./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5c2bc-2dee-4903-a24a-6638f6ca8c9b/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5c2bc-2dee-4903-a24a-6638f6ca8c9b/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_bab5c2bc-2dee-4903-a24a-6638f6ca8c9b/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5c2bc-2dee-4903-a24a-6638f6ca8c9b/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5c2bc-2dee-4903-a24a-6638f6ca8c9b/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_bab5c2bc-2dee-4903-a24a-6638f6ca8c9b/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 44a86740b4b3d791346dd5ab0675f134d34312247f7633c0f06bf117457d4ce2 --- 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 11:59:06,061 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:59:06,063 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:59:06,087 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:59:06,087 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:59:06,089 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:59:06,091 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:59:06,093 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:59:06,096 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:59:06,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:59:06,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:59:06,100 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:59:06,101 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:59:06,102 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:59:06,104 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:59:06,105 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:59:06,106 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:59:06,108 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:59:06,110 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:59:06,113 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:59:06,115 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:59:06,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:59:06,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:59:06,120 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:59:06,126 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:59:06,126 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:59:06,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:59:06,128 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:59:06,129 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:59:06,130 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:59:06,131 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:59:06,132 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:59:06,133 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:59:06,133 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:59:06,134 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:59:06,135 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:59:06,135 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:59:06,135 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:59:06,136 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:59:06,137 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:59:06,137 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:59:06,138 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5c2bc-2dee-4903-a24a-6638f6ca8c9b/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 11:59:06,157 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:59:06,163 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:59:06,164 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:59:06,164 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:59:06,165 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:59:06,165 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:59:06,165 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:59:06,165 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:59:06,165 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:59:06,166 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:59:06,166 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:59:06,166 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:59:06,166 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:59:06,166 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:59:06,167 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:59:06,167 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:59:06,167 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:59:06,167 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:59:06,168 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:59:06,168 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:59:06,168 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 11:59:06,168 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:59:06,169 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:59:06,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:59:06,169 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:59:06,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:59:06,169 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:59:06,170 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 11:59:06,170 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:59:06,170 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:59:06,170 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:59:06,170 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:59:06,171 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:59:06,171 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:59:06,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:59:06,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:59:06,171 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:59:06,172 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:59:06,172 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:59:06,172 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:59:06,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:59:06,172 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:59:06,173 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:59:06,173 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_bab5c2bc-2dee-4903-a24a-6638f6ca8c9b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5c2bc-2dee-4903-a24a-6638f6ca8c9b/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44a86740b4b3d791346dd5ab0675f134d34312247f7633c0f06bf117457d4ce2 [2022-12-14 11:59:06,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:59:06,365 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:59:06,368 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:59:06,369 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:59:06,370 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:59:06,371 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5c2bc-2dee-4903-a24a-6638f6ca8c9b/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c [2022-12-14 11:59:08,911 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:59:09,065 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:59:09,065 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5c2bc-2dee-4903-a24a-6638f6ca8c9b/sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c [2022-12-14 11:59:09,072 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5c2bc-2dee-4903-a24a-6638f6ca8c9b/bin/utaipan-gh47qXpMRh/data/43248fe8c/25649e9a76da46d1871fcb1491323814/FLAG124fc3f12 [2022-12-14 11:59:09,083 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5c2bc-2dee-4903-a24a-6638f6ca8c9b/bin/utaipan-gh47qXpMRh/data/43248fe8c/25649e9a76da46d1871fcb1491323814 [2022-12-14 11:59:09,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:59:09,086 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:59:09,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:59:09,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:59:09,091 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:59:09,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:59:09" (1/1) ... [2022-12-14 11:59:09,092 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ccc7a4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:59:09, skipping insertion in model container [2022-12-14 11:59:09,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:59:09" (1/1) ... [2022-12-14 11:59:09,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:59:09,116 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:59:09,265 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:59:09,268 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:59:09,270 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:59:09,272 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:59:09,273 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:59:09,275 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:59:09,285 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_bab5c2bc-2dee-4903-a24a-6638f6ca8c9b/sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c[3481,3494] [2022-12-14 11:59:09,291 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:59:09,301 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:59:09,314 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:59:09,316 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:59:09,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:59:09,319 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:59:09,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:59:09,321 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:59:09,328 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_bab5c2bc-2dee-4903-a24a-6638f6ca8c9b/sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c[3481,3494] [2022-12-14 11:59:09,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:59:09,344 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:59:09,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:59:09 WrapperNode [2022-12-14 11:59:09,344 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:59:09,345 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:59:09,345 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:59:09,345 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:59:09,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:59:09" (1/1) ... [2022-12-14 11:59:09,357 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:59:09" (1/1) ... [2022-12-14 11:59:09,394 INFO L138 Inliner]: procedures = 23, calls = 45, calls flagged for inlining = 17, calls inlined = 39, statements flattened = 517 [2022-12-14 11:59:09,395 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:59:09,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:59:09,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:59:09,396 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:59:09,404 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:59:09" (1/1) ... [2022-12-14 11:59:09,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:59:09" (1/1) ... [2022-12-14 11:59:09,410 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:59:09" (1/1) ... [2022-12-14 11:59:09,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:59:09" (1/1) ... [2022-12-14 11:59:09,425 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:59:09" (1/1) ... [2022-12-14 11:59:09,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:59:09" (1/1) ... [2022-12-14 11:59:09,434 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:59:09" (1/1) ... [2022-12-14 11:59:09,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:59:09" (1/1) ... [2022-12-14 11:59:09,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:59:09,444 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:59:09,444 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:59:09,444 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:59:09,445 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:59:09" (1/1) ... [2022-12-14 11:59:09,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:59:09,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5c2bc-2dee-4903-a24a-6638f6ca8c9b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:59:09,471 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5c2bc-2dee-4903-a24a-6638f6ca8c9b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:59:09,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5c2bc-2dee-4903-a24a-6638f6ca8c9b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:59:09,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:59:09,506 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-14 11:59:09,506 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-14 11:59:09,506 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-14 11:59:09,507 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-14 11:59:09,507 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-14 11:59:09,507 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-14 11:59:09,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:59:09,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 11:59:09,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 11:59:09,508 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-14 11:59:09,508 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-14 11:59:09,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:59:09,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:59:09,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 11:59:09,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 11:59:09,510 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 11:59:09,602 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:59:09,604 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:59:10,192 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:59:13,805 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:59:13,806 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 11:59:13,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:59:13 BoogieIcfgContainer [2022-12-14 11:59:13,808 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:59:13,809 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:59:13,810 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:59:13,812 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:59:13,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:59:09" (1/3) ... [2022-12-14 11:59:13,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b35fabd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:59:13, skipping insertion in model container [2022-12-14 11:59:13,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:59:09" (2/3) ... [2022-12-14 11:59:13,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b35fabd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:59:13, skipping insertion in model container [2022-12-14 11:59:13,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:59:13" (3/3) ... [2022-12-14 11:59:13,814 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-collitem-trans.wvr.c [2022-12-14 11:59:13,821 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 11:59:13,828 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:59:13,829 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 72 error locations. [2022-12-14 11:59:13,829 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 11:59:14,657 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-14 11:59:14,680 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 11:59:14,689 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 205 places, 196 transitions, 416 flow [2022-12-14 11:59:14,691 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 205 places, 196 transitions, 416 flow [2022-12-14 11:59:14,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 205 places, 196 transitions, 416 flow [2022-12-14 11:59:14,903 INFO L130 PetriNetUnfolder]: 1/193 cut-off events. [2022-12-14 11:59:14,903 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-14 11:59:14,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 193 events. 1/193 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 505 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place. [2022-12-14 11:59:14,908 INFO L119 LiptonReduction]: Number of co-enabled transitions 6318 [2022-12-14 11:59:20,888 WARN L233 SmtUtils]: Spent 5.92s on a formula simplification. DAG size of input: 1141 DAG size of output: 446 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 11:59:30,509 WARN L233 SmtUtils]: Spent 8.42s on a formula simplification. DAG size of input: 1329 DAG size of output: 586 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 11:59:55,361 WARN L233 SmtUtils]: Spent 6.38s on a formula simplification. DAG size of input: 1073 DAG size of output: 542 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 12:00:11,148 INFO L134 LiptonReduction]: Checked pairs total: 4906 [2022-12-14 12:00:11,148 INFO L136 LiptonReduction]: Total number of compositions: 112 [2022-12-14 12:00:11,153 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 101 places, 91 transitions, 206 flow [2022-12-14 12:00:11,829 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 37956 states, 22332 states have (on average 5.6899964176965785) internal successors, (127069), 37955 states have internal predecessors, (127069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:11,845 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:00:11,849 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;@17180103, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:00:11,849 INFO L358 AbstractCegarLoop]: Starting to check reachability of 147 error locations. [2022-12-14 12:00:11,880 INFO L276 IsEmpty]: Start isEmpty. Operand has 37956 states, 22332 states have (on average 5.6899964176965785) internal successors, (127069), 37955 states have internal predecessors, (127069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:11,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 12:00:11,885 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:00:11,885 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 12:00:11,886 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 12:00:11,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:00:11,891 INFO L85 PathProgramCache]: Analyzing trace with hash 2661323, now seen corresponding path program 1 times [2022-12-14 12:00:11,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:00:11,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533243519] [2022-12-14 12:00:11,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:00:11,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:00:12,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:00:12,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:00:12,096 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:00:12,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533243519] [2022-12-14 12:00:12,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533243519] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:00:12,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:00:12,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 12:00:12,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235479479] [2022-12-14 12:00:12,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:00:12,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 12:00:12,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:00:12,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 12:00:12,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 12:00:12,150 INFO L87 Difference]: Start difference. First operand has 37956 states, 22332 states have (on average 5.6899964176965785) internal successors, (127069), 37955 states have internal predecessors, (127069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:12,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:00:12,693 INFO L93 Difference]: Finished difference Result 13028 states and 42749 transitions. [2022-12-14 12:00:12,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 12:00:12,695 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 12:00:12,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:00:12,817 INFO L225 Difference]: With dead ends: 13028 [2022-12-14 12:00:12,817 INFO L226 Difference]: Without dead ends: 13028 [2022-12-14 12:00:12,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 12:00:12,821 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 12:00:12,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 12:00:12,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13028 states. [2022-12-14 12:00:13,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13028 to 13028. [2022-12-14 12:00:13,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13028 states, 8116 states have (on average 5.267249876786594) internal successors, (42749), 13027 states have internal predecessors, (42749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:13,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13028 states to 13028 states and 42749 transitions. [2022-12-14 12:00:13,272 INFO L78 Accepts]: Start accepts. Automaton has 13028 states and 42749 transitions. Word has length 3 [2022-12-14 12:00:13,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:00:13,273 INFO L495 AbstractCegarLoop]: Abstraction has 13028 states and 42749 transitions. [2022-12-14 12:00:13,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:13,273 INFO L276 IsEmpty]: Start isEmpty. Operand 13028 states and 42749 transitions. [2022-12-14 12:00:13,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 12:00:13,274 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:00:13,274 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 12:00:13,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 12:00:13,275 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 12:00:13,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:00:13,275 INFO L85 PathProgramCache]: Analyzing trace with hash 2661334, now seen corresponding path program 1 times [2022-12-14 12:00:13,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:00:13,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800800141] [2022-12-14 12:00:13,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:00:13,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:00:13,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:00:13,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:00:13,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:00:13,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800800141] [2022-12-14 12:00:13,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800800141] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:00:13,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:00:13,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 12:00:13,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921001497] [2022-12-14 12:00:13,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:00:13,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:00:13,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:00:13,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:00:13,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:00:13,659 INFO L87 Difference]: Start difference. First operand 13028 states and 42749 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:14,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:00:14,118 INFO L93 Difference]: Finished difference Result 11692 states and 38261 transitions. [2022-12-14 12:00:14,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:00:14,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 12:00:14,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:00:14,182 INFO L225 Difference]: With dead ends: 11692 [2022-12-14 12:00:14,182 INFO L226 Difference]: Without dead ends: 11692 [2022-12-14 12:00:14,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 12:00:14,183 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 58 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 12:00:14,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 0 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 12:00:14,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11692 states. [2022-12-14 12:00:14,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11692 to 11692. [2022-12-14 12:00:14,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11692 states, 7341 states have (on average 5.211960223402806) internal successors, (38261), 11691 states have internal predecessors, (38261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:14,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11692 states to 11692 states and 38261 transitions. [2022-12-14 12:00:14,436 INFO L78 Accepts]: Start accepts. Automaton has 11692 states and 38261 transitions. Word has length 3 [2022-12-14 12:00:14,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:00:14,436 INFO L495 AbstractCegarLoop]: Abstraction has 11692 states and 38261 transitions. [2022-12-14 12:00:14,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:14,436 INFO L276 IsEmpty]: Start isEmpty. Operand 11692 states and 38261 transitions. [2022-12-14 12:00:14,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 12:00:14,437 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:00:14,437 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 12:00:14,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 12:00:14,437 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 12:00:14,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:00:14,438 INFO L85 PathProgramCache]: Analyzing trace with hash 2661336, now seen corresponding path program 1 times [2022-12-14 12:00:14,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:00:14,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503812593] [2022-12-14 12:00:14,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:00:14,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:00:14,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:00:14,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:00:14,555 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:00:14,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503812593] [2022-12-14 12:00:14,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503812593] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:00:14,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:00:14,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 12:00:14,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158012226] [2022-12-14 12:00:14,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:00:14,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:00:14,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:00:14,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:00:14,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:00:14,557 INFO L87 Difference]: Start difference. First operand 11692 states and 38261 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:14,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:00:14,892 INFO L93 Difference]: Finished difference Result 10432 states and 34047 transitions. [2022-12-14 12:00:14,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:00:14,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 12:00:14,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:00:14,932 INFO L225 Difference]: With dead ends: 10432 [2022-12-14 12:00:14,932 INFO L226 Difference]: Without dead ends: 10432 [2022-12-14 12:00:14,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 12:00:14,933 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 56 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 12:00:14,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 0 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 12:00:14,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10432 states. [2022-12-14 12:00:15,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10432 to 10432. [2022-12-14 12:00:15,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10432 states, 6593 states have (on average 5.164113453662976) internal successors, (34047), 10431 states have internal predecessors, (34047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:15,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10432 states to 10432 states and 34047 transitions. [2022-12-14 12:00:15,134 INFO L78 Accepts]: Start accepts. Automaton has 10432 states and 34047 transitions. Word has length 3 [2022-12-14 12:00:15,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:00:15,134 INFO L495 AbstractCegarLoop]: Abstraction has 10432 states and 34047 transitions. [2022-12-14 12:00:15,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:15,135 INFO L276 IsEmpty]: Start isEmpty. Operand 10432 states and 34047 transitions. [2022-12-14 12:00:15,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 12:00:15,135 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:00:15,135 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 12:00:15,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 12:00:15,135 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 12:00:15,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:00:15,135 INFO L85 PathProgramCache]: Analyzing trace with hash 2661337, now seen corresponding path program 1 times [2022-12-14 12:00:15,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:00:15,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982568441] [2022-12-14 12:00:15,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:00:15,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:00:15,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:00:15,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:00:15,297 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:00:15,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982568441] [2022-12-14 12:00:15,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982568441] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:00:15,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:00:15,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 12:00:15,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480361090] [2022-12-14 12:00:15,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:00:15,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:00:15,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:00:15,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:00:15,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:00:15,298 INFO L87 Difference]: Start difference. First operand 10432 states and 34047 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:15,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:00:15,567 INFO L93 Difference]: Finished difference Result 9244 states and 30079 transitions. [2022-12-14 12:00:15,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:00:15,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 12:00:15,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:00:15,595 INFO L225 Difference]: With dead ends: 9244 [2022-12-14 12:00:15,595 INFO L226 Difference]: Without dead ends: 9244 [2022-12-14 12:00:15,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 12:00:15,595 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 54 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 12:00:15,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 0 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 12:00:15,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9244 states. [2022-12-14 12:00:15,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9244 to 9244. [2022-12-14 12:00:15,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9244 states, 5885 states have (on average 5.111129991503823) internal successors, (30079), 9243 states have internal predecessors, (30079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:15,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9244 states to 9244 states and 30079 transitions. [2022-12-14 12:00:15,764 INFO L78 Accepts]: Start accepts. Automaton has 9244 states and 30079 transitions. Word has length 3 [2022-12-14 12:00:15,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:00:15,765 INFO L495 AbstractCegarLoop]: Abstraction has 9244 states and 30079 transitions. [2022-12-14 12:00:15,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:15,765 INFO L276 IsEmpty]: Start isEmpty. Operand 9244 states and 30079 transitions. [2022-12-14 12:00:15,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 12:00:15,765 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:00:15,766 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 12:00:15,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 12:00:15,766 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 12:00:15,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:00:15,766 INFO L85 PathProgramCache]: Analyzing trace with hash 2661339, now seen corresponding path program 1 times [2022-12-14 12:00:15,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:00:15,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771812514] [2022-12-14 12:00:15,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:00:15,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:00:15,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:00:15,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:00:15,986 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:00:15,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771812514] [2022-12-14 12:00:15,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771812514] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:00:15,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:00:15,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 12:00:15,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106350156] [2022-12-14 12:00:15,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:00:15,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:00:15,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:00:15,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:00:15,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:00:15,988 INFO L87 Difference]: Start difference. First operand 9244 states and 30079 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:16,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:00:16,265 INFO L93 Difference]: Finished difference Result 8184 states and 26537 transitions. [2022-12-14 12:00:16,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:00:16,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 12:00:16,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:00:16,286 INFO L225 Difference]: With dead ends: 8184 [2022-12-14 12:00:16,286 INFO L226 Difference]: Without dead ends: 8184 [2022-12-14 12:00:16,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 12:00:16,287 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 52 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 12:00:16,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 0 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 12:00:16,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8184 states. [2022-12-14 12:00:16,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8184 to 8184. [2022-12-14 12:00:16,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8184 states, 5260 states have (on average 5.045057034220532) internal successors, (26537), 8183 states have internal predecessors, (26537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:16,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8184 states to 8184 states and 26537 transitions. [2022-12-14 12:00:16,445 INFO L78 Accepts]: Start accepts. Automaton has 8184 states and 26537 transitions. Word has length 3 [2022-12-14 12:00:16,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:00:16,445 INFO L495 AbstractCegarLoop]: Abstraction has 8184 states and 26537 transitions. [2022-12-14 12:00:16,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:16,446 INFO L276 IsEmpty]: Start isEmpty. Operand 8184 states and 26537 transitions. [2022-12-14 12:00:16,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 12:00:16,446 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:00:16,446 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 12:00:16,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 12:00:16,446 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 12:00:16,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:00:16,447 INFO L85 PathProgramCache]: Analyzing trace with hash 2661340, now seen corresponding path program 1 times [2022-12-14 12:00:16,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:00:16,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470627545] [2022-12-14 12:00:16,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:00:16,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:00:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:00:16,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:00:16,674 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:00:16,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470627545] [2022-12-14 12:00:16,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470627545] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:00:16,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:00:16,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 12:00:16,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65014959] [2022-12-14 12:00:16,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:00:16,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:00:16,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:00:16,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:00:16,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:00:16,676 INFO L87 Difference]: Start difference. First operand 8184 states and 26537 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:16,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:00:16,930 INFO L93 Difference]: Finished difference Result 7188 states and 23215 transitions. [2022-12-14 12:00:16,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:00:16,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 12:00:16,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:00:16,954 INFO L225 Difference]: With dead ends: 7188 [2022-12-14 12:00:16,954 INFO L226 Difference]: Without dead ends: 7188 [2022-12-14 12:00:16,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 12:00:16,955 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 50 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 12:00:16,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 0 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 12:00:16,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7188 states. [2022-12-14 12:00:17,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7188 to 7188. [2022-12-14 12:00:17,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7188 states, 4669 states have (on average 4.97215677875348) internal successors, (23215), 7187 states have internal predecessors, (23215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:17,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7188 states to 7188 states and 23215 transitions. [2022-12-14 12:00:17,075 INFO L78 Accepts]: Start accepts. Automaton has 7188 states and 23215 transitions. Word has length 3 [2022-12-14 12:00:17,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:00:17,075 INFO L495 AbstractCegarLoop]: Abstraction has 7188 states and 23215 transitions. [2022-12-14 12:00:17,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:17,075 INFO L276 IsEmpty]: Start isEmpty. Operand 7188 states and 23215 transitions. [2022-12-14 12:00:17,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 12:00:17,076 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:00:17,076 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 12:00:17,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 12:00:17,076 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err19ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 12:00:17,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:00:17,076 INFO L85 PathProgramCache]: Analyzing trace with hash 2661342, now seen corresponding path program 1 times [2022-12-14 12:00:17,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:00:17,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397550829] [2022-12-14 12:00:17,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:00:17,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:00:17,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:00:17,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:00:17,128 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:00:17,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397550829] [2022-12-14 12:00:17,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397550829] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:00:17,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:00:17,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 12:00:17,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95792035] [2022-12-14 12:00:17,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:00:17,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:00:17,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:00:17,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:00:17,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:00:17,130 INFO L87 Difference]: Start difference. First operand 7188 states and 23215 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:17,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:00:17,390 INFO L93 Difference]: Finished difference Result 6260 states and 20135 transitions. [2022-12-14 12:00:17,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:00:17,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 12:00:17,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:00:17,409 INFO L225 Difference]: With dead ends: 6260 [2022-12-14 12:00:17,409 INFO L226 Difference]: Without dead ends: 6260 [2022-12-14 12:00:17,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 12:00:17,410 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 48 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 12:00:17,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 0 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 12:00:17,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6260 states. [2022-12-14 12:00:17,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6260 to 6260. [2022-12-14 12:00:17,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6260 states, 4105 states have (on average 4.904993909866017) internal successors, (20135), 6259 states have internal predecessors, (20135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:17,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6260 states to 6260 states and 20135 transitions. [2022-12-14 12:00:17,546 INFO L78 Accepts]: Start accepts. Automaton has 6260 states and 20135 transitions. Word has length 3 [2022-12-14 12:00:17,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:00:17,546 INFO L495 AbstractCegarLoop]: Abstraction has 6260 states and 20135 transitions. [2022-12-14 12:00:17,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:17,546 INFO L276 IsEmpty]: Start isEmpty. Operand 6260 states and 20135 transitions. [2022-12-14 12:00:17,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 12:00:17,547 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:00:17,547 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 12:00:17,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 12:00:17,547 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 12:00:17,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:00:17,548 INFO L85 PathProgramCache]: Analyzing trace with hash 2661324, now seen corresponding path program 1 times [2022-12-14 12:00:17,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:00:17,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321403171] [2022-12-14 12:00:17,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:00:17,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:00:17,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:00:17,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:00:17,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:00:17,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321403171] [2022-12-14 12:00:17,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321403171] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:00:17,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:00:17,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 12:00:17,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285187950] [2022-12-14 12:00:17,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:00:17,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:00:17,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:00:17,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:00:17,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:00:17,595 INFO L87 Difference]: Start difference. First operand 6260 states and 20135 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:17,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:00:17,818 INFO L93 Difference]: Finished difference Result 5396 states and 17273 transitions. [2022-12-14 12:00:17,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:00:17,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 12:00:17,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:00:17,837 INFO L225 Difference]: With dead ends: 5396 [2022-12-14 12:00:17,837 INFO L226 Difference]: Without dead ends: 5396 [2022-12-14 12:00:17,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 12:00:17,838 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 46 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 12:00:17,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 0 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 12:00:17,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5396 states. [2022-12-14 12:00:17,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5396 to 5396. [2022-12-14 12:00:17,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5396 states, 3577 states have (on average 4.828906905227845) internal successors, (17273), 5395 states have internal predecessors, (17273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:17,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5396 states to 5396 states and 17273 transitions. [2022-12-14 12:00:17,956 INFO L78 Accepts]: Start accepts. Automaton has 5396 states and 17273 transitions. Word has length 3 [2022-12-14 12:00:17,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:00:17,956 INFO L495 AbstractCegarLoop]: Abstraction has 5396 states and 17273 transitions. [2022-12-14 12:00:17,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:17,957 INFO L276 IsEmpty]: Start isEmpty. Operand 5396 states and 17273 transitions. [2022-12-14 12:00:17,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 12:00:17,957 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:00:17,957 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 12:00:17,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 12:00:17,957 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 12:00:17,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:00:17,958 INFO L85 PathProgramCache]: Analyzing trace with hash 2661325, now seen corresponding path program 1 times [2022-12-14 12:00:17,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:00:17,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592312123] [2022-12-14 12:00:17,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:00:17,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:00:17,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:00:18,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:00:18,007 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:00:18,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592312123] [2022-12-14 12:00:18,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592312123] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:00:18,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:00:18,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 12:00:18,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746566495] [2022-12-14 12:00:18,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:00:18,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:00:18,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:00:18,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:00:18,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:00:18,008 INFO L87 Difference]: Start difference. First operand 5396 states and 17273 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:18,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:00:18,227 INFO L93 Difference]: Finished difference Result 4596 states and 14629 transitions. [2022-12-14 12:00:18,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:00:18,228 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 12:00:18,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:00:18,239 INFO L225 Difference]: With dead ends: 4596 [2022-12-14 12:00:18,239 INFO L226 Difference]: Without dead ends: 4596 [2022-12-14 12:00:18,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 12:00:18,240 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 44 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 12:00:18,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 0 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 12:00:18,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4596 states. [2022-12-14 12:00:18,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4596 to 4596. [2022-12-14 12:00:18,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4596 states, 3085 states have (on average 4.741977309562398) internal successors, (14629), 4595 states have internal predecessors, (14629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:18,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4596 states to 4596 states and 14629 transitions. [2022-12-14 12:00:18,311 INFO L78 Accepts]: Start accepts. Automaton has 4596 states and 14629 transitions. Word has length 3 [2022-12-14 12:00:18,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:00:18,311 INFO L495 AbstractCegarLoop]: Abstraction has 4596 states and 14629 transitions. [2022-12-14 12:00:18,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:18,311 INFO L276 IsEmpty]: Start isEmpty. Operand 4596 states and 14629 transitions. [2022-12-14 12:00:18,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 12:00:18,311 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:00:18,311 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 12:00:18,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 12:00:18,311 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 12:00:18,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:00:18,312 INFO L85 PathProgramCache]: Analyzing trace with hash 2661343, now seen corresponding path program 1 times [2022-12-14 12:00:18,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:00:18,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119211270] [2022-12-14 12:00:18,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:00:18,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:00:18,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:00:18,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:00:18,380 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:00:18,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119211270] [2022-12-14 12:00:18,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119211270] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:00:18,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:00:18,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 12:00:18,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646131379] [2022-12-14 12:00:18,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:00:18,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:00:18,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:00:18,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:00:18,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:00:18,382 INFO L87 Difference]: Start difference. First operand 4596 states and 14629 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:18,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:00:18,605 INFO L93 Difference]: Finished difference Result 3860 states and 12203 transitions. [2022-12-14 12:00:18,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:00:18,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 12:00:18,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:00:18,615 INFO L225 Difference]: With dead ends: 3860 [2022-12-14 12:00:18,615 INFO L226 Difference]: Without dead ends: 3860 [2022-12-14 12:00:18,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 12:00:18,616 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 42 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 12:00:18,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 0 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 12:00:18,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3860 states. [2022-12-14 12:00:18,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3860 to 3860. [2022-12-14 12:00:18,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3860 states, 2629 states have (on average 4.641688855077977) internal successors, (12203), 3859 states have internal predecessors, (12203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:18,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3860 states to 3860 states and 12203 transitions. [2022-12-14 12:00:18,683 INFO L78 Accepts]: Start accepts. Automaton has 3860 states and 12203 transitions. Word has length 3 [2022-12-14 12:00:18,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:00:18,683 INFO L495 AbstractCegarLoop]: Abstraction has 3860 states and 12203 transitions. [2022-12-14 12:00:18,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:18,683 INFO L276 IsEmpty]: Start isEmpty. Operand 3860 states and 12203 transitions. [2022-12-14 12:00:18,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 12:00:18,683 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:00:18,684 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 12:00:18,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 12:00:18,684 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 12:00:18,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:00:18,684 INFO L85 PathProgramCache]: Analyzing trace with hash 2661327, now seen corresponding path program 1 times [2022-12-14 12:00:18,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:00:18,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750809005] [2022-12-14 12:00:18,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:00:18,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:00:18,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:00:18,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:00:18,792 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:00:18,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750809005] [2022-12-14 12:00:18,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750809005] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:00:18,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:00:18,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 12:00:18,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150181253] [2022-12-14 12:00:18,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:00:18,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:00:18,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:00:18,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:00:18,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:00:18,793 INFO L87 Difference]: Start difference. First operand 3860 states and 12203 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:18,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:00:18,985 INFO L93 Difference]: Finished difference Result 3256 states and 10217 transitions. [2022-12-14 12:00:18,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:00:18,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 12:00:18,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:00:18,994 INFO L225 Difference]: With dead ends: 3256 [2022-12-14 12:00:18,994 INFO L226 Difference]: Without dead ends: 3256 [2022-12-14 12:00:18,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 12:00:18,995 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 40 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 12:00:18,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 0 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 12:00:19,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3256 states. [2022-12-14 12:00:19,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3256 to 3256. [2022-12-14 12:00:19,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3256 states, 2256 states have (on average 4.528812056737588) internal successors, (10217), 3255 states have internal predecessors, (10217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:19,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3256 states to 3256 states and 10217 transitions. [2022-12-14 12:00:19,046 INFO L78 Accepts]: Start accepts. Automaton has 3256 states and 10217 transitions. Word has length 3 [2022-12-14 12:00:19,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:00:19,046 INFO L495 AbstractCegarLoop]: Abstraction has 3256 states and 10217 transitions. [2022-12-14 12:00:19,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:19,046 INFO L276 IsEmpty]: Start isEmpty. Operand 3256 states and 10217 transitions. [2022-12-14 12:00:19,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 12:00:19,047 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:00:19,047 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 12:00:19,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 12:00:19,047 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 12:00:19,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:00:19,047 INFO L85 PathProgramCache]: Analyzing trace with hash 2661328, now seen corresponding path program 1 times [2022-12-14 12:00:19,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:00:19,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851495039] [2022-12-14 12:00:19,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:00:19,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:00:19,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:00:19,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:00:19,157 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:00:19,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851495039] [2022-12-14 12:00:19,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851495039] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:00:19,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:00:19,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 12:00:19,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127959096] [2022-12-14 12:00:19,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:00:19,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:00:19,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:00:19,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:00:19,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:00:19,159 INFO L87 Difference]: Start difference. First operand 3256 states and 10217 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:19,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:00:19,314 INFO L93 Difference]: Finished difference Result 2700 states and 8395 transitions. [2022-12-14 12:00:19,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:00:19,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 12:00:19,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:00:19,320 INFO L225 Difference]: With dead ends: 2700 [2022-12-14 12:00:19,320 INFO L226 Difference]: Without dead ends: 2700 [2022-12-14 12:00:19,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 12:00:19,320 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 38 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:00:19,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 0 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:00:19,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2700 states. [2022-12-14 12:00:19,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2700 to 2700. [2022-12-14 12:00:19,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2700 states, 1909 states have (on average 4.397590361445783) internal successors, (8395), 2699 states have internal predecessors, (8395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:19,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2700 states to 2700 states and 8395 transitions. [2022-12-14 12:00:19,353 INFO L78 Accepts]: Start accepts. Automaton has 2700 states and 8395 transitions. Word has length 3 [2022-12-14 12:00:19,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:00:19,353 INFO L495 AbstractCegarLoop]: Abstraction has 2700 states and 8395 transitions. [2022-12-14 12:00:19,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:19,353 INFO L276 IsEmpty]: Start isEmpty. Operand 2700 states and 8395 transitions. [2022-12-14 12:00:19,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 12:00:19,353 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:00:19,353 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 12:00:19,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 12:00:19,354 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err22ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 12:00:19,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:00:19,354 INFO L85 PathProgramCache]: Analyzing trace with hash 2661345, now seen corresponding path program 1 times [2022-12-14 12:00:19,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:00:19,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083094464] [2022-12-14 12:00:19,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:00:19,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:00:19,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:00:19,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:00:19,455 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:00:19,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083094464] [2022-12-14 12:00:19,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083094464] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:00:19,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:00:19,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 12:00:19,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932953878] [2022-12-14 12:00:19,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:00:19,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:00:19,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:00:19,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:00:19,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:00:19,457 INFO L87 Difference]: Start difference. First operand 2700 states and 8395 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:19,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:00:19,633 INFO L93 Difference]: Finished difference Result 2192 states and 6737 transitions. [2022-12-14 12:00:19,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:00:19,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 12:00:19,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:00:19,638 INFO L225 Difference]: With dead ends: 2192 [2022-12-14 12:00:19,638 INFO L226 Difference]: Without dead ends: 2192 [2022-12-14 12:00:19,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 12:00:19,639 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 36 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 12:00:19,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 0 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 12:00:19,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2192 states. [2022-12-14 12:00:19,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2192 to 2192. [2022-12-14 12:00:19,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2192 states, 1588 states have (on average 4.242443324937028) internal successors, (6737), 2191 states have internal predecessors, (6737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:19,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2192 states to 2192 states and 6737 transitions. [2022-12-14 12:00:19,664 INFO L78 Accepts]: Start accepts. Automaton has 2192 states and 6737 transitions. Word has length 3 [2022-12-14 12:00:19,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:00:19,664 INFO L495 AbstractCegarLoop]: Abstraction has 2192 states and 6737 transitions. [2022-12-14 12:00:19,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:19,665 INFO L276 IsEmpty]: Start isEmpty. Operand 2192 states and 6737 transitions. [2022-12-14 12:00:19,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 12:00:19,665 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:00:19,665 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 12:00:19,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 12:00:19,665 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err23ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 12:00:19,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:00:19,665 INFO L85 PathProgramCache]: Analyzing trace with hash 2661346, now seen corresponding path program 1 times [2022-12-14 12:00:19,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:00:19,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002571950] [2022-12-14 12:00:19,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:00:19,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:00:19,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:00:19,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:00:19,784 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:00:19,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002571950] [2022-12-14 12:00:19,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002571950] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:00:19,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:00:19,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 12:00:19,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76561711] [2022-12-14 12:00:19,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:00:19,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:00:19,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:00:19,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:00:19,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:00:19,785 INFO L87 Difference]: Start difference. First operand 2192 states and 6737 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:19,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:00:19,951 INFO L93 Difference]: Finished difference Result 1732 states and 5243 transitions. [2022-12-14 12:00:19,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:00:19,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 12:00:19,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:00:19,958 INFO L225 Difference]: With dead ends: 1732 [2022-12-14 12:00:19,958 INFO L226 Difference]: Without dead ends: 1732 [2022-12-14 12:00:19,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 12:00:19,959 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 34 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 12:00:19,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 0 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 12:00:19,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1732 states. [2022-12-14 12:00:19,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1732 to 1732. [2022-12-14 12:00:19,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1732 states, 1293 states have (on average 4.054911059551431) internal successors, (5243), 1731 states have internal predecessors, (5243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:19,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 5243 transitions. [2022-12-14 12:00:19,992 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 5243 transitions. Word has length 3 [2022-12-14 12:00:19,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:00:19,992 INFO L495 AbstractCegarLoop]: Abstraction has 1732 states and 5243 transitions. [2022-12-14 12:00:19,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:19,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 5243 transitions. [2022-12-14 12:00:19,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 12:00:19,993 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:00:19,993 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 12:00:19,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 12:00:19,993 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 12:00:19,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:00:19,994 INFO L85 PathProgramCache]: Analyzing trace with hash 2661330, now seen corresponding path program 1 times [2022-12-14 12:00:19,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:00:19,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681855966] [2022-12-14 12:00:19,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:00:19,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:00:20,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:00:20,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:00:20,047 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:00:20,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681855966] [2022-12-14 12:00:20,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681855966] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:00:20,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:00:20,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 12:00:20,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463296717] [2022-12-14 12:00:20,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:00:20,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:00:20,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:00:20,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:00:20,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:00:20,048 INFO L87 Difference]: Start difference. First operand 1732 states and 5243 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:20,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:00:20,185 INFO L93 Difference]: Finished difference Result 1324 states and 3927 transitions. [2022-12-14 12:00:20,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:00:20,185 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 12:00:20,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:00:20,189 INFO L225 Difference]: With dead ends: 1324 [2022-12-14 12:00:20,189 INFO L226 Difference]: Without dead ends: 1324 [2022-12-14 12:00:20,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 12:00:20,190 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 32 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:00:20,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 0 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:00:20,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1324 states. [2022-12-14 12:00:20,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1324 to 1324. [2022-12-14 12:00:20,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1324 states, 1025 states have (on average 3.831219512195122) internal successors, (3927), 1323 states have internal predecessors, (3927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:20,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 3927 transitions. [2022-12-14 12:00:20,207 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 3927 transitions. Word has length 3 [2022-12-14 12:00:20,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:00:20,207 INFO L495 AbstractCegarLoop]: Abstraction has 1324 states and 3927 transitions. [2022-12-14 12:00:20,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:20,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 3927 transitions. [2022-12-14 12:00:20,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 12:00:20,207 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:00:20,207 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 12:00:20,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 12:00:20,207 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 12:00:20,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:00:20,208 INFO L85 PathProgramCache]: Analyzing trace with hash 2661331, now seen corresponding path program 1 times [2022-12-14 12:00:20,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:00:20,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437595031] [2022-12-14 12:00:20,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:00:20,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:00:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:00:20,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:00:20,262 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:00:20,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437595031] [2022-12-14 12:00:20,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437595031] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:00:20,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:00:20,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 12:00:20,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41351750] [2022-12-14 12:00:20,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:00:20,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:00:20,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:00:20,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:00:20,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:00:20,264 INFO L87 Difference]: Start difference. First operand 1324 states and 3927 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:20,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:00:20,393 INFO L93 Difference]: Finished difference Result 964 states and 2773 transitions. [2022-12-14 12:00:20,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:00:20,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 12:00:20,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:00:20,395 INFO L225 Difference]: With dead ends: 964 [2022-12-14 12:00:20,395 INFO L226 Difference]: Without dead ends: 964 [2022-12-14 12:00:20,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 12:00:20,396 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 30 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:00:20,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 0 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:00:20,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2022-12-14 12:00:20,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 964. [2022-12-14 12:00:20,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 964 states, 785 states have (on average 3.532484076433121) internal successors, (2773), 963 states have internal predecessors, (2773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:20,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 2773 transitions. [2022-12-14 12:00:20,407 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 2773 transitions. Word has length 3 [2022-12-14 12:00:20,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:00:20,407 INFO L495 AbstractCegarLoop]: Abstraction has 964 states and 2773 transitions. [2022-12-14 12:00:20,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:20,407 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 2773 transitions. [2022-12-14 12:00:20,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 12:00:20,407 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:00:20,407 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 12:00:20,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 12:00:20,408 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 12:00:20,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:00:20,408 INFO L85 PathProgramCache]: Analyzing trace with hash 2661333, now seen corresponding path program 1 times [2022-12-14 12:00:20,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:00:20,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289580132] [2022-12-14 12:00:20,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:00:20,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:00:20,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:00:20,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:00:20,548 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:00:20,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289580132] [2022-12-14 12:00:20,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289580132] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:00:20,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:00:20,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 12:00:20,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512756067] [2022-12-14 12:00:20,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:00:20,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:00:20,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:00:20,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:00:20,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:00:20,549 INFO L87 Difference]: Start difference. First operand 964 states and 2773 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:20,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:00:20,672 INFO L93 Difference]: Finished difference Result 660 states and 1805 transitions. [2022-12-14 12:00:20,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:00:20,672 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 12:00:20,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:00:20,674 INFO L225 Difference]: With dead ends: 660 [2022-12-14 12:00:20,674 INFO L226 Difference]: Without dead ends: 658 [2022-12-14 12:00:20,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 12:00:20,674 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 28 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:00:20,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 0 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:00:20,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2022-12-14 12:00:20,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 658. [2022-12-14 12:00:20,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 578 states have (on average 3.114186851211073) internal successors, (1800), 657 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:20,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 1800 transitions. [2022-12-14 12:00:20,683 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 1800 transitions. Word has length 3 [2022-12-14 12:00:20,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:00:20,683 INFO L495 AbstractCegarLoop]: Abstraction has 658 states and 1800 transitions. [2022-12-14 12:00:20,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:20,683 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 1800 transitions. [2022-12-14 12:00:20,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 12:00:20,683 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:00:20,683 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 12:00:20,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 12:00:20,684 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 12:00:20,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:00:20,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1737188512, now seen corresponding path program 1 times [2022-12-14 12:00:20,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:00:20,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655296992] [2022-12-14 12:00:20,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:00:20,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:00:20,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:00:20,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:00:20,716 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:00:20,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655296992] [2022-12-14 12:00:20,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655296992] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:00:20,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:00:20,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 12:00:20,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089268011] [2022-12-14 12:00:20,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:00:20,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:00:20,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:00:20,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:00:20,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:00:20,717 INFO L87 Difference]: Start difference. First operand 658 states and 1800 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:20,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:00:20,832 INFO L93 Difference]: Finished difference Result 538 states and 1456 transitions. [2022-12-14 12:00:20,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:00:20,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 12:00:20,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:00:20,834 INFO L225 Difference]: With dead ends: 538 [2022-12-14 12:00:20,834 INFO L226 Difference]: Without dead ends: 538 [2022-12-14 12:00:20,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 12:00:20,835 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 24 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:00:20,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 0 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:00:20,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2022-12-14 12:00:20,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2022-12-14 12:00:20,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 475 states have (on average 3.0652631578947367) internal successors, (1456), 537 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:20,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1456 transitions. [2022-12-14 12:00:20,841 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1456 transitions. Word has length 5 [2022-12-14 12:00:20,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:00:20,842 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 1456 transitions. [2022-12-14 12:00:20,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:20,842 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1456 transitions. [2022-12-14 12:00:20,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 12:00:20,842 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:00:20,842 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 12:00:20,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 12:00:20,842 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 12:00:20,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:00:20,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1737188511, now seen corresponding path program 1 times [2022-12-14 12:00:20,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:00:20,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119941585] [2022-12-14 12:00:20,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:00:20,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:00:20,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:00:20,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:00:20,885 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:00:20,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119941585] [2022-12-14 12:00:20,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119941585] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:00:20,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:00:20,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 12:00:20,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865439169] [2022-12-14 12:00:20,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:00:20,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:00:20,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:00:20,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:00:20,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:00:20,886 INFO L87 Difference]: Start difference. First operand 538 states and 1456 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:20,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:00:20,999 INFO L93 Difference]: Finished difference Result 430 states and 1148 transitions. [2022-12-14 12:00:20,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:00:21,000 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 12:00:21,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:00:21,001 INFO L225 Difference]: With dead ends: 430 [2022-12-14 12:00:21,001 INFO L226 Difference]: Without dead ends: 430 [2022-12-14 12:00:21,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 12:00:21,002 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 22 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:00:21,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 0 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:00:21,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2022-12-14 12:00:21,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2022-12-14 12:00:21,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 382 states have (on average 3.005235602094241) internal successors, (1148), 429 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:21,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 1148 transitions. [2022-12-14 12:00:21,007 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 1148 transitions. Word has length 5 [2022-12-14 12:00:21,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:00:21,007 INFO L495 AbstractCegarLoop]: Abstraction has 430 states and 1148 transitions. [2022-12-14 12:00:21,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:21,007 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 1148 transitions. [2022-12-14 12:00:21,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 12:00:21,008 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:00:21,008 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 12:00:21,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 12:00:21,008 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err19ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 12:00:21,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:00:21,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1737188494, now seen corresponding path program 1 times [2022-12-14 12:00:21,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:00:21,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852251185] [2022-12-14 12:00:21,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:00:21,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:00:21,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:00:21,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:00:21,135 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:00:21,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852251185] [2022-12-14 12:00:21,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852251185] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:00:21,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:00:21,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 12:00:21,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41979553] [2022-12-14 12:00:21,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:00:21,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:00:21,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:00:21,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:00:21,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:00:21,136 INFO L87 Difference]: Start difference. First operand 430 states and 1148 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:21,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:00:21,214 INFO L93 Difference]: Finished difference Result 334 states and 876 transitions. [2022-12-14 12:00:21,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:00:21,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 12:00:21,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:00:21,215 INFO L225 Difference]: With dead ends: 334 [2022-12-14 12:00:21,215 INFO L226 Difference]: Without dead ends: 334 [2022-12-14 12:00:21,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 12:00:21,216 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 20 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:00:21,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 0 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:00:21,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-12-14 12:00:21,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2022-12-14 12:00:21,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 299 states have (on average 2.9297658862876252) internal successors, (876), 333 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:21,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 876 transitions. [2022-12-14 12:00:21,222 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 876 transitions. Word has length 5 [2022-12-14 12:00:21,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:00:21,222 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 876 transitions. [2022-12-14 12:00:21,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:21,222 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 876 transitions. [2022-12-14 12:00:21,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 12:00:21,222 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:00:21,222 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 12:00:21,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 12:00:21,222 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err20ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 12:00:21,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:00:21,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1737188493, now seen corresponding path program 1 times [2022-12-14 12:00:21,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:00:21,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610995967] [2022-12-14 12:00:21,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:00:21,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:00:21,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:00:21,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:00:21,431 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:00:21,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610995967] [2022-12-14 12:00:21,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610995967] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:00:21,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:00:21,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 12:00:21,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046727958] [2022-12-14 12:00:21,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:00:21,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:00:21,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:00:21,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:00:21,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:00:21,433 INFO L87 Difference]: Start difference. First operand 334 states and 876 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:21,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:00:21,504 INFO L93 Difference]: Finished difference Result 250 states and 640 transitions. [2022-12-14 12:00:21,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:00:21,505 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 12:00:21,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:00:21,505 INFO L225 Difference]: With dead ends: 250 [2022-12-14 12:00:21,505 INFO L226 Difference]: Without dead ends: 250 [2022-12-14 12:00:21,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 12:00:21,506 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 18 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:00:21,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 0 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:00:21,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-12-14 12:00:21,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2022-12-14 12:00:21,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 226 states have (on average 2.831858407079646) internal successors, (640), 249 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:21,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 640 transitions. [2022-12-14 12:00:21,511 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 640 transitions. Word has length 5 [2022-12-14 12:00:21,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:00:21,511 INFO L495 AbstractCegarLoop]: Abstraction has 250 states and 640 transitions. [2022-12-14 12:00:21,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:21,511 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 640 transitions. [2022-12-14 12:00:21,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 12:00:21,511 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:00:21,511 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 12:00:21,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 12:00:21,512 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 12:00:21,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:00:21,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1737188506, now seen corresponding path program 1 times [2022-12-14 12:00:21,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:00:21,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948607085] [2022-12-14 12:00:21,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:00:21,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:00:21,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:00:21,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:00:21,547 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:00:21,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948607085] [2022-12-14 12:00:21,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948607085] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:00:21,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:00:21,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 12:00:21,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908011659] [2022-12-14 12:00:21,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:00:21,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:00:21,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:00:21,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:00:21,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:00:21,548 INFO L87 Difference]: Start difference. First operand 250 states and 640 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:21,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:00:21,600 INFO L93 Difference]: Finished difference Result 178 states and 440 transitions. [2022-12-14 12:00:21,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:00:21,600 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 12:00:21,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:00:21,601 INFO L225 Difference]: With dead ends: 178 [2022-12-14 12:00:21,601 INFO L226 Difference]: Without dead ends: 178 [2022-12-14 12:00:21,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 12:00:21,602 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 16 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:00:21,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 0 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:00:21,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2022-12-14 12:00:21,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2022-12-14 12:00:21,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 163 states have (on average 2.6993865030674846) internal successors, (440), 177 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:21,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 440 transitions. [2022-12-14 12:00:21,605 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 440 transitions. Word has length 5 [2022-12-14 12:00:21,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:00:21,605 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 440 transitions. [2022-12-14 12:00:21,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:21,605 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 440 transitions. [2022-12-14 12:00:21,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 12:00:21,606 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:00:21,606 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 12:00:21,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 12:00:21,606 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 12:00:21,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:00:21,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1737188505, now seen corresponding path program 1 times [2022-12-14 12:00:21,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:00:21,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207384938] [2022-12-14 12:00:21,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:00:21,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:00:21,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:00:21,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:00:21,653 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:00:21,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207384938] [2022-12-14 12:00:21,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207384938] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:00:21,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:00:21,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 12:00:21,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554924516] [2022-12-14 12:00:21,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:00:21,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:00:21,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:00:21,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:00:21,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:00:21,654 INFO L87 Difference]: Start difference. First operand 178 states and 440 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:21,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:00:21,705 INFO L93 Difference]: Finished difference Result 118 states and 276 transitions. [2022-12-14 12:00:21,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:00:21,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 12:00:21,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:00:21,705 INFO L225 Difference]: With dead ends: 118 [2022-12-14 12:00:21,705 INFO L226 Difference]: Without dead ends: 118 [2022-12-14 12:00:21,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 12:00:21,706 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 14 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:00:21,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 0 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:00:21,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-12-14 12:00:21,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2022-12-14 12:00:21,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 110 states have (on average 2.5090909090909093) internal successors, (276), 117 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:21,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 276 transitions. [2022-12-14 12:00:21,709 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 276 transitions. Word has length 5 [2022-12-14 12:00:21,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:00:21,709 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 276 transitions. [2022-12-14 12:00:21,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:21,709 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 276 transitions. [2022-12-14 12:00:21,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 12:00:21,710 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:00:21,710 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 12:00:21,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 12:00:21,710 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 12:00:21,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:00:21,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1737188500, now seen corresponding path program 1 times [2022-12-14 12:00:21,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:00:21,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126877025] [2022-12-14 12:00:21,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:00:21,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:00:21,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:00:21,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:00:21,748 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:00:21,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126877025] [2022-12-14 12:00:21,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126877025] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:00:21,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:00:21,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 12:00:21,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144245813] [2022-12-14 12:00:21,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:00:21,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:00:21,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:00:21,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:00:21,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:00:21,749 INFO L87 Difference]: Start difference. First operand 118 states and 276 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:21,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:00:21,788 INFO L93 Difference]: Finished difference Result 70 states and 148 transitions. [2022-12-14 12:00:21,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:00:21,788 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 12:00:21,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:00:21,788 INFO L225 Difference]: With dead ends: 70 [2022-12-14 12:00:21,788 INFO L226 Difference]: Without dead ends: 70 [2022-12-14 12:00:21,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 12:00:21,789 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 12 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:00:21,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 0 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:00:21,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-12-14 12:00:21,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-12-14 12:00:21,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 67 states have (on average 2.208955223880597) internal successors, (148), 69 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:21,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 148 transitions. [2022-12-14 12:00:21,790 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 148 transitions. Word has length 5 [2022-12-14 12:00:21,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:00:21,790 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 148 transitions. [2022-12-14 12:00:21,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:21,790 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 148 transitions. [2022-12-14 12:00:21,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 12:00:21,791 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:00:21,791 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 12:00:21,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-14 12:00:21,791 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2022-12-14 12:00:21,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:00:21,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1737188499, now seen corresponding path program 1 times [2022-12-14 12:00:21,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:00:21,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952582021] [2022-12-14 12:00:21,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:00:21,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:00:21,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:00:21,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:00:21,887 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:00:21,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952582021] [2022-12-14 12:00:21,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952582021] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:00:21,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:00:21,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 12:00:21,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561827250] [2022-12-14 12:00:21,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:00:21,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:00:21,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:00:21,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:00:21,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:00:21,888 INFO L87 Difference]: Start difference. First operand 70 states and 148 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:21,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:00:21,923 INFO L93 Difference]: Finished difference Result 34 states and 56 transitions. [2022-12-14 12:00:21,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:00:21,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 12:00:21,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:00:21,923 INFO L225 Difference]: With dead ends: 34 [2022-12-14 12:00:21,923 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 12:00:21,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 12:00:21,924 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:00:21,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 0 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:00:21,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 12:00:21,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 12:00:21,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:21,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 12:00:21,924 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2022-12-14 12:00:21,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:00:21,924 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 12:00:21,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:00:21,924 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 12:00:21,924 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 12:00:21,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (146 of 147 remaining) [2022-12-14 12:00:21,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (145 of 147 remaining) [2022-12-14 12:00:21,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (144 of 147 remaining) [2022-12-14 12:00:21,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (143 of 147 remaining) [2022-12-14 12:00:21,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (142 of 147 remaining) [2022-12-14 12:00:21,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (141 of 147 remaining) [2022-12-14 12:00:21,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (140 of 147 remaining) [2022-12-14 12:00:21,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (139 of 147 remaining) [2022-12-14 12:00:21,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (138 of 147 remaining) [2022-12-14 12:00:21,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (137 of 147 remaining) [2022-12-14 12:00:21,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (136 of 147 remaining) [2022-12-14 12:00:21,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (135 of 147 remaining) [2022-12-14 12:00:21,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (134 of 147 remaining) [2022-12-14 12:00:21,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (133 of 147 remaining) [2022-12-14 12:00:21,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (132 of 147 remaining) [2022-12-14 12:00:21,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (131 of 147 remaining) [2022-12-14 12:00:21,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (130 of 147 remaining) [2022-12-14 12:00:21,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (129 of 147 remaining) [2022-12-14 12:00:21,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (128 of 147 remaining) [2022-12-14 12:00:21,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (127 of 147 remaining) [2022-12-14 12:00:21,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (126 of 147 remaining) [2022-12-14 12:00:21,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (125 of 147 remaining) [2022-12-14 12:00:21,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (124 of 147 remaining) [2022-12-14 12:00:21,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (123 of 147 remaining) [2022-12-14 12:00:21,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (122 of 147 remaining) [2022-12-14 12:00:21,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (121 of 147 remaining) [2022-12-14 12:00:21,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (120 of 147 remaining) [2022-12-14 12:00:21,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (119 of 147 remaining) [2022-12-14 12:00:21,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (118 of 147 remaining) [2022-12-14 12:00:21,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (117 of 147 remaining) [2022-12-14 12:00:21,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (116 of 147 remaining) [2022-12-14 12:00:21,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (115 of 147 remaining) [2022-12-14 12:00:21,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (114 of 147 remaining) [2022-12-14 12:00:21,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (113 of 147 remaining) [2022-12-14 12:00:21,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (112 of 147 remaining) [2022-12-14 12:00:21,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (111 of 147 remaining) [2022-12-14 12:00:21,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (110 of 147 remaining) [2022-12-14 12:00:21,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (109 of 147 remaining) [2022-12-14 12:00:21,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (108 of 147 remaining) [2022-12-14 12:00:21,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (107 of 147 remaining) [2022-12-14 12:00:21,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (106 of 147 remaining) [2022-12-14 12:00:21,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (105 of 147 remaining) [2022-12-14 12:00:21,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (104 of 147 remaining) [2022-12-14 12:00:21,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (103 of 147 remaining) [2022-12-14 12:00:21,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (102 of 147 remaining) [2022-12-14 12:00:21,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (101 of 147 remaining) [2022-12-14 12:00:21,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (100 of 147 remaining) [2022-12-14 12:00:21,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (99 of 147 remaining) [2022-12-14 12:00:21,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (98 of 147 remaining) [2022-12-14 12:00:21,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (97 of 147 remaining) [2022-12-14 12:00:21,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (96 of 147 remaining) [2022-12-14 12:00:21,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (95 of 147 remaining) [2022-12-14 12:00:21,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (94 of 147 remaining) [2022-12-14 12:00:21,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (93 of 147 remaining) [2022-12-14 12:00:21,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (92 of 147 remaining) [2022-12-14 12:00:21,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (91 of 147 remaining) [2022-12-14 12:00:21,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (90 of 147 remaining) [2022-12-14 12:00:21,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (89 of 147 remaining) [2022-12-14 12:00:21,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (88 of 147 remaining) [2022-12-14 12:00:21,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (87 of 147 remaining) [2022-12-14 12:00:21,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (86 of 147 remaining) [2022-12-14 12:00:21,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (85 of 147 remaining) [2022-12-14 12:00:21,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (84 of 147 remaining) [2022-12-14 12:00:21,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (83 of 147 remaining) [2022-12-14 12:00:21,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (82 of 147 remaining) [2022-12-14 12:00:21,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (81 of 147 remaining) [2022-12-14 12:00:21,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (80 of 147 remaining) [2022-12-14 12:00:21,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (79 of 147 remaining) [2022-12-14 12:00:21,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (78 of 147 remaining) [2022-12-14 12:00:21,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (77 of 147 remaining) [2022-12-14 12:00:21,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (76 of 147 remaining) [2022-12-14 12:00:21,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (75 of 147 remaining) [2022-12-14 12:00:21,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (74 of 147 remaining) [2022-12-14 12:00:21,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (73 of 147 remaining) [2022-12-14 12:00:21,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (72 of 147 remaining) [2022-12-14 12:00:21,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 147 remaining) [2022-12-14 12:00:21,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 147 remaining) [2022-12-14 12:00:21,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 147 remaining) [2022-12-14 12:00:21,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 147 remaining) [2022-12-14 12:00:21,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 147 remaining) [2022-12-14 12:00:21,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 147 remaining) [2022-12-14 12:00:21,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 147 remaining) [2022-12-14 12:00:21,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 147 remaining) [2022-12-14 12:00:21,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 147 remaining) [2022-12-14 12:00:21,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 147 remaining) [2022-12-14 12:00:21,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 147 remaining) [2022-12-14 12:00:21,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 147 remaining) [2022-12-14 12:00:21,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 147 remaining) [2022-12-14 12:00:21,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 147 remaining) [2022-12-14 12:00:21,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 147 remaining) [2022-12-14 12:00:21,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 147 remaining) [2022-12-14 12:00:21,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 147 remaining) [2022-12-14 12:00:21,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 147 remaining) [2022-12-14 12:00:21,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 147 remaining) [2022-12-14 12:00:21,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 147 remaining) [2022-12-14 12:00:21,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 147 remaining) [2022-12-14 12:00:21,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 147 remaining) [2022-12-14 12:00:21,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 147 remaining) [2022-12-14 12:00:21,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 147 remaining) [2022-12-14 12:00:21,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 147 remaining) [2022-12-14 12:00:21,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 147 remaining) [2022-12-14 12:00:21,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 147 remaining) [2022-12-14 12:00:21,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 147 remaining) [2022-12-14 12:00:21,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 147 remaining) [2022-12-14 12:00:21,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 147 remaining) [2022-12-14 12:00:21,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 147 remaining) [2022-12-14 12:00:21,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 147 remaining) [2022-12-14 12:00:21,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 147 remaining) [2022-12-14 12:00:21,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 147 remaining) [2022-12-14 12:00:21,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 147 remaining) [2022-12-14 12:00:21,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 147 remaining) [2022-12-14 12:00:21,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 147 remaining) [2022-12-14 12:00:21,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 147 remaining) [2022-12-14 12:00:21,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 147 remaining) [2022-12-14 12:00:21,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 147 remaining) [2022-12-14 12:00:21,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 147 remaining) [2022-12-14 12:00:21,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 147 remaining) [2022-12-14 12:00:21,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 147 remaining) [2022-12-14 12:00:21,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 147 remaining) [2022-12-14 12:00:21,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 147 remaining) [2022-12-14 12:00:21,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 147 remaining) [2022-12-14 12:00:21,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 147 remaining) [2022-12-14 12:00:21,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 147 remaining) [2022-12-14 12:00:21,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 147 remaining) [2022-12-14 12:00:21,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 147 remaining) [2022-12-14 12:00:21,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 147 remaining) [2022-12-14 12:00:21,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 147 remaining) [2022-12-14 12:00:21,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 147 remaining) [2022-12-14 12:00:21,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 147 remaining) [2022-12-14 12:00:21,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 147 remaining) [2022-12-14 12:00:21,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 147 remaining) [2022-12-14 12:00:21,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 147 remaining) [2022-12-14 12:00:21,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 147 remaining) [2022-12-14 12:00:21,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 147 remaining) [2022-12-14 12:00:21,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 147 remaining) [2022-12-14 12:00:21,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 147 remaining) [2022-12-14 12:00:21,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 147 remaining) [2022-12-14 12:00:21,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 147 remaining) [2022-12-14 12:00:21,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 147 remaining) [2022-12-14 12:00:21,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 147 remaining) [2022-12-14 12:00:21,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 147 remaining) [2022-12-14 12:00:21,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 147 remaining) [2022-12-14 12:00:21,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 147 remaining) [2022-12-14 12:00:21,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 147 remaining) [2022-12-14 12:00:21,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 147 remaining) [2022-12-14 12:00:21,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 147 remaining) [2022-12-14 12:00:21,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 147 remaining) [2022-12-14 12:00:21,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-14 12:00:21,943 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:00:21,948 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 12:00:21,948 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 12:00:21,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 12:00:21 BasicIcfg [2022-12-14 12:00:21,951 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 12:00:21,951 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 12:00:21,951 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 12:00:21,951 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 12:00:21,952 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:59:13" (3/4) ... [2022-12-14 12:00:21,954 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 12:00:21,959 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-12-14 12:00:21,959 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-12-14 12:00:21,959 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-12-14 12:00:21,963 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-12-14 12:00:21,963 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-14 12:00:21,964 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-14 12:00:21,964 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 12:00:21,992 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5c2bc-2dee-4903-a24a-6638f6ca8c9b/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 12:00:21,992 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 12:00:21,992 INFO L158 Benchmark]: Toolchain (without parser) took 72906.28ms. Allocated memory was 127.9MB in the beginning and 939.5MB in the end (delta: 811.6MB). Free memory was 84.7MB in the beginning and 433.3MB in the end (delta: -348.6MB). Peak memory consumption was 465.9MB. Max. memory is 16.1GB. [2022-12-14 12:00:21,992 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 127.9MB. Free memory is still 97.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 12:00:21,993 INFO L158 Benchmark]: CACSL2BoogieTranslator took 257.63ms. Allocated memory is still 127.9MB. Free memory was 84.7MB in the beginning and 72.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 12:00:21,993 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.71ms. Allocated memory is still 127.9MB. Free memory was 72.2MB in the beginning and 68.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 12:00:21,993 INFO L158 Benchmark]: Boogie Preprocessor took 47.40ms. Allocated memory is still 127.9MB. Free memory was 68.9MB in the beginning and 66.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 12:00:21,993 INFO L158 Benchmark]: RCFGBuilder took 4364.13ms. Allocated memory was 127.9MB in the beginning and 469.8MB in the end (delta: 341.8MB). Free memory was 66.3MB in the beginning and 169.3MB in the end (delta: -103.0MB). Peak memory consumption was 242.4MB. Max. memory is 16.1GB. [2022-12-14 12:00:21,993 INFO L158 Benchmark]: TraceAbstraction took 68141.26ms. Allocated memory was 469.8MB in the beginning and 939.5MB in the end (delta: 469.8MB). Free memory was 169.3MB in the beginning and 436.4MB in the end (delta: -267.1MB). Peak memory consumption was 202.6MB. Max. memory is 16.1GB. [2022-12-14 12:00:21,993 INFO L158 Benchmark]: Witness Printer took 40.75ms. Allocated memory is still 939.5MB. Free memory was 436.4MB in the beginning and 433.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 12:00:21,994 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 127.9MB. Free memory is still 97.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 257.63ms. Allocated memory is still 127.9MB. Free memory was 84.7MB in the beginning and 72.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.71ms. Allocated memory is still 127.9MB. Free memory was 72.2MB in the beginning and 68.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.40ms. Allocated memory is still 127.9MB. Free memory was 68.9MB in the beginning and 66.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 4364.13ms. Allocated memory was 127.9MB in the beginning and 469.8MB in the end (delta: 341.8MB). Free memory was 66.3MB in the beginning and 169.3MB in the end (delta: -103.0MB). Peak memory consumption was 242.4MB. Max. memory is 16.1GB. * TraceAbstraction took 68141.26ms. Allocated memory was 469.8MB in the beginning and 939.5MB in the end (delta: 469.8MB). Free memory was 169.3MB in the beginning and 436.4MB in the end (delta: -267.1MB). Peak memory consumption was 202.6MB. Max. memory is 16.1GB. * Witness Printer took 40.75ms. Allocated memory is still 939.5MB. Free memory was 436.4MB in the beginning and 433.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 56.5s, 205 PlacesBefore, 101 PlacesAfterwards, 196 TransitionsBefore, 91 TransitionsAfterwards, 6318 CoEnabledTransitionPairs, 8 FixpointIterations, 86 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 112 TotalNumberOfCompositions, 4906 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4906, independent: 4906, independent conditional: 0, independent unconditional: 4906, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1369, independent: 1369, independent conditional: 0, independent unconditional: 1369, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1369, independent: 1369, independent conditional: 0, independent unconditional: 1369, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4906, independent: 3537, independent conditional: 0, independent unconditional: 3537, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1369, unknown conditional: 0, unknown unconditional: 1369] , Statistics on independence cache: Total cache size (in pairs): 390, Positive cache size: 390, Positive conditional cache size: 0, Positive unconditional cache size: 390, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 283 locations, 147 error locations. Started 1 CEGAR loops. OverallTime: 67.3s, OverallIterations: 25, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 57.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 824 SdHoareTripleChecker+Valid, 4.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 824 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 3.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 950 IncrementalHoareTripleChecker+Invalid, 997 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 0 mSDtfsCounter, 950 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37956occurred in iteration=0, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 25 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 258 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 25 InterpolantComputations, 25 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 72 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-14 12:00:22,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab5c2bc-2dee-4903-a24a-6638f6ca8c9b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE