./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/xcsp/AllInterval-007.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/xcsp/AllInterval-007.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh --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 79ad480fc17f59cc4e46ec2dbc023b5da3460c72b3c8ca1cc6dbc35a93f8cf64 --- 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-2329fc7 [2022-12-14 11:33:40,934 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:33:40,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:33:40,948 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:33:40,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:33:40,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:33:40,950 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:33:40,951 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:33:40,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:33:40,953 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:33:40,953 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:33:40,954 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:33:40,955 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:33:40,955 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:33:40,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:33:40,957 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:33:40,957 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:33:40,958 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:33:40,959 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:33:40,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:33:40,961 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:33:40,962 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:33:40,963 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:33:40,964 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:33:40,968 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:33:40,968 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:33:40,968 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:33:40,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:33:40,970 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:33:40,971 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:33:40,971 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:33:40,972 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:33:40,972 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:33:40,973 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:33:40,974 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:33:40,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:33:40,975 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:33:40,975 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:33:40,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:33:40,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:33:40,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:33:40,978 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 11:33:40,998 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:33:40,998 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:33:40,998 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:33:40,999 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:33:40,999 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:33:40,999 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:33:41,000 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:33:41,000 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:33:41,000 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:33:41,000 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:33:41,000 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:33:41,000 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:33:41,001 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:33:41,001 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:33:41,001 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:33:41,001 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:33:41,001 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:33:41,002 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:33:41,002 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:33:41,002 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:33:41,003 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 11:33:41,003 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:33:41,003 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:33:41,003 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:33:41,003 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:33:41,003 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:33:41,003 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:33:41,004 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 11:33:41,004 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:33:41,004 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:33:41,004 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:33:41,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:33:41,005 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:33:41,005 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:33:41,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:33:41,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:33:41,005 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:33:41,006 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:33:41,006 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:33:41,006 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:33:41,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:33:41,006 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:33:41,006 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:33:41,006 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_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79ad480fc17f59cc4e46ec2dbc023b5da3460c72b3c8ca1cc6dbc35a93f8cf64 [2022-12-14 11:33:41,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:33:41,206 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:33:41,209 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:33:41,210 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:33:41,210 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:33:41,211 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/xcsp/AllInterval-007.c [2022-12-14 11:33:43,750 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:33:43,928 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:33:43,929 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/sv-benchmarks/c/xcsp/AllInterval-007.c [2022-12-14 11:33:43,933 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/data/2ffbaf731/67ada98c019241419a36a7ec944dc249/FLAGe9741ac93 [2022-12-14 11:33:44,313 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/data/2ffbaf731/67ada98c019241419a36a7ec944dc249 [2022-12-14 11:33:44,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:33:44,318 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:33:44,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:33:44,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:33:44,326 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:33:44,327 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:33:44" (1/1) ... [2022-12-14 11:33:44,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a40b3b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:33:44, skipping insertion in model container [2022-12-14 11:33:44,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:33:44" (1/1) ... [2022-12-14 11:33:44,332 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:33:44,346 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:33:44,460 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_ff8962fe-a895-4318-989f-8f59be634528/sv-benchmarks/c/xcsp/AllInterval-007.c[3690,3703] [2022-12-14 11:33:44,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:33:44,469 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:33:44,489 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_ff8962fe-a895-4318-989f-8f59be634528/sv-benchmarks/c/xcsp/AllInterval-007.c[3690,3703] [2022-12-14 11:33:44,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:33:44,499 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:33:44,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:33:44 WrapperNode [2022-12-14 11:33:44,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:33:44,501 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:33:44,501 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:33:44,501 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:33:44,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:33:44" (1/1) ... [2022-12-14 11:33:44,512 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:33:44" (1/1) ... [2022-12-14 11:33:44,529 INFO L138 Inliner]: procedures = 13, calls = 75, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 198 [2022-12-14 11:33:44,530 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:33:44,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:33:44,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:33:44,530 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:33:44,537 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:33:44" (1/1) ... [2022-12-14 11:33:44,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:33:44" (1/1) ... [2022-12-14 11:33:44,540 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:33:44" (1/1) ... [2022-12-14 11:33:44,540 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:33:44" (1/1) ... [2022-12-14 11:33:44,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:33:44" (1/1) ... [2022-12-14 11:33:44,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:33:44" (1/1) ... [2022-12-14 11:33:44,549 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:33:44" (1/1) ... [2022-12-14 11:33:44,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:33:44" (1/1) ... [2022-12-14 11:33:44,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:33:44,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:33:44,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:33:44,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:33:44,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:33:44" (1/1) ... [2022-12-14 11:33:44,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:33:44,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:33:44,583 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:33:44,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:33:44,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:33:44,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:33:44,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:33:44,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:33:44,609 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2022-12-14 11:33:44,609 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2022-12-14 11:33:44,667 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:33:44,669 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:33:44,903 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:33:44,921 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:33:44,921 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 11:33:44,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:33:44 BoogieIcfgContainer [2022-12-14 11:33:44,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:33:44,926 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:33:44,926 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:33:44,929 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:33:44,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:33:44" (1/3) ... [2022-12-14 11:33:44,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@671696e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:33:44, skipping insertion in model container [2022-12-14 11:33:44,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:33:44" (2/3) ... [2022-12-14 11:33:44,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@671696e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:33:44, skipping insertion in model container [2022-12-14 11:33:44,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:33:44" (3/3) ... [2022-12-14 11:33:44,932 INFO L112 eAbstractionObserver]: Analyzing ICFG AllInterval-007.c [2022-12-14 11:33:44,949 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:33:44,949 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2022-12-14 11:33:44,991 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:33:44,996 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;@3b625445, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:33:44,996 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-12-14 11:33:44,999 INFO L276 IsEmpty]: Start isEmpty. Operand has 147 states, 53 states have (on average 1.5660377358490567) internal successors, (83), 77 states have internal predecessors, (83), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2022-12-14 11:33:45,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-12-14 11:33:45,011 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:33:45,012 INFO L195 NwaCegarLoop]: trace histogram [62, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:33:45,013 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-12-14 11:33:45,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:33:45,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1112417543, now seen corresponding path program 1 times [2022-12-14 11:33:45,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:33:45,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070663047] [2022-12-14 11:33:45,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:33:45,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:33:45,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:33:45,714 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 3721 trivial. 0 not checked. [2022-12-14 11:33:45,715 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:33:45,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070663047] [2022-12-14 11:33:45,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070663047] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:33:45,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77832781] [2022-12-14 11:33:45,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:33:45,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:33:45,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:33:45,717 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:33:45,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 11:33:45,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:33:45,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 11:33:45,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:33:46,247 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 3721 trivial. 0 not checked. [2022-12-14 11:33:46,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:33:46,527 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 3721 trivial. 0 not checked. [2022-12-14 11:33:46,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77832781] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:33:46,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [993061303] [2022-12-14 11:33:46,549 INFO L159 IcfgInterpreter]: Started Sifa with 81 locations of interest [2022-12-14 11:33:46,549 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:33:46,553 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:33:46,557 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:33:46,558 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:33:58,852 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 56 for LOIs [2022-12-14 11:33:58,863 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:34:35,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [993061303] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:34:35,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:34:35,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [78] imperfect sequences [4, 4, 4] total 85 [2022-12-14 11:34:35,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905267898] [2022-12-14 11:34:35,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:34:35,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2022-12-14 11:34:35,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:34:35,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2022-12-14 11:34:35,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3472, Invalid=3838, Unknown=0, NotChecked=0, Total=7310 [2022-12-14 11:34:35,585 INFO L87 Difference]: Start difference. First operand has 147 states, 53 states have (on average 1.5660377358490567) internal successors, (83), 77 states have internal predecessors, (83), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) Second operand has 80 states, 16 states have (on average 1.0625) internal successors, (17), 17 states have internal predecessors, (17), 62 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-12-14 11:34:37,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:34:37,166 INFO L93 Difference]: Finished difference Result 147 states and 219 transitions. [2022-12-14 11:34:37,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-12-14 11:34:37,169 INFO L78 Accepts]: Start accepts. Automaton has has 80 states, 16 states have (on average 1.0625) internal successors, (17), 17 states have internal predecessors, (17), 62 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) Word has length 202 [2022-12-14 11:34:37,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:34:37,175 INFO L225 Difference]: With dead ends: 147 [2022-12-14 11:34:37,175 INFO L226 Difference]: Without dead ends: 131 [2022-12-14 11:34:37,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 608 GetRequests, 523 SyntacticMatches, 1 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 36.7s TimeCoverageRelationStatistics Valid=3472, Invalid=3838, Unknown=0, NotChecked=0, Total=7310 [2022-12-14 11:34:37,180 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 378 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:34:37,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 180 Invalid, 916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 11:34:37,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-12-14 11:34:37,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2022-12-14 11:34:37,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 51 states have (on average 1.3137254901960784) internal successors, (67), 62 states have internal predecessors, (67), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2022-12-14 11:34:37,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 201 transitions. [2022-12-14 11:34:37,263 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 201 transitions. Word has length 202 [2022-12-14 11:34:37,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:34:37,265 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 201 transitions. [2022-12-14 11:34:37,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 16 states have (on average 1.0625) internal successors, (17), 17 states have internal predecessors, (17), 62 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-12-14 11:34:37,266 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 201 transitions. [2022-12-14 11:34:37,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-12-14 11:34:37,270 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:34:37,271 INFO L195 NwaCegarLoop]: trace histogram [62, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:34:37,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 11:34:37,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:34:37,473 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-12-14 11:34:37,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:34:37,475 INFO L85 PathProgramCache]: Analyzing trace with hash -63256199, now seen corresponding path program 1 times [2022-12-14 11:34:37,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:34:37,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603483142] [2022-12-14 11:34:37,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:34:37,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:34:37,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:34:37,600 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3782 trivial. 0 not checked. [2022-12-14 11:34:37,600 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:34:37,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603483142] [2022-12-14 11:34:37,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603483142] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:34:37,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:34:37,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:34:37,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343414680] [2022-12-14 11:34:37,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:34:37,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:34:37,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:34:37,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:34:37,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:34:37,604 INFO L87 Difference]: Start difference. First operand 131 states and 201 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 1 states have call predecessors, (62), 1 states have call successors, (62) [2022-12-14 11:34:37,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:34:37,706 INFO L93 Difference]: Finished difference Result 136 states and 206 transitions. [2022-12-14 11:34:37,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:34:37,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 1 states have call predecessors, (62), 1 states have call successors, (62) Word has length 205 [2022-12-14 11:34:37,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:34:37,708 INFO L225 Difference]: With dead ends: 136 [2022-12-14 11:34:37,709 INFO L226 Difference]: Without dead ends: 130 [2022-12-14 11:34:37,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:34:37,710 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 17 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:34:37,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 329 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:34:37,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-12-14 11:34:37,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 125. [2022-12-14 11:34:37,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 51 states have (on average 1.196078431372549) internal successors, (61), 56 states have internal predecessors, (61), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2022-12-14 11:34:37,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 195 transitions. [2022-12-14 11:34:37,776 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 195 transitions. Word has length 205 [2022-12-14 11:34:37,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:34:37,776 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 195 transitions. [2022-12-14 11:34:37,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 1 states have call predecessors, (62), 1 states have call successors, (62) [2022-12-14 11:34:37,777 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 195 transitions. [2022-12-14 11:34:37,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-12-14 11:34:37,779 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:34:37,779 INFO L195 NwaCegarLoop]: trace histogram [62, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:34:37,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 11:34:37,779 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-12-14 11:34:37,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:34:37,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1960942048, now seen corresponding path program 1 times [2022-12-14 11:34:37,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:34:37,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884425165] [2022-12-14 11:34:37,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:34:37,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:34:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:34:37,992 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 3721 trivial. 0 not checked. [2022-12-14 11:34:37,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:34:37,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884425165] [2022-12-14 11:34:37,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884425165] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:34:37,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534595833] [2022-12-14 11:34:37,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:34:37,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:34:37,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:34:37,994 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:34:37,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 11:34:38,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:34:38,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 11:34:38,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:34:38,301 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 3721 trivial. 0 not checked. [2022-12-14 11:34:38,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:34:38,452 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 3721 trivial. 0 not checked. [2022-12-14 11:34:38,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [534595833] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:34:38,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [272907196] [2022-12-14 11:34:38,457 INFO L159 IcfgInterpreter]: Started Sifa with 85 locations of interest [2022-12-14 11:34:38,457 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:34:38,458 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:34:38,458 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:34:38,458 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:34:50,407 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 56 for LOIs [2022-12-14 11:34:50,418 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:35:33,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [272907196] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:35:33,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:35:33,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [80] imperfect sequences [5, 5, 5] total 86 [2022-12-14 11:35:33,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704174085] [2022-12-14 11:35:33,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:35:33,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2022-12-14 11:35:33,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:35:33,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2022-12-14 11:35:33,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3485, Invalid=3997, Unknown=0, NotChecked=0, Total=7482 [2022-12-14 11:35:33,284 INFO L87 Difference]: Start difference. First operand 125 states and 195 transitions. Second operand has 82 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 62 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-12-14 11:35:35,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:35:35,099 INFO L93 Difference]: Finished difference Result 126 states and 196 transitions. [2022-12-14 11:35:35,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-12-14 11:35:35,099 INFO L78 Accepts]: Start accepts. Automaton has has 82 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 62 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) Word has length 206 [2022-12-14 11:35:35,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:35:35,101 INFO L225 Difference]: With dead ends: 126 [2022-12-14 11:35:35,101 INFO L226 Difference]: Without dead ends: 125 [2022-12-14 11:35:35,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 621 GetRequests, 531 SyntacticMatches, 5 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 42.8s TimeCoverageRelationStatistics Valid=3485, Invalid=3997, Unknown=0, NotChecked=0, Total=7482 [2022-12-14 11:35:35,102 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 323 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 866 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 11:35:35,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 153 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 866 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 11:35:35,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2022-12-14 11:35:35,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 124. [2022-12-14 11:35:35,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 51 states have (on average 1.1764705882352942) internal successors, (60), 55 states have internal predecessors, (60), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2022-12-14 11:35:35,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 194 transitions. [2022-12-14 11:35:35,151 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 194 transitions. Word has length 206 [2022-12-14 11:35:35,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:35:35,152 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 194 transitions. [2022-12-14 11:35:35,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 62 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-12-14 11:35:35,152 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 194 transitions. [2022-12-14 11:35:35,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-12-14 11:35:35,154 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:35:35,154 INFO L195 NwaCegarLoop]: trace histogram [63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:35:35,159 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 11:35:35,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:35:35,358 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-12-14 11:35:35,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:35:35,359 INFO L85 PathProgramCache]: Analyzing trace with hash 31843775, now seen corresponding path program 1 times [2022-12-14 11:35:35,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:35:35,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98278668] [2022-12-14 11:35:35,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:35:35,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:35:35,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:35:35,683 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 6 proven. 116 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2022-12-14 11:35:35,683 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:35:35,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98278668] [2022-12-14 11:35:35,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98278668] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:35:35,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946512314] [2022-12-14 11:35:35,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:35:35,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:35:35,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:35:35,685 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:35:35,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 11:35:35,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:35:35,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 11:35:35,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:35:35,994 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 2 proven. 60 refuted. 0 times theorem prover too weak. 3844 trivial. 0 not checked. [2022-12-14 11:35:35,994 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:35:36,205 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 2 proven. 60 refuted. 0 times theorem prover too weak. 3844 trivial. 0 not checked. [2022-12-14 11:35:36,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946512314] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:35:36,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1969402241] [2022-12-14 11:35:36,210 INFO L159 IcfgInterpreter]: Started Sifa with 90 locations of interest [2022-12-14 11:35:36,210 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:35:36,211 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:35:36,211 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:35:36,211 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:35:49,123 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-12-14 11:35:49,124 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:36:36,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1969402241] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:36:36,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:36:36,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [84] imperfect sequences [5, 5, 5] total 92 [2022-12-14 11:36:36,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434184099] [2022-12-14 11:36:36,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:36:36,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2022-12-14 11:36:36,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:36:36,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2022-12-14 11:36:36,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3899, Invalid=4657, Unknown=0, NotChecked=0, Total=8556 [2022-12-14 11:36:36,581 INFO L87 Difference]: Start difference. First operand 124 states and 194 transitions. Second operand has 86 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 23 states have internal predecessors, (25), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2022-12-14 11:36:38,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:36:38,746 INFO L93 Difference]: Finished difference Result 134 states and 206 transitions. [2022-12-14 11:36:38,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-12-14 11:36:38,747 INFO L78 Accepts]: Start accepts. Automaton has has 86 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 23 states have internal predecessors, (25), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) Word has length 213 [2022-12-14 11:36:38,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:36:38,748 INFO L225 Difference]: With dead ends: 134 [2022-12-14 11:36:38,748 INFO L226 Difference]: Without dead ends: 133 [2022-12-14 11:36:38,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 643 GetRequests, 547 SyntacticMatches, 5 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 47.4s TimeCoverageRelationStatistics Valid=3899, Invalid=4657, Unknown=0, NotChecked=0, Total=8556 [2022-12-14 11:36:38,750 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 170 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 1183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:36:38,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 153 Invalid, 1183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-14 11:36:38,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-12-14 11:36:38,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 131. [2022-12-14 11:36:38,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 57 states have (on average 1.1754385964912282) internal successors, (67), 61 states have internal predecessors, (67), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2022-12-14 11:36:38,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 203 transitions. [2022-12-14 11:36:38,800 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 203 transitions. Word has length 213 [2022-12-14 11:36:38,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:36:38,800 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 203 transitions. [2022-12-14 11:36:38,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 23 states have internal predecessors, (25), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2022-12-14 11:36:38,801 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 203 transitions. [2022-12-14 11:36:38,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-12-14 11:36:38,802 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:36:38,802 INFO L195 NwaCegarLoop]: trace histogram [63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:36:38,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 11:36:39,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:36:39,004 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-12-14 11:36:39,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:36:39,005 INFO L85 PathProgramCache]: Analyzing trace with hash -948920613, now seen corresponding path program 1 times [2022-12-14 11:36:39,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:36:39,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401623387] [2022-12-14 11:36:39,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:36:39,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:36:39,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:36:39,238 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 2 proven. 60 refuted. 0 times theorem prover too weak. 3844 trivial. 0 not checked. [2022-12-14 11:36:39,238 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:36:39,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401623387] [2022-12-14 11:36:39,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401623387] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:36:39,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594699026] [2022-12-14 11:36:39,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:36:39,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:36:39,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:36:39,239 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:36:39,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 11:36:39,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:36:39,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 11:36:39,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:36:39,526 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 2 proven. 60 refuted. 0 times theorem prover too weak. 3844 trivial. 0 not checked. [2022-12-14 11:36:39,526 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:36:39,688 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 2 proven. 60 refuted. 0 times theorem prover too weak. 3844 trivial. 0 not checked. [2022-12-14 11:36:39,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594699026] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:36:39,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [319666711] [2022-12-14 11:36:39,692 INFO L159 IcfgInterpreter]: Started Sifa with 92 locations of interest [2022-12-14 11:36:39,692 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:36:39,692 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:36:39,693 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:36:39,693 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:36:52,553 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-12-14 11:36:52,554 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:37:43,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [319666711] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:37:43,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:37:43,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [85] imperfect sequences [5, 5, 5] total 91 [2022-12-14 11:37:43,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871763926] [2022-12-14 11:37:43,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:37:43,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2022-12-14 11:37:43,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:37:43,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2022-12-14 11:37:43,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3895, Invalid=4477, Unknown=0, NotChecked=0, Total=8372 [2022-12-14 11:37:43,808 INFO L87 Difference]: Start difference. First operand 131 states and 203 transitions. Second operand has 87 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 24 states have internal predecessors, (27), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2022-12-14 11:37:45,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:37:45,951 INFO L93 Difference]: Finished difference Result 133 states and 205 transitions. [2022-12-14 11:37:45,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2022-12-14 11:37:45,952 INFO L78 Accepts]: Start accepts. Automaton has has 87 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 24 states have internal predecessors, (27), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) Word has length 215 [2022-12-14 11:37:45,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:37:45,953 INFO L225 Difference]: With dead ends: 133 [2022-12-14 11:37:45,953 INFO L226 Difference]: Without dead ends: 132 [2022-12-14 11:37:45,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 648 GetRequests, 551 SyntacticMatches, 7 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 51.2s TimeCoverageRelationStatistics Valid=3895, Invalid=4477, Unknown=0, NotChecked=0, Total=8372 [2022-12-14 11:37:45,955 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 243 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1101 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:37:45,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 144 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1101 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-12-14 11:37:45,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-12-14 11:37:46,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 123. [2022-12-14 11:37:46,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 51 states have (on average 1.1568627450980393) internal successors, (59), 54 states have internal predecessors, (59), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2022-12-14 11:37:46,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 193 transitions. [2022-12-14 11:37:46,005 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 193 transitions. Word has length 215 [2022-12-14 11:37:46,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:37:46,005 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 193 transitions. [2022-12-14 11:37:46,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 24 states have internal predecessors, (27), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2022-12-14 11:37:46,005 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 193 transitions. [2022-12-14 11:37:46,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-12-14 11:37:46,006 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:37:46,007 INFO L195 NwaCegarLoop]: trace histogram [64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:37:46,011 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 11:37:46,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:37:46,208 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-12-14 11:37:46,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:37:46,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1029611100, now seen corresponding path program 1 times [2022-12-14 11:37:46,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:37:46,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263400995] [2022-12-14 11:37:46,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:37:46,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:37:46,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:37:46,439 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 10 proven. 114 refuted. 0 times theorem prover too weak. 3908 trivial. 0 not checked. [2022-12-14 11:37:46,439 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:37:46,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263400995] [2022-12-14 11:37:46,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263400995] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:37:46,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681637413] [2022-12-14 11:37:46,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:37:46,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:37:46,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:37:46,441 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:37:46,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 11:37:46,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:37:46,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 11:37:46,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:37:46,744 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2022-12-14 11:37:46,744 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:37:46,922 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2022-12-14 11:37:46,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681637413] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:37:46,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1258934725] [2022-12-14 11:37:46,926 INFO L159 IcfgInterpreter]: Started Sifa with 95 locations of interest [2022-12-14 11:37:46,926 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:37:46,926 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:37:46,926 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:37:46,926 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:38:00,177 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 56 for LOIs [2022-12-14 11:38:00,187 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:38:54,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1258934725] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:38:54,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:38:54,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [88] imperfect sequences [5, 5, 5] total 96 [2022-12-14 11:38:54,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70516536] [2022-12-14 11:38:54,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:38:54,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 90 states [2022-12-14 11:38:54,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:38:54,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2022-12-14 11:38:54,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4232, Invalid=5080, Unknown=0, NotChecked=0, Total=9312 [2022-12-14 11:38:54,122 INFO L87 Difference]: Start difference. First operand 123 states and 193 transitions. Second operand has 90 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 27 states have internal predecessors, (29), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-12-14 11:38:57,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:38:57,187 INFO L93 Difference]: Finished difference Result 141 states and 215 transitions. [2022-12-14 11:38:57,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-12-14 11:38:57,188 INFO L78 Accepts]: Start accepts. Automaton has has 90 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 27 states have internal predecessors, (29), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) Word has length 220 [2022-12-14 11:38:57,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:38:57,189 INFO L225 Difference]: With dead ends: 141 [2022-12-14 11:38:57,189 INFO L226 Difference]: Without dead ends: 140 [2022-12-14 11:38:57,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 664 GetRequests, 563 SyntacticMatches, 6 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 607 ImplicationChecksByTransitivity, 53.9s TimeCoverageRelationStatistics Valid=4232, Invalid=5080, Unknown=0, NotChecked=0, Total=9312 [2022-12-14 11:38:57,191 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 309 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1437 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 1472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-12-14 11:38:57,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 141 Invalid, 1472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1437 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-12-14 11:38:57,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-12-14 11:38:57,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 135. [2022-12-14 11:38:57,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 61 states have (on average 1.1639344262295082) internal successors, (71), 64 states have internal predecessors, (71), 69 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2022-12-14 11:38:57,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 209 transitions. [2022-12-14 11:38:57,241 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 209 transitions. Word has length 220 [2022-12-14 11:38:57,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:38:57,241 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 209 transitions. [2022-12-14 11:38:57,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 90 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 27 states have internal predecessors, (29), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-12-14 11:38:57,241 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 209 transitions. [2022-12-14 11:38:57,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-12-14 11:38:57,242 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:38:57,242 INFO L195 NwaCegarLoop]: trace histogram [64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:38:57,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 11:38:57,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-14 11:38:57,445 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-12-14 11:38:57,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:38:57,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1101084984, now seen corresponding path program 1 times [2022-12-14 11:38:57,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:38:57,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146413524] [2022-12-14 11:38:57,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:38:57,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:38:57,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:38:57,661 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 2 proven. 61 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2022-12-14 11:38:57,661 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:38:57,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146413524] [2022-12-14 11:38:57,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146413524] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:38:57,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478709385] [2022-12-14 11:38:57,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:38:57,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:38:57,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:38:57,662 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:38:57,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 11:38:57,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:38:57,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 11:38:57,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:38:57,995 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2022-12-14 11:38:57,995 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:38:58,213 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2022-12-14 11:38:58,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [478709385] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:38:58,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [844500345] [2022-12-14 11:38:58,216 INFO L159 IcfgInterpreter]: Started Sifa with 97 locations of interest [2022-12-14 11:38:58,216 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:38:58,216 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:38:58,216 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:38:58,216 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:39:10,513 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 56 for LOIs [2022-12-14 11:39:10,521 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:40:08,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [844500345] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:40:08,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:40:08,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [89] imperfect sequences [7, 5, 5] total 100 [2022-12-14 11:40:08,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25899512] [2022-12-14 11:40:08,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:40:08,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 91 states [2022-12-14 11:40:08,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:40:08,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2022-12-14 11:40:08,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4495, Invalid=5605, Unknown=0, NotChecked=0, Total=10100 [2022-12-14 11:40:08,595 INFO L87 Difference]: Start difference. First operand 135 states and 209 transitions. Second operand has 91 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-12-14 11:40:12,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:40:12,038 INFO L93 Difference]: Finished difference Result 147 states and 223 transitions. [2022-12-14 11:40:12,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-12-14 11:40:12,040 INFO L78 Accepts]: Start accepts. Automaton has has 91 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) Word has length 222 [2022-12-14 11:40:12,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:40:12,041 INFO L225 Difference]: With dead ends: 147 [2022-12-14 11:40:12,041 INFO L226 Difference]: Without dead ends: 146 [2022-12-14 11:40:12,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 671 GetRequests, 565 SyntacticMatches, 7 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 646 ImplicationChecksByTransitivity, 58.1s TimeCoverageRelationStatistics Valid=4495, Invalid=5605, Unknown=0, NotChecked=0, Total=10100 [2022-12-14 11:40:12,043 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 166 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 1563 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 1583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:40:12,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 154 Invalid, 1583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1563 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-12-14 11:40:12,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-12-14 11:40:12,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 137. [2022-12-14 11:40:12,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 63 states have (on average 1.1587301587301588) internal successors, (73), 66 states have internal predecessors, (73), 69 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2022-12-14 11:40:12,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 211 transitions. [2022-12-14 11:40:12,092 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 211 transitions. Word has length 222 [2022-12-14 11:40:12,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:40:12,093 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 211 transitions. [2022-12-14 11:40:12,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 91 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-12-14 11:40:12,093 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 211 transitions. [2022-12-14 11:40:12,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-12-14 11:40:12,094 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:40:12,094 INFO L195 NwaCegarLoop]: trace histogram [64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:40:12,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 11:40:12,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:40:12,296 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-12-14 11:40:12,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:40:12,298 INFO L85 PathProgramCache]: Analyzing trace with hash 513977792, now seen corresponding path program 1 times [2022-12-14 11:40:12,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:40:12,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066936465] [2022-12-14 11:40:12,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:40:12,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:40:12,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:40:12,516 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2022-12-14 11:40:12,516 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:40:12,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066936465] [2022-12-14 11:40:12,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066936465] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:40:12,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626170696] [2022-12-14 11:40:12,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:40:12,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:40:12,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:40:12,518 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:40:12,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 11:40:12,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:40:12,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 11:40:12,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:40:12,827 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2022-12-14 11:40:12,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:40:13,029 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2022-12-14 11:40:13,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626170696] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:40:13,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1192438600] [2022-12-14 11:40:13,032 INFO L159 IcfgInterpreter]: Started Sifa with 97 locations of interest [2022-12-14 11:40:13,032 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:40:13,032 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:40:13,032 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:40:13,032 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:40:26,042 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 56 for LOIs [2022-12-14 11:40:26,051 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:41:21,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1192438600] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:41:21,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:41:21,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [89] imperfect sequences [5, 5, 5] total 96 [2022-12-14 11:41:21,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146593862] [2022-12-14 11:41:21,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:41:21,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 91 states [2022-12-14 11:41:21,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:41:21,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2022-12-14 11:41:21,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4306, Invalid=5006, Unknown=0, NotChecked=0, Total=9312 [2022-12-14 11:41:21,504 INFO L87 Difference]: Start difference. First operand 137 states and 211 transitions. Second operand has 91 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-12-14 11:41:24,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:41:24,615 INFO L93 Difference]: Finished difference Result 147 states and 223 transitions. [2022-12-14 11:41:24,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-12-14 11:41:24,616 INFO L78 Accepts]: Start accepts. Automaton has has 91 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) Word has length 222 [2022-12-14 11:41:24,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:41:24,617 INFO L225 Difference]: With dead ends: 147 [2022-12-14 11:41:24,617 INFO L226 Difference]: Without dead ends: 146 [2022-12-14 11:41:24,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 669 GetRequests, 567 SyntacticMatches, 7 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 521 ImplicationChecksByTransitivity, 55.4s TimeCoverageRelationStatistics Valid=4306, Invalid=5006, Unknown=0, NotChecked=0, Total=9312 [2022-12-14 11:41:24,618 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 159 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 1394 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 1414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:41:24,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 155 Invalid, 1414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1394 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-12-14 11:41:24,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-12-14 11:41:24,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 137. [2022-12-14 11:41:24,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 63 states have (on average 1.1587301587301588) internal successors, (73), 66 states have internal predecessors, (73), 69 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2022-12-14 11:41:24,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 211 transitions. [2022-12-14 11:41:24,672 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 211 transitions. Word has length 222 [2022-12-14 11:41:24,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:41:24,673 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 211 transitions. [2022-12-14 11:41:24,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 91 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-12-14 11:41:24,673 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 211 transitions. [2022-12-14 11:41:24,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-12-14 11:41:24,674 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:41:24,674 INFO L195 NwaCegarLoop]: trace histogram [64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:41:24,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 11:41:24,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:41:24,876 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-12-14 11:41:24,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:41:24,877 INFO L85 PathProgramCache]: Analyzing trace with hash -501284964, now seen corresponding path program 1 times [2022-12-14 11:41:24,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:41:24,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347230851] [2022-12-14 11:41:24,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:41:24,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:41:24,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:41:25,042 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2022-12-14 11:41:25,042 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:41:25,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347230851] [2022-12-14 11:41:25,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347230851] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:41:25,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484347723] [2022-12-14 11:41:25,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:41:25,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:41:25,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:41:25,044 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:41:25,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 11:41:25,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:41:25,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-14 11:41:25,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:41:25,341 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2022-12-14 11:41:25,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:41:25,540 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2022-12-14 11:41:25,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484347723] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:41:25,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1148023175] [2022-12-14 11:41:25,542 INFO L159 IcfgInterpreter]: Started Sifa with 99 locations of interest [2022-12-14 11:41:25,542 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:41:25,543 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:41:25,543 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:41:25,543 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:41:37,779 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 56 for LOIs [2022-12-14 11:41:37,789 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:42:39,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1148023175] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:42:39,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:42:39,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [90] imperfect sequences [5, 9, 9] total 107 [2022-12-14 11:42:39,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449864326] [2022-12-14 11:42:39,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:42:39,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2022-12-14 11:42:39,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:42:39,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2022-12-14 11:42:39,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4872, Invalid=6684, Unknown=0, NotChecked=0, Total=11556 [2022-12-14 11:42:39,460 INFO L87 Difference]: Start difference. First operand 137 states and 211 transitions. Second operand has 92 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 29 states have internal predecessors, (33), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-12-14 11:42:42,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:42:42,038 INFO L93 Difference]: Finished difference Result 140 states and 214 transitions. [2022-12-14 11:42:42,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-12-14 11:42:42,039 INFO L78 Accepts]: Start accepts. Automaton has has 92 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 29 states have internal predecessors, (33), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) Word has length 224 [2022-12-14 11:42:42,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:42:42,040 INFO L225 Difference]: With dead ends: 140 [2022-12-14 11:42:42,040 INFO L226 Difference]: Without dead ends: 139 [2022-12-14 11:42:42,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 675 GetRequests, 561 SyntacticMatches, 8 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1321 ImplicationChecksByTransitivity, 61.7s TimeCoverageRelationStatistics Valid=4872, Invalid=6684, Unknown=0, NotChecked=0, Total=11556 [2022-12-14 11:42:42,042 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 212 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1429 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 1454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:42:42,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 135 Invalid, 1454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1429 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-14 11:42:42,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-12-14 11:42:42,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 122. [2022-12-14 11:42:42,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 51 states have (on average 1.1372549019607843) internal successors, (58), 53 states have internal predecessors, (58), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2022-12-14 11:42:42,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 192 transitions. [2022-12-14 11:42:42,088 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 192 transitions. Word has length 224 [2022-12-14 11:42:42,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:42:42,089 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 192 transitions. [2022-12-14 11:42:42,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 92 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 29 states have internal predecessors, (33), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-12-14 11:42:42,089 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 192 transitions. [2022-12-14 11:42:42,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-12-14 11:42:42,090 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:42:42,090 INFO L195 NwaCegarLoop]: trace histogram [65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:42:42,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-12-14 11:42:42,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:42:42,292 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-12-14 11:42:42,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:42:42,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1908300741, now seen corresponding path program 1 times [2022-12-14 11:42:42,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:42:42,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035462032] [2022-12-14 11:42:42,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:42:42,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:42:42,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:42:42,456 INFO L134 CoverageAnalysis]: Checked inductivity of 4160 backedges. 6 proven. 58 refuted. 0 times theorem prover too weak. 4096 trivial. 0 not checked. [2022-12-14 11:42:42,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:42:42,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035462032] [2022-12-14 11:42:42,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035462032] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:42:42,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189403610] [2022-12-14 11:42:42,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:42:42,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:42:42,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:42:42,457 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:42:42,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-14 11:42:42,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:42:42,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 11:42:42,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:42:42,756 INFO L134 CoverageAnalysis]: Checked inductivity of 4160 backedges. 6 proven. 58 refuted. 0 times theorem prover too weak. 4096 trivial. 0 not checked. [2022-12-14 11:42:42,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:42:42,947 INFO L134 CoverageAnalysis]: Checked inductivity of 4160 backedges. 6 proven. 58 refuted. 0 times theorem prover too weak. 4096 trivial. 0 not checked. [2022-12-14 11:42:42,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189403610] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:42:42,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1907332586] [2022-12-14 11:42:42,950 INFO L159 IcfgInterpreter]: Started Sifa with 100 locations of interest [2022-12-14 11:42:42,950 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:42:42,950 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:42:42,950 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:42:42,950 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:42:56,486 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-12-14 11:42:56,487 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:43:58,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1907332586] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:43:58,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:43:58,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [91] imperfect sequences [5, 5, 5] total 97 [2022-12-14 11:43:58,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037189903] [2022-12-14 11:43:58,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:43:58,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 93 states [2022-12-14 11:43:58,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:43:58,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2022-12-14 11:43:58,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4385, Invalid=5121, Unknown=0, NotChecked=0, Total=9506 [2022-12-14 11:43:58,866 INFO L87 Difference]: Start difference. First operand 122 states and 192 transitions. Second operand has 93 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 30 states have internal predecessors, (33), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2022-12-14 11:44:02,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:44:02,623 INFO L93 Difference]: Finished difference Result 165 states and 242 transitions. [2022-12-14 11:44:02,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-12-14 11:44:02,624 INFO L78 Accepts]: Start accepts. Automaton has has 93 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 30 states have internal predecessors, (33), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) Word has length 227 [2022-12-14 11:44:02,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:44:02,626 INFO L225 Difference]: With dead ends: 165 [2022-12-14 11:44:02,626 INFO L226 Difference]: Without dead ends: 146 [2022-12-14 11:44:02,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 684 GetRequests, 579 SyntacticMatches, 9 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 62.3s TimeCoverageRelationStatistics Valid=4385, Invalid=5121, Unknown=0, NotChecked=0, Total=9506 [2022-12-14 11:44:02,627 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 145 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1537 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 1553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-12-14 11:44:02,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 121 Invalid, 1553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1537 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-12-14 11:44:02,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-12-14 11:44:02,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 139. [2022-12-14 11:44:02,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 65 states have (on average 1.1384615384615384) internal successors, (74), 67 states have internal predecessors, (74), 70 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2022-12-14 11:44:02,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 214 transitions. [2022-12-14 11:44:02,682 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 214 transitions. Word has length 227 [2022-12-14 11:44:02,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:44:02,682 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 214 transitions. [2022-12-14 11:44:02,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 93 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 30 states have internal predecessors, (33), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2022-12-14 11:44:02,683 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 214 transitions. [2022-12-14 11:44:02,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-12-14 11:44:02,683 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:44:02,683 INFO L195 NwaCegarLoop]: trace histogram [65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:44:02,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-14 11:44:02,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-14 11:44:02,885 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-12-14 11:44:02,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:44:02,887 INFO L85 PathProgramCache]: Analyzing trace with hash 534632535, now seen corresponding path program 1 times [2022-12-14 11:44:02,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:44:02,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841758589] [2022-12-14 11:44:02,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:44:02,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:44:02,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:44:03,053 INFO L134 CoverageAnalysis]: Checked inductivity of 4160 backedges. 6 proven. 58 refuted. 0 times theorem prover too weak. 4096 trivial. 0 not checked. [2022-12-14 11:44:03,053 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:44:03,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841758589] [2022-12-14 11:44:03,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841758589] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:44:03,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301113349] [2022-12-14 11:44:03,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:44:03,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:44:03,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:44:03,055 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:44:03,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-14 11:44:03,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:44:03,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 11:44:03,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:44:03,417 INFO L134 CoverageAnalysis]: Checked inductivity of 4160 backedges. 4 proven. 60 refuted. 0 times theorem prover too weak. 4096 trivial. 0 not checked. [2022-12-14 11:44:03,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:44:03,657 INFO L134 CoverageAnalysis]: Checked inductivity of 4160 backedges. 4 proven. 60 refuted. 0 times theorem prover too weak. 4096 trivial. 0 not checked. [2022-12-14 11:44:03,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301113349] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:44:03,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [389289270] [2022-12-14 11:44:03,659 INFO L159 IcfgInterpreter]: Started Sifa with 102 locations of interest [2022-12-14 11:44:03,659 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:44:03,660 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:44:03,660 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:44:03,660 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:44:16,834 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-12-14 11:44:16,835 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:45:22,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [389289270] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:45:22,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:45:22,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [93] imperfect sequences [5, 7, 7] total 106 [2022-12-14 11:45:22,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351542063] [2022-12-14 11:45:22,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:45:22,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-12-14 11:45:22,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:45:22,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-12-14 11:45:22,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4931, Invalid=6411, Unknown=0, NotChecked=0, Total=11342 [2022-12-14 11:45:22,375 INFO L87 Difference]: Start difference. First operand 139 states and 214 transitions. Second operand has 95 states, 28 states have (on average 1.25) internal successors, (35), 32 states have internal predecessors, (35), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2022-12-14 11:45:25,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:45:25,758 INFO L93 Difference]: Finished difference Result 154 states and 231 transitions. [2022-12-14 11:45:25,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-12-14 11:45:25,759 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 28 states have (on average 1.25) internal successors, (35), 32 states have internal predecessors, (35), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) Word has length 229 [2022-12-14 11:45:25,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:45:25,760 INFO L225 Difference]: With dead ends: 154 [2022-12-14 11:45:25,760 INFO L226 Difference]: Without dead ends: 153 [2022-12-14 11:45:25,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 690 GetRequests, 577 SyntacticMatches, 8 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1092 ImplicationChecksByTransitivity, 65.6s TimeCoverageRelationStatistics Valid=4931, Invalid=6411, Unknown=0, NotChecked=0, Total=11342 [2022-12-14 11:45:25,761 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 257 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1627 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 1657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:45:25,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 143 Invalid, 1657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1627 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-12-14 11:45:25,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2022-12-14 11:45:25,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 146. [2022-12-14 11:45:25,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 71 states have (on average 1.1408450704225352) internal successors, (81), 73 states have internal predecessors, (81), 71 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2022-12-14 11:45:25,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 223 transitions. [2022-12-14 11:45:25,814 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 223 transitions. Word has length 229 [2022-12-14 11:45:25,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:45:25,814 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 223 transitions. [2022-12-14 11:45:25,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 28 states have (on average 1.25) internal successors, (35), 32 states have internal predecessors, (35), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2022-12-14 11:45:25,815 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 223 transitions. [2022-12-14 11:45:25,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-12-14 11:45:25,816 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:45:25,816 INFO L195 NwaCegarLoop]: trace histogram [65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:45:25,820 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-14 11:45:26,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-12-14 11:45:26,018 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-12-14 11:45:26,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:45:26,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1447057887, now seen corresponding path program 1 times [2022-12-14 11:45:26,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:45:26,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961960523] [2022-12-14 11:45:26,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:45:26,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:45:26,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:45:26,169 INFO L134 CoverageAnalysis]: Checked inductivity of 4160 backedges. 6 proven. 58 refuted. 0 times theorem prover too weak. 4096 trivial. 0 not checked. [2022-12-14 11:45:26,169 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:45:26,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961960523] [2022-12-14 11:45:26,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961960523] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:45:26,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134229639] [2022-12-14 11:45:26,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:45:26,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:45:26,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:45:26,171 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:45:26,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-14 11:45:26,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:45:26,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 11:45:26,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:45:26,443 INFO L134 CoverageAnalysis]: Checked inductivity of 4160 backedges. 6 proven. 58 refuted. 0 times theorem prover too weak. 4096 trivial. 0 not checked. [2022-12-14 11:45:26,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:45:26,627 INFO L134 CoverageAnalysis]: Checked inductivity of 4160 backedges. 6 proven. 58 refuted. 0 times theorem prover too weak. 4096 trivial. 0 not checked. [2022-12-14 11:45:26,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2134229639] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:45:26,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1693324836] [2022-12-14 11:45:26,629 INFO L159 IcfgInterpreter]: Started Sifa with 102 locations of interest [2022-12-14 11:45:26,629 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:45:26,629 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:45:26,630 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:45:26,630 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:45:40,251 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-12-14 11:45:40,252 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:46:46,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1693324836] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:46:46,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:46:46,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [93] imperfect sequences [5, 5, 5] total 99 [2022-12-14 11:46:46,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137798622] [2022-12-14 11:46:46,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:46:46,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-12-14 11:46:46,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:46:46,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-12-14 11:46:46,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4551, Invalid=5349, Unknown=0, NotChecked=0, Total=9900 [2022-12-14 11:46:46,735 INFO L87 Difference]: Start difference. First operand 146 states and 223 transitions. Second operand has 95 states, 28 states have (on average 1.25) internal successors, (35), 32 states have internal predecessors, (35), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2022-12-14 11:46:50,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:46:50,730 INFO L93 Difference]: Finished difference Result 166 states and 247 transitions. [2022-12-14 11:46:50,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-12-14 11:46:50,731 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 28 states have (on average 1.25) internal successors, (35), 32 states have internal predecessors, (35), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) Word has length 229 [2022-12-14 11:46:50,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:46:50,732 INFO L225 Difference]: With dead ends: 166 [2022-12-14 11:46:50,732 INFO L226 Difference]: Without dead ends: 165 [2022-12-14 11:46:50,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 690 GetRequests, 583 SyntacticMatches, 9 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 66.4s TimeCoverageRelationStatistics Valid=4551, Invalid=5349, Unknown=0, NotChecked=0, Total=9900 [2022-12-14 11:46:50,734 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 136 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1631 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 1646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-12-14 11:46:50,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 143 Invalid, 1646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1631 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-12-14 11:46:50,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-12-14 11:46:50,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 153. [2022-12-14 11:46:50,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 77 states have (on average 1.1428571428571428) internal successors, (88), 79 states have internal predecessors, (88), 72 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2022-12-14 11:46:50,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 232 transitions. [2022-12-14 11:46:50,789 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 232 transitions. Word has length 229 [2022-12-14 11:46:50,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:46:50,789 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 232 transitions. [2022-12-14 11:46:50,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 28 states have (on average 1.25) internal successors, (35), 32 states have internal predecessors, (35), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2022-12-14 11:46:50,790 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 232 transitions. [2022-12-14 11:46:50,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-12-14 11:46:50,790 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:46:50,791 INFO L195 NwaCegarLoop]: trace histogram [65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:46:50,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-12-14 11:46:50,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:46:50,993 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-12-14 11:46:50,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:46:50,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1041513559, now seen corresponding path program 1 times [2022-12-14 11:46:50,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:46:50,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982863220] [2022-12-14 11:46:50,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:46:50,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:46:51,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:46:51,151 INFO L134 CoverageAnalysis]: Checked inductivity of 4160 backedges. 6 proven. 58 refuted. 0 times theorem prover too weak. 4096 trivial. 0 not checked. [2022-12-14 11:46:51,151 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:46:51,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982863220] [2022-12-14 11:46:51,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982863220] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:46:51,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204359877] [2022-12-14 11:46:51,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:46:51,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:46:51,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:46:51,153 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:46:51,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-14 11:46:51,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:46:51,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 11:46:51,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:46:51,406 INFO L134 CoverageAnalysis]: Checked inductivity of 4160 backedges. 6 proven. 58 refuted. 0 times theorem prover too weak. 4096 trivial. 0 not checked. [2022-12-14 11:46:51,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:46:51,576 INFO L134 CoverageAnalysis]: Checked inductivity of 4160 backedges. 6 proven. 58 refuted. 0 times theorem prover too weak. 4096 trivial. 0 not checked. [2022-12-14 11:46:51,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204359877] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:46:51,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1224348566] [2022-12-14 11:46:51,577 INFO L159 IcfgInterpreter]: Started Sifa with 102 locations of interest [2022-12-14 11:46:51,577 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:46:51,578 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:46:51,578 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:46:51,578 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:47:05,790 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-12-14 11:47:05,791 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:48:12,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1224348566] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:48:12,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:48:12,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [93] imperfect sequences [5, 5, 5] total 99 [2022-12-14 11:48:12,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747210717] [2022-12-14 11:48:12,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:48:12,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-12-14 11:48:12,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:48:12,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-12-14 11:48:12,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4551, Invalid=5349, Unknown=0, NotChecked=0, Total=9900 [2022-12-14 11:48:12,511 INFO L87 Difference]: Start difference. First operand 153 states and 232 transitions. Second operand has 95 states, 28 states have (on average 1.25) internal successors, (35), 32 states have internal predecessors, (35), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2022-12-14 11:48:15,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:48:15,758 INFO L93 Difference]: Finished difference Result 171 states and 254 transitions. [2022-12-14 11:48:15,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-12-14 11:48:15,759 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 28 states have (on average 1.25) internal successors, (35), 32 states have internal predecessors, (35), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) Word has length 229 [2022-12-14 11:48:15,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:48:15,760 INFO L225 Difference]: With dead ends: 171 [2022-12-14 11:48:15,760 INFO L226 Difference]: Without dead ends: 170 [2022-12-14 11:48:15,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 690 GetRequests, 583 SyntacticMatches, 9 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 399 ImplicationChecksByTransitivity, 66.7s TimeCoverageRelationStatistics Valid=4551, Invalid=5349, Unknown=0, NotChecked=0, Total=9900 [2022-12-14 11:48:15,761 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 172 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1562 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 1582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:48:15,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 132 Invalid, 1582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1562 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 11:48:15,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-12-14 11:48:15,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 153. [2022-12-14 11:48:15,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 77 states have (on average 1.1428571428571428) internal successors, (88), 79 states have internal predecessors, (88), 72 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2022-12-14 11:48:15,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 232 transitions. [2022-12-14 11:48:15,818 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 232 transitions. Word has length 229 [2022-12-14 11:48:15,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:48:15,818 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 232 transitions. [2022-12-14 11:48:15,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 28 states have (on average 1.25) internal successors, (35), 32 states have internal predecessors, (35), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2022-12-14 11:48:15,818 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 232 transitions. [2022-12-14 11:48:15,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-12-14 11:48:15,819 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:48:15,819 INFO L195 NwaCegarLoop]: trace histogram [65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:48:15,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-12-14 11:48:16,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:48:16,020 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-12-14 11:48:16,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:48:16,021 INFO L85 PathProgramCache]: Analyzing trace with hash -486165253, now seen corresponding path program 1 times [2022-12-14 11:48:16,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:48:16,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786144360] [2022-12-14 11:48:16,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:48:16,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:48:16,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:48:16,225 INFO L134 CoverageAnalysis]: Checked inductivity of 4160 backedges. 2 proven. 62 refuted. 0 times theorem prover too weak. 4096 trivial. 0 not checked. [2022-12-14 11:48:16,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:48:16,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786144360] [2022-12-14 11:48:16,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786144360] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:48:16,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459403988] [2022-12-14 11:48:16,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:48:16,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:48:16,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:48:16,227 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:48:16,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8962fe-a895-4318-989f-8f59be634528/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-14 11:48:16,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:48:16,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 11:48:16,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:48:16,510 INFO L134 CoverageAnalysis]: Checked inductivity of 4160 backedges. 4 proven. 60 refuted. 0 times theorem prover too weak. 4096 trivial. 0 not checked. [2022-12-14 11:48:16,510 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:48:16,749 INFO L134 CoverageAnalysis]: Checked inductivity of 4160 backedges. 4 proven. 60 refuted. 0 times theorem prover too weak. 4096 trivial. 0 not checked. [2022-12-14 11:48:16,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459403988] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:48:16,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [189249628] [2022-12-14 11:48:16,751 INFO L159 IcfgInterpreter]: Started Sifa with 104 locations of interest [2022-12-14 11:48:16,751 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:48:16,751 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:48:16,751 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:48:16,751 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:48:31,338 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-12-14 11:48:31,339 INFO L180 IcfgInterpreter]: Interpretation finished