Analyzing trace with hash -272384222, now seen corresponding path program 1 times [2022-11-25 23:52:45,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:52:45,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458747610] [2022-11-25 23:52:45,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:45,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:52:45,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:45,425 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-11-25 23:52:45,425 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:52:45,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458747610] [2022-11-25 23:52:45,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458747610] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:52:45,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [98620189] [2022-11-25 23:52:45,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:45,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:52:45,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:52:45,428 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:52:45,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 23:52:45,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:45,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:52:45,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:52:45,641 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-25 23:52:45,641 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:52:45,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [98620189] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:52:45,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:52:45,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-11-25 23:52:45,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938858402] [2022-11-25 23:52:45,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:52:45,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:52:45,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:52:45,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:52:45,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:52:45,644 INFO L87 Difference]: Start difference. First operand 204 states and 299 transitions. Second operand has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 23:52:45,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:52:45,742 INFO L93 Difference]: Finished difference Result 273 states and 412 transitions. [2022-11-25 23:52:45,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:52:45,743 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 85 [2022-11-25 23:52:45,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:52:45,746 INFO L225 Difference]: With dead ends: 273 [2022-11-25 23:52:45,746 INFO L226 Difference]: Without dead ends: 272 [2022-11-25 23:52:45,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:52:45,750 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 85 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:52:45,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 814 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:52:45,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2022-11-25 23:52:45,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 203. [2022-11-25 23:52:45,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 145 states have (on average 1.4758620689655173) internal successors, (214), 155 states have internal predecessors, (214), 42 states have call successors, (42), 11 states have call predecessors, (42), 11 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2022-11-25 23:52:45,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 298 transitions. [2022-11-25 23:52:45,771 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 298 transitions. Word has length 85 [2022-11-25 23:52:45,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:52:45,773 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 298 transitions. [2022-11-25 23:52:45,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 23:52:45,773 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 298 transitions. [2022-11-25 23:52:45,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-25 23:52:45,776 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:52:45,777 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:52:45,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 23:52:45,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:52:45,986 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:52:45,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:52:45,986 INFO L85 PathProgramCache]: Analyzing trace with hash 146024024, now seen corresponding path program 1 times [2022-11-25 23:52:45,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:52:45,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945548240] [2022-11-25 23:52:45,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:45,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:52:46,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:46,099 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-11-25 23:52:46,099 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:52:46,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945548240] [2022-11-25 23:52:46,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945548240] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:52:46,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894346814] [2022-11-25 23:52:46,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:46,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:52:46,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:52:46,101 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:52:46,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 23:52:46,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:46,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:52:46,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:52:46,328 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-25 23:52:46,328 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:52:46,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [894346814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:52:46,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:52:46,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-11-25 23:52:46,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705858568] [2022-11-25 23:52:46,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:52:46,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:52:46,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:52:46,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:52:46,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:52:46,334 INFO L87 Difference]: Start difference. First operand 203 states and 298 transitions. Second operand has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 23:52:46,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:52:46,438 INFO L93 Difference]: Finished difference Result 397 states and 593 transitions. [2022-11-25 23:52:46,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:52:46,439 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 86 [2022-11-25 23:52:46,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:52:46,442 INFO L225 Difference]: With dead ends: 397 [2022-11-25 23:52:46,442 INFO L226 Difference]: Without dead ends: 250 [2022-11-25 23:52:46,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:52:46,445 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 52 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:52:46,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 742 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:52:46,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-11-25 23:52:46,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 213. [2022-11-25 23:52:46,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 154 states have (on average 1.474025974025974) internal successors, (227), 163 states have internal predecessors, (227), 44 states have call successors, (44), 11 states have call predecessors, (44), 11 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-11-25 23:52:46,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 315 transitions. [2022-11-25 23:52:46,465 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 315 transitions. Word has length 86 [2022-11-25 23:52:46,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:52:46,466 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 315 transitions. [2022-11-25 23:52:46,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 23:52:46,466 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 315 transitions. [2022-11-25 23:52:46,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-25 23:52:46,468 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:52:46,469 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:52:46,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 23:52:46,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 23:52:46,676 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:52:46,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:52:46,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1633896994, now seen corresponding path program 1 times [2022-11-25 23:52:46,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:52:46,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292885686] [2022-11-25 23:52:46,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:46,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:52:46,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:46,806 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-25 23:52:46,806 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:52:46,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292885686] [2022-11-25 23:52:46,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292885686] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:52:46,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337966248] [2022-11-25 23:52:46,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:46,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:52:46,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:52:46,808 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:52:46,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 23:52:46,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:46,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:52:46,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:52:47,032 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-11-25 23:52:47,032 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:52:47,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337966248] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:52:47,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:52:47,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-11-25 23:52:47,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083197973] [2022-11-25 23:52:47,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:52:47,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:52:47,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:52:47,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:52:47,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:52:47,036 INFO L87 Difference]: Start difference. First operand 213 states and 315 transitions. Second operand has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 23:52:47,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:52:47,144 INFO L93 Difference]: Finished difference Result 286 states and 432 transitions. [2022-11-25 23:52:47,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:52:47,145 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 92 [2022-11-25 23:52:47,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:52:47,147 INFO L225 Difference]: With dead ends: 286 [2022-11-25 23:52:47,148 INFO L226 Difference]: Without dead ends: 285 [2022-11-25 23:52:47,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:52:47,149 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 79 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:52:47,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 823 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:52:47,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-11-25 23:52:47,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 214. [2022-11-25 23:52:47,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 155 states have (on average 1.4709677419354839) internal successors, (228), 164 states have internal predecessors, (228), 44 states have call successors, (44), 11 states have call predecessors, (44), 11 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-11-25 23:52:47,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 316 transitions. [2022-11-25 23:52:47,167 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 316 transitions. Word has length 92 [2022-11-25 23:52:47,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:52:47,170 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 316 transitions. [2022-11-25 23:52:47,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 23:52:47,170 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 316 transitions. [2022-11-25 23:52:47,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-25 23:52:47,172 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:52:47,173 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:52:47,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 23:52:47,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-25 23:52:47,379 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:52:47,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:52:47,380 INFO L85 PathProgramCache]: Analyzing trace with hash -888800412, now seen corresponding path program 1 times [2022-11-25 23:52:47,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:52:47,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696130913] [2022-11-25 23:52:47,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:47,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:52:47,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:47,489 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-25 23:52:47,489 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:52:47,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696130913] [2022-11-25 23:52:47,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696130913] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:52:47,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957867437] [2022-11-25 23:52:47,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:47,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:52:47,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:52:47,491 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:52:47,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-25 23:52:47,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:47,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:52:47,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:52:47,709 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-11-25 23:52:47,709 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:52:47,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957867437] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:52:47,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:52:47,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-11-25 23:52:47,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019061634] [2022-11-25 23:52:47,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:52:47,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:52:47,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:52:47,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:52:47,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:52:47,712 INFO L87 Difference]: Start difference. First operand 214 states and 316 transitions. Second operand has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 23:52:47,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:52:47,807 INFO L93 Difference]: Finished difference Result 249 states and 370 transitions. [2022-11-25 23:52:47,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:52:47,808 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 93 [2022-11-25 23:52:47,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:52:47,810 INFO L225 Difference]: With dead ends: 249 [2022-11-25 23:52:47,810 INFO L226 Difference]: Without dead ends: 248 [2022-11-25 23:52:47,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:52:47,811 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 48 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:52:47,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 733 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:52:47,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-11-25 23:52:47,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 215. [2022-11-25 23:52:47,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 156 states have (on average 1.4679487179487178) internal successors, (229), 165 states have internal predecessors, (229), 44 states have call successors, (44), 11 states have call predecessors, (44), 11 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-11-25 23:52:47,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 317 transitions. [2022-11-25 23:52:47,825 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 317 transitions. Word has length 93 [2022-11-25 23:52:47,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:52:47,826 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 317 transitions. [2022-11-25 23:52:47,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 23:52:47,826 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 317 transitions. [2022-11-25 23:52:47,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-25 23:52:47,828 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:52:47,829 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:52:47,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-25 23:52:48,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-25 23:52:48,035 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:52:48,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:52:48,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1951639650, now seen corresponding path program 1 times [2022-11-25 23:52:48,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:52:48,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13826689] [2022-11-25 23:52:48,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:48,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:52:48,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:48,154 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-25 23:52:48,154 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:52:48,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13826689] [2022-11-25 23:52:48,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13826689] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:52:48,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1745122000] [2022-11-25 23:52:48,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:48,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:52:48,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:52:48,157 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:52:48,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-25 23:52:48,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:48,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 23:52:48,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:52:48,408 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-11-25 23:52:48,408 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:52:48,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1745122000] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:52:48,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:52:48,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2022-11-25 23:52:48,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031922417] [2022-11-25 23:52:48,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:52:48,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:52:48,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:52:48,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:52:48,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:52:48,412 INFO L87 Difference]: Start difference. First operand 215 states and 317 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-25 23:52:48,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:52:48,640 INFO L93 Difference]: Finished difference Result 317 states and 482 transitions. [2022-11-25 23:52:48,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:52:48,641 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 94 [2022-11-25 23:52:48,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:52:48,644 INFO L225 Difference]: With dead ends: 317 [2022-11-25 23:52:48,644 INFO L226 Difference]: Without dead ends: 316 [2022-11-25 23:52:48,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-25 23:52:48,646 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 198 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:52:48,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 1212 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:52:48,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-11-25 23:52:48,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 214. [2022-11-25 23:52:48,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 156 states have (on average 1.4615384615384615) internal successors, (228), 164 states have internal predecessors, (228), 44 states have call successors, (44), 11 states have call predecessors, (44), 11 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-11-25 23:52:48,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 316 transitions. [2022-11-25 23:52:48,661 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 316 transitions. Word has length 94 [2022-11-25 23:52:48,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:52:48,662 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 316 transitions. [2022-11-25 23:52:48,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-25 23:52:48,662 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 316 transitions. [2022-11-25 23:52:48,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-25 23:52:48,664 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:52:48,665 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:52:48,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-25 23:52:48,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:52:48,871 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:52:48,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:52:48,872 INFO L85 PathProgramCache]: Analyzing trace with hash -371286680, now seen corresponding path program 1 times [2022-11-25 23:52:48,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:52:48,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551257477] [2022-11-25 23:52:48,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:48,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:52:48,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:48,996 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-25 23:52:48,996 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:52:48,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551257477] [2022-11-25 23:52:48,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551257477] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:52:48,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962453756] [2022-11-25 23:52:48,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:48,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:52:48,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:52:48,999 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:52:49,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-25 23:52:49,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:49,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 23:52:49,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:52:49,238 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-11-25 23:52:49,238 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:52:49,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962453756] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:52:49,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:52:49,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2022-11-25 23:52:49,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152426436] [2022-11-25 23:52:49,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:52:49,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:52:49,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:52:49,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:52:49,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:52:49,243 INFO L87 Difference]: Start difference. First operand 214 states and 316 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-25 23:52:49,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:52:49,488 INFO L93 Difference]: Finished difference Result 473 states and 718 transitions. [2022-11-25 23:52:49,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:52:49,489 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 95 [2022-11-25 23:52:49,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:52:49,491 INFO L225 Difference]: With dead ends: 473 [2022-11-25 23:52:49,491 INFO L226 Difference]: Without dead ends: 315 [2022-11-25 23:52:49,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-11-25 23:52:49,493 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 156 mSDsluCounter, 956 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 1293 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:52:49,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 1293 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:52:49,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-11-25 23:52:49,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 217. [2022-11-25 23:52:49,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 159 states have (on average 1.471698113207547) internal successors, (234), 166 states have internal predecessors, (234), 45 states have call successors, (45), 11 states have call predecessors, (45), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-11-25 23:52:49,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 324 transitions. [2022-11-25 23:52:49,524 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 324 transitions. Word has length 95 [2022-11-25 23:52:49,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:52:49,525 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 324 transitions. [2022-11-25 23:52:49,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-25 23:52:49,525 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 324 transitions. [2022-11-25 23:52:49,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-25 23:52:49,527 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:52:49,528 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:52:49,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-25 23:52:49,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-25 23:52:49,735 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:52:49,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:52:49,735 INFO L85 PathProgramCache]: Analyzing trace with hash -478759498, now seen corresponding path program 1 times [2022-11-25 23:52:49,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:52:49,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782047031] [2022-11-25 23:52:49,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:49,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:52:49,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:49,846 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-25 23:52:49,847 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:52:49,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782047031] [2022-11-25 23:52:49,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782047031] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:52:49,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867388985] [2022-11-25 23:52:49,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:49,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:52:49,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:52:49,849 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:52:49,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-25 23:52:50,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:50,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:52:50,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:52:50,084 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-25 23:52:50,084 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:52:50,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867388985] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:52:50,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:52:50,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-11-25 23:52:50,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340674993] [2022-11-25 23:52:50,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:52:50,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:52:50,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:52:50,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:52:50,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:52:50,087 INFO L87 Difference]: Start difference. First operand 217 states and 324 transitions. Second operand has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 23:52:50,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:52:50,201 INFO L93 Difference]: Finished difference Result 286 states and 435 transitions. [2022-11-25 23:52:50,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:52:50,202 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 99 [2022-11-25 23:52:50,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:52:50,205 INFO L225 Difference]: With dead ends: 286 [2022-11-25 23:52:50,205 INFO L226 Difference]: Without dead ends: 285 [2022-11-25 23:52:50,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:52:50,207 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 74 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:52:50,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 841 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:52:50,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-11-25 23:52:50,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 218. [2022-11-25 23:52:50,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 160 states have (on average 1.46875) internal successors, (235), 167 states have internal predecessors, (235), 45 states have call successors, (45), 11 states have call predecessors, (45), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-11-25 23:52:50,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 325 transitions. [2022-11-25 23:52:50,222 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 325 transitions. Word has length 99 [2022-11-25 23:52:50,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:52:50,222 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 325 transitions. [2022-11-25 23:52:50,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 23:52:50,223 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 325 transitions. [2022-11-25 23:52:50,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-25 23:52:50,225 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:52:50,225 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:52:50,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-25 23:52:50,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-25 23:52:50,433 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:52:50,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:52:50,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1956642212, now seen corresponding path program 1 times [2022-11-25 23:52:50,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:52:50,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974469478] [2022-11-25 23:52:50,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:50,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:52:50,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:50,551 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-25 23:52:50,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:52:50,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974469478] [2022-11-25 23:52:50,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974469478] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:52:50,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724023993] [2022-11-25 23:52:50,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:50,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:52:50,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:52:50,554 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:52:50,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-25 23:52:50,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:50,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:52:50,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:52:50,792 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-25 23:52:50,792 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:52:50,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1724023993] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:52:50,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:52:50,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-11-25 23:52:50,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795356415] [2022-11-25 23:52:50,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:52:50,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:52:50,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:52:50,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:52:50,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:52:50,795 INFO L87 Difference]: Start difference. First operand 218 states and 325 transitions. Second operand has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 23:52:50,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:52:50,897 INFO L93 Difference]: Finished difference Result 252 states and 378 transitions. [2022-11-25 23:52:50,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:52:50,898 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 100 [2022-11-25 23:52:50,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:52:50,900 INFO L225 Difference]: With dead ends: 252 [2022-11-25 23:52:50,900 INFO L226 Difference]: Without dead ends: 251 [2022-11-25 23:52:50,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:52:50,901 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 44 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:52:50,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 730 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:52:50,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-11-25 23:52:50,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 219. [2022-11-25 23:52:50,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 161 states have (on average 1.4658385093167703) internal successors, (236), 168 states have internal predecessors, (236), 45 states have call successors, (45), 11 states have call predecessors, (45), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-11-25 23:52:50,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 326 transitions. [2022-11-25 23:52:50,915 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 326 transitions. Word has length 100 [2022-11-25 23:52:50,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:52:50,915 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 326 transitions. [2022-11-25 23:52:50,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 23:52:50,916 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 326 transitions. [2022-11-25 23:52:50,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-25 23:52:50,918 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:52:50,918 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:52:50,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-25 23:52:51,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-25 23:52:51,132 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:52:51,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:52:51,133 INFO L85 PathProgramCache]: Analyzing trace with hash 90621114, now seen corresponding path program 1 times [2022-11-25 23:52:51,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:52:51,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349009848] [2022-11-25 23:52:51,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:51,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:52:51,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:51,266 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-25 23:52:51,267 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:52:51,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349009848] [2022-11-25 23:52:51,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349009848] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:52:51,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486695878] [2022-11-25 23:52:51,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:51,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:52:51,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:52:51,269 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:52:51,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-25 23:52:51,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:51,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 23:52:51,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:52:51,527 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-25 23:52:51,527 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:52:51,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [486695878] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:52:51,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:52:51,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2022-11-25 23:52:51,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259227785] [2022-11-25 23:52:51,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:52:51,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:52:51,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:52:51,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:52:51,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:52:51,530 INFO L87 Difference]: Start difference. First operand 219 states and 326 transitions. Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-25 23:52:51,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:52:51,785 INFO L93 Difference]: Finished difference Result 317 states and 485 transitions. [2022-11-25 23:52:51,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:52:51,786 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 101 [2022-11-25 23:52:51,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:52:51,788 INFO L225 Difference]: With dead ends: 317 [2022-11-25 23:52:51,789 INFO L226 Difference]: Without dead ends: 316 [2022-11-25 23:52:51,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-25 23:52:51,790 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 152 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 1319 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:52:51,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 1319 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:52:51,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-11-25 23:52:51,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 220. [2022-11-25 23:52:51,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 162 states have (on average 1.462962962962963) internal successors, (237), 169 states have internal predecessors, (237), 45 states have call successors, (45), 11 states have call predecessors, (45), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-11-25 23:52:51,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 327 transitions. [2022-11-25 23:52:51,805 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 327 transitions. Word has length 101 [2022-11-25 23:52:51,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:52:51,806 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 327 transitions. [2022-11-25 23:52:51,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-25 23:52:51,806 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 327 transitions. [2022-11-25 23:52:51,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-25 23:52:51,808 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:52:51,808 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:52:51,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-25 23:52:52,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-25 23:52:52,022 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:52:52,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:52:52,023 INFO L85 PathProgramCache]: Analyzing trace with hash 542233010, now seen corresponding path program 1 times [2022-11-25 23:52:52,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:52:52,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085937634] [2022-11-25 23:52:52,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:52,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:52:52,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:52,144 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-25 23:52:52,145 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:52:52,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085937634] [2022-11-25 23:52:52,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085937634] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:52:52,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2135688693] [2022-11-25 23:52:52,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:52,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:52:52,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:52:52,147 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:52:52,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-25 23:52:52,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:52,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 23:52:52,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:52:52,371 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-25 23:52:52,371 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:52:52,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2135688693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:52:52,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:52:52,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-11-25 23:52:52,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484270805] [2022-11-25 23:52:52,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:52:52,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:52:52,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:52:52,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:52:52,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:52:52,374 INFO L87 Difference]: Start difference. First operand 220 states and 327 transitions. Second operand has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 23:52:52,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:52:52,533 INFO L93 Difference]: Finished difference Result 287 states and 436 transitions. [2022-11-25 23:52:52,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:52:52,534 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 101 [2022-11-25 23:52:52,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:52:52,536 INFO L225 Difference]: With dead ends: 287 [2022-11-25 23:52:52,537 INFO L226 Difference]: Without dead ends: 286 [2022-11-25 23:52:52,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-25 23:52:52,538 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 81 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 1115 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:52:52,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 1115 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:52:52,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-11-25 23:52:52,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 218. [2022-11-25 23:52:52,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 161 states have (on average 1.4596273291925466) internal successors, (235), 167 states have internal predecessors, (235), 45 states have call successors, (45), 11 states have call predecessors, (45), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-11-25 23:52:52,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 325 transitions. [2022-11-25 23:52:52,552 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 325 transitions. Word has length 101 [2022-11-25 23:52:52,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:52:52,552 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 325 transitions. [2022-11-25 23:52:52,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 23:52:52,553 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 325 transitions. [2022-11-25 23:52:52,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-25 23:52:52,555 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:52:52,555 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:52:52,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-25 23:52:52,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-25 23:52:52,761 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:52:52,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:52:52,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1485712424, now seen corresponding path program 1 times [2022-11-25 23:52:52,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:52:52,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786468122] [2022-11-25 23:52:52,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:52,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:52:52,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:52,907 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-25 23:52:52,908 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:52:52,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786468122] [2022-11-25 23:52:52,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786468122] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:52:52,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218042842] [2022-11-25 23:52:52,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:52,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:52:52,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:52:52,910 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:52:52,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-25 23:52:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:53,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 23:52:53,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:52:53,156 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-25 23:52:53,156 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:52:53,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218042842] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:52:53,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:52:53,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2022-11-25 23:52:53,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264734975] [2022-11-25 23:52:53,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:52:53,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:52:53,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:52:53,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:52:53,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:52:53,159 INFO L87 Difference]: Start difference. First operand 218 states and 325 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-25 23:52:53,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:52:53,390 INFO L93 Difference]: Finished difference Result 311 states and 475 transitions. [2022-11-25 23:52:53,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:52:53,391 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 102 [2022-11-25 23:52:53,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:52:53,394 INFO L225 Difference]: With dead ends: 311 [2022-11-25 23:52:53,394 INFO L226 Difference]: Without dead ends: 310 [2022-11-25 23:52:53,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-11-25 23:52:53,396 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 118 mSDsluCounter, 1171 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:52:53,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 1508 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:52:53,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2022-11-25 23:52:53,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 218. [2022-11-25 23:52:53,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 161 states have (on average 1.4596273291925466) internal successors, (235), 167 states have internal predecessors, (235), 45 states have call successors, (45), 11 states have call predecessors, (45), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-11-25 23:52:53,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 325 transitions. [2022-11-25 23:52:53,410 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 325 transitions. Word has length 102 [2022-11-25 23:52:53,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:52:53,410 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 325 transitions. [2022-11-25 23:52:53,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-25 23:52:53,411 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 325 transitions. [2022-11-25 23:52:53,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-25 23:52:53,413 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:52:53,413 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:52:53,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-25 23:52:53,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:52:53,620 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:52:53,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:52:53,621 INFO L85 PathProgramCache]: Analyzing trace with hash -370645536, now seen corresponding path program 1 times [2022-11-25 23:52:53,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:52:53,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708197702] [2022-11-25 23:52:53,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:53,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:52:53,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:53,742 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-25 23:52:53,742 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:52:53,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708197702] [2022-11-25 23:52:53,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708197702] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:52:53,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566142819] [2022-11-25 23:52:53,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:53,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:52:53,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:52:53,745 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:52:53,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-25 23:52:53,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:53,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 23:52:53,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:52:53,995 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-25 23:52:53,995 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:52:53,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566142819] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:52:53,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:52:53,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2022-11-25 23:52:53,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328992734] [2022-11-25 23:52:53,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:52:53,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:52:53,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:52:53,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:52:53,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:52:53,998 INFO L87 Difference]: Start difference. First operand 218 states and 325 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-25 23:52:54,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:52:54,243 INFO L93 Difference]: Finished difference Result 481 states and 736 transitions. [2022-11-25 23:52:54,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:52:54,244 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 102 [2022-11-25 23:52:54,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:52:54,247 INFO L225 Difference]: With dead ends: 481 [2022-11-25 23:52:54,247 INFO L226 Difference]: Without dead ends: 319 [2022-11-25 23:52:54,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-11-25 23:52:54,252 INFO L413 NwaCegarLoop]: 343 mSDtfsCounter, 112 mSDsluCounter, 1198 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1541 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:52:54,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 1541 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:52:54,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2022-11-25 23:52:54,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 220. [2022-11-25 23:52:54,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 163 states have (on average 1.4539877300613497) internal successors, (237), 169 states have internal predecessors, (237), 45 states have call successors, (45), 11 states have call predecessors, (45), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-11-25 23:52:54,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 327 transitions. [2022-11-25 23:52:54,272 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 327 transitions. Word has length 102 [2022-11-25 23:52:54,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:52:54,273 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 327 transitions. [2022-11-25 23:52:54,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-25 23:52:54,273 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 327 transitions. [2022-11-25 23:52:54,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-25 23:52:54,275 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:52:54,276 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:52:54,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-25 23:52:54,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2022-11-25 23:52:54,482 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:52:54,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:52:54,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1221314652, now seen corresponding path program 1 times [2022-11-25 23:52:54,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:52:54,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566191253] [2022-11-25 23:52:54,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:54,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:52:54,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:54,624 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-25 23:52:54,624 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:52:54,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566191253] [2022-11-25 23:52:54,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566191253] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:52:54,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499519835] [2022-11-25 23:52:54,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:54,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:52:54,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:52:54,627 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:52:54,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-25 23:52:54,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:54,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 23:52:54,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:52:54,913 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-25 23:52:54,913 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:52:54,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499519835] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:52:54,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:52:54,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 11 [2022-11-25 23:52:54,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073331661] [2022-11-25 23:52:54,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:52:54,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:52:54,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:52:54,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:52:54,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-25 23:52:54,917 INFO L87 Difference]: Start difference. First operand 220 states and 327 transitions. Second operand has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-25 23:52:55,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:52:55,288 INFO L93 Difference]: Finished difference Result 381 states and 592 transitions. [2022-11-25 23:52:55,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 23:52:55,290 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 104 [2022-11-25 23:52:55,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:52:55,290 INFO L225 Difference]: With dead ends: 381 [2022-11-25 23:52:55,290 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 23:52:55,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:52:55,292 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 259 mSDsluCounter, 1478 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 1856 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:52:55,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 1856 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 23:52:55,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 23:52:55,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 23:52:55,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:52:55,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 23:52:55,294 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 104 [2022-11-25 23:52:55,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:52:55,294 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 23:52:55,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-25 23:52:55,294 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 23:52:55,294 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 23:52:55,297 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-11-25 23:52:55,298 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-11-25 23:52:55,298 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-11-25 23:52:55,298 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-11-25 23:52:55,298 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-11-25 23:52:55,299 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-11-25 23:52:55,299 INFO L805 garLoopResultBuilder]: Registering result SAFE for location add_history_typeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-11-25 23:52:55,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location add_history_typeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-11-25 23:52:55,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-25 23:52:55,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-11-25 23:52:55,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 23:52:55,847 INFO L902 garLoopResultBuilder]: At program point L119(line 119) the Hoare annotation is: true [2022-11-25 23:52:55,848 INFO L899 garLoopResultBuilder]: For program point L119-1(line 119) no Hoare annotation was computed. [2022-11-25 23:52:55,848 INFO L899 garLoopResultBuilder]: For program point read_history_int8FINAL(lines 104 123) no Hoare annotation was computed. [2022-11-25 23:52:55,848 INFO L899 garLoopResultBuilder]: For program point L109(lines 109 120) no Hoare annotation was computed. [2022-11-25 23:52:55,848 INFO L899 garLoopResultBuilder]: For program point read_history_int8EXIT(lines 104 123) no Hoare annotation was computed. [2022-11-25 23:52:55,848 INFO L902 garLoopResultBuilder]: At program point read_history_int8ENTRY(lines 104 123) the Hoare annotation is: true [2022-11-25 23:52:55,849 INFO L895 garLoopResultBuilder]: At program point L159(line 159) the Hoare annotation is: (<= |read_history_bool_#in~history_id| read_history_bool_~history_id) [2022-11-25 23:52:55,849 INFO L899 garLoopResultBuilder]: For program point L159-1(line 159) no Hoare annotation was computed. [2022-11-25 23:52:55,849 INFO L899 garLoopResultBuilder]: For program point L149(lines 149 160) no Hoare annotation was computed. [2022-11-25 23:52:55,849 INFO L899 garLoopResultBuilder]: For program point read_history_boolFINAL(lines 124 163) no Hoare annotation was computed. [2022-11-25 23:52:55,850 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 160) no Hoare annotation was computed. [2022-11-25 23:52:55,850 INFO L899 garLoopResultBuilder]: For program point read_history_boolEXIT(lines 124 163) no Hoare annotation was computed. [2022-11-25 23:52:55,850 INFO L902 garLoopResultBuilder]: At program point read_history_boolENTRY(lines 124 163) the Hoare annotation is: true [2022-11-25 23:52:55,850 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 160) no Hoare annotation was computed. [2022-11-25 23:52:55,850 INFO L902 garLoopResultBuilder]: At program point assertENTRY(lines 530 541) the Hoare annotation is: true [2022-11-25 23:52:55,851 INFO L899 garLoopResultBuilder]: For program point assertEXIT(lines 530 541) no Hoare annotation was computed. [2022-11-25 23:52:55,851 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 277) no Hoare annotation was computed. [2022-11-25 23:52:55,851 INFO L899 garLoopResultBuilder]: For program point L217(lines 217 219) no Hoare annotation was computed. [2022-11-25 23:52:55,851 INFO L899 garLoopResultBuilder]: For program point L465(lines 465 472) no Hoare annotation was computed. [2022-11-25 23:52:55,851 INFO L899 garLoopResultBuilder]: For program point L267(lines 267 301) no Hoare annotation was computed. [2022-11-25 23:52:55,852 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 23:52:55,852 INFO L899 garLoopResultBuilder]: For program point L284(lines 284 294) no Hoare annotation was computed. [2022-11-25 23:52:55,852 INFO L902 garLoopResultBuilder]: At program point L367(lines 339 369) the Hoare annotation is: true [2022-11-25 23:52:55,852 INFO L902 garLoopResultBuilder]: At program point L268(line 268) the Hoare annotation is: true [2022-11-25 23:52:55,852 INFO L899 garLoopResultBuilder]: For program point L268-1(line 268) no Hoare annotation was computed. [2022-11-25 23:52:55,853 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 175) no Hoare annotation was computed. [2022-11-25 23:52:55,853 INFO L899 garLoopResultBuilder]: For program point L285(lines 285 291) no Hoare annotation was computed. [2022-11-25 23:52:55,853 INFO L899 garLoopResultBuilder]: For program point L269(lines 269 300) no Hoare annotation was computed. [2022-11-25 23:52:55,853 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 288) no Hoare annotation was computed. [2022-11-25 23:52:55,853 INFO L902 garLoopResultBuilder]: At program point L220(line 220) the Hoare annotation is: true [2022-11-25 23:52:55,853 INFO L899 garLoopResultBuilder]: For program point L220-1(line 220) no Hoare annotation was computed. [2022-11-25 23:52:55,854 INFO L899 garLoopResultBuilder]: For program point L468(lines 468 472) no Hoare annotation was computed. [2022-11-25 23:52:55,854 INFO L902 garLoopResultBuilder]: At program point L336(lines 231 338) the Hoare annotation is: true [2022-11-25 23:52:55,854 INFO L899 garLoopResultBuilder]: For program point L303(line 303) no Hoare annotation was computed. [2022-11-25 23:52:55,854 INFO L899 garLoopResultBuilder]: For program point L221(lines 221 223) no Hoare annotation was computed. [2022-11-25 23:52:55,854 INFO L899 garLoopResultBuilder]: For program point L304(lines 304 322) no Hoare annotation was computed. [2022-11-25 23:52:55,855 INFO L895 garLoopResultBuilder]: At program point L271(line 271) the Hoare annotation is: (and (<= |ULTIMATE.start_check_~temp_count~0#1| 0) (<= 0 |ULTIMATE.start_check_~temp_count~0#1|)) [2022-11-25 23:52:55,855 INFO L902 garLoopResultBuilder]: At program point L304-1(lines 304 322) the Hoare annotation is: true [2022-11-25 23:52:55,855 INFO L899 garLoopResultBuilder]: For program point L271-1(line 271) no Hoare annotation was computed. [2022-11-25 23:52:55,855 INFO L902 garLoopResultBuilder]: At program point L503(line 503) the Hoare annotation is: true [2022-11-25 23:52:55,856 INFO L899 garLoopResultBuilder]: For program point L503-1(line 503) no Hoare annotation was computed. [2022-11-25 23:52:55,856 INFO L902 garLoopResultBuilder]: At program point L305(line 305) the Hoare annotation is: true [2022-11-25 23:52:55,856 INFO L899 garLoopResultBuilder]: For program point L272(lines 272 274) no Hoare annotation was computed. [2022-11-25 23:52:55,856 INFO L899 garLoopResultBuilder]: For program point L305-1(line 305) no Hoare annotation was computed. [2022-11-25 23:52:55,856 INFO L895 garLoopResultBuilder]: At program point L272-2(lines 272 274) the Hoare annotation is: (or (and (<= |ULTIMATE.start_check_~temp_count~0#1| 0) (<= 0 |ULTIMATE.start_check_~temp_count~0#1|)) (and (<= 1 |ULTIMATE.start_check_~temp_count~0#1|) (<= |ULTIMATE.start_check_~temp_count~0#1| 1))) [2022-11-25 23:52:55,857 INFO L899 garLoopResultBuilder]: For program point L454(lines 454 472) no Hoare annotation was computed. [2022-11-25 23:52:55,857 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 23:52:55,857 INFO L902 garLoopResultBuilder]: At program point L471(line 471) the Hoare annotation is: true [2022-11-25 23:52:55,857 INFO L899 garLoopResultBuilder]: For program point L471-1(lines 444 472) no Hoare annotation was computed. [2022-11-25 23:52:55,857 INFO L899 garLoopResultBuilder]: For program point L306(lines 306 321) no Hoare annotation was computed. [2022-11-25 23:52:55,857 INFO L899 garLoopResultBuilder]: For program point L273(line 273) no Hoare annotation was computed. [2022-11-25 23:52:55,858 INFO L899 garLoopResultBuilder]: For program point L273-1(line 273) no Hoare annotation was computed. [2022-11-25 23:52:55,858 INFO L902 garLoopResultBuilder]: At program point L174(line 174) the Hoare annotation is: true [2022-11-25 23:52:55,858 INFO L902 garLoopResultBuilder]: At program point L174-1(lines 164 178) the Hoare annotation is: true [2022-11-25 23:52:55,858 INFO L902 garLoopResultBuilder]: At program point L422-2(lines 416 426) the Hoare annotation is: true [2022-11-25 23:52:55,858 INFO L899 garLoopResultBuilder]: For program point L323(line 323) no Hoare annotation was computed. [2022-11-25 23:52:55,859 INFO L902 garLoopResultBuilder]: At program point L224(line 224) the Hoare annotation is: true [2022-11-25 23:52:55,859 INFO L899 garLoopResultBuilder]: For program point L224-1(line 224) no Hoare annotation was computed. [2022-11-25 23:52:55,859 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 277) no Hoare annotation was computed. [2022-11-25 23:52:55,859 INFO L902 garLoopResultBuilder]: At program point L307(line 307) the Hoare annotation is: true [2022-11-25 23:52:55,859 INFO L899 garLoopResultBuilder]: For program point L307-1(line 307) no Hoare annotation was computed. [2022-11-25 23:52:55,860 INFO L899 garLoopResultBuilder]: For program point L324(lines 324 335) no Hoare annotation was computed. [2022-11-25 23:52:55,860 INFO L899 garLoopResultBuilder]: For program point L324-1(lines 324 335) no Hoare annotation was computed. [2022-11-25 23:52:55,860 INFO L902 garLoopResultBuilder]: At program point L258-2(lines 252 262) the Hoare annotation is: true [2022-11-25 23:52:55,860 INFO L899 garLoopResultBuilder]: For program point L308(lines 308 320) no Hoare annotation was computed. [2022-11-25 23:52:55,860 INFO L899 garLoopResultBuilder]: For program point L275(line 275) no Hoare annotation was computed. [2022-11-25 23:52:55,861 INFO L902 garLoopResultBuilder]: At program point L391-2(lines 385 395) the Hoare annotation is: true [2022-11-25 23:52:55,861 INFO L902 garLoopResultBuilder]: At program point L325(line 325) the Hoare annotation is: true [2022-11-25 23:52:55,861 INFO L899 garLoopResultBuilder]: For program point L325-1(line 325) no Hoare annotation was computed. [2022-11-25 23:52:55,861 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 273) no Hoare annotation was computed. [2022-11-25 23:52:55,861 INFO L902 garLoopResultBuilder]: At program point L309(line 309) the Hoare annotation is: true [2022-11-25 23:52:55,862 INFO L899 garLoopResultBuilder]: For program point L276(lines 276 278) no Hoare annotation was computed. [2022-11-25 23:52:55,862 INFO L899 garLoopResultBuilder]: For program point L309-1(line 309) no Hoare annotation was computed. [2022-11-25 23:52:55,862 INFO L895 garLoopResultBuilder]: At program point L276-2(lines 276 278) the Hoare annotation is: (and (<= |ULTIMATE.start_check_~temp_count~0#1| 2) (<= 0 (+ |ULTIMATE.start_check_~temp_count~0#1| 2147483648))) [2022-11-25 23:52:55,862 INFO L902 garLoopResultBuilder]: At program point L524(line 524) the Hoare annotation is: true [2022-11-25 23:52:55,862 INFO L902 garLoopResultBuilder]: At program point L524-1(lines 511 526) the Hoare annotation is: true [2022-11-25 23:52:55,863 INFO L899 garLoopResultBuilder]: For program point L326(lines 326 334) no Hoare annotation was computed. [2022-11-25 23:52:55,863 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 273) no Hoare annotation was computed. [2022-11-25 23:52:55,863 INFO L902 garLoopResultBuilder]: At program point L409(line 409) the Hoare annotation is: true [2022-11-25 23:52:55,863 INFO L899 garLoopResultBuilder]: For program point L409-1(lines 407 430) no Hoare annotation was computed. [2022-11-25 23:52:55,863 INFO L899 garLoopResultBuilder]: For program point L310(lines 310 317) no Hoare annotation was computed. [2022-11-25 23:52:55,864 INFO L899 garLoopResultBuilder]: For program point L277(line 277) no Hoare annotation was computed. [2022-11-25 23:52:55,864 INFO L899 garLoopResultBuilder]: For program point L277-1(line 277) no Hoare annotation was computed. [2022-11-25 23:52:55,864 INFO L902 garLoopResultBuilder]: At program point L327(line 327) the Hoare annotation is: true [2022-11-25 23:52:55,864 INFO L902 garLoopResultBuilder]: At program point L360-2(lines 354 364) the Hoare annotation is: true [2022-11-25 23:52:55,864 INFO L899 garLoopResultBuilder]: For program point L327-1(line 327) no Hoare annotation was computed. [2022-11-25 23:52:55,865 INFO L902 garLoopResultBuilder]: At program point L228(lines 204 230) the Hoare annotation is: true [2022-11-25 23:52:55,865 INFO L902 garLoopResultBuilder]: At program point L311(line 311) the Hoare annotation is: true [2022-11-25 23:52:55,865 INFO L899 garLoopResultBuilder]: For program point L311-1(line 311) no Hoare annotation was computed. [2022-11-25 23:52:55,865 INFO L902 garLoopResultBuilder]: At program point L212(line 212) the Hoare annotation is: true [2022-11-25 23:52:55,865 INFO L899 garLoopResultBuilder]: For program point L212-1(line 212) no Hoare annotation was computed. [2022-11-25 23:52:55,866 INFO L899 garLoopResultBuilder]: For program point L427(line 427) no Hoare annotation was computed. [2022-11-25 23:52:55,866 INFO L899 garLoopResultBuilder]: For program point L328(lines 328 333) no Hoare annotation was computed. [2022-11-25 23:52:55,866 INFO L899 garLoopResultBuilder]: For program point L444(lines 444 472) no Hoare annotation was computed. [2022-11-25 23:52:55,866 INFO L902 garLoopResultBuilder]: At program point L378(line 378) the Hoare annotation is: true [2022-11-25 23:52:55,866 INFO L899 garLoopResultBuilder]: For program point L378-1(lines 376 399) no Hoare annotation was computed. [2022-11-25 23:52:55,866 INFO L899 garLoopResultBuilder]: For program point L312(lines 312 314) no Hoare annotation was computed. [2022-11-25 23:52:55,867 INFO L899 garLoopResultBuilder]: For program point L279(line 279) no Hoare annotation was computed. [2022-11-25 23:52:55,867 INFO L899 garLoopResultBuilder]: For program point L213(lines 213 215) no Hoare annotation was computed. [2022-11-25 23:52:55,867 INFO L902 garLoopResultBuilder]: At program point L329(line 329) the Hoare annotation is: true [2022-11-25 23:52:55,867 INFO L902 garLoopResultBuilder]: At program point L296(lines 283 299) the Hoare annotation is: true [2022-11-25 23:52:55,867 INFO L899 garLoopResultBuilder]: For program point L329-1(line 329) no Hoare annotation was computed. [2022-11-25 23:52:55,868 INFO L902 garLoopResultBuilder]: At program point L263(line 263) the Hoare annotation is: true [2022-11-25 23:52:55,868 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 281) no Hoare annotation was computed. [2022-11-25 23:52:55,868 INFO L899 garLoopResultBuilder]: For program point L280(lines 280 282) no Hoare annotation was computed. [2022-11-25 23:52:55,868 INFO L899 garLoopResultBuilder]: For program point L280-2(lines 269 300) no Hoare annotation was computed. [2022-11-25 23:52:55,868 INFO L899 garLoopResultBuilder]: For program point L462(lines 462 472) no Hoare annotation was computed. [2022-11-25 23:52:55,869 INFO L902 garLoopResultBuilder]: At program point L429(lines 401 431) the Hoare annotation is: true [2022-11-25 23:52:55,869 INFO L899 garLoopResultBuilder]: For program point L396(line 396) no Hoare annotation was computed. [2022-11-25 23:52:55,869 INFO L899 garLoopResultBuilder]: For program point L330(lines 330 332) no Hoare annotation was computed. [2022-11-25 23:52:55,869 INFO L899 garLoopResultBuilder]: For program point L264(line 264) no Hoare annotation was computed. [2022-11-25 23:52:55,869 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 281) no Hoare annotation was computed. [2022-11-25 23:52:55,870 INFO L902 garLoopResultBuilder]: At program point L347(line 347) the Hoare annotation is: true [2022-11-25 23:52:55,870 INFO L899 garLoopResultBuilder]: For program point L347-1(lines 345 368) no Hoare annotation was computed. [2022-11-25 23:52:55,870 INFO L899 garLoopResultBuilder]: For program point L281(line 281) no Hoare annotation was computed. [2022-11-25 23:52:55,870 INFO L899 garLoopResultBuilder]: For program point L281-1(line 281) no Hoare annotation was computed. [2022-11-25 23:52:55,870 INFO L899 garLoopResultBuilder]: For program point L265(lines 265 302) no Hoare annotation was computed. [2022-11-25 23:52:55,870 INFO L902 garLoopResultBuilder]: At program point L265-1(lines 265 302) the Hoare annotation is: true [2022-11-25 23:52:55,871 INFO L899 garLoopResultBuilder]: For program point L447(lines 447 472) no Hoare annotation was computed. [2022-11-25 23:52:55,871 INFO L902 garLoopResultBuilder]: At program point L216(line 216) the Hoare annotation is: true [2022-11-25 23:52:55,871 INFO L899 garLoopResultBuilder]: For program point L216-1(line 216) no Hoare annotation was computed. [2022-11-25 23:52:55,871 INFO L902 garLoopResultBuilder]: At program point L398(lines 370 400) the Hoare annotation is: true [2022-11-25 23:52:55,871 INFO L899 garLoopResultBuilder]: For program point L365(line 365) no Hoare annotation was computed. [2022-11-25 23:52:55,872 INFO L902 garLoopResultBuilder]: At program point L266(line 266) the Hoare annotation is: true [2022-11-25 23:52:55,872 INFO L899 garLoopResultBuilder]: For program point L266-1(line 266) no Hoare annotation was computed. [2022-11-25 23:52:55,872 INFO L899 garLoopResultBuilder]: For program point L93(lines 93 98) no Hoare annotation was computed. [2022-11-25 23:52:55,872 INFO L899 garLoopResultBuilder]: For program point L93-2(lines 75 98) no Hoare annotation was computed. [2022-11-25 23:52:55,872 INFO L899 garLoopResultBuilder]: For program point L89(lines 89 91) no Hoare annotation was computed. [2022-11-25 23:52:55,872 INFO L899 garLoopResultBuilder]: For program point L81(lines 81 98) no Hoare annotation was computed. [2022-11-25 23:52:55,873 INFO L899 garLoopResultBuilder]: For program point L77(lines 77 79) no Hoare annotation was computed. [2022-11-25 23:52:55,873 INFO L899 garLoopResultBuilder]: For program point add_history_typeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 99) no Hoare annotation was computed. [2022-11-25 23:52:55,873 INFO L895 garLoopResultBuilder]: At program point L94(line 94) the Hoare annotation is: (and (not (= |add_history_type_#in~history_id| 0)) (or (= add_history_type_~var~0 0) (and (<= add_history_type_~var~0 2) (<= 1 add_history_type_~var~0)))) [2022-11-25 23:52:55,873 INFO L899 garLoopResultBuilder]: For program point L94-1(line 94) no Hoare annotation was computed. [2022-11-25 23:52:55,874 INFO L895 garLoopResultBuilder]: At program point L82(line 82) the Hoare annotation is: (and (not (= |add_history_type_#in~history_id| 0)) (or (= add_history_type_~var~0 0) (and (<= add_history_type_~var~0 2) (<= 1 add_history_type_~var~0)))) [2022-11-25 23:52:55,874 INFO L899 garLoopResultBuilder]: For program point L82-1(line 82) no Hoare annotation was computed. [2022-11-25 23:52:55,874 INFO L895 garLoopResultBuilder]: At program point L74-2(lines 74 100) the Hoare annotation is: (and (or (not (= |add_history_type_#in~history_id| 0)) (= add_history_type_~history_id 0)) (or (= add_history_type_~var~0 0) (<= 1 add_history_type_~var~0))) [2022-11-25 23:52:55,874 INFO L899 garLoopResultBuilder]: For program point L99(line 99) no Hoare annotation was computed. [2022-11-25 23:52:55,874 INFO L899 garLoopResultBuilder]: For program point L99-1(line 99) no Hoare annotation was computed. [2022-11-25 23:52:55,875 INFO L899 garLoopResultBuilder]: For program point L95(lines 95 97) no Hoare annotation was computed. [2022-11-25 23:52:55,875 INFO L899 garLoopResultBuilder]: For program point L87(lines 87 98) no Hoare annotation was computed. [2022-11-25 23:52:55,875 INFO L899 garLoopResultBuilder]: For program point L83(lines 83 85) no Hoare annotation was computed. [2022-11-25 23:52:55,875 INFO L899 garLoopResultBuilder]: For program point add_history_typeEXIT(lines 60 103) no Hoare annotation was computed. [2022-11-25 23:52:55,875 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 98) no Hoare annotation was computed. [2022-11-25 23:52:55,876 INFO L895 garLoopResultBuilder]: At program point L88(line 88) the Hoare annotation is: (and (not (= |add_history_type_#in~history_id| 0)) (or (= add_history_type_~var~0 0) (and (<= add_history_type_~var~0 2) (<= 1 add_history_type_~var~0)))) [2022-11-25 23:52:55,876 INFO L899 garLoopResultBuilder]: For program point L88-1(line 88) no Hoare annotation was computed. [2022-11-25 23:52:55,876 INFO L902 garLoopResultBuilder]: At program point add_history_typeENTRY(lines 60 103) the Hoare annotation is: true [2022-11-25 23:52:55,876 INFO L895 garLoopResultBuilder]: At program point L76(line 76) the Hoare annotation is: (let ((.cse0 (= add_history_type_~history_id 0))) (or (and (= add_history_type_~var~0 0) .cse0) (and (<= add_history_type_~var~0 2) .cse0 (<= 1 add_history_type_~var~0)))) [2022-11-25 23:52:55,876 INFO L899 garLoopResultBuilder]: For program point L76-1(line 76) no Hoare annotation was computed. [2022-11-25 23:52:55,877 INFO L899 garLoopResultBuilder]: For program point add_history_typeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 99) no Hoare annotation was computed. [2022-11-25 23:52:55,877 INFO L899 garLoopResultBuilder]: For program point add_history_typeFINAL(lines 60 103) no Hoare annotation was computed. [2022-11-25 23:52:55,877 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 36 38) the Hoare annotation is: true [2022-11-25 23:52:55,877 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 36 38) no Hoare annotation was computed. [2022-11-25 23:52:55,877 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 200) no Hoare annotation was computed. [2022-11-25 23:52:55,878 INFO L899 garLoopResultBuilder]: For program point write_history_boolEXIT(lines 179 203) no Hoare annotation was computed. [2022-11-25 23:52:55,878 INFO L899 garLoopResultBuilder]: For program point L184(lines 184 200) no Hoare annotation was computed. [2022-11-25 23:52:55,878 INFO L902 garLoopResultBuilder]: At program point write_history_boolENTRY(lines 179 203) the Hoare annotation is: true [2022-11-25 23:52:55,878 INFO L895 garLoopResultBuilder]: At program point L199(line 199) the Hoare annotation is: (<= |write_history_bool_#in~history_id| write_history_bool_~history_id) [2022-11-25 23:52:55,878 INFO L899 garLoopResultBuilder]: For program point L199-1(lines 179 203) no Hoare annotation was computed. [2022-11-25 23:52:55,879 INFO L899 garLoopResultBuilder]: For program point L194(lines 194 200) no Hoare annotation was computed. [2022-11-25 23:52:55,883 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:52:55,889 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:52:55,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:52:55 BoogieIcfgContainer [2022-11-25 23:52:55,909 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:52:55,909 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:52:55,910 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:52:55,910 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:52:55,910 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:52:39" (3/4) ... [2022-11-25 23:52:55,920 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 23:52:55,928 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_history_int8 [2022-11-25 23:52:55,928 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_history_bool [2022-11-25 23:52:55,928 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assert [2022-11-25 23:52:55,929 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure add_history_type [2022-11-25 23:52:55,929 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-11-25 23:52:55,929 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure write_history_bool [2022-11-25 23:52:55,953 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2022-11-25 23:52:55,955 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-25 23:52:55,956 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-25 23:52:55,957 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 23:52:55,993 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(history_id) == 0) || history_id == 0) && (var == 0 || 1 <= var) [2022-11-25 23:52:56,094 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 23:52:56,095 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:52:56,096 INFO L158 Benchmark]: Toolchain (without parser) took 18674.44ms. Allocated memory was 142.6MB in the beginning and 234.9MB in the end (delta: 92.3MB). Free memory was 110.3MB in the beginning and 105.1MB in the end (delta: 5.1MB). Peak memory consumption was 98.9MB. Max. memory is 16.1GB. [2022-11-25 23:52:56,096 INFO L158 Benchmark]: CDTParser took 0.84ms. Allocated memory is still 142.6MB. Free memory was 85.1MB in the beginning and 85.0MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:52:56,096 INFO L158 Benchmark]: CACSL2BoogieTranslator took 430.94ms. Allocated memory is still 142.6MB. Free memory was 109.8MB in the beginning and 94.0MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 23:52:56,102 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.10ms. Allocated memory is still 142.6MB. Free memory was 94.0MB in the beginning and 91.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 23:52:56,103 INFO L158 Benchmark]: Boogie Preprocessor took 42.64ms. Allocated memory is still 142.6MB. Free memory was 91.0MB in the beginning and 88.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:52:56,104 INFO L158 Benchmark]: RCFGBuilder took 1259.65ms. Allocated memory was 142.6MB in the beginning and 195.0MB in the end (delta: 52.4MB). Free memory was 88.5MB in the beginning and 156.2MB in the end (delta: -67.7MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. [2022-11-25 23:52:56,104 INFO L158 Benchmark]: TraceAbstraction took 16684.76ms. Allocated memory was 195.0MB in the beginning and 234.9MB in the end (delta: 39.8MB). Free memory was 155.2MB in the beginning and 114.6MB in the end (delta: 40.6MB). Peak memory consumption was 80.4MB. Max. memory is 16.1GB. [2022-11-25 23:52:56,107 INFO L158 Benchmark]: Witness Printer took 185.31ms. Allocated memory is still 234.9MB. Free memory was 114.6MB in the beginning and 105.1MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 23:52:56,112 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.84ms. Allocated memory is still 142.6MB. Free memory was 85.1MB in the beginning and 85.0MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 430.94ms. Allocated memory is still 142.6MB. Free memory was 109.8MB in the beginning and 94.0MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.10ms. Allocated memory is still 142.6MB. Free memory was 94.0MB in the beginning and 91.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.64ms. Allocated memory is still 142.6MB. Free memory was 91.0MB in the beginning and 88.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1259.65ms. Allocated memory was 142.6MB in the beginning and 195.0MB in the end (delta: 52.4MB). Free memory was 88.5MB in the beginning and 156.2MB in the end (delta: -67.7MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. * TraceAbstraction took 16684.76ms. Allocated memory was 195.0MB in the beginning and 234.9MB in the end (delta: 39.8MB). Free memory was 155.2MB in the beginning and 114.6MB in the end (delta: 40.6MB). Peak memory consumption was 80.4MB. Max. memory is 16.1GB. * Witness Printer took 185.31ms. Allocated memory is still 234.9MB. Free memory was 114.6MB in the beginning and 105.1MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 273]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 273]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 277]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 277]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 281]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 281]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: 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 7 procedures, 159 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 16.5s, OverallIterations: 21, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1978 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1660 mSDsluCounter, 19853 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14033 mSDsCounter, 173 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2308 IncrementalHoareTripleChecker+Invalid, 2481 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 173 mSolverCounterUnsat, 5820 mSDtfsCounter, 2308 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1729 GetRequests, 1581 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=220occurred in iteration=17, InterpolantAutomatonStates: 119, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 21 MinimizatonAttempts, 911 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 52 LocationsWithAnnotation, 741 PreInvPairs, 873 NumberOfFragments, 161 HoareAnnotationTreeSize, 741 FomulaSimplifications, 223 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 52 FomulaSimplificationsInter, 154 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 3263 NumberOfCodeBlocks, 3263 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 3224 ConstructedInterpolants, 0 QuantifiedInterpolants, 3719 SizeOfPredicates, 26 NumberOfNonLiveVariables, 8271 ConjunctsInSsa, 71 ConjunctsInUnsatCore, 39 InterpolantComputations, 21 PerfectInterpolantSequences, 1562/1586 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 8 specifications checked. All of them hold - InvariantResult [Line: 231]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 204]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 283]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 339]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 401]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 370]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 74]: Loop Invariant Derived loop invariant: (!(\old(history_id) == 0) || history_id == 0) && (var == 0 || 1 <= var) - InvariantResult [Line: 511]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-25 23:52:56,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0dc104-6fd4-41ff-ab3a-0f8a02fb001f/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE