./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e7698d-9d24-4872-b0f2-8842d04d4dd7/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e7698d-9d24-4872-b0f2-8842d04d4dd7/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e7698d-9d24-4872-b0f2-8842d04d4dd7/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e7698d-9d24-4872-b0f2-8842d04d4dd7/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e7698d-9d24-4872-b0f2-8842d04d4dd7/bin/utaipan-7li7fVZpFI/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e7698d-9d24-4872-b0f2-8842d04d4dd7/bin/utaipan-7li7fVZpFI --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 9205365dcda04af07212d180b1c6367c5de79b6e0d2e09ec11b949fed58626f5 --- 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-5e519f3 [2022-11-03 01:51:34,291 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:51:34,293 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:51:34,320 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:51:34,321 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:51:34,322 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:51:34,323 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:51:34,325 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:51:34,327 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:51:34,328 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:51:34,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:51:34,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:51:34,331 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:51:34,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:51:34,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:51:34,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:51:34,335 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:51:34,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:51:34,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:51:34,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:51:34,342 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:51:34,343 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:51:34,344 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:51:34,345 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:51:34,349 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:51:34,350 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:51:34,350 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:51:34,351 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:51:34,351 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:51:34,352 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:51:34,353 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:51:34,354 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:51:34,354 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:51:34,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:51:34,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:51:34,362 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:51:34,363 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:51:34,363 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:51:34,364 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:51:34,365 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:51:34,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:51:34,374 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e7698d-9d24-4872-b0f2-8842d04d4dd7/bin/utaipan-7li7fVZpFI/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-03 01:51:34,407 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:51:34,407 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:51:34,408 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:51:34,408 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:51:34,409 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:51:34,409 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:51:34,410 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:51:34,410 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:51:34,410 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:51:34,410 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:51:34,411 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:51:34,412 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:51:34,412 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:51:34,412 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:51:34,412 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:51:34,413 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:51:34,413 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:51:34,413 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:51:34,414 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:51:34,414 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 01:51:34,414 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 01:51:34,414 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:51:34,415 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 01:51:34,415 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:51:34,415 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:51:34,415 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:51:34,415 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:51:34,416 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-03 01:51:34,416 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 01:51:34,416 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:51:34,416 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:51:34,417 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:51:34,417 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:51:34,417 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:51:34,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:51:34,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:51:34,418 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:51:34,418 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:51:34,418 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:51:34,419 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:51:34,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:51:34,419 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:51:34,419 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:51:34,419 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_09e7698d-9d24-4872-b0f2-8842d04d4dd7/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e7698d-9d24-4872-b0f2-8842d04d4dd7/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9205365dcda04af07212d180b1c6367c5de79b6e0d2e09ec11b949fed58626f5 [2022-11-03 01:51:34,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:51:34,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:51:34,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:51:34,793 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:51:34,794 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:51:34,795 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e7698d-9d24-4872-b0f2-8842d04d4dd7/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i [2022-11-03 01:51:34,893 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e7698d-9d24-4872-b0f2-8842d04d4dd7/bin/utaipan-7li7fVZpFI/data/a7864100c/070369d140224144b165d3de9d6a4d18/FLAG183983a6e [2022-11-03 01:51:35,514 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:51:35,514 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e7698d-9d24-4872-b0f2-8842d04d4dd7/sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i [2022-11-03 01:51:35,535 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e7698d-9d24-4872-b0f2-8842d04d4dd7/bin/utaipan-7li7fVZpFI/data/a7864100c/070369d140224144b165d3de9d6a4d18/FLAG183983a6e [2022-11-03 01:51:35,795 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e7698d-9d24-4872-b0f2-8842d04d4dd7/bin/utaipan-7li7fVZpFI/data/a7864100c/070369d140224144b165d3de9d6a4d18 [2022-11-03 01:51:35,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:51:35,799 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:51:35,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:51:35,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:51:35,809 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:51:35,810 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:51:35" (1/1) ... [2022-11-03 01:51:35,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d02d38d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:51:35, skipping insertion in model container [2022-11-03 01:51:35,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:51:35" (1/1) ... [2022-11-03 01:51:35,827 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:51:35,882 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:51:36,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:51:36,342 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:51:36,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:51:36,450 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:51:36,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:51:36 WrapperNode [2022-11-03 01:51:36,451 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:51:36,452 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:51:36,452 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:51:36,452 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:51:36,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:51:36" (1/1) ... [2022-11-03 01:51:36,491 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:51:36" (1/1) ... [2022-11-03 01:51:36,518 INFO L138 Inliner]: procedures = 161, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2022-11-03 01:51:36,519 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:51:36,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:51:36,520 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:51:36,520 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:51:36,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:51:36" (1/1) ... [2022-11-03 01:51:36,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:51:36" (1/1) ... [2022-11-03 01:51:36,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:51:36" (1/1) ... [2022-11-03 01:51:36,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:51:36" (1/1) ... [2022-11-03 01:51:36,553 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:51:36" (1/1) ... [2022-11-03 01:51:36,563 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:51:36" (1/1) ... [2022-11-03 01:51:36,566 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:51:36" (1/1) ... [2022-11-03 01:51:36,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:51:36" (1/1) ... [2022-11-03 01:51:36,575 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:51:36,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:51:36,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:51:36,580 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:51:36,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:51:36" (1/1) ... [2022-11-03 01:51:36,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:51:36,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e7698d-9d24-4872-b0f2-8842d04d4dd7/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:51:36,618 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e7698d-9d24-4872-b0f2-8842d04d4dd7/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:51:36,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e7698d-9d24-4872-b0f2-8842d04d4dd7/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:51:36,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 01:51:36,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 01:51:36,672 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-03 01:51:36,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:51:36,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 01:51:36,673 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-03 01:51:36,673 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-03 01:51:36,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 01:51:36,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:51:36,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:51:36,675 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-03 01:51:36,882 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:51:36,885 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:51:37,075 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:51:37,082 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:51:37,083 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 01:51:37,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:51:37 BoogieIcfgContainer [2022-11-03 01:51:37,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:51:37,088 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:51:37,089 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:51:37,096 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:51:37,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:51:35" (1/3) ... [2022-11-03 01:51:37,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3755bb23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:51:37, skipping insertion in model container [2022-11-03 01:51:37,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:51:36" (2/3) ... [2022-11-03 01:51:37,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3755bb23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:51:37, skipping insertion in model container [2022-11-03 01:51:37,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:51:37" (3/3) ... [2022-11-03 01:51:37,101 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_23-idxsense_nr.i [2022-11-03 01:51:37,110 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 01:51:37,121 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:51:37,122 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-03 01:51:37,122 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 01:51:37,212 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-03 01:51:37,248 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 01:51:37,263 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 79 transitions, 163 flow [2022-11-03 01:51:37,267 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 79 transitions, 163 flow [2022-11-03 01:51:37,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 79 transitions, 163 flow [2022-11-03 01:51:37,340 INFO L130 PetriNetUnfolder]: 2/78 cut-off events. [2022-11-03 01:51:37,349 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-03 01:51:37,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2022-11-03 01:51:37,355 INFO L118 LiptonReduction]: Number of co-enabled transitions 960 [2022-11-03 01:51:39,921 INFO L133 LiptonReduction]: Checked pairs total: 1507 [2022-11-03 01:51:39,922 INFO L135 LiptonReduction]: Total number of compositions: 74 [2022-11-03 01:51:39,950 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 21 transitions, 47 flow [2022-11-03 01:51:39,975 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 62 states, 45 states have (on average 2.311111111111111) internal successors, (104), 61 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:51:39,998 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:51:40,006 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;@75c6d4dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:51:40,007 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-11-03 01:51:40,009 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 45 states have (on average 2.311111111111111) internal successors, (104), 61 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:51:40,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-03 01:51:40,015 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:51:40,015 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-03 01:51:40,016 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2022-11-03 01:51:40,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:51:40,024 INFO L85 PathProgramCache]: Analyzing trace with hash 9175, now seen corresponding path program 1 times [2022-11-03 01:51:40,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:51:40,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110120413] [2022-11-03 01:51:40,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:40,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:51:40,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:40,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:51:40,286 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:51:40,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110120413] [2022-11-03 01:51:40,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110120413] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:51:40,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:51:40,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-03 01:51:40,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65534261] [2022-11-03 01:51:40,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:51:40,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:51:40,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:51:40,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:51:40,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:51:40,333 INFO L87 Difference]: Start difference. First operand has 62 states, 45 states have (on average 2.311111111111111) internal successors, (104), 61 states have internal predecessors, (104), 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 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:51:40,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:51:40,405 INFO L93 Difference]: Finished difference Result 62 states and 104 transitions. [2022-11-03 01:51:40,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:51:40,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-11-03 01:51:40,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:51:40,417 INFO L225 Difference]: With dead ends: 62 [2022-11-03 01:51:40,417 INFO L226 Difference]: Without dead ends: 59 [2022-11-03 01:51:40,418 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 [2022-11-03 01:51:40,424 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:51:40,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 01:51:40,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-03 01:51:40,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-11-03 01:51:40,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 44 states have (on average 2.227272727272727) internal successors, (98), 58 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:51:40,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 98 transitions. [2022-11-03 01:51:40,476 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 98 transitions. Word has length 2 [2022-11-03 01:51:40,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:51:40,477 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 98 transitions. [2022-11-03 01:51:40,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:51:40,477 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 98 transitions. [2022-11-03 01:51:40,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-03 01:51:40,478 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:51:40,478 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-03 01:51:40,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:51:40,479 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2022-11-03 01:51:40,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:51:40,480 INFO L85 PathProgramCache]: Analyzing trace with hash 284703, now seen corresponding path program 1 times [2022-11-03 01:51:40,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:51:40,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428885575] [2022-11-03 01:51:40,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:40,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:51:40,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:40,595 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:51:40,595 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:51:40,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428885575] [2022-11-03 01:51:40,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428885575] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:51:40,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:51:40,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 01:51:40,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629898066] [2022-11-03 01:51:40,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:51:40,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:51:40,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:51:40,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:51:40,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:51:40,603 INFO L87 Difference]: Start difference. First operand 59 states and 98 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 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) [2022-11-03 01:51:40,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:51:40,656 INFO L93 Difference]: Finished difference Result 58 states and 97 transitions. [2022-11-03 01:51:40,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:51:40,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 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 [2022-11-03 01:51:40,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:51:40,660 INFO L225 Difference]: With dead ends: 58 [2022-11-03 01:51:40,660 INFO L226 Difference]: Without dead ends: 58 [2022-11-03 01:51:40,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:51:40,663 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 16 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 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 [2022-11-03 01:51:40,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 0 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 01:51:40,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-03 01:51:40,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-11-03 01:51:40,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 44 states have (on average 2.2045454545454546) internal successors, (97), 57 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:51:40,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 97 transitions. [2022-11-03 01:51:40,681 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 97 transitions. Word has length 3 [2022-11-03 01:51:40,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:51:40,682 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 97 transitions. [2022-11-03 01:51:40,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 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) [2022-11-03 01:51:40,682 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 97 transitions. [2022-11-03 01:51:40,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-03 01:51:40,683 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:51:40,683 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-03 01:51:40,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 01:51:40,683 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2022-11-03 01:51:40,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:51:40,684 INFO L85 PathProgramCache]: Analyzing trace with hash 273601657, now seen corresponding path program 1 times [2022-11-03 01:51:40,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:51:40,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391250004] [2022-11-03 01:51:40,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:40,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:51:40,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:40,804 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:51:40,805 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:51:40,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391250004] [2022-11-03 01:51:40,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391250004] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:51:40,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189495725] [2022-11-03 01:51:40,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:40,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:51:40,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e7698d-9d24-4872-b0f2-8842d04d4dd7/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:51:40,808 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e7698d-9d24-4872-b0f2-8842d04d4dd7/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:51:40,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e7698d-9d24-4872-b0f2-8842d04d4dd7/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 01:51:40,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:40,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 01:51:40,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:51:40,972 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:51:40,972 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:51:40,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:51:40,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189495725] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:51:40,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1020958858] [2022-11-03 01:51:40,997 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-03 01:51:41,000 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 01:51:41,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-11-03 01:51:41,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566764540] [2022-11-03 01:51:41,001 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 01:51:41,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 01:51:41,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:51:41,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 01:51:41,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-03 01:51:41,002 INFO L87 Difference]: Start difference. First operand 58 states and 97 transitions. Second operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:51:41,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:51:41,098 INFO L93 Difference]: Finished difference Result 61 states and 100 transitions. [2022-11-03 01:51:41,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 01:51:41,098 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 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 [2022-11-03 01:51:41,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:51:41,100 INFO L225 Difference]: With dead ends: 61 [2022-11-03 01:51:41,100 INFO L226 Difference]: Without dead ends: 61 [2022-11-03 01:51:41,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-03 01:51:41,101 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:51:41,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:51:41,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-03 01:51:41,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-11-03 01:51:41,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 47 states have (on average 2.127659574468085) internal successors, (100), 60 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:51:41,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 100 transitions. [2022-11-03 01:51:41,125 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 100 transitions. Word has length 5 [2022-11-03 01:51:41,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:51:41,125 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 100 transitions. [2022-11-03 01:51:41,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:51:41,126 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 100 transitions. [2022-11-03 01:51:41,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-03 01:51:41,126 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:51:41,127 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1] [2022-11-03 01:51:41,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e7698d-9d24-4872-b0f2-8842d04d4dd7/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 01:51:41,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e7698d-9d24-4872-b0f2-8842d04d4dd7/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:51:41,328 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2022-11-03 01:51:41,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:51:41,328 INFO L85 PathProgramCache]: Analyzing trace with hash -777460687, now seen corresponding path program 2 times [2022-11-03 01:51:41,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:51:41,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652304458] [2022-11-03 01:51:41,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:41,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:51:41,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:41,489 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:51:41,489 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:51:41,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652304458] [2022-11-03 01:51:41,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652304458] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:51:41,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948940179] [2022-11-03 01:51:41,489 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 01:51:41,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:51:41,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e7698d-9d24-4872-b0f2-8842d04d4dd7/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:51:41,492 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e7698d-9d24-4872-b0f2-8842d04d4dd7/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:51:41,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e7698d-9d24-4872-b0f2-8842d04d4dd7/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 01:51:41,587 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-03 01:51:41,587 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 01:51:41,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 01:51:41,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:51:41,630 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 12 [2022-11-03 01:51:41,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:41,693 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-03 01:51:41,714 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-03 01:51:41,715 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:51:41,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948940179] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:51:41,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 01:51:41,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2022-11-03 01:51:41,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823557067] [2022-11-03 01:51:41,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:51:41,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 01:51:41,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:51:41,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 01:51:41,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-03 01:51:41,717 INFO L87 Difference]: Start difference. First operand 61 states and 100 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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) [2022-11-03 01:51:41,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:51:41,774 INFO L93 Difference]: Finished difference Result 49 states and 76 transitions. [2022-11-03 01:51:41,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:51:41,774 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 8 [2022-11-03 01:51:41,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:51:41,775 INFO L225 Difference]: With dead ends: 49 [2022-11-03 01:51:41,775 INFO L226 Difference]: Without dead ends: 49 [2022-11-03 01:51:41,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-03 01:51:41,777 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 6 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:51:41,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 0 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 01:51:41,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-03 01:51:41,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-11-03 01:51:41,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 39 states have (on average 1.9487179487179487) internal successors, (76), 48 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:51:41,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 76 transitions. [2022-11-03 01:51:41,791 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 76 transitions. Word has length 8 [2022-11-03 01:51:41,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:51:41,791 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 76 transitions. [2022-11-03 01:51:41,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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) [2022-11-03 01:51:41,792 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 76 transitions. [2022-11-03 01:51:41,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-03 01:51:41,792 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:51:41,792 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1] [2022-11-03 01:51:41,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e7698d-9d24-4872-b0f2-8842d04d4dd7/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 01:51:42,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e7698d-9d24-4872-b0f2-8842d04d4dd7/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:51:42,009 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2022-11-03 01:51:42,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:51:42,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1668523046, now seen corresponding path program 1 times [2022-11-03 01:51:42,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:51:42,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340702195] [2022-11-03 01:51:42,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:42,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:51:42,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:42,126 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:51:42,127 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:51:42,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340702195] [2022-11-03 01:51:42,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340702195] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:51:42,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283252363] [2022-11-03 01:51:42,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:42,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:51:42,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e7698d-9d24-4872-b0f2-8842d04d4dd7/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:51:42,129 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e7698d-9d24-4872-b0f2-8842d04d4dd7/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:51:42,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e7698d-9d24-4872-b0f2-8842d04d4dd7/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 01:51:42,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:42,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 01:51:42,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:51:42,244 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:51:42,245 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:51:42,311 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:51:42,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [283252363] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:51:42,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [525767960] [2022-11-03 01:51:42,312 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-03 01:51:42,313 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 01:51:42,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-11-03 01:51:42,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913626620] [2022-11-03 01:51:42,314 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 01:51:42,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-03 01:51:42,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:51:42,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-03 01:51:42,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-11-03 01:51:42,316 INFO L87 Difference]: Start difference. First operand 49 states and 76 transitions. Second operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:51:42,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:51:42,382 INFO L93 Difference]: Finished difference Result 55 states and 82 transitions. [2022-11-03 01:51:42,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 01:51:42,385 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 states have internal predecessors, (17), 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 9 [2022-11-03 01:51:42,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:51:42,386 INFO L225 Difference]: With dead ends: 55 [2022-11-03 01:51:42,386 INFO L226 Difference]: Without dead ends: 55 [2022-11-03 01:51:42,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-11-03 01:51:42,387 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:51:42,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:51:42,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-11-03 01:51:42,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2022-11-03 01:51:42,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 45 states have (on average 1.8222222222222222) internal successors, (82), 54 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:51:42,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 82 transitions. [2022-11-03 01:51:42,393 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 82 transitions. Word has length 9 [2022-11-03 01:51:42,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:51:42,393 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 82 transitions. [2022-11-03 01:51:42,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:51:42,394 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 82 transitions. [2022-11-03 01:51:42,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-03 01:51:42,395 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:51:42,395 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1] [2022-11-03 01:51:42,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e7698d-9d24-4872-b0f2-8842d04d4dd7/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 01:51:42,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e7698d-9d24-4872-b0f2-8842d04d4dd7/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:51:42,617 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2022-11-03 01:51:42,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:51:42,618 INFO L85 PathProgramCache]: Analyzing trace with hash -2043778778, now seen corresponding path program 2 times [2022-11-03 01:51:42,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:51:42,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811609719] [2022-11-03 01:51:42,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:42,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:51:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:42,933 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-03 01:51:42,933 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:51:42,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811609719] [2022-11-03 01:51:42,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811609719] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:51:42,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:51:42,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:51:42,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931503405] [2022-11-03 01:51:42,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:51:42,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:51:42,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:51:42,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:51:42,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:51:42,937 INFO L87 Difference]: Start difference. First operand 55 states and 82 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:51:42,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:51:42,996 INFO L93 Difference]: Finished difference Result 41 states and 54 transitions. [2022-11-03 01:51:42,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:51:42,997 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 15 [2022-11-03 01:51:42,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:51:42,998 INFO L225 Difference]: With dead ends: 41 [2022-11-03 01:51:42,998 INFO L226 Difference]: Without dead ends: 41 [2022-11-03 01:51:42,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:51:42,999 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 13 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:51:43,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 0 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:51:43,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-03 01:51:43,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-11-03 01:51:43,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 35 states have (on average 1.542857142857143) internal successors, (54), 40 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:51:43,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 54 transitions. [2022-11-03 01:51:43,007 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 54 transitions. Word has length 15 [2022-11-03 01:51:43,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:51:43,007 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 54 transitions. [2022-11-03 01:51:43,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:51:43,008 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 54 transitions. [2022-11-03 01:51:43,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-03 01:51:43,009 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:51:43,009 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:51:43,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 01:51:43,009 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2022-11-03 01:51:43,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:51:43,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1271343267, now seen corresponding path program 1 times [2022-11-03 01:51:43,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:51:43,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662559388] [2022-11-03 01:51:43,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:43,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:51:43,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:43,134 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-03 01:51:43,134 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:51:43,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662559388] [2022-11-03 01:51:43,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662559388] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:51:43,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:51:43,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 01:51:43,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740441204] [2022-11-03 01:51:43,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:51:43,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:51:43,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:51:43,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:51:43,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:51:43,137 INFO L87 Difference]: Start difference. First operand 41 states and 54 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:51:43,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:51:43,172 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2022-11-03 01:51:43,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:51:43,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 17 [2022-11-03 01:51:43,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:51:43,175 INFO L225 Difference]: With dead ends: 32 [2022-11-03 01:51:43,175 INFO L226 Difference]: Without dead ends: 32 [2022-11-03 01:51:43,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:51:43,176 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 5 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:51:43,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 0 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 01:51:43,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-03 01:51:43,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-11-03 01:51:43,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 31 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:51:43,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2022-11-03 01:51:43,188 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 17 [2022-11-03 01:51:43,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:51:43,188 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2022-11-03 01:51:43,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:51:43,189 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2022-11-03 01:51:43,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-03 01:51:43,190 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:51:43,190 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:51:43,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 01:51:43,190 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2022-11-03 01:51:43,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:51:43,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1272164727, now seen corresponding path program 1 times [2022-11-03 01:51:43,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:51:43,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366240739] [2022-11-03 01:51:43,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:43,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:51:43,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:43,523 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-03 01:51:43,523 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:51:43,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366240739] [2022-11-03 01:51:43,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366240739] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:51:43,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:51:43,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 01:51:43,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687178221] [2022-11-03 01:51:43,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:51:43,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 01:51:43,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:51:43,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 01:51:43,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 01:51:43,526 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:51:43,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:51:43,564 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2022-11-03 01:51:43,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:51:43,565 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 17 [2022-11-03 01:51:43,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:51:43,565 INFO L225 Difference]: With dead ends: 28 [2022-11-03 01:51:43,565 INFO L226 Difference]: Without dead ends: 28 [2022-11-03 01:51:43,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 01:51:43,566 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:51:43,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 0 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 01:51:43,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-03 01:51:43,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-11-03 01:51:43,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 27 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:51:43,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2022-11-03 01:51:43,569 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 17 [2022-11-03 01:51:43,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:51:43,570 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2022-11-03 01:51:43,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:51:43,570 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2022-11-03 01:51:43,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 01:51:43,571 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:51:43,571 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:51:43,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 01:51:43,572 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2022-11-03 01:51:43,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:51:43,572 INFO L85 PathProgramCache]: Analyzing trace with hash -756935182, now seen corresponding path program 1 times [2022-11-03 01:51:43,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:51:43,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819184589] [2022-11-03 01:51:43,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:43,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:51:43,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:43,692 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-03 01:51:43,692 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:51:43,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819184589] [2022-11-03 01:51:43,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819184589] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:51:43,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:51:43,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 01:51:43,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080435796] [2022-11-03 01:51:43,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:51:43,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:51:43,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:51:43,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:51:43,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:51:43,695 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:51:43,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:51:43,726 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2022-11-03 01:51:43,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:51:43,727 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 18 [2022-11-03 01:51:43,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:51:43,727 INFO L225 Difference]: With dead ends: 27 [2022-11-03 01:51:43,727 INFO L226 Difference]: Without dead ends: 27 [2022-11-03 01:51:43,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:51:43,728 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 3 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:51:43,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 0 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 01:51:43,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-03 01:51:43,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-03 01:51:43,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 24 states have (on average 1.125) internal successors, (27), 26 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:51:43,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2022-11-03 01:51:43,731 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 18 [2022-11-03 01:51:43,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:51:43,732 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2022-11-03 01:51:43,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:51:43,732 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2022-11-03 01:51:43,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-03 01:51:43,733 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:51:43,733 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:51:43,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 01:51:43,734 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2022-11-03 01:51:43,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:51:43,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1990154451, now seen corresponding path program 1 times [2022-11-03 01:51:43,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:51:43,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635123643] [2022-11-03 01:51:43,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:43,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:51:43,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:44,190 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-03 01:51:44,190 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:51:44,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635123643] [2022-11-03 01:51:44,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635123643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:51:44,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:51:44,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:51:44,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594692819] [2022-11-03 01:51:44,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:51:44,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 01:51:44,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:51:44,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 01:51:44,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-11-03 01:51:44,193 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:51:44,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:51:44,248 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2022-11-03 01:51:44,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 01:51:44,249 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 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 19 [2022-11-03 01:51:44,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:51:44,250 INFO L225 Difference]: With dead ends: 26 [2022-11-03 01:51:44,250 INFO L226 Difference]: Without dead ends: 21 [2022-11-03 01:51:44,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2022-11-03 01:51:44,251 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:51:44,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 01:51:44,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-03 01:51:44,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-03 01:51:44,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 19 states have (on average 1.105263157894737) internal successors, (21), 20 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:51:44,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2022-11-03 01:51:44,255 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 19 [2022-11-03 01:51:44,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:51:44,255 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2022-11-03 01:51:44,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:51:44,256 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2022-11-03 01:51:44,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-03 01:51:44,256 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:51:44,256 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:51:44,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 01:51:44,257 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2022-11-03 01:51:44,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:51:44,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1515364694, now seen corresponding path program 1 times [2022-11-03 01:51:44,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:51:44,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526934556] [2022-11-03 01:51:44,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:44,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:51:44,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:44,637 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-03 01:51:44,637 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:51:44,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526934556] [2022-11-03 01:51:44,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526934556] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:51:44,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:51:44,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:51:44,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026727929] [2022-11-03 01:51:44,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:51:44,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 01:51:44,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:51:44,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 01:51:44,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-11-03 01:51:44,640 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:51:44,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:51:44,676 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2022-11-03 01:51:44,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 01:51:44,677 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 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 19 [2022-11-03 01:51:44,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:51:44,677 INFO L225 Difference]: With dead ends: 20 [2022-11-03 01:51:44,677 INFO L226 Difference]: Without dead ends: 20 [2022-11-03 01:51:44,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2022-11-03 01:51:44,678 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:51:44,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 0 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 01:51:44,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-03 01:51:44,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-03 01:51:44,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:51:44,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2022-11-03 01:51:44,680 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 19 [2022-11-03 01:51:44,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:51:44,680 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2022-11-03 01:51:44,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:51:44,681 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2022-11-03 01:51:44,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-03 01:51:44,681 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:51:44,681 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:51:44,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-03 01:51:44,682 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2022-11-03 01:51:44,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:51:44,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1515364718, now seen corresponding path program 1 times [2022-11-03 01:51:44,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:51:44,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969777739] [2022-11-03 01:51:44,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:44,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:51:44,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:44,809 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-03 01:51:44,809 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:51:44,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969777739] [2022-11-03 01:51:44,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969777739] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:51:44,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:51:44,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:51:44,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117983423] [2022-11-03 01:51:44,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:51:44,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 01:51:44,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:51:44,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 01:51:44,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 01:51:44,812 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:51:44,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:51:44,831 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-03 01:51:44,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 01:51:44,831 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 19 [2022-11-03 01:51:44,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:51:44,832 INFO L225 Difference]: With dead ends: 19 [2022-11-03 01:51:44,832 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 01:51:44,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 01:51:44,833 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 1 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:51:44,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 0 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 01:51:44,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 01:51:44,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 01:51:44,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:51:44,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 01:51:44,834 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2022-11-03 01:51:44,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:51:44,835 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 01:51:44,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:51:44,835 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 01:51:44,835 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 01:51:44,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 11 remaining) [2022-11-03 01:51:44,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 11 remaining) [2022-11-03 01:51:44,839 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 11 remaining) [2022-11-03 01:51:44,839 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 11 remaining) [2022-11-03 01:51:44,839 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 11 remaining) [2022-11-03 01:51:44,839 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 11 remaining) [2022-11-03 01:51:44,839 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 11 remaining) [2022-11-03 01:51:44,840 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 11 remaining) [2022-11-03 01:51:44,840 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 11 remaining) [2022-11-03 01:51:44,840 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 11 remaining) [2022-11-03 01:51:44,840 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 11 remaining) [2022-11-03 01:51:44,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-03 01:51:44,843 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:51:44,847 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-03 01:51:44,847 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 01:51:44,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 01:51:44 BasicIcfg [2022-11-03 01:51:44,850 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 01:51:44,850 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 01:51:44,850 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 01:51:44,851 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 01:51:44,851 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:51:37" (3/4) ... [2022-11-03 01:51:44,853 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 01:51:44,859 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-03 01:51:44,863 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-03 01:51:44,863 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-03 01:51:44,863 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-03 01:51:44,891 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e7698d-9d24-4872-b0f2-8842d04d4dd7/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 01:51:44,891 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 01:51:44,892 INFO L158 Benchmark]: Toolchain (without parser) took 9093.58ms. Allocated memory was 132.1MB in the beginning and 192.9MB in the end (delta: 60.8MB). Free memory was 100.0MB in the beginning and 100.6MB in the end (delta: -574.5kB). Peak memory consumption was 59.5MB. Max. memory is 16.1GB. [2022-11-03 01:51:44,892 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 90.2MB. Free memory was 46.8MB in the beginning and 46.7MB in the end (delta: 46.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 01:51:44,893 INFO L158 Benchmark]: CACSL2BoogieTranslator took 651.11ms. Allocated memory is still 132.1MB. Free memory was 100.0MB in the beginning and 100.4MB in the end (delta: -330.9kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-03 01:51:44,893 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.29ms. Allocated memory is still 132.1MB. Free memory was 100.4MB in the beginning and 98.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 01:51:44,893 INFO L158 Benchmark]: Boogie Preprocessor took 59.28ms. Allocated memory is still 132.1MB. Free memory was 98.4MB in the beginning and 96.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 01:51:44,894 INFO L158 Benchmark]: RCFGBuilder took 505.55ms. Allocated memory is still 132.1MB. Free memory was 96.7MB in the beginning and 83.6MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-03 01:51:44,894 INFO L158 Benchmark]: TraceAbstraction took 7761.70ms. Allocated memory was 132.1MB in the beginning and 192.9MB in the end (delta: 60.8MB). Free memory was 82.8MB in the beginning and 103.8MB in the end (delta: -20.9MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. [2022-11-03 01:51:44,895 INFO L158 Benchmark]: Witness Printer took 41.22ms. Allocated memory is still 192.9MB. Free memory was 103.8MB in the beginning and 100.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 01:51:44,896 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 90.2MB. Free memory was 46.8MB in the beginning and 46.7MB in the end (delta: 46.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 651.11ms. Allocated memory is still 132.1MB. Free memory was 100.0MB in the beginning and 100.4MB in the end (delta: -330.9kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.29ms. Allocated memory is still 132.1MB. Free memory was 100.4MB in the beginning and 98.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.28ms. Allocated memory is still 132.1MB. Free memory was 98.4MB in the beginning and 96.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 505.55ms. Allocated memory is still 132.1MB. Free memory was 96.7MB in the beginning and 83.6MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 7761.70ms. Allocated memory was 132.1MB in the beginning and 192.9MB in the end (delta: 60.8MB). Free memory was 82.8MB in the beginning and 103.8MB in the end (delta: -20.9MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. * Witness Printer took 41.22ms. Allocated memory is still 192.9MB. Free memory was 103.8MB in the beginning and 100.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.7s, 81 PlacesBefore, 24 PlacesAfterwards, 79 TransitionsBefore, 21 TransitionsAfterwards, 960 CoEnabledTransitionPairs, 5 FixpointIterations, 26 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 74 TotalNumberOfCompositions, 1507 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1041, positive: 961, positive conditional: 0, positive unconditional: 961, negative: 80, negative conditional: 0, negative unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 651, positive: 623, positive conditional: 0, positive unconditional: 623, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 651, positive: 589, positive conditional: 0, positive unconditional: 589, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 62, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 229, positive: 110, positive conditional: 0, positive unconditional: 110, negative: 119, negative conditional: 0, negative unconditional: 119, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1041, positive: 338, positive conditional: 0, positive unconditional: 338, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 651, unknown conditional: 0, unknown unconditional: 651] , Statistics on independence cache: Total cache size (in pairs): 47, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - 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: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 693]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 693]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 683]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 683]: 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 3 procedures, 95 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 7.6s, OverallIterations: 12, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 65 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 65 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 139 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 440 IncrementalHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 0 mSDtfsCounter, 440 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=62occurred in iteration=0, InterpolantAutomatonStates: 53, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 173 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 170 ConstructedInterpolants, 0 QuantifiedInterpolants, 1632 SizeOfPredicates, 3 NumberOfNonLiveVariables, 268 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 17 InterpolantComputations, 10 PerfectInterpolantSequences, 396/439 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-03 01:51:44,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e7698d-9d24-4872-b0f2-8842d04d4dd7/bin/utaipan-7li7fVZpFI/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