./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_rand_multiply_11_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_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/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_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_rand_multiply_11_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/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_b4d3771b-91ac-440a-9b43-55d94efe8235/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 feffdc2b01ccdbd12a5c7e5db278421a078bfaec1c3cde15d100c039f7cfd26e --- 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 05:15:09,529 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:15:09,531 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:15:09,549 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:15:09,549 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:15:09,550 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:15:09,551 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:15:09,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:15:09,554 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:15:09,555 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:15:09,556 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:15:09,557 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:15:09,557 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:15:09,558 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:15:09,559 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:15:09,560 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:15:09,561 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:15:09,562 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:15:09,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:15:09,565 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:15:09,566 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:15:09,567 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:15:09,568 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:15:09,569 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:15:09,576 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:15:09,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:15:09,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:15:09,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:15:09,578 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:15:09,579 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:15:09,579 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:15:09,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:15:09,581 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:15:09,581 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:15:09,582 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:15:09,583 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:15:09,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:15:09,584 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:15:09,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:15:09,585 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:15:09,585 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:15:09,586 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 05:15:09,613 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:15:09,613 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:15:09,613 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:15:09,614 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:15:09,614 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:15:09,615 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:15:09,615 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:15:09,615 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:15:09,615 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:15:09,615 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 05:15:09,616 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:15:09,616 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:15:09,616 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 05:15:09,616 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 05:15:09,616 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:15:09,617 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 05:15:09,617 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 05:15:09,617 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 05:15:09,618 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:15:09,618 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 05:15:09,618 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 05:15:09,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:15:09,618 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 05:15:09,619 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:15:09,619 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 05:15:09,619 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 05:15:09,619 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 05:15:09,619 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:15:09,620 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 05:15:09,620 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:15:09,620 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:15:09,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:15:09,620 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:15:09,621 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 05:15:09,621 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:15:09,621 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 05:15:09,621 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 05:15:09,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 05:15:09,622 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 05:15:09,622 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:15:09,622 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_b4d3771b-91ac-440a-9b43-55d94efe8235/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> feffdc2b01ccdbd12a5c7e5db278421a078bfaec1c3cde15d100c039f7cfd26e [2022-12-14 05:15:09,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:15:09,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:15:09,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:15:09,820 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:15:09,821 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:15:09,822 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_rand_multiply_11_good.i [2022-12-14 05:15:12,305 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:15:12,541 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:15:12,541 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_rand_multiply_11_good.i [2022-12-14 05:15:12,554 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/data/d1fcfbd19/97bf937cb44143469d32602a8dc08a47/FLAG25e909a38 [2022-12-14 05:15:12,864 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/data/d1fcfbd19/97bf937cb44143469d32602a8dc08a47 [2022-12-14 05:15:12,867 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:15:12,868 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:15:12,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:15:12,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:15:12,874 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:15:12,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:15:12" (1/1) ... [2022-12-14 05:15:12,875 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e50e91f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:12, skipping insertion in model container [2022-12-14 05:15:12,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:15:12" (1/1) ... [2022-12-14 05:15:12,883 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:15:12,920 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:15:13,144 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 05:15:13,445 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:15:13,449 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 05:15:13,451 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 05:15:13,452 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 05:15:13,453 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 05:15:13,479 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 05:15:13,480 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:15:13,487 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:15:13,501 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 05:15:13,544 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:15:13,546 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 05:15:13,547 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 05:15:13,549 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 05:15:13,550 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 05:15:13,559 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 05:15:13,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:15:13,667 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:15:13,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:13 WrapperNode [2022-12-14 05:15:13,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:15:13,669 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:15:13,669 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:15:13,669 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:15:13,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:13" (1/1) ... [2022-12-14 05:15:13,696 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:13" (1/1) ... [2022-12-14 05:15:13,723 INFO L138 Inliner]: procedures = 503, calls = 77, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 149 [2022-12-14 05:15:13,723 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:15:13,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:15:13,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:15:13,724 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:15:13,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:13" (1/1) ... [2022-12-14 05:15:13,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:13" (1/1) ... [2022-12-14 05:15:13,736 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:13" (1/1) ... [2022-12-14 05:15:13,736 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:13" (1/1) ... [2022-12-14 05:15:13,743 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:13" (1/1) ... [2022-12-14 05:15:13,745 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:13" (1/1) ... [2022-12-14 05:15:13,747 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:13" (1/1) ... [2022-12-14 05:15:13,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:13" (1/1) ... [2022-12-14 05:15:13,752 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:15:13,752 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:15:13,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:15:13,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:15:13,753 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:13" (1/1) ... [2022-12-14 05:15:13,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:15:13,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:15:13,783 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:15:13,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:15:13,818 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-12-14 05:15:13,818 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-12-14 05:15:13,818 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 05:15:13,818 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 05:15:13,818 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrue [2022-12-14 05:15:13,818 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrue [2022-12-14 05:15:13,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 05:15:13,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:15:13,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:15:13,819 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsFalse [2022-12-14 05:15:13,819 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsFalse [2022-12-14 05:15:13,819 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 05:15:13,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 05:15:13,938 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:15:13,940 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:15:14,147 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:15:14,249 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:15:14,249 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 05:15:14,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:15:14 BoogieIcfgContainer [2022-12-14 05:15:14,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:15:14,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:15:14,255 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:15:14,258 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:15:14,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:15:12" (1/3) ... [2022-12-14 05:15:14,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@febfafd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:15:14, skipping insertion in model container [2022-12-14 05:15:14,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:13" (2/3) ... [2022-12-14 05:15:14,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@febfafd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:15:14, skipping insertion in model container [2022-12-14 05:15:14,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:15:14" (3/3) ... [2022-12-14 05:15:14,260 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_rand_multiply_11_good.i [2022-12-14 05:15:14,279 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:15:14,280 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-14 05:15:14,316 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 05:15:14,320 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;@59f06af5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 05:15:14,320 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-14 05:15:14,323 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 38 states have (on average 1.5) internal successors, (57), 54 states have internal predecessors, (57), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2022-12-14 05:15:14,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 05:15:14,329 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:15:14,329 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:15:14,330 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 05:15:14,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:15:14,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1336479705, now seen corresponding path program 1 times [2022-12-14 05:15:14,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:15:14,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27432152] [2022-12-14 05:15:14,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:15:14,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:15:14,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:15:14,544 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 05:15:14,544 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:15:14,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27432152] [2022-12-14 05:15:14,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27432152] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:15:14,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:15:14,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:15:14,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351461351] [2022-12-14 05:15:14,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:15:14,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:15:14,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:15:14,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:15:14,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:15:14,574 INFO L87 Difference]: Start difference. First operand has 69 states, 38 states have (on average 1.5) internal successors, (57), 54 states have internal predecessors, (57), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 05:15:14,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:15:14,640 INFO L93 Difference]: Finished difference Result 113 states and 156 transitions. [2022-12-14 05:15:14,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:15:14,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 17 [2022-12-14 05:15:14,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:15:14,649 INFO L225 Difference]: With dead ends: 113 [2022-12-14 05:15:14,649 INFO L226 Difference]: Without dead ends: 102 [2022-12-14 05:15:14,651 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 05:15:14,653 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 43 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:15:14,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 216 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:15:14,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-12-14 05:15:14,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 63. [2022-12-14 05:15:14,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 49 states have internal predecessors, (51), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 05:15:14,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 83 transitions. [2022-12-14 05:15:14,684 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 83 transitions. Word has length 17 [2022-12-14 05:15:14,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:15:14,685 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 83 transitions. [2022-12-14 05:15:14,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 05:15:14,685 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 83 transitions. [2022-12-14 05:15:14,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 05:15:14,686 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:15:14,686 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:15:14,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 05:15:14,686 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 05:15:14,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:15:14,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1518802026, now seen corresponding path program 1 times [2022-12-14 05:15:14,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:15:14,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453560227] [2022-12-14 05:15:14,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:15:14,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:15:14,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:15:14,756 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 05:15:14,756 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:15:14,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453560227] [2022-12-14 05:15:14,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453560227] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:15:14,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:15:14,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:15:14,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093096122] [2022-12-14 05:15:14,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:15:14,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:15:14,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:15:14,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:15:14,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:15:14,760 INFO L87 Difference]: Start difference. First operand 63 states and 83 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 05:15:14,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:15:14,801 INFO L93 Difference]: Finished difference Result 102 states and 137 transitions. [2022-12-14 05:15:14,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:15:14,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 18 [2022-12-14 05:15:14,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:15:14,802 INFO L225 Difference]: With dead ends: 102 [2022-12-14 05:15:14,802 INFO L226 Difference]: Without dead ends: 101 [2022-12-14 05:15:14,803 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 05:15:14,803 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 35 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:15:14,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 147 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:15:14,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-12-14 05:15:14,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 62. [2022-12-14 05:15:14,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 48 states have internal predecessors, (50), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 05:15:14,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 82 transitions. [2022-12-14 05:15:14,811 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 82 transitions. Word has length 18 [2022-12-14 05:15:14,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:15:14,811 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 82 transitions. [2022-12-14 05:15:14,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 05:15:14,811 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 82 transitions. [2022-12-14 05:15:14,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 05:15:14,811 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:15:14,812 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] [2022-12-14 05:15:14,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 05:15:14,812 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 05:15:14,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:15:14,812 INFO L85 PathProgramCache]: Analyzing trace with hash 741706850, now seen corresponding path program 1 times [2022-12-14 05:15:14,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:15:14,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439370556] [2022-12-14 05:15:14,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:15:14,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:15:14,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:15:14,890 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 05:15:14,890 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:15:14,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439370556] [2022-12-14 05:15:14,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439370556] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:15:14,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:15:14,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:15:14,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861089892] [2022-12-14 05:15:14,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:15:14,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:15:14,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:15:14,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:15:14,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:15:14,892 INFO L87 Difference]: Start difference. First operand 62 states and 82 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-12-14 05:15:14,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:15:14,927 INFO L93 Difference]: Finished difference Result 87 states and 115 transitions. [2022-12-14 05:15:14,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:15:14,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 28 [2022-12-14 05:15:14,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:15:14,929 INFO L225 Difference]: With dead ends: 87 [2022-12-14 05:15:14,929 INFO L226 Difference]: Without dead ends: 86 [2022-12-14 05:15:14,929 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 05:15:14,930 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 25 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:15:14,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 169 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:15:14,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-12-14 05:15:14,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 61. [2022-12-14 05:15:14,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 47 states have internal predecessors, (49), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 05:15:14,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 81 transitions. [2022-12-14 05:15:14,937 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 81 transitions. Word has length 28 [2022-12-14 05:15:14,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:15:14,937 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 81 transitions. [2022-12-14 05:15:14,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-12-14 05:15:14,937 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 81 transitions. [2022-12-14 05:15:14,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-12-14 05:15:14,938 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:15:14,938 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] [2022-12-14 05:15:14,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 05:15:14,938 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 05:15:14,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:15:14,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1518075988, now seen corresponding path program 1 times [2022-12-14 05:15:14,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:15:14,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452894955] [2022-12-14 05:15:14,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:15:14,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:15:14,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:15:14,993 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 05:15:14,993 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:15:14,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452894955] [2022-12-14 05:15:14,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452894955] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:15:14,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:15:14,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:15:14,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144725852] [2022-12-14 05:15:14,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:15:14,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:15:14,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:15:14,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:15:14,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:15:14,995 INFO L87 Difference]: Start difference. First operand 61 states and 81 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-12-14 05:15:15,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:15:15,030 INFO L93 Difference]: Finished difference Result 86 states and 114 transitions. [2022-12-14 05:15:15,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:15:15,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 29 [2022-12-14 05:15:15,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:15:15,032 INFO L225 Difference]: With dead ends: 86 [2022-12-14 05:15:15,033 INFO L226 Difference]: Without dead ends: 85 [2022-12-14 05:15:15,033 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 05:15:15,034 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 22 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:15:15,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 156 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:15:15,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-12-14 05:15:15,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 60. [2022-12-14 05:15:15,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 46 states have internal predecessors, (48), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 05:15:15,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 80 transitions. [2022-12-14 05:15:15,040 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 80 transitions. Word has length 29 [2022-12-14 05:15:15,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:15:15,040 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 80 transitions. [2022-12-14 05:15:15,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-12-14 05:15:15,040 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 80 transitions. [2022-12-14 05:15:15,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-12-14 05:15:15,041 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:15:15,041 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:15,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 05:15:15,041 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 05:15:15,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:15:15,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1674684715, now seen corresponding path program 1 times [2022-12-14 05:15:15,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:15:15,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506687311] [2022-12-14 05:15:15,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:15:15,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:15:15,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:15:15,127 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 05:15:15,127 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:15:15,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506687311] [2022-12-14 05:15:15,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506687311] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:15:15,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193327244] [2022-12-14 05:15:15,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:15:15,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:15:15,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:15:15,129 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:15:15,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 05:15:15,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:15:15,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 05:15:15,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:15:15,255 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 05:15:15,255 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:15:15,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193327244] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:15:15,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 05:15:15,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-12-14 05:15:15,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269541551] [2022-12-14 05:15:15,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:15:15,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:15:15,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:15:15,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:15:15,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:15:15,257 INFO L87 Difference]: Start difference. First operand 60 states and 80 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-14 05:15:15,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:15:15,289 INFO L93 Difference]: Finished difference Result 92 states and 118 transitions. [2022-12-14 05:15:15,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:15:15,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 38 [2022-12-14 05:15:15,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:15:15,291 INFO L225 Difference]: With dead ends: 92 [2022-12-14 05:15:15,291 INFO L226 Difference]: Without dead ends: 78 [2022-12-14 05:15:15,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:15:15,292 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 12 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:15:15,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 136 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:15:15,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-12-14 05:15:15,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 65. [2022-12-14 05:15:15,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 40 states have (on average 1.325) internal successors, (53), 49 states have internal predecessors, (53), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) [2022-12-14 05:15:15,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 87 transitions. [2022-12-14 05:15:15,298 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 87 transitions. Word has length 38 [2022-12-14 05:15:15,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:15:15,298 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 87 transitions. [2022-12-14 05:15:15,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-14 05:15:15,298 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 87 transitions. [2022-12-14 05:15:15,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-12-14 05:15:15,299 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:15:15,299 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:15,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 05:15:15,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:15:15,500 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 05:15:15,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:15:15,501 INFO L85 PathProgramCache]: Analyzing trace with hash 375618764, now seen corresponding path program 1 times [2022-12-14 05:15:15,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:15:15,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284585277] [2022-12-14 05:15:15,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:15:15,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:15:15,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:15:15,672 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 05:15:15,673 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:15:15,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284585277] [2022-12-14 05:15:15,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284585277] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:15:15,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153449422] [2022-12-14 05:15:15,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:15:15,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:15:15,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:15:15,674 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:15:15,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 05:15:15,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:15:15,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 05:15:15,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:15:15,782 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 05:15:15,782 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:15:15,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [153449422] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:15:15,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 05:15:15,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-12-14 05:15:15,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366156195] [2022-12-14 05:15:15,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:15:15,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:15:15,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:15:15,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:15:15,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:15:15,784 INFO L87 Difference]: Start difference. First operand 65 states and 87 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-14 05:15:15,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:15:15,810 INFO L93 Difference]: Finished difference Result 65 states and 87 transitions. [2022-12-14 05:15:15,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:15:15,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 39 [2022-12-14 05:15:15,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:15:15,811 INFO L225 Difference]: With dead ends: 65 [2022-12-14 05:15:15,811 INFO L226 Difference]: Without dead ends: 64 [2022-12-14 05:15:15,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:15:15,813 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 14 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:15:15,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 112 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:15:15,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-12-14 05:15:15,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-12-14 05:15:15,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 40 states have (on average 1.3) internal successors, (52), 48 states have internal predecessors, (52), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) [2022-12-14 05:15:15,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 86 transitions. [2022-12-14 05:15:15,818 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 86 transitions. Word has length 39 [2022-12-14 05:15:15,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:15:15,818 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 86 transitions. [2022-12-14 05:15:15,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-14 05:15:15,818 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 86 transitions. [2022-12-14 05:15:15,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-12-14 05:15:15,819 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:15:15,819 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:15,830 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 05:15:16,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:15:16,026 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 05:15:16,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:15:16,027 INFO L85 PathProgramCache]: Analyzing trace with hash -288679909, now seen corresponding path program 1 times [2022-12-14 05:15:16,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:15:16,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822612445] [2022-12-14 05:15:16,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:15:16,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:15:16,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:15:16,113 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-14 05:15:16,114 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:15:16,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822612445] [2022-12-14 05:15:16,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822612445] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:15:16,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406766887] [2022-12-14 05:15:16,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:15:16,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:15:16,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:15:16,116 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:15:16,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 05:15:16,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:15:16,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 05:15:16,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:15:16,228 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 05:15:16,229 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:15:16,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406766887] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:15:16,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 05:15:16,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-12-14 05:15:16,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023230398] [2022-12-14 05:15:16,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:15:16,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:15:16,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:15:16,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:15:16,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:15:16,231 INFO L87 Difference]: Start difference. First operand 64 states and 86 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-14 05:15:16,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:15:16,258 INFO L93 Difference]: Finished difference Result 92 states and 115 transitions. [2022-12-14 05:15:16,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:15:16,259 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 41 [2022-12-14 05:15:16,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:15:16,260 INFO L225 Difference]: With dead ends: 92 [2022-12-14 05:15:16,260 INFO L226 Difference]: Without dead ends: 73 [2022-12-14 05:15:16,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:15:16,261 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 10 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:15:16,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 148 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:15:16,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-12-14 05:15:16,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 62. [2022-12-14 05:15:16,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 46 states have internal predecessors, (49), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) [2022-12-14 05:15:16,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 83 transitions. [2022-12-14 05:15:16,269 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 83 transitions. Word has length 41 [2022-12-14 05:15:16,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:15:16,270 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 83 transitions. [2022-12-14 05:15:16,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-14 05:15:16,270 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 83 transitions. [2022-12-14 05:15:16,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-14 05:15:16,271 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:15:16,271 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:16,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 05:15:16,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-14 05:15:16,472 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 05:15:16,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:15:16,473 INFO L85 PathProgramCache]: Analyzing trace with hash 872211837, now seen corresponding path program 1 times [2022-12-14 05:15:16,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:15:16,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248620919] [2022-12-14 05:15:16,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:15:16,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:15:16,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:15:16,550 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-14 05:15:16,550 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:15:16,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248620919] [2022-12-14 05:15:16,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248620919] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:15:16,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1649426623] [2022-12-14 05:15:16,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:15:16,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:15:16,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:15:16,551 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:15:16,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 05:15:16,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:15:16,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 05:15:16,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:15:16,651 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-14 05:15:16,651 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:15:16,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1649426623] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:15:16,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 05:15:16,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-12-14 05:15:16,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175651825] [2022-12-14 05:15:16,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:15:16,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:15:16,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:15:16,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:15:16,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:15:16,653 INFO L87 Difference]: Start difference. First operand 62 states and 83 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-12-14 05:15:16,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:15:16,681 INFO L93 Difference]: Finished difference Result 62 states and 83 transitions. [2022-12-14 05:15:16,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:15:16,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 48 [2022-12-14 05:15:16,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:15:16,683 INFO L225 Difference]: With dead ends: 62 [2022-12-14 05:15:16,683 INFO L226 Difference]: Without dead ends: 61 [2022-12-14 05:15:16,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:15:16,684 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 2 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:15:16,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 132 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:15:16,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-12-14 05:15:16,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-12-14 05:15:16,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 39 states have (on average 1.2307692307692308) internal successors, (48), 45 states have internal predecessors, (48), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) [2022-12-14 05:15:16,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 82 transitions. [2022-12-14 05:15:16,690 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 82 transitions. Word has length 48 [2022-12-14 05:15:16,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:15:16,691 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 82 transitions. [2022-12-14 05:15:16,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-12-14 05:15:16,691 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 82 transitions. [2022-12-14 05:15:16,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-12-14 05:15:16,692 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:15:16,692 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:16,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 05:15:16,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:15:16,894 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 05:15:16,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:15:16,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1268763350, now seen corresponding path program 1 times [2022-12-14 05:15:16,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:15:16,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279991721] [2022-12-14 05:15:16,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:15:16,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:15:16,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:15:17,035 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-14 05:15:17,035 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:15:17,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279991721] [2022-12-14 05:15:17,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279991721] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:15:17,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674356363] [2022-12-14 05:15:17,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:15:17,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:15:17,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:15:17,037 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:15:17,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 05:15:17,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:15:17,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 05:15:17,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:15:17,146 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 05:15:17,146 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:15:17,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674356363] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:15:17,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 05:15:17,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-12-14 05:15:17,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103850106] [2022-12-14 05:15:17,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:15:17,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 05:15:17,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:15:17,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 05:15:17,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 05:15:17,148 INFO L87 Difference]: Start difference. First operand 61 states and 82 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 05:15:17,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:15:17,182 INFO L93 Difference]: Finished difference Result 95 states and 121 transitions. [2022-12-14 05:15:17,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 05:15:17,182 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 49 [2022-12-14 05:15:17,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:15:17,183 INFO L225 Difference]: With dead ends: 95 [2022-12-14 05:15:17,183 INFO L226 Difference]: Without dead ends: 61 [2022-12-14 05:15:17,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 05:15:17,185 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:15:17,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 190 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:15:17,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-12-14 05:15:17,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-12-14 05:15:17,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 39 states have (on average 1.205128205128205) internal successors, (47), 45 states have internal predecessors, (47), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) [2022-12-14 05:15:17,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 81 transitions. [2022-12-14 05:15:17,191 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 81 transitions. Word has length 49 [2022-12-14 05:15:17,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:15:17,191 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 81 transitions. [2022-12-14 05:15:17,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 05:15:17,191 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 81 transitions. [2022-12-14 05:15:17,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-12-14 05:15:17,192 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:15:17,192 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:17,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 05:15:17,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:15:17,393 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 05:15:17,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:15:17,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1942257601, now seen corresponding path program 1 times [2022-12-14 05:15:17,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:15:17,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934250511] [2022-12-14 05:15:17,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:15:17,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:15:17,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:15:17,449 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-14 05:15:17,449 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:15:17,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934250511] [2022-12-14 05:15:17,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934250511] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:15:17,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917469508] [2022-12-14 05:15:17,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:15:17,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:15:17,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:15:17,450 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:15:17,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 05:15:17,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:15:17,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 05:15:17,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:15:17,564 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-14 05:15:17,564 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:15:17,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917469508] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:15:17,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 05:15:17,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-12-14 05:15:17,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41784015] [2022-12-14 05:15:17,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:15:17,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 05:15:17,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:15:17,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 05:15:17,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 05:15:17,566 INFO L87 Difference]: Start difference. First operand 61 states and 81 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 05:15:17,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:15:17,598 INFO L93 Difference]: Finished difference Result 73 states and 93 transitions. [2022-12-14 05:15:17,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 05:15:17,599 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 50 [2022-12-14 05:15:17,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:15:17,600 INFO L225 Difference]: With dead ends: 73 [2022-12-14 05:15:17,600 INFO L226 Difference]: Without dead ends: 61 [2022-12-14 05:15:17,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 05:15:17,601 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 0 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:15:17,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 187 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:15:17,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-12-14 05:15:17,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-12-14 05:15:17,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 39 states have (on average 1.1538461538461537) internal successors, (45), 45 states have internal predecessors, (45), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 14 states have call predecessors, (17), 17 states have call successors, (17) [2022-12-14 05:15:17,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 79 transitions. [2022-12-14 05:15:17,605 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 79 transitions. Word has length 50 [2022-12-14 05:15:17,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:15:17,606 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 79 transitions. [2022-12-14 05:15:17,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-14 05:15:17,606 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 79 transitions. [2022-12-14 05:15:17,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-12-14 05:15:17,606 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:15:17,607 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:17,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 05:15:17,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-14 05:15:17,808 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 05:15:17,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:15:17,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1066259830, now seen corresponding path program 1 times [2022-12-14 05:15:17,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:15:17,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191636497] [2022-12-14 05:15:17,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:15:17,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:15:17,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:15:17,887 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-14 05:15:17,888 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:15:17,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191636497] [2022-12-14 05:15:17,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191636497] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:15:17,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:15:17,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 05:15:17,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162646572] [2022-12-14 05:15:17,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:15:17,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 05:15:17,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:15:17,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 05:15:17,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 05:15:17,891 INFO L87 Difference]: Start difference. First operand 61 states and 79 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-14 05:15:17,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:15:17,935 INFO L93 Difference]: Finished difference Result 75 states and 92 transitions. [2022-12-14 05:15:17,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 05:15:17,935 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 54 [2022-12-14 05:15:17,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:15:17,936 INFO L225 Difference]: With dead ends: 75 [2022-12-14 05:15:17,936 INFO L226 Difference]: Without dead ends: 56 [2022-12-14 05:15:17,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 05:15:17,937 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 0 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:15:17,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 179 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:15:17,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-12-14 05:15:17,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-12-14 05:15:17,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 41 states have internal predecessors, (41), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 12 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-14 05:15:17,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 71 transitions. [2022-12-14 05:15:17,941 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 71 transitions. Word has length 54 [2022-12-14 05:15:17,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:15:17,941 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 71 transitions. [2022-12-14 05:15:17,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-14 05:15:17,942 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 71 transitions. [2022-12-14 05:15:17,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-14 05:15:17,943 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:15:17,943 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:17,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 05:15:17,943 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 05:15:17,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:15:17,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1567925906, now seen corresponding path program 1 times [2022-12-14 05:15:17,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:15:17,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233114828] [2022-12-14 05:15:17,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:15:17,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:15:17,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:15:18,038 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-14 05:15:18,038 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:15:18,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233114828] [2022-12-14 05:15:18,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233114828] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:15:18,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090368070] [2022-12-14 05:15:18,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:15:18,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:15:18,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:15:18,039 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:15:18,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 05:15:18,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:15:18,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 05:15:18,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:15:18,164 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-14 05:15:18,164 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:15:18,243 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-14 05:15:18,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2090368070] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:15:18,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2093333494] [2022-12-14 05:15:18,260 INFO L159 IcfgInterpreter]: Started Sifa with 45 locations of interest [2022-12-14 05:15:18,260 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:15:18,263 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:15:18,267 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:15:18,267 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:15:20,601 INFO L197 IcfgInterpreter]: Interpreting procedure globalReturnsTrue with input of size 99 for LOIs [2022-12-14 05:15:20,610 INFO L197 IcfgInterpreter]: Interpreting procedure printIntLine with input of size 31 for LOIs [2022-12-14 05:15:20,612 INFO L197 IcfgInterpreter]: Interpreting procedure globalReturnsFalse with input of size 99 for LOIs [2022-12-14 05:15:20,621 INFO L197 IcfgInterpreter]: Interpreting procedure printLine with input of size 77 for LOIs [2022-12-14 05:15:20,626 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:16:36,301 WARN L233 SmtUtils]: Spent 1.24m on a formula simplification. DAG size of input: 207 DAG size of output: 136 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:17:45,977 WARN L233 SmtUtils]: Spent 1.16m on a formula simplification. DAG size of input: 205 DAG size of output: 141 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:18:58,738 WARN L233 SmtUtils]: Spent 1.18m on a formula simplification. DAG size of input: 207 DAG size of output: 140 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:20:17,648 WARN L233 SmtUtils]: Spent 1.28m on a formula simplification. DAG size of input: 212 DAG size of output: 140 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:21:33,129 WARN L233 SmtUtils]: Spent 1.22m on a formula simplification. DAG size of input: 288 DAG size of output: 178 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:21:34,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2093333494] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:21:34,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:21:34,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [4, 4, 4] total 36 [2022-12-14 05:21:34,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144433011] [2022-12-14 05:21:34,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:21:34,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-12-14 05:21:34,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:21:34,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-12-14 05:21:34,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=1151, Unknown=3, NotChecked=0, Total=1332 [2022-12-14 05:21:34,077 INFO L87 Difference]: Start difference. First operand 56 states and 71 transitions. Second operand has 30 states, 20 states have (on average 1.5) internal successors, (30), 23 states have internal predecessors, (30), 10 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-12-14 05:21:43,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:21:45,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:21:47,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:21:51,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:22:20,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:22:30,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:22:32,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:22:41,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:22:43,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:22:45,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:22:47,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:22:49,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:22:51,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:23:00,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:23:02,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:23:04,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:23:06,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:23:08,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:23:16,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:23:18,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:23:27,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:23:29,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:23:32,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:23:40,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:23:42,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:23:51,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:23:53,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:23:55,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:23:57,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:23:59,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:24:08,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:24:10,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:24:12,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:24:14,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:24:16,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:24:18,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:24:20,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:24:22,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:24:24,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:24:26,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:24:28,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:24:30,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:24:32,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:24:34,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 05:24:34,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:24:34,474 INFO L93 Difference]: Finished difference Result 159 states and 195 transitions. [2022-12-14 05:24:34,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-14 05:24:34,480 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 20 states have (on average 1.5) internal successors, (30), 23 states have internal predecessors, (30), 10 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Word has length 56 [2022-12-14 05:24:34,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:24:34,481 INFO L225 Difference]: With dead ends: 159 [2022-12-14 05:24:34,481 INFO L226 Difference]: Without dead ends: 95 [2022-12-14 05:24:34,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 129 SyntacticMatches, 6 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 689 ImplicationChecksByTransitivity, 461.4s TimeCoverageRelationStatistics Valid=334, Invalid=2079, Unknown=37, NotChecked=0, Total=2450 [2022-12-14 05:24:34,482 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 148 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 1106 mSolverCounterSat, 49 mSolverCounterUnsat, 44 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 91.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 1199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1106 IncrementalHoareTripleChecker+Invalid, 44 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 92.4s IncrementalHoareTripleChecker+Time [2022-12-14 05:24:34,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 239 Invalid, 1199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1106 Invalid, 44 Unknown, 0 Unchecked, 92.4s Time] [2022-12-14 05:24:34,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2022-12-14 05:24:34,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 64. [2022-12-14 05:24:34,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 42 states have (on average 1.0952380952380953) internal successors, (46), 45 states have internal predecessors, (46), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 05:24:34,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 78 transitions. [2022-12-14 05:24:34,495 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 78 transitions. Word has length 56 [2022-12-14 05:24:34,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:24:34,495 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 78 transitions. [2022-12-14 05:24:34,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 20 states have (on average 1.5) internal successors, (30), 23 states have internal predecessors, (30), 10 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-12-14 05:24:34,495 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 78 transitions. [2022-12-14 05:24:34,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-12-14 05:24:34,496 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:24:34,496 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:24:34,501 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 05:24:34,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-14 05:24:34,698 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 05:24:34,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:24:34,700 INFO L85 PathProgramCache]: Analyzing trace with hash 2123646212, now seen corresponding path program 1 times [2022-12-14 05:24:34,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:24:34,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454725262] [2022-12-14 05:24:34,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:24:34,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:24:34,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:24:34,811 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-14 05:24:34,811 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:24:34,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454725262] [2022-12-14 05:24:34,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454725262] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:24:34,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656679325] [2022-12-14 05:24:34,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:24:34,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:24:34,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:24:34,812 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:24:34,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 05:24:34,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:24:34,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 05:24:34,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:24:34,930 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-14 05:24:34,931 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:24:34,993 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-14 05:24:34,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1656679325] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:24:34,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [797141970] [2022-12-14 05:24:34,996 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2022-12-14 05:24:34,996 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:24:34,997 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:24:34,997 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:24:34,997 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:24:36,827 INFO L197 IcfgInterpreter]: Interpreting procedure globalReturnsTrue with input of size 99 for LOIs [2022-12-14 05:24:36,836 INFO L197 IcfgInterpreter]: Interpreting procedure printIntLine with input of size 31 for LOIs [2022-12-14 05:24:36,838 INFO L197 IcfgInterpreter]: Interpreting procedure globalReturnsFalse with input of size 99 for LOIs [2022-12-14 05:24:36,847 INFO L197 IcfgInterpreter]: Interpreting procedure printLine with input of size 113 for LOIs [2022-12-14 05:24:36,865 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:24:45,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [797141970] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:24:45,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:24:45,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 37 [2022-12-14 05:24:45,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820306975] [2022-12-14 05:24:45,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:24:45,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-12-14 05:24:45,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:24:45,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-12-14 05:24:45,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=1213, Unknown=0, NotChecked=0, Total=1406 [2022-12-14 05:24:45,594 INFO L87 Difference]: Start difference. First operand 64 states and 78 transitions. Second operand has 31 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 24 states have internal predecessors, (31), 11 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 05:24:55,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:24:55,976 INFO L93 Difference]: Finished difference Result 115 states and 138 transitions. [2022-12-14 05:24:55,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-14 05:24:55,977 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 24 states have internal predecessors, (31), 11 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 60 [2022-12-14 05:24:55,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:24:55,978 INFO L225 Difference]: With dead ends: 115 [2022-12-14 05:24:55,978 INFO L226 Difference]: Without dead ends: 91 [2022-12-14 05:24:55,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 140 SyntacticMatches, 6 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 15.4s TimeCoverageRelationStatistics Valid=374, Invalid=2076, Unknown=0, NotChecked=0, Total=2450 [2022-12-14 05:24:55,979 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 186 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 1125 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-12-14 05:24:55,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 204 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1125 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-12-14 05:24:55,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-12-14 05:24:55,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 67. [2022-12-14 05:24:55,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 44 states have (on average 1.0909090909090908) internal successors, (48), 47 states have internal predecessors, (48), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 05:24:55,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 80 transitions. [2022-12-14 05:24:55,994 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 80 transitions. Word has length 60 [2022-12-14 05:24:55,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:24:55,994 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 80 transitions. [2022-12-14 05:24:55,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 24 states have internal predecessors, (31), 11 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 05:24:55,994 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 80 transitions. [2022-12-14 05:24:55,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-12-14 05:24:55,995 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:24:55,995 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:24:56,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-12-14 05:24:56,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-14 05:24:56,197 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 05:24:56,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:24:56,198 INFO L85 PathProgramCache]: Analyzing trace with hash 437047809, now seen corresponding path program 1 times [2022-12-14 05:24:56,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:24:56,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698983104] [2022-12-14 05:24:56,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:24:56,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:24:56,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:24:56,308 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-14 05:24:56,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:24:56,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698983104] [2022-12-14 05:24:56,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698983104] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:24:56,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90355892] [2022-12-14 05:24:56,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:24:56,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:24:56,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:24:56,310 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:24:56,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d3771b-91ac-440a-9b43-55d94efe8235/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-14 05:24:56,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:24:56,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 05:24:56,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:24:56,424 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-14 05:24:56,424 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:24:56,476 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-14 05:24:56,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [90355892] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:24:56,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1087235404] [2022-12-14 05:24:56,479 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2022-12-14 05:24:56,479 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:24:56,480 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:24:56,480 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:24:56,480 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:24:58,622 INFO L197 IcfgInterpreter]: Interpreting procedure globalReturnsTrue with input of size 99 for LOIs [2022-12-14 05:24:58,631 INFO L197 IcfgInterpreter]: Interpreting procedure printIntLine with input of size 31 for LOIs [2022-12-14 05:24:58,634 INFO L197 IcfgInterpreter]: Interpreting procedure globalReturnsFalse with input of size 99 for LOIs [2022-12-14 05:24:58,643 INFO L197 IcfgInterpreter]: Interpreting procedure printLine with input of size 113 for LOIs [2022-12-14 05:24:58,664 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:26:11,674 WARN L233 SmtUtils]: Spent 1.18m on a formula simplification. DAG size of input: 204 DAG size of output: 137 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:27:22,462 WARN L233 SmtUtils]: Spent 1.18m on a formula simplification. DAG size of input: 205 DAG size of output: 138 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:28:33,558 WARN L233 SmtUtils]: Spent 1.18m on a formula simplification. DAG size of input: 207 DAG size of output: 140 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:29:52,337 WARN L233 SmtUtils]: Spent 1.31m on a formula simplification. DAG size of input: 213 DAG size of output: 140 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)