./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_15_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca2d9d-36ec-48da-8268-3dd135c9144f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca2d9d-36ec-48da-8268-3dd135c9144f/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca2d9d-36ec-48da-8268-3dd135c9144f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca2d9d-36ec-48da-8268-3dd135c9144f/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_15_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca2d9d-36ec-48da-8268-3dd135c9144f/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca2d9d-36ec-48da-8268-3dd135c9144f/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e4e4ddc8e215ef1d6c828f8558b94004913e5a166e06ab0989f3c3e5f35bc2fd --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 09:19:15,620 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:19:15,621 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:19:15,644 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:19:15,645 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:19:15,645 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:19:15,646 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:19:15,647 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:19:15,648 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:19:15,648 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:19:15,656 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:19:15,658 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:19:15,658 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:19:15,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:19:15,660 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:19:15,661 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:19:15,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:19:15,662 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:19:15,663 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:19:15,664 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:19:15,665 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:19:15,666 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:19:15,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:19:15,667 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:19:15,676 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:19:15,677 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:19:15,677 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:19:15,678 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:19:15,679 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:19:15,680 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:19:15,680 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:19:15,680 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:19:15,681 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:19:15,681 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:19:15,682 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:19:15,682 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:19:15,682 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:19:15,682 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:19:15,683 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:19:15,683 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:19:15,683 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:19:15,684 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca2d9d-36ec-48da-8268-3dd135c9144f/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 09:19:15,698 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:19:15,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:19:15,698 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:19:15,698 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:19:15,699 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:19:15,699 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:19:15,699 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:19:15,699 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:19:15,699 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:19:15,699 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:19:15,699 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:19:15,700 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:19:15,700 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:19:15,700 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:19:15,700 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:19:15,700 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:19:15,700 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:19:15,700 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:19:15,701 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:19:15,701 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 09:19:15,701 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:19:15,701 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:19:15,701 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:19:15,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:19:15,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:19:15,701 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 09:19:15,701 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:19:15,701 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:19:15,702 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:19:15,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:19:15,702 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:19:15,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:19:15,702 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:19:15,702 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:19:15,702 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:19:15,702 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:19:15,703 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:19:15,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:19:15,703 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:19:15,703 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:19:15,703 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_a6ca2d9d-36ec-48da-8268-3dd135c9144f/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca2d9d-36ec-48da-8268-3dd135c9144f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4e4ddc8e215ef1d6c828f8558b94004913e5a166e06ab0989f3c3e5f35bc2fd [2022-12-14 09:19:15,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:19:15,880 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:19:15,882 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:19:15,884 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:19:15,884 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:19:15,885 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca2d9d-36ec-48da-8268-3dd135c9144f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_15_good.i [2022-12-14 09:19:18,471 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:19:18,737 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:19:18,738 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca2d9d-36ec-48da-8268-3dd135c9144f/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_15_good.i [2022-12-14 09:19:18,753 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca2d9d-36ec-48da-8268-3dd135c9144f/bin/utaipan-gh47qXpMRh/data/c09f5930c/32c41aeaa63a4ebbbb6b43733300a87b/FLAG0aa6862eb [2022-12-14 09:19:19,028 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca2d9d-36ec-48da-8268-3dd135c9144f/bin/utaipan-gh47qXpMRh/data/c09f5930c/32c41aeaa63a4ebbbb6b43733300a87b [2022-12-14 09:19:19,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:19:19,032 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:19:19,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:19:19,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:19:19,038 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:19:19,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:19:19" (1/1) ... [2022-12-14 09:19:19,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2164e963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:19:19, skipping insertion in model container [2022-12-14 09:19:19,040 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:19:19" (1/1) ... [2022-12-14 09:19:19,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:19:19,091 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:19:19,308 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 09:19:19,594 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:19:19,598 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 09:19:19,599 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 09:19:19,601 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 09:19:19,601 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 09:19:19,623 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 09:19:19,624 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:19:19,631 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:19:19,645 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 09:19:19,676 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:19:19,678 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 09:19:19,678 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 09:19:19,680 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 09:19:19,680 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 09:19:19,687 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 09:19:19,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:19:19,757 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:19:19,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:19:19 WrapperNode [2022-12-14 09:19:19,757 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:19:19,758 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:19:19,758 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:19:19,758 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:19:19,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:19:19" (1/1) ... [2022-12-14 09:19:19,779 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:19:19" (1/1) ... [2022-12-14 09:19:19,803 INFO L138 Inliner]: procedures = 503, calls = 81, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 145 [2022-12-14 09:19:19,803 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:19:19,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:19:19,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:19:19,804 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:19:19,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:19:19" (1/1) ... [2022-12-14 09:19:19,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:19:19" (1/1) ... [2022-12-14 09:19:19,812 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:19:19" (1/1) ... [2022-12-14 09:19:19,813 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:19:19" (1/1) ... [2022-12-14 09:19:19,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:19:19" (1/1) ... [2022-12-14 09:19:19,821 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:19:19" (1/1) ... [2022-12-14 09:19:19,822 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:19:19" (1/1) ... [2022-12-14 09:19:19,823 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:19:19" (1/1) ... [2022-12-14 09:19:19,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:19:19,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:19:19,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:19:19,826 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:19:19,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:19:19" (1/1) ... [2022-12-14 09:19:19,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:19:19,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca2d9d-36ec-48da-8268-3dd135c9144f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:19:19,850 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca2d9d-36ec-48da-8268-3dd135c9144f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:19:19,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca2d9d-36ec-48da-8268-3dd135c9144f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:19:19,883 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-12-14 09:19:19,884 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-12-14 09:19:19,884 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 09:19:19,884 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 09:19:19,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:19:19,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:19:19,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:19:19,884 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 09:19:19,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:19:19,982 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:19:19,984 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:19:20,163 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:19:20,199 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:19:20,199 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 09:19:20,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:19:20 BoogieIcfgContainer [2022-12-14 09:19:20,202 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:19:20,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:19:20,204 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:19:20,207 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:19:20,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:19:19" (1/3) ... [2022-12-14 09:19:20,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b9f032 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:19:20, skipping insertion in model container [2022-12-14 09:19:20,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:19:19" (2/3) ... [2022-12-14 09:19:20,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b9f032 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:19:20, skipping insertion in model container [2022-12-14 09:19:20,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:19:20" (3/3) ... [2022-12-14 09:19:20,209 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_min_sub_15_good.i [2022-12-14 09:19:20,225 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:19:20,225 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-14 09:19:20,265 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:19:20,271 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;@3bbd76dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:19:20,271 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-14 09:19:20,275 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 38 states have (on average 1.6578947368421053) internal successors, (63), 60 states have internal predecessors, (63), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 10 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 09:19:20,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 09:19:20,282 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:19:20,282 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:19:20,283 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 09:19:20,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:19:20,288 INFO L85 PathProgramCache]: Analyzing trace with hash 464018189, now seen corresponding path program 1 times [2022-12-14 09:19:20,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:19:20,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041376805] [2022-12-14 09:19:20,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:19:20,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:19:20,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:19:20,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:19:20,490 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:19:20,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041376805] [2022-12-14 09:19:20,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041376805] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:19:20,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:19:20,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:19:20,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218812136] [2022-12-14 09:19:20,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:19:20,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:19:20,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:19:20,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:19:20,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:19:20,520 INFO L87 Difference]: Start difference. First operand has 65 states, 38 states have (on average 1.6578947368421053) internal successors, (63), 60 states have internal predecessors, (63), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 10 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 09:19:20,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:19:20,582 INFO L93 Difference]: Finished difference Result 167 states and 244 transitions. [2022-12-14 09:19:20,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:19:20,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-14 09:19:20,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:19:20,591 INFO L225 Difference]: With dead ends: 167 [2022-12-14 09:19:20,591 INFO L226 Difference]: Without dead ends: 100 [2022-12-14 09:19:20,594 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 [2022-12-14 09:19:20,596 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 47 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:19:20,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 174 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:19:20,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-12-14 09:19:20,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 62. [2022-12-14 09:19:20,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 39 states have (on average 1.6153846153846154) internal successors, (63), 58 states have internal predecessors, (63), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 09:19:20,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 89 transitions. [2022-12-14 09:19:20,629 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 89 transitions. Word has length 11 [2022-12-14 09:19:20,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:19:20,629 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 89 transitions. [2022-12-14 09:19:20,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 09:19:20,629 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 89 transitions. [2022-12-14 09:19:20,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 09:19:20,630 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:19:20,630 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:19:20,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:19:20,631 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 09:19:20,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:19:20,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1083189638, now seen corresponding path program 1 times [2022-12-14 09:19:20,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:19:20,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315558812] [2022-12-14 09:19:20,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:19:20,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:19:20,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:19:20,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:19:20,671 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:19:20,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315558812] [2022-12-14 09:19:20,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315558812] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:19:20,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:19:20,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:19:20,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316684985] [2022-12-14 09:19:20,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:19:20,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:19:20,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:19:20,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:19:20,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:19:20,674 INFO L87 Difference]: Start difference. First operand 62 states and 89 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 09:19:20,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:19:20,697 INFO L93 Difference]: Finished difference Result 105 states and 149 transitions. [2022-12-14 09:19:20,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:19:20,698 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-12-14 09:19:20,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:19:20,698 INFO L225 Difference]: With dead ends: 105 [2022-12-14 09:19:20,698 INFO L226 Difference]: Without dead ends: 51 [2022-12-14 09:19:20,699 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 [2022-12-14 09:19:20,700 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 1 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:19:20,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 124 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:19:20,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-12-14 09:19:20,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-12-14 09:19:20,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 32 states have (on average 1.53125) internal successors, (49), 47 states have internal predecessors, (49), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 09:19:20,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 71 transitions. [2022-12-14 09:19:20,705 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 71 transitions. Word has length 12 [2022-12-14 09:19:20,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:19:20,706 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 71 transitions. [2022-12-14 09:19:20,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 09:19:20,706 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 71 transitions. [2022-12-14 09:19:20,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 09:19:20,706 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:19:20,707 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:19:20,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:19:20,707 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 09:19:20,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:19:20,707 INFO L85 PathProgramCache]: Analyzing trace with hash 166722795, now seen corresponding path program 1 times [2022-12-14 09:19:20,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:19:20,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720254685] [2022-12-14 09:19:20,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:19:20,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:19:20,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:19:20,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:19:20,743 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:19:20,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720254685] [2022-12-14 09:19:20,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720254685] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:19:20,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:19:20,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:19:20,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079376941] [2022-12-14 09:19:20,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:19:20,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:19:20,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:19:20,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:19:20,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:19:20,745 INFO L87 Difference]: Start difference. First operand 51 states and 71 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 09:19:20,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:19:20,768 INFO L93 Difference]: Finished difference Result 92 states and 127 transitions. [2022-12-14 09:19:20,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:19:20,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-12-14 09:19:20,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:19:20,769 INFO L225 Difference]: With dead ends: 92 [2022-12-14 09:19:20,769 INFO L226 Difference]: Without dead ends: 51 [2022-12-14 09:19:20,769 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 [2022-12-14 09:19:20,770 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 2 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:19:20,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 117 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:19:20,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-12-14 09:19:20,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-12-14 09:19:20,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 32 states have (on average 1.5) internal successors, (48), 46 states have internal predecessors, (48), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 09:19:20,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2022-12-14 09:19:20,775 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 70 transitions. Word has length 15 [2022-12-14 09:19:20,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:19:20,776 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 70 transitions. [2022-12-14 09:19:20,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 09:19:20,776 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2022-12-14 09:19:20,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 09:19:20,776 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:19:20,776 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:19:20,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 09:19:20,777 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 09:19:20,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:19:20,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1578079744, now seen corresponding path program 1 times [2022-12-14 09:19:20,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:19:20,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506674595] [2022-12-14 09:19:20,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:19:20,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:19:20,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:19:20,808 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:19:20,809 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:19:20,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506674595] [2022-12-14 09:19:20,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506674595] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:19:20,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:19:20,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:19:20,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129971207] [2022-12-14 09:19:20,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:19:20,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:19:20,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:19:20,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:19:20,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:19:20,811 INFO L87 Difference]: Start difference. First operand 51 states and 70 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:19:20,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:19:20,832 INFO L93 Difference]: Finished difference Result 92 states and 126 transitions. [2022-12-14 09:19:20,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:19:20,832 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2022-12-14 09:19:20,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:19:20,833 INFO L225 Difference]: With dead ends: 92 [2022-12-14 09:19:20,833 INFO L226 Difference]: Without dead ends: 50 [2022-12-14 09:19:20,833 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 [2022-12-14 09:19:20,834 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 0 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:19:20,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:19:20,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-12-14 09:19:20,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-12-14 09:19:20,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 32 states have (on average 1.46875) internal successors, (47), 45 states have internal predecessors, (47), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 7 states have call predecessors, (10), 10 states have call successors, (10) [2022-12-14 09:19:20,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 67 transitions. [2022-12-14 09:19:20,839 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 67 transitions. Word has length 17 [2022-12-14 09:19:20,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:19:20,840 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 67 transitions. [2022-12-14 09:19:20,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:19:20,840 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 67 transitions. [2022-12-14 09:19:20,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 09:19:20,840 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:19:20,840 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:19:20,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 09:19:20,841 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 09:19:20,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:19:20,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1579369701, now seen corresponding path program 1 times [2022-12-14 09:19:20,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:19:20,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680356387] [2022-12-14 09:19:20,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:19:20,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:19:20,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:19:20,879 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:19:20,879 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:19:20,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680356387] [2022-12-14 09:19:20,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680356387] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:19:20,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:19:20,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:19:20,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001497088] [2022-12-14 09:19:20,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:19:20,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:19:20,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:19:20,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:19:20,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:19:20,881 INFO L87 Difference]: Start difference. First operand 50 states and 67 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 09:19:20,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:19:20,909 INFO L93 Difference]: Finished difference Result 108 states and 144 transitions. [2022-12-14 09:19:20,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:19:20,909 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2022-12-14 09:19:20,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:19:20,910 INFO L225 Difference]: With dead ends: 108 [2022-12-14 09:19:20,910 INFO L226 Difference]: Without dead ends: 77 [2022-12-14 09:19:20,910 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 [2022-12-14 09:19:20,911 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 26 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:19:20,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 116 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:19:20,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-12-14 09:19:20,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 53. [2022-12-14 09:19:20,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 35 states have (on average 1.457142857142857) internal successors, (51), 48 states have internal predecessors, (51), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 7 states have call predecessors, (10), 10 states have call successors, (10) [2022-12-14 09:19:20,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 71 transitions. [2022-12-14 09:19:20,916 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 71 transitions. Word has length 19 [2022-12-14 09:19:20,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:19:20,916 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 71 transitions. [2022-12-14 09:19:20,917 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 09:19:20,917 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 71 transitions. [2022-12-14 09:19:20,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 09:19:20,917 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:19:20,917 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:19:20,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 09:19:20,917 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 09:19:20,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:19:20,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1660501428, now seen corresponding path program 1 times [2022-12-14 09:19:20,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:19:20,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763087156] [2022-12-14 09:19:20,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:19:20,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:19:20,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:19:20,943 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:19:20,943 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:19:20,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763087156] [2022-12-14 09:19:20,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763087156] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:19:20,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:19:20,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:19:20,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376708355] [2022-12-14 09:19:20,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:19:20,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:19:20,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:19:20,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:19:20,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:19:20,946 INFO L87 Difference]: Start difference. First operand 53 states and 71 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 09:19:20,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:19:20,965 INFO L93 Difference]: Finished difference Result 82 states and 109 transitions. [2022-12-14 09:19:20,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:19:20,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2022-12-14 09:19:20,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:19:20,966 INFO L225 Difference]: With dead ends: 82 [2022-12-14 09:19:20,966 INFO L226 Difference]: Without dead ends: 43 [2022-12-14 09:19:20,967 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 [2022-12-14 09:19:20,968 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 1 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:19:20,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 93 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:19:20,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-12-14 09:19:20,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-12-14 09:19:20,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 38 states have internal predecessors, (39), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 09:19:20,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 55 transitions. [2022-12-14 09:19:20,975 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 55 transitions. Word has length 20 [2022-12-14 09:19:20,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:19:20,975 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 55 transitions. [2022-12-14 09:19:20,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 09:19:20,975 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 55 transitions. [2022-12-14 09:19:20,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 09:19:20,976 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:19:20,976 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:19:20,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 09:19:20,977 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 09:19:20,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:19:20,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1447792107, now seen corresponding path program 1 times [2022-12-14 09:19:20,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:19:20,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897891994] [2022-12-14 09:19:20,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:19:20,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:19:21,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:19:21,035 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:19:21,036 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:19:21,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897891994] [2022-12-14 09:19:21,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897891994] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:19:21,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:19:21,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:19:21,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812299809] [2022-12-14 09:19:21,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:19:21,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:19:21,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:19:21,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:19:21,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:19:21,038 INFO L87 Difference]: Start difference. First operand 43 states and 55 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 09:19:21,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:19:21,056 INFO L93 Difference]: Finished difference Result 69 states and 87 transitions. [2022-12-14 09:19:21,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:19:21,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2022-12-14 09:19:21,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:19:21,058 INFO L225 Difference]: With dead ends: 69 [2022-12-14 09:19:21,058 INFO L226 Difference]: Without dead ends: 41 [2022-12-14 09:19:21,059 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 [2022-12-14 09:19:21,059 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 2 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:19:21,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 81 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:19:21,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-12-14 09:19:21,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-12-14 09:19:21,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 35 states have internal predecessors, (36), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-12-14 09:19:21,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2022-12-14 09:19:21,064 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 23 [2022-12-14 09:19:21,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:19:21,064 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2022-12-14 09:19:21,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 09:19:21,065 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2022-12-14 09:19:21,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-14 09:19:21,066 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:19:21,066 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:19:21,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 09:19:21,066 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 09:19:21,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:19:21,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1737008645, now seen corresponding path program 1 times [2022-12-14 09:19:21,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:19:21,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560142073] [2022-12-14 09:19:21,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:19:21,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:19:21,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:19:21,114 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 09:19:21,115 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:19:21,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560142073] [2022-12-14 09:19:21,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560142073] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:19:21,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:19:21,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:19:21,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113715282] [2022-12-14 09:19:21,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:19:21,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:19:21,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:19:21,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:19:21,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:19:21,117 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 09:19:21,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:19:21,134 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2022-12-14 09:19:21,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:19:21,134 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), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2022-12-14 09:19:21,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:19:21,135 INFO L225 Difference]: With dead ends: 41 [2022-12-14 09:19:21,135 INFO L226 Difference]: Without dead ends: 40 [2022-12-14 09:19:21,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:19:21,136 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 17 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:19:21,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 59 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:19:21,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-12-14 09:19:21,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-12-14 09:19:21,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 28 states have (on average 1.25) internal successors, (35), 34 states have internal predecessors, (35), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-12-14 09:19:21,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 49 transitions. [2022-12-14 09:19:21,140 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 49 transitions. Word has length 26 [2022-12-14 09:19:21,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:19:21,141 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 49 transitions. [2022-12-14 09:19:21,141 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), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 09:19:21,141 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 49 transitions. [2022-12-14 09:19:21,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 09:19:21,142 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:19:21,142 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:19:21,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 09:19:21,142 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 09:19:21,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:19:21,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1987306709, now seen corresponding path program 1 times [2022-12-14 09:19:21,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:19:21,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309378447] [2022-12-14 09:19:21,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:19:21,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:19:21,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:19:21,188 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 09:19:21,188 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:19:21,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309378447] [2022-12-14 09:19:21,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309378447] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:19:21,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:19:21,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:19:21,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779517914] [2022-12-14 09:19:21,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:19:21,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:19:21,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:19:21,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:19:21,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:19:21,190 INFO L87 Difference]: Start difference. First operand 40 states and 49 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 09:19:21,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:19:21,208 INFO L93 Difference]: Finished difference Result 58 states and 73 transitions. [2022-12-14 09:19:21,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:19:21,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2022-12-14 09:19:21,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:19:21,209 INFO L225 Difference]: With dead ends: 58 [2022-12-14 09:19:21,209 INFO L226 Difference]: Without dead ends: 57 [2022-12-14 09:19:21,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:19:21,210 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 14 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:19:21,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 82 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:19:21,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-12-14 09:19:21,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 44. [2022-12-14 09:19:21,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 32 states have (on average 1.25) internal successors, (40), 37 states have internal predecessors, (40), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-12-14 09:19:21,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 54 transitions. [2022-12-14 09:19:21,214 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 54 transitions. Word has length 27 [2022-12-14 09:19:21,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:19:21,214 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 54 transitions. [2022-12-14 09:19:21,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 09:19:21,215 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 54 transitions. [2022-12-14 09:19:21,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 09:19:21,216 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:19:21,216 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:19:21,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 09:19:21,216 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 09:19:21,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:19:21,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1277688050, now seen corresponding path program 1 times [2022-12-14 09:19:21,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:19:21,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663344483] [2022-12-14 09:19:21,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:19:21,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:19:21,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:19:21,239 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 09:19:21,239 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:19:21,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663344483] [2022-12-14 09:19:21,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663344483] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:19:21,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:19:21,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:19:21,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210076457] [2022-12-14 09:19:21,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:19:21,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:19:21,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:19:21,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:19:21,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:19:21,241 INFO L87 Difference]: Start difference. First operand 44 states and 54 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 09:19:21,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:19:21,254 INFO L93 Difference]: Finished difference Result 61 states and 74 transitions. [2022-12-14 09:19:21,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:19:21,254 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 30 [2022-12-14 09:19:21,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:19:21,255 INFO L225 Difference]: With dead ends: 61 [2022-12-14 09:19:21,255 INFO L226 Difference]: Without dead ends: 38 [2022-12-14 09:19:21,255 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 [2022-12-14 09:19:21,256 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:19:21,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:19:21,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-12-14 09:19:21,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-12-14 09:19:21,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 32 states have internal predecessors, (33), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-14 09:19:21,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2022-12-14 09:19:21,260 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 30 [2022-12-14 09:19:21,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:19:21,260 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2022-12-14 09:19:21,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 09:19:21,260 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2022-12-14 09:19:21,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 09:19:21,261 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:19:21,262 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:19:21,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 09:19:21,262 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 09:19:21,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:19:21,262 INFO L85 PathProgramCache]: Analyzing trace with hash -320908208, now seen corresponding path program 1 times [2022-12-14 09:19:21,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:19:21,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568863454] [2022-12-14 09:19:21,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:19:21,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:19:21,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:19:21,284 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 09:19:21,284 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:19:21,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568863454] [2022-12-14 09:19:21,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568863454] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:19:21,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:19:21,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:19:21,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544356118] [2022-12-14 09:19:21,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:19:21,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:19:21,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:19:21,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:19:21,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:19:21,285 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 09:19:21,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:19:21,298 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2022-12-14 09:19:21,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:19:21,298 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2022-12-14 09:19:21,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:19:21,299 INFO L225 Difference]: With dead ends: 50 [2022-12-14 09:19:21,299 INFO L226 Difference]: Without dead ends: 36 [2022-12-14 09:19:21,299 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 [2022-12-14 09:19:21,300 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 3 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:19:21,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 60 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:19:21,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-12-14 09:19:21,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-12-14 09:19:21,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 29 states have internal predecessors, (30), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 09:19:21,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2022-12-14 09:19:21,303 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 31 [2022-12-14 09:19:21,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:19:21,303 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2022-12-14 09:19:21,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 09:19:21,303 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2022-12-14 09:19:21,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-12-14 09:19:21,304 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:19:21,304 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:19:21,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 09:19:21,305 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 09:19:21,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:19:21,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1177684631, now seen corresponding path program 1 times [2022-12-14 09:19:21,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:19:21,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543587862] [2022-12-14 09:19:21,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:19:21,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:19:21,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:19:21,335 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 09:19:21,335 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:19:21,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543587862] [2022-12-14 09:19:21,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543587862] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:19:21,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:19:21,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:19:21,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587665133] [2022-12-14 09:19:21,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:19:21,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:19:21,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:19:21,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:19:21,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:19:21,337 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-12-14 09:19:21,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:19:21,349 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2022-12-14 09:19:21,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:19:21,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 35 [2022-12-14 09:19:21,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:19:21,350 INFO L225 Difference]: With dead ends: 36 [2022-12-14 09:19:21,350 INFO L226 Difference]: Without dead ends: 35 [2022-12-14 09:19:21,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:19:21,350 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 5 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:19:21,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 53 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:19:21,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-12-14 09:19:21,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-12-14 09:19:21,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 28 states have internal predecessors, (29), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 09:19:21,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2022-12-14 09:19:21,353 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 35 [2022-12-14 09:19:21,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:19:21,354 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2022-12-14 09:19:21,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-12-14 09:19:21,354 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2022-12-14 09:19:21,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-14 09:19:21,355 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:19:21,355 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:19:21,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 09:19:21,355 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 09:19:21,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:19:21,356 INFO L85 PathProgramCache]: Analyzing trace with hash -2146481926, now seen corresponding path program 1 times [2022-12-14 09:19:21,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:19:21,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602825394] [2022-12-14 09:19:21,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:19:21,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:19:21,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:19:21,386 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 09:19:21,387 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:19:21,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602825394] [2022-12-14 09:19:21,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602825394] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:19:21,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:19:21,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:19:21,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947480066] [2022-12-14 09:19:21,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:19:21,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:19:21,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:19:21,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:19:21,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:19:21,388 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-12-14 09:19:21,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:19:21,403 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2022-12-14 09:19:21,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:19:21,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 36 [2022-12-14 09:19:21,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:19:21,404 INFO L225 Difference]: With dead ends: 40 [2022-12-14 09:19:21,404 INFO L226 Difference]: Without dead ends: 35 [2022-12-14 09:19:21,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:19:21,405 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:19:21,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 60 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:19:21,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-12-14 09:19:21,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-12-14 09:19:21,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 27 states have (on average 1.037037037037037) internal successors, (28), 28 states have internal predecessors, (28), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 09:19:21,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2022-12-14 09:19:21,410 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 36 [2022-12-14 09:19:21,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:19:21,410 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2022-12-14 09:19:21,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-12-14 09:19:21,410 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2022-12-14 09:19:21,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-12-14 09:19:21,411 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:19:21,411 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:19:21,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 09:19:21,411 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 09:19:21,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:19:21,412 INFO L85 PathProgramCache]: Analyzing trace with hash -2061110186, now seen corresponding path program 1 times [2022-12-14 09:19:21,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:19:21,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145381010] [2022-12-14 09:19:21,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:19:21,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:19:21,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:19:21,445 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 09:19:21,446 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:19:21,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145381010] [2022-12-14 09:19:21,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145381010] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:19:21,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:19:21,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:19:21,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002490737] [2022-12-14 09:19:21,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:19:21,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:19:21,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:19:21,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:19:21,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:19:21,447 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-12-14 09:19:21,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:19:21,460 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2022-12-14 09:19:21,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:19:21,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 37 [2022-12-14 09:19:21,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:19:21,460 INFO L225 Difference]: With dead ends: 37 [2022-12-14 09:19:21,461 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 09:19:21,461 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 [2022-12-14 09:19:21,461 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:19:21,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:19:21,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 09:19:21,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 09:19:21,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:19:21,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 09:19:21,463 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2022-12-14 09:19:21,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:19:21,463 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 09:19:21,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-12-14 09:19:21,463 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 09:19:21,463 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 09:19:21,466 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-12-14 09:19:21,466 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-12-14 09:19:21,466 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-12-14 09:19:21,466 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-12-14 09:19:21,466 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-12-14 09:19:21,467 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-12-14 09:19:21,467 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-12-14 09:19:21,467 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-12-14 09:19:21,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 09:19:21,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 09:19:21,528 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1412 1418) the Hoare annotation is: true [2022-12-14 09:19:21,528 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2022-12-14 09:19:21,528 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1426 1429) the Hoare annotation is: true [2022-12-14 09:19:21,528 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2022-12-14 09:19:21,528 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1597) no Hoare annotation was computed. [2022-12-14 09:19:21,528 INFO L899 garLoopResultBuilder]: For program point L1563(line 1563) no Hoare annotation was computed. [2022-12-14 09:19:21,528 INFO L902 garLoopResultBuilder]: At program point L1654(line 1654) the Hoare annotation is: true [2022-12-14 09:19:21,529 INFO L899 garLoopResultBuilder]: For program point L1588(line 1588) no Hoare annotation was computed. [2022-12-14 09:19:21,529 INFO L895 garLoopResultBuilder]: At program point L1646(line 1646) the Hoare annotation is: false [2022-12-14 09:19:21,529 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1653) no Hoare annotation was computed. [2022-12-14 09:19:21,529 INFO L899 garLoopResultBuilder]: For program point L1605(line 1605) no Hoare annotation was computed. [2022-12-14 09:19:21,529 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1569) no Hoare annotation was computed. [2022-12-14 09:19:21,529 INFO L899 garLoopResultBuilder]: For program point L1597(line 1597) no Hoare annotation was computed. [2022-12-14 09:19:21,529 INFO L895 garLoopResultBuilder]: At program point L1564(line 1564) the Hoare annotation is: false [2022-12-14 09:19:21,529 INFO L899 garLoopResultBuilder]: For program point L1597-1(line 1597) no Hoare annotation was computed. [2022-12-14 09:19:21,529 INFO L895 garLoopResultBuilder]: At program point L1589(line 1589) the Hoare annotation is: false [2022-12-14 09:19:21,529 INFO L895 garLoopResultBuilder]: At program point L1614(lines 1614 1622) the Hoare annotation is: (let ((.cse0 (+ 2 |ULTIMATE.start_goodG2B1_~data~2#1|))) (and (<= .cse0 0) (<= 0 .cse0))) [2022-12-14 09:19:21,530 INFO L902 garLoopResultBuilder]: At program point L1672(line 1672) the Hoare annotation is: true [2022-12-14 09:19:21,530 INFO L899 garLoopResultBuilder]: For program point L1672-1(line 1672) no Hoare annotation was computed. [2022-12-14 09:19:21,530 INFO L895 garLoopResultBuilder]: At program point L1606(line 1606) the Hoare annotation is: false [2022-12-14 09:19:21,530 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1569) no Hoare annotation was computed. [2022-12-14 09:19:21,530 INFO L899 garLoopResultBuilder]: For program point L1631(line 1631) no Hoare annotation was computed. [2022-12-14 09:19:21,530 INFO L895 garLoopResultBuilder]: At program point L1598(line 1598) the Hoare annotation is: false [2022-12-14 09:19:21,530 INFO L895 garLoopResultBuilder]: At program point L1623(lines 1623 1634) the Hoare annotation is: (and |ULTIMATE.start_goodG2B1_#t~switch97#1| (<= 0 (+ 2 |ULTIMATE.start_goodG2B1_~data~2#1|))) [2022-12-14 09:19:21,530 INFO L899 garLoopResultBuilder]: For program point L1557(line 1557) no Hoare annotation was computed. [2022-12-14 09:19:21,530 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 09:19:21,531 INFO L895 garLoopResultBuilder]: At program point L1640(lines 1640 1648) the Hoare annotation is: (let ((.cse0 (+ |ULTIMATE.start_goodG2B2_~data~3#1| 2))) (and (<= 0 .cse0) (<= .cse0 0) (<= 0 (+ 2 |ULTIMATE.start_goodG2B1_~data~2#1|)))) [2022-12-14 09:19:21,531 INFO L895 garLoopResultBuilder]: At program point L1574(line 1574) the Hoare annotation is: (and |ULTIMATE.start_goodB2G1_#t~switch93#1| (<= (+ |ULTIMATE.start_goodB2G1_~data~0#1| 2147483648) 0)) [2022-12-14 09:19:21,531 INFO L895 garLoopResultBuilder]: At program point L1632(line 1632) the Hoare annotation is: false [2022-12-14 09:19:21,531 INFO L899 garLoopResultBuilder]: For program point L1566(line 1566) no Hoare annotation was computed. [2022-12-14 09:19:21,531 INFO L899 garLoopResultBuilder]: For program point L1657(line 1657) no Hoare annotation was computed. [2022-12-14 09:19:21,531 INFO L895 garLoopResultBuilder]: At program point L1558(line 1558) the Hoare annotation is: false [2022-12-14 09:19:21,531 INFO L902 garLoopResultBuilder]: At program point L1649(lines 1649 1660) the Hoare annotation is: true [2022-12-14 09:19:21,531 INFO L899 garLoopResultBuilder]: For program point L1616(line 1616) no Hoare annotation was computed. [2022-12-14 09:19:21,531 INFO L895 garLoopResultBuilder]: At program point L1583(lines 1583 1591) the Hoare annotation is: (and |ULTIMATE.start_goodB2G2_#t~switch94#1| (<= (+ |ULTIMATE.start_goodB2G2_~data~1#1| 2147483648) 0)) [2022-12-14 09:19:21,531 INFO L902 garLoopResultBuilder]: At program point L1674(line 1674) the Hoare annotation is: true [2022-12-14 09:19:21,531 INFO L902 garLoopResultBuilder]: At program point L1674-1(line 1674) the Hoare annotation is: true [2022-12-14 09:19:21,532 INFO L899 garLoopResultBuilder]: For program point L1567(lines 1567 1575) no Hoare annotation was computed. [2022-12-14 09:19:21,532 INFO L902 garLoopResultBuilder]: At program point L1658(line 1658) the Hoare annotation is: true [2022-12-14 09:19:21,532 INFO L899 garLoopResultBuilder]: For program point L1625(line 1625) no Hoare annotation was computed. [2022-12-14 09:19:21,532 INFO L895 garLoopResultBuilder]: At program point L1592(lines 1592 1608) the Hoare annotation is: |ULTIMATE.start_goodB2G2_#t~switch95#1| [2022-12-14 09:19:21,532 INFO L895 garLoopResultBuilder]: At program point L1617(line 1617) the Hoare annotation is: false [2022-12-14 09:19:21,532 INFO L899 garLoopResultBuilder]: For program point L1642(line 1642) no Hoare annotation was computed. [2022-12-14 09:19:21,532 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1627) no Hoare annotation was computed. [2022-12-14 09:19:21,532 INFO L899 garLoopResultBuilder]: For program point L1651(line 1651) no Hoare annotation was computed. [2022-12-14 09:19:21,532 INFO L899 garLoopResultBuilder]: For program point L1585(line 1585) no Hoare annotation was computed. [2022-12-14 09:19:21,532 INFO L895 garLoopResultBuilder]: At program point L1552(lines 1552 1560) the Hoare annotation is: (and |ULTIMATE.start_goodB2G1_#t~switch92#1| (<= (+ |ULTIMATE.start_goodB2G1_~data~0#1| 2147483648) 0)) [2022-12-14 09:19:21,533 INFO L895 garLoopResultBuilder]: At program point L1602(line 1602) the Hoare annotation is: (and |ULTIMATE.start_goodB2G2_#t~switch95#1| (<= (+ |ULTIMATE.start_goodB2G2_~data~1#1| 2147483648) 0)) [2022-12-14 09:19:21,533 INFO L899 garLoopResultBuilder]: For program point L1569(line 1569) no Hoare annotation was computed. [2022-12-14 09:19:21,533 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 09:19:21,533 INFO L899 garLoopResultBuilder]: For program point L1569-1(line 1569) no Hoare annotation was computed. [2022-12-14 09:19:21,533 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1627) no Hoare annotation was computed. [2022-12-14 09:19:21,533 INFO L899 garLoopResultBuilder]: For program point L1627(line 1627) no Hoare annotation was computed. [2022-12-14 09:19:21,533 INFO L899 garLoopResultBuilder]: For program point L1594(line 1594) no Hoare annotation was computed. [2022-12-14 09:19:21,533 INFO L899 garLoopResultBuilder]: For program point L1627-1(line 1627) no Hoare annotation was computed. [2022-12-14 09:19:21,533 INFO L895 garLoopResultBuilder]: At program point L1561(lines 1561 1577) the Hoare annotation is: |ULTIMATE.start_goodB2G1_#t~switch93#1| [2022-12-14 09:19:21,533 INFO L895 garLoopResultBuilder]: At program point L1570(line 1570) the Hoare annotation is: false [2022-12-14 09:19:21,533 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1597) no Hoare annotation was computed. [2022-12-14 09:19:21,533 INFO L895 garLoopResultBuilder]: At program point L1628(line 1628) the Hoare annotation is: (and |ULTIMATE.start_goodG2B1_#t~switch97#1| (<= 0 (+ 2 |ULTIMATE.start_goodG2B1_~data~2#1|))) [2022-12-14 09:19:21,534 INFO L899 garLoopResultBuilder]: For program point L1595(lines 1595 1603) no Hoare annotation was computed. [2022-12-14 09:19:21,534 INFO L899 garLoopResultBuilder]: For program point L1653(line 1653) no Hoare annotation was computed. [2022-12-14 09:19:21,534 INFO L899 garLoopResultBuilder]: For program point L1653-1(line 1653) no Hoare annotation was computed. [2022-12-14 09:19:21,534 INFO L899 garLoopResultBuilder]: For program point L1554(line 1554) no Hoare annotation was computed. [2022-12-14 09:19:21,534 INFO L899 garLoopResultBuilder]: For program point L1645(line 1645) no Hoare annotation was computed. [2022-12-14 09:19:21,534 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1653) no Hoare annotation was computed. [2022-12-14 09:19:21,537 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:19:21,538 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 09:19:21,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 09:19:21 BoogieIcfgContainer [2022-12-14 09:19:21,549 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 09:19:21,550 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 09:19:21,550 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 09:19:21,550 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 09:19:21,550 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:19:20" (3/4) ... [2022-12-14 09:19:21,552 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 09:19:21,556 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-12-14 09:19:21,556 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-12-14 09:19:21,560 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-12-14 09:19:21,560 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-12-14 09:19:21,560 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-14 09:19:21,560 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 09:19:21,560 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 09:19:21,588 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca2d9d-36ec-48da-8268-3dd135c9144f/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 09:19:21,588 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 09:19:21,589 INFO L158 Benchmark]: Toolchain (without parser) took 2556.99ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 101.1MB in the beginning and 147.8MB in the end (delta: -46.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:19:21,589 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 100.7MB. Free memory is still 66.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:19:21,589 INFO L158 Benchmark]: CACSL2BoogieTranslator took 724.47ms. Allocated memory is still 163.6MB. Free memory was 100.9MB in the beginning and 79.5MB in the end (delta: 21.4MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2022-12-14 09:19:21,589 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.11ms. Allocated memory is still 163.6MB. Free memory was 79.5MB in the beginning and 134.1MB in the end (delta: -54.6MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2022-12-14 09:19:21,589 INFO L158 Benchmark]: Boogie Preprocessor took 21.33ms. Allocated memory is still 163.6MB. Free memory was 134.1MB in the beginning and 132.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:19:21,590 INFO L158 Benchmark]: RCFGBuilder took 377.01ms. Allocated memory is still 163.6MB. Free memory was 132.9MB in the beginning and 114.4MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 09:19:21,590 INFO L158 Benchmark]: TraceAbstraction took 1345.04ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 113.2MB in the beginning and 152.0MB in the end (delta: -38.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:19:21,590 INFO L158 Benchmark]: Witness Printer took 38.63ms. Allocated memory is still 197.1MB. Free memory was 152.0MB in the beginning and 147.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 09:19:21,592 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 100.7MB. Free memory is still 66.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 724.47ms. Allocated memory is still 163.6MB. Free memory was 100.9MB in the beginning and 79.5MB in the end (delta: 21.4MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.11ms. Allocated memory is still 163.6MB. Free memory was 79.5MB in the beginning and 134.1MB in the end (delta: -54.6MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.33ms. Allocated memory is still 163.6MB. Free memory was 134.1MB in the beginning and 132.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 377.01ms. Allocated memory is still 163.6MB. Free memory was 132.9MB in the beginning and 114.4MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1345.04ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 113.2MB in the beginning and 152.0MB in the end (delta: -38.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 38.63ms. Allocated memory is still 197.1MB. Free memory was 152.0MB in the beginning and 147.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1569]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1569]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1597]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1597]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1627]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1627]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1653]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1653]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 65 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 14, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 149 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 118 mSDsluCounter, 1253 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 584 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 231 IncrementalHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 669 mSDtfsCounter, 231 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=0, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 14 MinimizatonAttempts, 75 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 27 LocationsWithAnnotation, 101 PreInvPairs, 121 NumberOfFragments, 88 HoareAnnotationTreeSize, 101 FomulaSimplifications, 36 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 27 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 339 NumberOfCodeBlocks, 339 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 325 ConstructedInterpolants, 0 QuantifiedInterpolants, 411 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 56/56 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 1614]: Loop Invariant Derived loop invariant: 2 + data <= 0 && 0 <= 2 + data - InvariantResult [Line: 1640]: Loop Invariant Derived loop invariant: (0 <= data + 2 && data + 2 <= 0) && 0 <= 2 + data - InvariantResult [Line: 1674]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1561]: Loop Invariant Derived loop invariant: NULL - InvariantResult [Line: 1583]: Loop Invariant Derived loop invariant: aux-switch(6) { case 6: data = (-0x7fffffff - 1); break; default: printLine("Benign, fixed string"); break; }-aux && data + 2147483648 <= 0 - InvariantResult [Line: 1552]: Loop Invariant Derived loop invariant: aux-switch(6) { case 6: data = (-0x7fffffff - 1); break; default: printLine("Benign, fixed string"); break; }-aux && data + 2147483648 <= 0 - InvariantResult [Line: 1623]: Loop Invariant Derived loop invariant: aux-switch(7) { case 7: { int result = data - 1; printIntLine(result); } break; default: printLine("Benign, fixed string"); break; }-aux && 0 <= 2 + data - InvariantResult [Line: 1592]: Loop Invariant Derived loop invariant: NULL - InvariantResult [Line: 1649]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-12-14 09:19:21,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6ca2d9d-36ec-48da-8268-3dd135c9144f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE