./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_0359ed7d-dd55-4141-8b6e-5a1167e2950a/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0359ed7d-dd55-4141-8b6e-5a1167e2950a/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0359ed7d-dd55-4141-8b6e-5a1167e2950a/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0359ed7d-dd55-4141-8b6e-5a1167e2950a/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0359ed7d-dd55-4141-8b6e-5a1167e2950a/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0359ed7d-dd55-4141-8b6e-5a1167e2950a/bin/utaipan-g80aRyZoba --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 d5772eac83993f999ed7a0d2c72e283c734e18136b4020af8f8e407255c20c04 --- 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-b5237d8 [2022-11-22 01:17:14,325 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:17:14,328 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:17:14,375 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:17:14,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:17:14,381 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:17:14,385 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:17:14,389 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:17:14,391 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:17:14,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:17:14,400 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:17:14,403 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:17:14,404 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:17:14,407 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:17:14,409 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:17:14,414 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:17:14,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:17:14,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:17:14,420 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:17:14,428 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:17:14,430 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:17:14,433 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:17:14,435 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:17:14,436 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:17:14,448 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:17:14,450 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:17:14,451 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:17:14,453 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:17:14,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:17:14,455 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:17:14,455 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:17:14,456 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:17:14,458 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:17:14,461 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:17:14,465 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:17:14,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:17:14,466 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:17:14,467 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:17:14,467 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:17:14,469 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:17:14,471 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:17:14,472 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0359ed7d-dd55-4141-8b6e-5a1167e2950a/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 01:17:14,523 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:17:14,523 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:17:14,524 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:17:14,524 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:17:14,525 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:17:14,525 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:17:14,526 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:17:14,526 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:17:14,526 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:17:14,526 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:17:14,528 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:17:14,528 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:17:14,528 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:17:14,528 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:17:14,529 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:17:14,529 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:17:14,529 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:17:14,529 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:17:14,530 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:17:14,531 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:17:14,531 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:17:14,531 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:17:14,531 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:17:14,531 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:17:14,532 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:17:14,532 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:17:14,533 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:17:14,533 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 01:17:14,533 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:17:14,533 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:17:14,534 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:17:14,534 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:17:14,534 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:17:14,535 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:17:14,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:17:14,536 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:17:14,537 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:17:14,537 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:17:14,537 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:17:14,537 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:17:14,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:17:14,538 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:17:14,538 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:17:14,538 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_0359ed7d-dd55-4141-8b6e-5a1167e2950a/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0359ed7d-dd55-4141-8b6e-5a1167e2950a/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5772eac83993f999ed7a0d2c72e283c734e18136b4020af8f8e407255c20c04 [2022-11-22 01:17:14,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:17:14,890 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:17:14,893 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:17:14,895 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:17:14,896 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:17:14,897 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0359ed7d-dd55-4141-8b6e-5a1167e2950a/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2022-11-22 01:17:18,333 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:17:18,638 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:17:18,639 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0359ed7d-dd55-4141-8b6e-5a1167e2950a/sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2022-11-22 01:17:18,653 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0359ed7d-dd55-4141-8b6e-5a1167e2950a/bin/utaipan-g80aRyZoba/data/322cd8156/94965f3936604139a6659e48b8e9e7c5/FLAG3013edf15 [2022-11-22 01:17:18,676 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0359ed7d-dd55-4141-8b6e-5a1167e2950a/bin/utaipan-g80aRyZoba/data/322cd8156/94965f3936604139a6659e48b8e9e7c5 [2022-11-22 01:17:18,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:17:18,681 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:17:18,683 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:17:18,683 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:17:18,688 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:17:18,689 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:17:18" (1/1) ... [2022-11-22 01:17:18,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35a64e1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:17:18, skipping insertion in model container [2022-11-22 01:17:18,690 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:17:18" (1/1) ... [2022-11-22 01:17:18,699 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:17:18,777 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:17:18,964 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0359ed7d-dd55-4141-8b6e-5a1167e2950a/sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i[1087,1100] [2022-11-22 01:17:19,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:17:19,408 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:17:19,425 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0359ed7d-dd55-4141-8b6e-5a1167e2950a/sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i[1087,1100] [2022-11-22 01:17:19,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:17:19,541 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:17:19,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:17:19 WrapperNode [2022-11-22 01:17:19,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:17:19,544 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:17:19,544 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:17:19,544 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:17:19,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:17:19" (1/1) ... [2022-11-22 01:17:19,598 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:17:19" (1/1) ... [2022-11-22 01:17:19,644 INFO L138 Inliner]: procedures = 271, calls = 45, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 107 [2022-11-22 01:17:19,644 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:17:19,669 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:17:19,669 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:17:19,669 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:17:19,687 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:17:19" (1/1) ... [2022-11-22 01:17:19,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:17:19" (1/1) ... [2022-11-22 01:17:19,710 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:17:19" (1/1) ... [2022-11-22 01:17:19,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:17:19" (1/1) ... [2022-11-22 01:17:19,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:17:19" (1/1) ... [2022-11-22 01:17:19,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:17:19" (1/1) ... [2022-11-22 01:17:19,761 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:17:19" (1/1) ... [2022-11-22 01:17:19,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:17:19" (1/1) ... [2022-11-22 01:17:19,768 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:17:19,769 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:17:19,769 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:17:19,769 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:17:19,770 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:17:19" (1/1) ... [2022-11-22 01:17:19,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:17:19,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0359ed7d-dd55-4141-8b6e-5a1167e2950a/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:17:19,820 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0359ed7d-dd55-4141-8b6e-5a1167e2950a/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:17:19,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0359ed7d-dd55-4141-8b6e-5a1167e2950a/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:17:19,865 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-11-22 01:17:19,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:17:19,865 INFO L130 BoogieDeclarations]: Found specification of procedure generate [2022-11-22 01:17:19,865 INFO L138 BoogieDeclarations]: Found implementation of procedure generate [2022-11-22 01:17:19,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:17:19,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:17:19,866 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-22 01:17:19,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:17:19,866 INFO L130 BoogieDeclarations]: Found specification of procedure dispose [2022-11-22 01:17:19,867 INFO L138 BoogieDeclarations]: Found implementation of procedure dispose [2022-11-22 01:17:19,867 INFO L130 BoogieDeclarations]: Found specification of procedure process [2022-11-22 01:17:19,867 INFO L138 BoogieDeclarations]: Found implementation of procedure process [2022-11-22 01:17:19,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:17:19,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:17:19,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:17:19,869 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 01:17:20,334 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:17:20,337 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:17:20,713 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:17:20,731 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:17:20,734 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-22 01:17:20,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:17:20 BoogieIcfgContainer [2022-11-22 01:17:20,739 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:17:20,743 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:17:20,745 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:17:20,749 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:17:20,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:17:18" (1/3) ... [2022-11-22 01:17:20,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ebe8f7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:17:20, skipping insertion in model container [2022-11-22 01:17:20,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:17:19" (2/3) ... [2022-11-22 01:17:20,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ebe8f7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:17:20, skipping insertion in model container [2022-11-22 01:17:20,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:17:20" (3/3) ... [2022-11-22 01:17:20,765 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_04-priv_multi_true.i [2022-11-22 01:17:20,777 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-22 01:17:20,792 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:17:20,793 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-22 01:17:20,793 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 01:17:20,900 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-22 01:17:20,941 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 01:17:20,961 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 175 places, 177 transitions, 369 flow [2022-11-22 01:17:20,965 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 175 places, 177 transitions, 369 flow [2022-11-22 01:17:20,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 175 places, 177 transitions, 369 flow [2022-11-22 01:17:21,117 INFO L130 PetriNetUnfolder]: 12/174 cut-off events. [2022-11-22 01:17:21,118 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-22 01:17:21,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 174 events. 12/174 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 378 event pairs, 0 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 142. Up to 2 conditions per place. [2022-11-22 01:17:21,141 INFO L119 LiptonReduction]: Number of co-enabled transitions 12642 [2022-11-22 01:17:28,250 INFO L134 LiptonReduction]: Checked pairs total: 24645 [2022-11-22 01:17:28,251 INFO L136 LiptonReduction]: Total number of compositions: 154 [2022-11-22 01:17:28,264 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 60 places, 57 transitions, 129 flow [2022-11-22 01:17:29,035 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 11531 states, 11469 states have (on average 4.277705118144564) internal successors, (49061), 11530 states have internal predecessors, (49061), 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) [2022-11-22 01:17:29,058 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:17:29,065 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;@61061cd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:17:29,066 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2022-11-22 01:17:29,100 INFO L276 IsEmpty]: Start isEmpty. Operand has 11531 states, 11469 states have (on average 4.277705118144564) internal successors, (49061), 11530 states have internal predecessors, (49061), 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) [2022-11-22 01:17:29,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 01:17:29,108 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:17:29,109 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:17:29,110 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting generateErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-22 01:17:29,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:17:29,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1170559489, now seen corresponding path program 1 times [2022-11-22 01:17:29,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:17:29,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545232229] [2022-11-22 01:17:29,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:17:29,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:17:29,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:17:29,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:17:29,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:17:29,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545232229] [2022-11-22 01:17:29,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545232229] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:17:29,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:17:29,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:17:29,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401427982] [2022-11-22 01:17:29,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:17:29,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:17:29,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:17:29,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:17:29,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:17:29,726 INFO L87 Difference]: Start difference. First operand has 11531 states, 11469 states have (on average 4.277705118144564) internal successors, (49061), 11530 states have internal predecessors, (49061), 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 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-22 01:17:30,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:17:30,442 INFO L93 Difference]: Finished difference Result 14162 states and 59162 transitions. [2022-11-22 01:17:30,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:17:30,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-11-22 01:17:30,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:17:30,711 INFO L225 Difference]: With dead ends: 14162 [2022-11-22 01:17:30,712 INFO L226 Difference]: Without dead ends: 14162 [2022-11-22 01:17:30,713 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 [2022-11-22 01:17:30,791 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 41 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:17:30,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 17 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:17:30,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14162 states. [2022-11-22 01:17:31,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14162 to 14162. [2022-11-22 01:17:31,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14162 states, 14162 states have (on average 4.17751729981641) internal successors, (59162), 14161 states have internal predecessors, (59162), 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) [2022-11-22 01:17:31,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14162 states to 14162 states and 59162 transitions. [2022-11-22 01:17:31,908 INFO L78 Accepts]: Start accepts. Automaton has 14162 states and 59162 transitions. Word has length 7 [2022-11-22 01:17:31,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:17:31,909 INFO L495 AbstractCegarLoop]: Abstraction has 14162 states and 59162 transitions. [2022-11-22 01:17:31,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-22 01:17:31,911 INFO L276 IsEmpty]: Start isEmpty. Operand 14162 states and 59162 transitions. [2022-11-22 01:17:31,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 01:17:31,912 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:17:31,913 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:17:31,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:17:31,916 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-22 01:17:31,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:17:31,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1550193320, now seen corresponding path program 1 times [2022-11-22 01:17:31,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:17:31,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533189997] [2022-11-22 01:17:31,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:17:31,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:17:31,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:17:32,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:17:32,168 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:17:32,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533189997] [2022-11-22 01:17:32,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533189997] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:17:32,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:17:32,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 01:17:32,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306710934] [2022-11-22 01:17:32,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:17:32,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:17:32,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:17:32,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:17:32,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:17:32,173 INFO L87 Difference]: Start difference. First operand 14162 states and 59162 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2022-11-22 01:17:32,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:17:32,728 INFO L93 Difference]: Finished difference Result 21974 states and 92100 transitions. [2022-11-22 01:17:32,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:17:32,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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 8 [2022-11-22 01:17:32,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:17:33,085 INFO L225 Difference]: With dead ends: 21974 [2022-11-22 01:17:33,086 INFO L226 Difference]: Without dead ends: 21974 [2022-11-22 01:17:33,087 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 [2022-11-22 01:17:33,089 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 35 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:17:33,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 12 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:17:33,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21974 states. [2022-11-22 01:17:34,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21974 to 19122. [2022-11-22 01:17:34,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19122 states, 19122 states have (on average 4.288149775128125) internal successors, (81998), 19121 states have internal predecessors, (81998), 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) [2022-11-22 01:17:34,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19122 states to 19122 states and 81998 transitions. [2022-11-22 01:17:34,521 INFO L78 Accepts]: Start accepts. Automaton has 19122 states and 81998 transitions. Word has length 8 [2022-11-22 01:17:34,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:17:34,523 INFO L495 AbstractCegarLoop]: Abstraction has 19122 states and 81998 transitions. [2022-11-22 01:17:34,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2022-11-22 01:17:34,523 INFO L276 IsEmpty]: Start isEmpty. Operand 19122 states and 81998 transitions. [2022-11-22 01:17:34,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 01:17:34,524 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:17:34,525 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:17:34,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:17:34,525 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-22 01:17:34,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:17:34,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1550193283, now seen corresponding path program 1 times [2022-11-22 01:17:34,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:17:34,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699154598] [2022-11-22 01:17:34,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:17:34,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:17:34,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:17:34,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:17:34,853 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:17:34,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699154598] [2022-11-22 01:17:34,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699154598] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:17:34,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:17:34,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 01:17:34,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615169673] [2022-11-22 01:17:34,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:17:34,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:17:34,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:17:34,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:17:34,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:17:34,856 INFO L87 Difference]: Start difference. First operand 19122 states and 81998 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2022-11-22 01:17:35,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:17:35,414 INFO L93 Difference]: Finished difference Result 24144 states and 100192 transitions. [2022-11-22 01:17:35,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:17:35,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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 8 [2022-11-22 01:17:35,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:17:35,639 INFO L225 Difference]: With dead ends: 24144 [2022-11-22 01:17:35,639 INFO L226 Difference]: Without dead ends: 24144 [2022-11-22 01:17:35,640 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 [2022-11-22 01:17:35,641 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 33 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:17:35,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 12 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:17:35,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24144 states. [2022-11-22 01:17:36,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24144 to 21416. [2022-11-22 01:17:36,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21416 states, 21416 states have (on average 4.230575270825551) internal successors, (90602), 21415 states have internal predecessors, (90602), 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) [2022-11-22 01:17:37,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21416 states to 21416 states and 90602 transitions. [2022-11-22 01:17:37,214 INFO L78 Accepts]: Start accepts. Automaton has 21416 states and 90602 transitions. Word has length 8 [2022-11-22 01:17:37,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:17:37,214 INFO L495 AbstractCegarLoop]: Abstraction has 21416 states and 90602 transitions. [2022-11-22 01:17:37,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2022-11-22 01:17:37,215 INFO L276 IsEmpty]: Start isEmpty. Operand 21416 states and 90602 transitions. [2022-11-22 01:17:37,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 01:17:37,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:17:37,217 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:17:37,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:17:37,218 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-22 01:17:37,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:17:37,218 INFO L85 PathProgramCache]: Analyzing trace with hash -253252322, now seen corresponding path program 1 times [2022-11-22 01:17:37,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:17:37,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984968829] [2022-11-22 01:17:37,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:17:37,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:17:37,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:17:37,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:17:37,452 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:17:37,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984968829] [2022-11-22 01:17:37,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984968829] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:17:37,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:17:37,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:17:37,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000584360] [2022-11-22 01:17:37,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:17:37,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:17:37,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:17:37,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:17:37,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:17:37,462 INFO L87 Difference]: Start difference. First operand 21416 states and 90602 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-11-22 01:17:38,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:17:38,051 INFO L93 Difference]: Finished difference Result 22470 states and 94582 transitions. [2022-11-22 01:17:38,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:17:38,053 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2022-11-22 01:17:38,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:17:38,255 INFO L225 Difference]: With dead ends: 22470 [2022-11-22 01:17:38,255 INFO L226 Difference]: Without dead ends: 22470 [2022-11-22 01:17:38,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:17:38,257 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 71 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:17:38,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 29 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:17:38,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22470 states. [2022-11-22 01:17:39,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22470 to 21974. [2022-11-22 01:17:39,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21974 states, 21974 states have (on average 4.227996723400382) internal successors, (92906), 21973 states have internal predecessors, (92906), 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) [2022-11-22 01:17:39,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21974 states to 21974 states and 92906 transitions. [2022-11-22 01:17:39,394 INFO L78 Accepts]: Start accepts. Automaton has 21974 states and 92906 transitions. Word has length 11 [2022-11-22 01:17:39,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:17:39,394 INFO L495 AbstractCegarLoop]: Abstraction has 21974 states and 92906 transitions. [2022-11-22 01:17:39,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-11-22 01:17:39,395 INFO L276 IsEmpty]: Start isEmpty. Operand 21974 states and 92906 transitions. [2022-11-22 01:17:39,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 01:17:39,397 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:17:39,398 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-11-22 01:17:39,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:17:39,398 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting generateErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-22 01:17:39,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:17:39,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1551454048, now seen corresponding path program 1 times [2022-11-22 01:17:39,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:17:39,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860119800] [2022-11-22 01:17:39,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:17:39,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:17:39,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:17:39,494 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:17:39,494 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:17:39,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860119800] [2022-11-22 01:17:39,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860119800] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:17:39,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:17:39,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:17:39,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531837147] [2022-11-22 01:17:39,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:17:39,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:17:39,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:17:39,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:17:39,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:17:39,497 INFO L87 Difference]: Start difference. First operand 21974 states and 92906 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-11-22 01:17:40,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:17:40,346 INFO L93 Difference]: Finished difference Result 19988 states and 84524 transitions. [2022-11-22 01:17:40,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:17:40,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2022-11-22 01:17:40,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:17:40,479 INFO L225 Difference]: With dead ends: 19988 [2022-11-22 01:17:40,479 INFO L226 Difference]: Without dead ends: 19988 [2022-11-22 01:17:40,480 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 [2022-11-22 01:17:40,481 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 42 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:17:40,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 16 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:17:40,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19988 states. [2022-11-22 01:17:41,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19988 to 19988. [2022-11-22 01:17:41,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19988 states, 19988 states have (on average 4.2287372423454075) internal successors, (84524), 19987 states have internal predecessors, (84524), 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) [2022-11-22 01:17:41,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19988 states to 19988 states and 84524 transitions. [2022-11-22 01:17:41,505 INFO L78 Accepts]: Start accepts. Automaton has 19988 states and 84524 transitions. Word has length 11 [2022-11-22 01:17:41,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:17:41,505 INFO L495 AbstractCegarLoop]: Abstraction has 19988 states and 84524 transitions. [2022-11-22 01:17:41,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-11-22 01:17:41,506 INFO L276 IsEmpty]: Start isEmpty. Operand 19988 states and 84524 transitions. [2022-11-22 01:17:41,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 01:17:41,508 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:17:41,508 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-11-22 01:17:41,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:17:41,509 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting generateErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-22 01:17:41,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:17:41,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1551454047, now seen corresponding path program 1 times [2022-11-22 01:17:41,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:17:41,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040772177] [2022-11-22 01:17:41,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:17:41,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:17:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:17:41,629 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:17:41,630 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:17:41,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040772177] [2022-11-22 01:17:41,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040772177] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:17:41,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:17:41,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:17:41,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195485972] [2022-11-22 01:17:41,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:17:41,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:17:41,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:17:41,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:17:41,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:17:41,633 INFO L87 Difference]: Start difference. First operand 19988 states and 84524 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-11-22 01:17:41,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:17:41,916 INFO L93 Difference]: Finished difference Result 18002 states and 76142 transitions. [2022-11-22 01:17:41,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:17:41,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2022-11-22 01:17:41,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:17:42,387 INFO L225 Difference]: With dead ends: 18002 [2022-11-22 01:17:42,403 INFO L226 Difference]: Without dead ends: 18002 [2022-11-22 01:17:42,404 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 [2022-11-22 01:17:42,405 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 42 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:17:42,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 16 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:17:42,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18002 states. [2022-11-22 01:17:43,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18002 to 14342. [2022-11-22 01:17:43,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14342 states, 14342 states have (on average 4.2556128852321855) internal successors, (61034), 14341 states have internal predecessors, (61034), 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) [2022-11-22 01:17:43,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14342 states to 14342 states and 61034 transitions. [2022-11-22 01:17:43,127 INFO L78 Accepts]: Start accepts. Automaton has 14342 states and 61034 transitions. Word has length 11 [2022-11-22 01:17:43,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:17:43,128 INFO L495 AbstractCegarLoop]: Abstraction has 14342 states and 61034 transitions. [2022-11-22 01:17:43,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-11-22 01:17:43,128 INFO L276 IsEmpty]: Start isEmpty. Operand 14342 states and 61034 transitions. [2022-11-22 01:17:43,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 01:17:43,130 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:17:43,130 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:17:43,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:17:43,130 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-22 01:17:43,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:17:43,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1970576433, now seen corresponding path program 1 times [2022-11-22 01:17:43,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:17:43,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441283270] [2022-11-22 01:17:43,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:17:43,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:17:43,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:17:43,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:17:43,330 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:17:43,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441283270] [2022-11-22 01:17:43,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441283270] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:17:43,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:17:43,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:17:43,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922609193] [2022-11-22 01:17:43,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:17:43,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:17:43,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:17:43,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:17:43,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:17:43,334 INFO L87 Difference]: Start difference. First operand 14342 states and 61034 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-11-22 01:17:43,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:17:43,920 INFO L93 Difference]: Finished difference Result 20356 states and 85184 transitions. [2022-11-22 01:17:43,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:17:43,921 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2022-11-22 01:17:43,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:17:44,031 INFO L225 Difference]: With dead ends: 20356 [2022-11-22 01:17:44,032 INFO L226 Difference]: Without dead ends: 20356 [2022-11-22 01:17:44,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:17:44,033 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 136 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:17:44,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 36 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:17:44,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20356 states. [2022-11-22 01:17:44,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20356 to 17318. [2022-11-22 01:17:44,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17318 states, 17318 states have (on average 4.2911421642221965) internal successors, (74314), 17317 states have internal predecessors, (74314), 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) [2022-11-22 01:17:44,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17318 states to 17318 states and 74314 transitions. [2022-11-22 01:17:44,957 INFO L78 Accepts]: Start accepts. Automaton has 17318 states and 74314 transitions. Word has length 11 [2022-11-22 01:17:44,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:17:44,958 INFO L495 AbstractCegarLoop]: Abstraction has 17318 states and 74314 transitions. [2022-11-22 01:17:44,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-11-22 01:17:44,958 INFO L276 IsEmpty]: Start isEmpty. Operand 17318 states and 74314 transitions. [2022-11-22 01:17:44,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 01:17:44,959 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:17:44,959 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:17:44,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 01:17:44,960 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-22 01:17:44,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:17:44,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1970576420, now seen corresponding path program 1 times [2022-11-22 01:17:44,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:17:44,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637648288] [2022-11-22 01:17:44,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:17:44,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:17:44,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:17:45,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:17:45,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:17:45,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637648288] [2022-11-22 01:17:45,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637648288] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:17:45,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:17:45,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:17:45,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277734841] [2022-11-22 01:17:45,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:17:45,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:17:45,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:17:45,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:17:45,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:17:45,094 INFO L87 Difference]: Start difference. First operand 17318 states and 74314 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-11-22 01:17:45,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:17:45,629 INFO L93 Difference]: Finished difference Result 22650 states and 95400 transitions. [2022-11-22 01:17:45,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:17:45,630 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2022-11-22 01:17:45,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:17:45,737 INFO L225 Difference]: With dead ends: 22650 [2022-11-22 01:17:45,737 INFO L226 Difference]: Without dead ends: 22650 [2022-11-22 01:17:45,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:17:45,738 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 157 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:17:45,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 35 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:17:45,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22650 states. [2022-11-22 01:17:46,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22650 to 18744. [2022-11-22 01:17:46,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18744 states, 18744 states have (on average 4.278809218950064) internal successors, (80202), 18743 states have internal predecessors, (80202), 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) [2022-11-22 01:17:46,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18744 states to 18744 states and 80202 transitions. [2022-11-22 01:17:46,711 INFO L78 Accepts]: Start accepts. Automaton has 18744 states and 80202 transitions. Word has length 11 [2022-11-22 01:17:46,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:17:46,712 INFO L495 AbstractCegarLoop]: Abstraction has 18744 states and 80202 transitions. [2022-11-22 01:17:46,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-11-22 01:17:46,712 INFO L276 IsEmpty]: Start isEmpty. Operand 18744 states and 80202 transitions. [2022-11-22 01:17:46,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-22 01:17:46,715 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:17:46,715 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:17:46,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 01:17:46,716 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-22 01:17:46,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:17:46,716 INFO L85 PathProgramCache]: Analyzing trace with hash -618997898, now seen corresponding path program 1 times [2022-11-22 01:17:46,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:17:46,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292811981] [2022-11-22 01:17:46,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:17:46,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:17:46,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:17:46,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:17:46,860 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:17:46,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292811981] [2022-11-22 01:17:46,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292811981] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:17:46,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:17:46,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:17:46,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205361240] [2022-11-22 01:17:46,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:17:46,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:17:46,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:17:46,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:17:46,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:17:46,864 INFO L87 Difference]: Start difference. First operand 18744 states and 80202 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2022-11-22 01:17:47,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:17:47,686 INFO L93 Difference]: Finished difference Result 29616 states and 127158 transitions. [2022-11-22 01:17:47,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:17:47,687 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2022-11-22 01:17:47,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:17:47,886 INFO L225 Difference]: With dead ends: 29616 [2022-11-22 01:17:47,886 INFO L226 Difference]: Without dead ends: 29616 [2022-11-22 01:17:47,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:17:47,887 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 67 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:17:47,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 38 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:17:47,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29616 states. [2022-11-22 01:17:48,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29616 to 29616. [2022-11-22 01:17:48,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29616 states, 29616 states have (on average 4.293557536466775) internal successors, (127158), 29615 states have internal predecessors, (127158), 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) [2022-11-22 01:17:49,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29616 states to 29616 states and 127158 transitions. [2022-11-22 01:17:49,064 INFO L78 Accepts]: Start accepts. Automaton has 29616 states and 127158 transitions. Word has length 13 [2022-11-22 01:17:49,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:17:49,064 INFO L495 AbstractCegarLoop]: Abstraction has 29616 states and 127158 transitions. [2022-11-22 01:17:49,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2022-11-22 01:17:49,065 INFO L276 IsEmpty]: Start isEmpty. Operand 29616 states and 127158 transitions. [2022-11-22 01:17:49,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-22 01:17:49,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:17:49,067 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:17:49,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 01:17:49,067 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-22 01:17:49,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:17:49,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1614053035, now seen corresponding path program 1 times [2022-11-22 01:17:49,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:17:49,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331678318] [2022-11-22 01:17:49,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:17:49,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:17:49,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:17:49,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:17:49,226 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:17:49,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331678318] [2022-11-22 01:17:49,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331678318] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:17:49,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:17:49,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:17:49,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949870597] [2022-11-22 01:17:49,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:17:49,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:17:49,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:17:49,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:17:49,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:17:49,228 INFO L87 Difference]: Start difference. First operand 29616 states and 127158 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2022-11-22 01:17:49,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:17:49,905 INFO L93 Difference]: Finished difference Result 54037 states and 222385 transitions. [2022-11-22 01:17:49,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:17:49,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2022-11-22 01:17:49,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:17:50,210 INFO L225 Difference]: With dead ends: 54037 [2022-11-22 01:17:50,210 INFO L226 Difference]: Without dead ends: 54037 [2022-11-22 01:17:50,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:17:50,212 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 29 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:17:50,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 17 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:17:50,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54037 states. [2022-11-22 01:17:51,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54037 to 43950. [2022-11-22 01:17:51,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43950 states, 43950 states have (on average 4.171126279863481) internal successors, (183321), 43949 states have internal predecessors, (183321), 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) [2022-11-22 01:17:52,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43950 states to 43950 states and 183321 transitions. [2022-11-22 01:17:52,523 INFO L78 Accepts]: Start accepts. Automaton has 43950 states and 183321 transitions. Word has length 14 [2022-11-22 01:17:52,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:17:52,524 INFO L495 AbstractCegarLoop]: Abstraction has 43950 states and 183321 transitions. [2022-11-22 01:17:52,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2022-11-22 01:17:52,524 INFO L276 IsEmpty]: Start isEmpty. Operand 43950 states and 183321 transitions. [2022-11-22 01:17:52,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-22 01:17:52,557 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:17:52,557 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:17:52,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 01:17:52,558 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-22 01:17:52,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:17:52,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1993960022, now seen corresponding path program 1 times [2022-11-22 01:17:52,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:17:52,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082830196] [2022-11-22 01:17:52,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:17:52,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:17:52,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:17:52,776 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 01:17:52,776 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:17:52,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082830196] [2022-11-22 01:17:52,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082830196] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:17:52,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:17:52,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:17:52,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384952442] [2022-11-22 01:17:52,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:17:52,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:17:52,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:17:52,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:17:52,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:17:52,779 INFO L87 Difference]: Start difference. First operand 43950 states and 183321 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 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) [2022-11-22 01:17:53,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:17:53,553 INFO L93 Difference]: Finished difference Result 57564 states and 240298 transitions. [2022-11-22 01:17:53,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-22 01:17:53,556 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 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 19 [2022-11-22 01:17:53,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:17:53,816 INFO L225 Difference]: With dead ends: 57564 [2022-11-22 01:17:53,816 INFO L226 Difference]: Without dead ends: 57564 [2022-11-22 01:17:53,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:17:53,817 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 227 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:17:53,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 65 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:17:53,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57564 states. [2022-11-22 01:17:55,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57564 to 40436. [2022-11-22 01:17:55,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40436 states, 40436 states have (on average 4.150089029577604) internal successors, (167813), 40435 states have internal predecessors, (167813), 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) [2022-11-22 01:17:55,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40436 states to 40436 states and 167813 transitions. [2022-11-22 01:17:55,365 INFO L78 Accepts]: Start accepts. Automaton has 40436 states and 167813 transitions. Word has length 19 [2022-11-22 01:17:55,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:17:55,365 INFO L495 AbstractCegarLoop]: Abstraction has 40436 states and 167813 transitions. [2022-11-22 01:17:55,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 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) [2022-11-22 01:17:55,366 INFO L276 IsEmpty]: Start isEmpty. Operand 40436 states and 167813 transitions. [2022-11-22 01:17:55,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-22 01:17:55,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:17:55,374 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:17:55,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 01:17:55,374 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-22 01:17:55,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:17:55,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1993959985, now seen corresponding path program 1 times [2022-11-22 01:17:55,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:17:55,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18942675] [2022-11-22 01:17:55,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:17:55,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:17:55,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:17:55,874 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:17:55,874 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:17:55,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18942675] [2022-11-22 01:17:55,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18942675] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:17:55,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:17:55,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:17:55,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993051676] [2022-11-22 01:17:55,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:17:55,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:17:55,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:17:55,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:17:55,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:17:55,876 INFO L87 Difference]: Start difference. First operand 40436 states and 167813 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-11-22 01:17:56,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:17:56,511 INFO L93 Difference]: Finished difference Result 45108 states and 184961 transitions. [2022-11-22 01:17:56,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:17:56,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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 [2022-11-22 01:17:56,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:17:56,740 INFO L225 Difference]: With dead ends: 45108 [2022-11-22 01:17:56,740 INFO L226 Difference]: Without dead ends: 45108 [2022-11-22 01:17:56,740 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 [2022-11-22 01:17:56,741 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 36 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:17:56,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 12 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:17:56,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45108 states. [2022-11-22 01:17:58,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45108 to 40096. [2022-11-22 01:17:58,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40096 states, 40096 states have (on average 4.124576017557861) internal successors, (165379), 40095 states have internal predecessors, (165379), 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) [2022-11-22 01:17:58,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40096 states to 40096 states and 165379 transitions. [2022-11-22 01:17:58,368 INFO L78 Accepts]: Start accepts. Automaton has 40096 states and 165379 transitions. Word has length 19 [2022-11-22 01:17:58,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:17:58,368 INFO L495 AbstractCegarLoop]: Abstraction has 40096 states and 165379 transitions. [2022-11-22 01:17:58,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-11-22 01:17:58,368 INFO L276 IsEmpty]: Start isEmpty. Operand 40096 states and 165379 transitions. [2022-11-22 01:17:58,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-22 01:17:58,376 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:17:58,376 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:17:58,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-22 01:17:58,376 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-22 01:17:58,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:17:58,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1345170369, now seen corresponding path program 1 times [2022-11-22 01:17:58,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:17:58,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440700800] [2022-11-22 01:17:58,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:17:58,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:17:58,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:17:58,490 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:17:58,490 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:17:58,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440700800] [2022-11-22 01:17:58,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440700800] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:17:58,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:17:58,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:17:58,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766980371] [2022-11-22 01:17:58,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:17:58,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:17:58,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:17:58,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:17:58,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:17:58,493 INFO L87 Difference]: Start difference. First operand 40096 states and 165379 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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) [2022-11-22 01:17:58,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:17:58,913 INFO L93 Difference]: Finished difference Result 37978 states and 155588 transitions. [2022-11-22 01:17:58,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:17:58,914 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 [2022-11-22 01:17:58,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:17:59,063 INFO L225 Difference]: With dead ends: 37978 [2022-11-22 01:17:59,063 INFO L226 Difference]: Without dead ends: 37978 [2022-11-22 01:17:59,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:17:59,065 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 69 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:17:59,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 36 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:17:59,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37978 states. [2022-11-22 01:18:00,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37978 to 37978. [2022-11-22 01:18:00,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37978 states, 37978 states have (on average 4.096792880088472) internal successors, (155588), 37977 states have internal predecessors, (155588), 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) [2022-11-22 01:18:00,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37978 states to 37978 states and 155588 transitions. [2022-11-22 01:18:00,507 INFO L78 Accepts]: Start accepts. Automaton has 37978 states and 155588 transitions. Word has length 19 [2022-11-22 01:18:00,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:18:00,508 INFO L495 AbstractCegarLoop]: Abstraction has 37978 states and 155588 transitions. [2022-11-22 01:18:00,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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) [2022-11-22 01:18:00,508 INFO L276 IsEmpty]: Start isEmpty. Operand 37978 states and 155588 transitions. [2022-11-22 01:18:00,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-22 01:18:00,516 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:18:00,516 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:18:00,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-22 01:18:00,516 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-22 01:18:00,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:18:00,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1345170118, now seen corresponding path program 1 times [2022-11-22 01:18:00,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:18:00,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408122637] [2022-11-22 01:18:00,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:18:00,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:18:00,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:18:00,661 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:18:00,662 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:18:00,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408122637] [2022-11-22 01:18:00,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408122637] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:18:00,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [116536319] [2022-11-22 01:18:00,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:18:00,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:18:00,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0359ed7d-dd55-4141-8b6e-5a1167e2950a/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:18:00,671 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0359ed7d-dd55-4141-8b6e-5a1167e2950a/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:18:00,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0359ed7d-dd55-4141-8b6e-5a1167e2950a/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:18:00,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:18:00,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:18:00,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:18:00,924 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:18:00,924 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:18:00,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [116536319] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:18:00,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:18:00,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-22 01:18:00,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189607292] [2022-11-22 01:18:00,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:18:00,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:18:00,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:18:00,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:18:00,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:18:00,926 INFO L87 Difference]: Start difference. First operand 37978 states and 155588 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 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) [2022-11-22 01:18:02,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:18:02,304 INFO L93 Difference]: Finished difference Result 35860 states and 145797 transitions. [2022-11-22 01:18:02,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:18:02,305 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 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 [2022-11-22 01:18:02,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:18:02,475 INFO L225 Difference]: With dead ends: 35860 [2022-11-22 01:18:02,475 INFO L226 Difference]: Without dead ends: 35860 [2022-11-22 01:18:02,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:18:02,476 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 135 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:18:02,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 78 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:18:02,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35860 states. [2022-11-22 01:18:02,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35860 to 23876. [2022-11-22 01:18:03,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23876 states, 23876 states have (on average 4.030616518679846) internal successors, (96235), 23875 states have internal predecessors, (96235), 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) [2022-11-22 01:18:03,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23876 states to 23876 states and 96235 transitions. [2022-11-22 01:18:03,108 INFO L78 Accepts]: Start accepts. Automaton has 23876 states and 96235 transitions. Word has length 19 [2022-11-22 01:18:03,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:18:03,108 INFO L495 AbstractCegarLoop]: Abstraction has 23876 states and 96235 transitions. [2022-11-22 01:18:03,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 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) [2022-11-22 01:18:03,109 INFO L276 IsEmpty]: Start isEmpty. Operand 23876 states and 96235 transitions. [2022-11-22 01:18:03,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-22 01:18:03,113 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:18:03,113 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:18:03,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0359ed7d-dd55-4141-8b6e-5a1167e2950a/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-22 01:18:03,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0359ed7d-dd55-4141-8b6e-5a1167e2950a/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-22 01:18:03,314 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-22 01:18:03,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:18:03,315 INFO L85 PathProgramCache]: Analyzing trace with hash -64077341, now seen corresponding path program 1 times [2022-11-22 01:18:03,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:18:03,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187267439] [2022-11-22 01:18:03,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:18:03,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:18:03,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:18:03,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:18:03,408 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:18:03,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187267439] [2022-11-22 01:18:03,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187267439] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:18:03,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:18:03,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:18:03,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123708659] [2022-11-22 01:18:03,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:18:03,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:18:03,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:18:03,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:18:03,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:18:03,410 INFO L87 Difference]: Start difference. First operand 23876 states and 96235 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 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) [2022-11-22 01:18:04,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:18:04,279 INFO L93 Difference]: Finished difference Result 28724 states and 115122 transitions. [2022-11-22 01:18:04,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:18:04,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 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) Word has length 20 [2022-11-22 01:18:04,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:18:04,439 INFO L225 Difference]: With dead ends: 28724 [2022-11-22 01:18:04,440 INFO L226 Difference]: Without dead ends: 28724 [2022-11-22 01:18:04,440 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 [2022-11-22 01:18:04,441 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 24 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:18:04,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 8 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 01:18:04,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28724 states. [2022-11-22 01:18:05,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28724 to 28724. [2022-11-22 01:18:05,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28724 states, 28724 states have (on average 4.007867984960312) internal successors, (115122), 28723 states have internal predecessors, (115122), 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) [2022-11-22 01:18:05,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28724 states to 28724 states and 115122 transitions. [2022-11-22 01:18:05,309 INFO L78 Accepts]: Start accepts. Automaton has 28724 states and 115122 transitions. Word has length 20 [2022-11-22 01:18:05,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:18:05,309 INFO L495 AbstractCegarLoop]: Abstraction has 28724 states and 115122 transitions. [2022-11-22 01:18:05,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 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) [2022-11-22 01:18:05,310 INFO L276 IsEmpty]: Start isEmpty. Operand 28724 states and 115122 transitions. [2022-11-22 01:18:05,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-22 01:18:05,315 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:18:05,315 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:18:05,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-22 01:18:05,316 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-22 01:18:05,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:18:05,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1936182846, now seen corresponding path program 1 times [2022-11-22 01:18:05,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:18:05,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807906447] [2022-11-22 01:18:05,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:18:05,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:18:05,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:18:05,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:18:05,513 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:18:05,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807906447] [2022-11-22 01:18:05,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807906447] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:18:05,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:18:05,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:18:05,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447884038] [2022-11-22 01:18:05,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:18:05,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:18:05,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:18:05,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:18:05,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:18:05,516 INFO L87 Difference]: Start difference. First operand 28724 states and 115122 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 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) [2022-11-22 01:18:06,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:18:06,869 INFO L93 Difference]: Finished difference Result 45092 states and 181917 transitions. [2022-11-22 01:18:06,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-22 01:18:06,869 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 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) Word has length 21 [2022-11-22 01:18:06,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:18:07,052 INFO L225 Difference]: With dead ends: 45092 [2022-11-22 01:18:07,052 INFO L226 Difference]: Without dead ends: 45092 [2022-11-22 01:18:07,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:18:07,053 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 224 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:18:07,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 51 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 01:18:07,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45092 states. [2022-11-22 01:18:08,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45092 to 31720. [2022-11-22 01:18:08,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31720 states, 31720 states have (on average 4.042749054224464) internal successors, (128236), 31719 states have internal predecessors, (128236), 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) [2022-11-22 01:18:08,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31720 states to 31720 states and 128236 transitions. [2022-11-22 01:18:08,411 INFO L78 Accepts]: Start accepts. Automaton has 31720 states and 128236 transitions. Word has length 21 [2022-11-22 01:18:08,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:18:08,411 INFO L495 AbstractCegarLoop]: Abstraction has 31720 states and 128236 transitions. [2022-11-22 01:18:08,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 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) [2022-11-22 01:18:08,412 INFO L276 IsEmpty]: Start isEmpty. Operand 31720 states and 128236 transitions. [2022-11-22 01:18:08,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-22 01:18:08,418 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:18:08,418 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:18:08,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-22 01:18:08,418 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-22 01:18:08,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:18:08,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1936182859, now seen corresponding path program 1 times [2022-11-22 01:18:08,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:18:08,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343948403] [2022-11-22 01:18:08,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:18:08,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:18:08,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:18:08,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:18:08,580 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:18:08,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343948403] [2022-11-22 01:18:08,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343948403] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:18:08,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:18:08,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:18:08,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673351645] [2022-11-22 01:18:08,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:18:08,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:18:08,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:18:08,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:18:08,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:18:08,582 INFO L87 Difference]: Start difference. First operand 31720 states and 128236 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 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) [2022-11-22 01:18:09,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:18:09,449 INFO L93 Difference]: Finished difference Result 45185 states and 181247 transitions. [2022-11-22 01:18:09,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-22 01:18:09,450 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 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) Word has length 21 [2022-11-22 01:18:09,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:18:09,624 INFO L225 Difference]: With dead ends: 45185 [2022-11-22 01:18:09,624 INFO L226 Difference]: Without dead ends: 45185 [2022-11-22 01:18:09,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-22 01:18:09,625 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 201 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:18:09,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 52 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 01:18:09,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45185 states. [2022-11-22 01:18:10,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45185 to 31230. [2022-11-22 01:18:10,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31230 states, 31230 states have (on average 4.0116874799871916) internal successors, (125285), 31229 states have internal predecessors, (125285), 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) [2022-11-22 01:18:10,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31230 states to 31230 states and 125285 transitions. [2022-11-22 01:18:10,930 INFO L78 Accepts]: Start accepts. Automaton has 31230 states and 125285 transitions. Word has length 21 [2022-11-22 01:18:10,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:18:10,930 INFO L495 AbstractCegarLoop]: Abstraction has 31230 states and 125285 transitions. [2022-11-22 01:18:10,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 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) [2022-11-22 01:18:10,930 INFO L276 IsEmpty]: Start isEmpty. Operand 31230 states and 125285 transitions. [2022-11-22 01:18:10,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-22 01:18:10,934 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:18:10,934 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:18:10,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-22 01:18:10,935 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting processErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-22 01:18:10,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:18:10,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1154366120, now seen corresponding path program 1 times [2022-11-22 01:18:10,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:18:10,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616186014] [2022-11-22 01:18:10,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:18:10,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:18:10,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:18:11,063 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:18:11,064 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:18:11,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616186014] [2022-11-22 01:18:11,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616186014] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:18:11,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [129484873] [2022-11-22 01:18:11,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:18:11,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:18:11,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0359ed7d-dd55-4141-8b6e-5a1167e2950a/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:18:11,066 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0359ed7d-dd55-4141-8b6e-5a1167e2950a/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:18:11,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0359ed7d-dd55-4141-8b6e-5a1167e2950a/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:18:11,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:18:11,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:18:11,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:18:11,265 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:18:11,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:18:11,340 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:18:11,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [129484873] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:18:11,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1853149948] [2022-11-22 01:18:11,349 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) [2022-11-22 01:18:11,355 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:18:11,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2022-11-22 01:18:11,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241796179] [2022-11-22 01:18:11,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:18:11,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 01:18:11,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:18:11,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 01:18:11,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-22 01:18:11,359 INFO L87 Difference]: Start difference. First operand 31230 states and 125285 transitions. Second operand has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 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) [2022-11-22 01:18:12,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:18:12,908 INFO L93 Difference]: Finished difference Result 66040 states and 263533 transitions. [2022-11-22 01:18:12,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-22 01:18:12,909 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 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 21 [2022-11-22 01:18:12,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:18:13,294 INFO L225 Difference]: With dead ends: 66040 [2022-11-22 01:18:13,294 INFO L226 Difference]: Without dead ends: 66040 [2022-11-22 01:18:13,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2022-11-22 01:18:13,295 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 415 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:18:13,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 46 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 01:18:13,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66040 states. [2022-11-22 01:18:14,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66040 to 47227. [2022-11-22 01:18:14,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47227 states, 47227 states have (on average 3.995934528977068) internal successors, (188716), 47226 states have internal predecessors, (188716), 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) [2022-11-22 01:18:15,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47227 states to 47227 states and 188716 transitions. [2022-11-22 01:18:15,133 INFO L78 Accepts]: Start accepts. Automaton has 47227 states and 188716 transitions. Word has length 21 [2022-11-22 01:18:15,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:18:15,134 INFO L495 AbstractCegarLoop]: Abstraction has 47227 states and 188716 transitions. [2022-11-22 01:18:15,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 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) [2022-11-22 01:18:15,134 INFO L276 IsEmpty]: Start isEmpty. Operand 47227 states and 188716 transitions. [2022-11-22 01:18:15,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-22 01:18:15,138 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:18:15,138 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:18:15,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0359ed7d-dd55-4141-8b6e-5a1167e2950a/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:18:15,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0359ed7d-dd55-4141-8b6e-5a1167e2950a/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-22 01:18:15,339 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting processErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-22 01:18:15,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:18:15,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1154366206, now seen corresponding path program 1 times [2022-11-22 01:18:15,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:18:15,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328386369] [2022-11-22 01:18:15,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:18:15,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:18:15,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:18:15,487 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:18:15,487 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:18:15,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328386369] [2022-11-22 01:18:15,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328386369] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:18:15,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083594626] [2022-11-22 01:18:15,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:18:15,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:18:15,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0359ed7d-dd55-4141-8b6e-5a1167e2950a/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:18:15,489 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0359ed7d-dd55-4141-8b6e-5a1167e2950a/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:18:15,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0359ed7d-dd55-4141-8b6e-5a1167e2950a/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 01:18:15,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:18:15,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:18:15,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:18:15,708 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:18:15,708 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:18:15,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083594626] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:18:15,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:18:15,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2022-11-22 01:18:15,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405000969] [2022-11-22 01:18:15,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:18:15,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:18:15,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:18:15,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:18:15,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:18:15,711 INFO L87 Difference]: Start difference. First operand 47227 states and 188716 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 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) [2022-11-22 01:18:16,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:18:16,308 INFO L93 Difference]: Finished difference Result 52563 states and 209341 transitions. [2022-11-22 01:18:16,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:18:16,309 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 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) Word has length 21 [2022-11-22 01:18:16,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:18:16,522 INFO L225 Difference]: With dead ends: 52563 [2022-11-22 01:18:16,523 INFO L226 Difference]: Without dead ends: 52563 [2022-11-22 01:18:16,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:18:16,523 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 136 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:18:16,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 31 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]