./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_17_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_17_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur --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 d4ea41e2590f6d53feb4a10faaed8fdc938d31e5e9690998824676ba87605bf2 --- 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-38b53e6 [2022-11-25 23:36:12,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:36:12,666 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:36:12,695 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:36:12,696 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:36:12,699 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:36:12,702 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:36:12,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:36:12,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:36:12,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:36:12,716 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:36:12,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:36:12,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:36:12,721 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:36:12,724 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:36:12,726 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:36:12,728 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:36:12,729 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:36:12,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:36:12,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:36:12,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:36:12,743 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:36:12,744 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:36:12,745 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:36:12,755 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:36:12,755 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:36:12,756 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:36:12,758 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:36:12,758 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:36:12,759 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:36:12,760 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:36:12,762 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:36:12,763 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:36:12,764 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:36:12,765 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:36:12,765 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:36:12,766 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:36:12,766 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:36:12,766 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:36:12,767 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:36:12,768 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:36:12,769 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-25 23:36:12,812 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:36:12,812 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:36:12,813 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:36:12,813 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:36:12,814 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:36:12,815 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:36:12,815 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:36:12,815 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:36:12,815 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:36:12,816 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:36:12,817 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:36:12,817 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:36:12,817 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:36:12,818 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:36:12,818 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:36:12,818 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:36:12,818 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:36:12,819 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:36:12,820 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:36:12,820 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:36:12,820 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:36:12,821 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:36:12,821 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:36:12,821 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:36:12,821 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:36:12,822 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:36:12,822 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:36:12,822 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:36:12,823 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:36:12,823 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:36:12,823 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:36:12,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:36:12,824 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:36:12,824 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:36:12,824 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:36:12,825 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:36:12,825 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:36:12,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:36:12,825 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:36:12,825 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:36:12,826 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_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4ea41e2590f6d53feb4a10faaed8fdc938d31e5e9690998824676ba87605bf2 [2022-11-25 23:36:13,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:36:13,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:36:13,146 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:36:13,148 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:36:13,148 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:36:13,150 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_17_good.i [2022-11-25 23:36:16,363 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:36:16,763 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:36:16,764 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6956a84f-f76f-4049-8a67-e5ba3e557a6c/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_17_good.i [2022-11-25 23:36:16,788 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur/data/92833667f/46ab1133680d4cfc98aa012f407345f0/FLAG8daf8f13f [2022-11-25 23:36:16,812 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur/data/92833667f/46ab1133680d4cfc98aa012f407345f0 [2022-11-25 23:36:16,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:36:16,818 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:36:16,821 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:36:16,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:36:16,825 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:36:16,826 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:36:16" (1/1) ... [2022-11-25 23:36:16,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@445e2cf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:16, skipping insertion in model container [2022-11-25 23:36:16,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:36:16" (1/1) ... [2022-11-25 23:36:16,837 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:36:16,911 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:36:17,327 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:36:17,817 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:36:17,823 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:36:17,826 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:36:17,828 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:36:17,829 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:36:17,867 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 23:36:17,876 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:36:17,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:36:17,892 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:36:17,931 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:36:18,023 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:36:18,030 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:36:18,032 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:36:18,039 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:36:18,040 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:36:18,050 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 23:36:18,054 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:36:18,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:36:18,273 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:36:18,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:18 WrapperNode [2022-11-25 23:36:18,277 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:36:18,278 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:36:18,278 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:36:18,278 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:36:18,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:18" (1/1) ... [2022-11-25 23:36:18,313 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:18" (1/1) ... [2022-11-25 23:36:18,342 INFO L138 Inliner]: procedures = 502, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 105 [2022-11-25 23:36:18,343 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:36:18,343 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:36:18,344 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:36:18,344 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:36:18,354 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:18" (1/1) ... [2022-11-25 23:36:18,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:18" (1/1) ... [2022-11-25 23:36:18,357 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:18" (1/1) ... [2022-11-25 23:36:18,358 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:18" (1/1) ... [2022-11-25 23:36:18,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:18" (1/1) ... [2022-11-25 23:36:18,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:18" (1/1) ... [2022-11-25 23:36:18,382 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:18" (1/1) ... [2022-11-25 23:36:18,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:18" (1/1) ... [2022-11-25 23:36:18,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:36:18,386 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:36:18,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:36:18,387 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:36:18,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:18" (1/1) ... [2022-11-25 23:36:18,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:36:18,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:36:18,432 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:36:18,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:36:18,471 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-25 23:36:18,472 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-25 23:36:18,472 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 23:36:18,472 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 23:36:18,472 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 23:36:18,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:36:18,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 23:36:18,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:36:18,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:36:18,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:36:18,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:36:18,473 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 23:36:18,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:36:18,666 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:36:18,668 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:36:18,883 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:36:18,927 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:36:18,927 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-25 23:36:18,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:36:18 BoogieIcfgContainer [2022-11-25 23:36:18,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:36:18,933 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:36:18,933 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:36:18,937 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:36:18,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:36:16" (1/3) ... [2022-11-25 23:36:18,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a065b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:36:18, skipping insertion in model container [2022-11-25 23:36:18,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:18" (2/3) ... [2022-11-25 23:36:18,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a065b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:36:18, skipping insertion in model container [2022-11-25 23:36:18,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:36:18" (3/3) ... [2022-11-25 23:36:18,940 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_17_good.i [2022-11-25 23:36:18,961 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:36:18,961 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-11-25 23:36:19,038 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:36:19,046 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;@645511, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:36:19,047 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-11-25 23:36:19,055 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 26 states have (on average 1.6923076923076923) internal successors, (44), 40 states have internal predecessors, (44), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 23:36:19,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 23:36:19,062 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:36:19,063 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:36:19,064 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-25 23:36:19,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:36:19,069 INFO L85 PathProgramCache]: Analyzing trace with hash -183374956, now seen corresponding path program 1 times [2022-11-25 23:36:19,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:36:19,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431914428] [2022-11-25 23:36:19,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:36:19,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:36:19,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:36:19,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:36:19,357 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:36:19,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431914428] [2022-11-25 23:36:19,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431914428] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:36:19,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:36:19,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:36:19,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368895462] [2022-11-25 23:36:19,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:36:19,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:36:19,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:36:19,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:36:19,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:36:19,435 INFO L87 Difference]: Start difference. First operand has 47 states, 26 states have (on average 1.6923076923076923) internal successors, (44), 40 states have internal predecessors, (44), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:36:19,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:36:19,499 INFO L93 Difference]: Finished difference Result 91 states and 108 transitions. [2022-11-25 23:36:19,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:36:19,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2022-11-25 23:36:19,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:36:19,510 INFO L225 Difference]: With dead ends: 91 [2022-11-25 23:36:19,510 INFO L226 Difference]: Without dead ends: 52 [2022-11-25 23:36:19,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:36:19,517 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 7 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:36:19,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 89 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:36:19,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-25 23:36:19,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 45. [2022-11-25 23:36:19,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 26 states have (on average 1.6538461538461537) internal successors, (43), 39 states have internal predecessors, (43), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-25 23:36:19,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 53 transitions. [2022-11-25 23:36:19,563 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 53 transitions. Word has length 9 [2022-11-25 23:36:19,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:36:19,564 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 53 transitions. [2022-11-25 23:36:19,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:36:19,564 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 53 transitions. [2022-11-25 23:36:19,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 23:36:19,566 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:36:19,566 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:36:19,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:36:19,567 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-25 23:36:19,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:36:19,568 INFO L85 PathProgramCache]: Analyzing trace with hash -187058891, now seen corresponding path program 1 times [2022-11-25 23:36:19,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:36:19,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944428051] [2022-11-25 23:36:19,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:36:19,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:36:19,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:36:19,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:36:19,797 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:36:19,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944428051] [2022-11-25 23:36:19,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944428051] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:36:19,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:36:19,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:36:19,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729959171] [2022-11-25 23:36:19,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:36:19,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:36:19,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:36:19,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:36:19,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:36:19,801 INFO L87 Difference]: Start difference. First operand 45 states and 53 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:36:19,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:36:19,858 INFO L93 Difference]: Finished difference Result 52 states and 62 transitions. [2022-11-25 23:36:19,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:36:19,863 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2022-11-25 23:36:19,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:36:19,865 INFO L225 Difference]: With dead ends: 52 [2022-11-25 23:36:19,865 INFO L226 Difference]: Without dead ends: 50 [2022-11-25 23:36:19,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:36:19,867 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 4 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:36:19,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 122 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:36:19,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-25 23:36:19,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-11-25 23:36:19,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 30 states have (on average 1.6) internal successors, (48), 44 states have internal predecessors, (48), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 23:36:19,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2022-11-25 23:36:19,881 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 9 [2022-11-25 23:36:19,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:36:19,882 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2022-11-25 23:36:19,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:36:19,882 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2022-11-25 23:36:19,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 23:36:19,884 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:36:19,884 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:36:19,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:36:19,885 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-25 23:36:19,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:36:19,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1716719374, now seen corresponding path program 1 times [2022-11-25 23:36:19,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:36:19,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711968179] [2022-11-25 23:36:19,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:36:19,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:36:19,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:36:20,045 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:36:20,045 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:36:20,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711968179] [2022-11-25 23:36:20,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711968179] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:36:20,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:36:20,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:36:20,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820629368] [2022-11-25 23:36:20,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:36:20,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:36:20,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:36:20,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:36:20,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:36:20,052 INFO L87 Difference]: Start difference. First operand 50 states and 60 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:36:20,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:36:20,108 INFO L93 Difference]: Finished difference Result 50 states and 60 transitions. [2022-11-25 23:36:20,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:36:20,109 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-11-25 23:36:20,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:36:20,111 INFO L225 Difference]: With dead ends: 50 [2022-11-25 23:36:20,112 INFO L226 Difference]: Without dead ends: 49 [2022-11-25 23:36:20,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:36:20,117 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 30 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:36:20,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 44 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:36:20,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-25 23:36:20,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-11-25 23:36:20,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 30 states have (on average 1.5666666666666667) internal successors, (47), 43 states have internal predecessors, (47), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 23:36:20,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 59 transitions. [2022-11-25 23:36:20,135 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 59 transitions. Word has length 14 [2022-11-25 23:36:20,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:36:20,135 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 59 transitions. [2022-11-25 23:36:20,136 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:36:20,136 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 59 transitions. [2022-11-25 23:36:20,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 23:36:20,137 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:36:20,137 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:36:20,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:36:20,138 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-25 23:36:20,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:36:20,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1716808465, now seen corresponding path program 1 times [2022-11-25 23:36:20,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:36:20,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892519629] [2022-11-25 23:36:20,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:36:20,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:36:20,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:36:20,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 23:36:20,253 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:36:20,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892519629] [2022-11-25 23:36:20,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892519629] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:36:20,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:36:20,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:36:20,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408711833] [2022-11-25 23:36:20,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:36:20,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:36:20,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:36:20,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:36:20,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:36:20,256 INFO L87 Difference]: Start difference. First operand 49 states and 59 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:36:20,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:36:20,294 INFO L93 Difference]: Finished difference Result 79 states and 94 transitions. [2022-11-25 23:36:20,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:36:20,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-11-25 23:36:20,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:36:20,296 INFO L225 Difference]: With dead ends: 79 [2022-11-25 23:36:20,296 INFO L226 Difference]: Without dead ends: 61 [2022-11-25 23:36:20,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:36:20,297 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 10 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:36:20,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 82 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:36:20,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-25 23:36:20,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 50. [2022-11-25 23:36:20,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 44 states have internal predecessors, (48), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 23:36:20,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2022-11-25 23:36:20,311 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 14 [2022-11-25 23:36:20,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:36:20,311 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2022-11-25 23:36:20,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:36:20,312 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2022-11-25 23:36:20,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 23:36:20,313 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:36:20,313 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:36:20,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 23:36:20,314 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-25 23:36:20,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:36:20,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1713035439, now seen corresponding path program 1 times [2022-11-25 23:36:20,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:36:20,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345783259] [2022-11-25 23:36:20,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:36:20,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:36:20,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:36:20,484 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:36:20,487 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:36:20,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345783259] [2022-11-25 23:36:20,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345783259] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:36:20,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858568933] [2022-11-25 23:36:20,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:36:20,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:36:20,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:36:20,499 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:36:20,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 23:36:20,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:36:20,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 23:36:20,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:36:20,746 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:36:20,746 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:36:20,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858568933] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:36:20,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:36:20,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-25 23:36:20,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954327652] [2022-11-25 23:36:20,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:36:20,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:36:20,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:36:20,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:36:20,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:36:20,752 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:36:20,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:36:20,806 INFO L93 Difference]: Finished difference Result 84 states and 99 transitions. [2022-11-25 23:36:20,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:36:20,806 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-11-25 23:36:20,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:36:20,807 INFO L225 Difference]: With dead ends: 84 [2022-11-25 23:36:20,808 INFO L226 Difference]: Without dead ends: 43 [2022-11-25 23:36:20,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:36:20,809 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 61 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:36:20,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 83 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:36:20,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-25 23:36:20,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-11-25 23:36:20,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 37 states have internal predecessors, (40), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-25 23:36:20,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2022-11-25 23:36:20,818 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 50 transitions. Word has length 14 [2022-11-25 23:36:20,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:36:20,819 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 50 transitions. [2022-11-25 23:36:20,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:36:20,819 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2022-11-25 23:36:20,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-25 23:36:20,820 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:36:20,820 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:36:20,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 23:36:21,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:36:21,027 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-25 23:36:21,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:36:21,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1678693127, now seen corresponding path program 1 times [2022-11-25 23:36:21,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:36:21,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806501202] [2022-11-25 23:36:21,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:36:21,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:36:21,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:36:21,075 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 23:36:21,075 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:36:21,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806501202] [2022-11-25 23:36:21,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806501202] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:36:21,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:36:21,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:36:21,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737196172] [2022-11-25 23:36:21,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:36:21,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:36:21,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:36:21,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:36:21,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:36:21,077 INFO L87 Difference]: Start difference. First operand 43 states and 50 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:36:21,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:36:21,116 INFO L93 Difference]: Finished difference Result 102 states and 118 transitions. [2022-11-25 23:36:21,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:36:21,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-11-25 23:36:21,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:36:21,117 INFO L225 Difference]: With dead ends: 102 [2022-11-25 23:36:21,117 INFO L226 Difference]: Without dead ends: 70 [2022-11-25 23:36:21,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:36:21,119 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 30 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:36:21,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 72 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:36:21,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-25 23:36:21,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 52. [2022-11-25 23:36:21,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 44 states have internal predecessors, (52), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-25 23:36:21,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 62 transitions. [2022-11-25 23:36:21,128 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 62 transitions. Word has length 15 [2022-11-25 23:36:21,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:36:21,129 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 62 transitions. [2022-11-25 23:36:21,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:36:21,129 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 62 transitions. [2022-11-25 23:36:21,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-25 23:36:21,130 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:36:21,130 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:36:21,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 23:36:21,130 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-25 23:36:21,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:36:21,131 INFO L85 PathProgramCache]: Analyzing trace with hash -383560224, now seen corresponding path program 1 times [2022-11-25 23:36:21,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:36:21,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032688668] [2022-11-25 23:36:21,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:36:21,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:36:21,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:36:21,190 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 23:36:21,190 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:36:21,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032688668] [2022-11-25 23:36:21,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032688668] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:36:21,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:36:21,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:36:21,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316515458] [2022-11-25 23:36:21,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:36:21,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:36:21,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:36:21,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:36:21,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:36:21,193 INFO L87 Difference]: Start difference. First operand 52 states and 62 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:36:21,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:36:21,238 INFO L93 Difference]: Finished difference Result 66 states and 81 transitions. [2022-11-25 23:36:21,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:36:21,239 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2022-11-25 23:36:21,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:36:21,240 INFO L225 Difference]: With dead ends: 66 [2022-11-25 23:36:21,240 INFO L226 Difference]: Without dead ends: 64 [2022-11-25 23:36:21,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:36:21,241 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 6 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:36:21,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 109 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:36:21,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-25 23:36:21,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-11-25 23:36:21,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 47 states have (on average 1.3404255319148937) internal successors, (63), 54 states have internal predecessors, (63), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-25 23:36:21,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 77 transitions. [2022-11-25 23:36:21,251 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 77 transitions. Word has length 18 [2022-11-25 23:36:21,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:36:21,252 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 77 transitions. [2022-11-25 23:36:21,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:36:21,252 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 77 transitions. [2022-11-25 23:36:21,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-25 23:36:21,253 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:36:21,253 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:36:21,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 23:36:21,254 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-25 23:36:21,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:36:21,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1509105684, now seen corresponding path program 1 times [2022-11-25 23:36:21,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:36:21,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606802796] [2022-11-25 23:36:21,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:36:21,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:36:21,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:36:21,317 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 23:36:21,317 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:36:21,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606802796] [2022-11-25 23:36:21,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606802796] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:36:21,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:36:21,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:36:21,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667956352] [2022-11-25 23:36:21,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:36:21,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:36:21,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:36:21,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:36:21,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:36:21,320 INFO L87 Difference]: Start difference. First operand 64 states and 77 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 23:36:21,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:36:21,372 INFO L93 Difference]: Finished difference Result 82 states and 96 transitions. [2022-11-25 23:36:21,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:36:21,373 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2022-11-25 23:36:21,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:36:21,374 INFO L225 Difference]: With dead ends: 82 [2022-11-25 23:36:21,374 INFO L226 Difference]: Without dead ends: 67 [2022-11-25 23:36:21,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:36:21,375 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 3 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:36:21,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 113 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:36:21,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-25 23:36:21,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-11-25 23:36:21,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 50 states have (on average 1.32) internal successors, (66), 57 states have internal predecessors, (66), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-25 23:36:21,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 80 transitions. [2022-11-25 23:36:21,385 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 80 transitions. Word has length 22 [2022-11-25 23:36:21,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:36:21,386 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 80 transitions. [2022-11-25 23:36:21,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 23:36:21,386 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 80 transitions. [2022-11-25 23:36:21,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-25 23:36:21,387 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:36:21,388 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:36:21,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 23:36:21,388 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-25 23:36:21,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:36:21,389 INFO L85 PathProgramCache]: Analyzing trace with hash -729165469, now seen corresponding path program 1 times [2022-11-25 23:36:21,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:36:21,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287841881] [2022-11-25 23:36:21,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:36:21,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:36:21,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:36:21,494 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-25 23:36:21,494 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:36:21,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287841881] [2022-11-25 23:36:21,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287841881] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:36:21,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26526796] [2022-11-25 23:36:21,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:36:21,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:36:21,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:36:21,499 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:36:21,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 23:36:21,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:36:21,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 23:36:21,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:36:21,658 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 23:36:21,658 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:36:21,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26526796] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:36:21,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:36:21,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-25 23:36:21,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262177085] [2022-11-25 23:36:21,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:36:21,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:36:21,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:36:21,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:36:21,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:36:21,660 INFO L87 Difference]: Start difference. First operand 67 states and 80 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 23:36:21,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:36:21,713 INFO L93 Difference]: Finished difference Result 92 states and 107 transitions. [2022-11-25 23:36:21,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:36:21,714 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 26 [2022-11-25 23:36:21,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:36:21,715 INFO L225 Difference]: With dead ends: 92 [2022-11-25 23:36:21,715 INFO L226 Difference]: Without dead ends: 53 [2022-11-25 23:36:21,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:36:21,718 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 39 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:36:21,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 83 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:36:21,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-25 23:36:21,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2022-11-25 23:36:21,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 36 states have (on average 1.25) internal successors, (45), 42 states have internal predecessors, (45), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-25 23:36:21,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 55 transitions. [2022-11-25 23:36:21,734 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 55 transitions. Word has length 26 [2022-11-25 23:36:21,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:36:21,736 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 55 transitions. [2022-11-25 23:36:21,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 23:36:21,737 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 55 transitions. [2022-11-25 23:36:21,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-25 23:36:21,738 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:36:21,738 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:36:21,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 23:36:21,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:36:21,951 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-25 23:36:21,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:36:21,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1950108696, now seen corresponding path program 1 times [2022-11-25 23:36:21,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:36:21,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56451120] [2022-11-25 23:36:21,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:36:21,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:36:21,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:36:22,043 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 23:36:22,043 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:36:22,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56451120] [2022-11-25 23:36:22,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56451120] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:36:22,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837540406] [2022-11-25 23:36:22,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:36:22,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:36:22,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:36:22,045 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:36:22,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 23:36:22,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:36:22,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 23:36:22,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:36:22,186 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 23:36:22,186 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:36:22,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1837540406] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:36:22,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:36:22,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-25 23:36:22,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038893904] [2022-11-25 23:36:22,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:36:22,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:36:22,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:36:22,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:36:22,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:36:22,189 INFO L87 Difference]: Start difference. First operand 49 states and 55 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 23:36:22,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:36:22,229 INFO L93 Difference]: Finished difference Result 63 states and 70 transitions. [2022-11-25 23:36:22,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:36:22,230 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2022-11-25 23:36:22,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:36:22,231 INFO L225 Difference]: With dead ends: 63 [2022-11-25 23:36:22,231 INFO L226 Difference]: Without dead ends: 45 [2022-11-25 23:36:22,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:36:22,232 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 24 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:36:22,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 91 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:36:22,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-25 23:36:22,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-25 23:36:22,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 38 states have internal predecessors, (40), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-25 23:36:22,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2022-11-25 23:36:22,239 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 50 transitions. Word has length 25 [2022-11-25 23:36:22,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:36:22,240 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 50 transitions. [2022-11-25 23:36:22,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 23:36:22,240 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2022-11-25 23:36:22,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-25 23:36:22,241 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:36:22,241 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:36:22,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 23:36:22,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:36:22,447 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-25 23:36:22,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:36:22,448 INFO L85 PathProgramCache]: Analyzing trace with hash -323814378, now seen corresponding path program 1 times [2022-11-25 23:36:22,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:36:22,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28397067] [2022-11-25 23:36:22,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:36:22,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:36:22,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:36:22,493 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 23:36:22,493 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:36:22,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28397067] [2022-11-25 23:36:22,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28397067] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:36:22,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:36:22,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:36:22,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568414715] [2022-11-25 23:36:22,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:36:22,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:36:22,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:36:22,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:36:22,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:36:22,495 INFO L87 Difference]: Start difference. First operand 45 states and 50 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 23:36:22,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:36:22,516 INFO L93 Difference]: Finished difference Result 45 states and 50 transitions. [2022-11-25 23:36:22,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:36:22,517 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2022-11-25 23:36:22,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:36:22,518 INFO L225 Difference]: With dead ends: 45 [2022-11-25 23:36:22,518 INFO L226 Difference]: Without dead ends: 43 [2022-11-25 23:36:22,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:36:22,519 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 7 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:36:22,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 55 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:36:22,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-25 23:36:22,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-11-25 23:36:22,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 34 states have (on average 1.1176470588235294) internal successors, (38), 36 states have internal predecessors, (38), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-25 23:36:22,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2022-11-25 23:36:22,525 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 26 [2022-11-25 23:36:22,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:36:22,525 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2022-11-25 23:36:22,526 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 23:36:22,526 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2022-11-25 23:36:22,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 23:36:22,527 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:36:22,527 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:36:22,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 23:36:22,527 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-25 23:36:22,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:36:22,528 INFO L85 PathProgramCache]: Analyzing trace with hash 844212112, now seen corresponding path program 1 times [2022-11-25 23:36:22,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:36:22,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265243090] [2022-11-25 23:36:22,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:36:22,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:36:22,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:36:22,593 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 23:36:22,593 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:36:22,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265243090] [2022-11-25 23:36:22,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265243090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:36:22,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:36:22,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:36:22,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578766539] [2022-11-25 23:36:22,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:36:22,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:36:22,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:36:22,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:36:22,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:36:22,595 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 23:36:22,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:36:22,634 INFO L93 Difference]: Finished difference Result 52 states and 58 transitions. [2022-11-25 23:36:22,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:36:22,634 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2022-11-25 23:36:22,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:36:22,635 INFO L225 Difference]: With dead ends: 52 [2022-11-25 23:36:22,635 INFO L226 Difference]: Without dead ends: 50 [2022-11-25 23:36:22,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:36:22,636 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 3 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:36:22,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 91 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:36:22,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-25 23:36:22,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-11-25 23:36:22,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 40 states have (on average 1.1) internal successors, (44), 42 states have internal predecessors, (44), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 23:36:22,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2022-11-25 23:36:22,643 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 32 [2022-11-25 23:36:22,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:36:22,644 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2022-11-25 23:36:22,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 23:36:22,644 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2022-11-25 23:36:22,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-25 23:36:22,648 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:36:22,648 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2022-11-25 23:36:22,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 23:36:22,649 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-11-25 23:36:22,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:36:22,650 INFO L85 PathProgramCache]: Analyzing trace with hash -881740524, now seen corresponding path program 1 times [2022-11-25 23:36:22,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:36:22,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241289143] [2022-11-25 23:36:22,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:36:22,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:36:22,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:36:22,735 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-25 23:36:22,736 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:36:22,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241289143] [2022-11-25 23:36:22,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241289143] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:36:22,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1833931895] [2022-11-25 23:36:22,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:36:22,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:36:22,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:36:22,738 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:36:22,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 23:36:22,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:36:22,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 23:36:22,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:36:22,909 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 23:36:22,909 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:36:22,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1833931895] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:36:22,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:36:22,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-25 23:36:22,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892119097] [2022-11-25 23:36:22,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:36:22,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:36:22,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:36:22,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:36:22,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:36:22,912 INFO L87 Difference]: Start difference. First operand 50 states and 56 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-25 23:36:22,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:36:22,972 INFO L93 Difference]: Finished difference Result 53 states and 58 transitions. [2022-11-25 23:36:22,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:36:22,973 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 41 [2022-11-25 23:36:22,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:36:22,974 INFO L225 Difference]: With dead ends: 53 [2022-11-25 23:36:22,974 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 23:36:22,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:36:22,975 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 2 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:36:22,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 108 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:36:22,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 23:36:22,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 23:36:22,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:36:22,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 23:36:22,977 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2022-11-25 23:36:22,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:36:22,977 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 23:36:22,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-25 23:36:22,978 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 23:36:22,978 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 23:36:22,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2022-11-25 23:36:22,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2022-11-25 23:36:22,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2022-11-25 23:36:22,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2022-11-25 23:36:22,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2022-11-25 23:36:22,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2022-11-25 23:36:22,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2022-11-25 23:36:22,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2022-11-25 23:36:22,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2022-11-25 23:36:22,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2022-11-25 23:36:22,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2022-11-25 23:36:22,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2022-11-25 23:36:22,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 23:36:23,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-25 23:36:23,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 23:36:23,472 INFO L902 garLoopResultBuilder]: At program point printLineENTRY(lines 1412 1418) the Hoare annotation is: true [2022-11-25 23:36:23,472 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2022-11-25 23:36:23,472 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2022-11-25 23:36:23,472 INFO L902 garLoopResultBuilder]: At program point printIntLineENTRY(lines 1426 1429) the Hoare annotation is: true [2022-11-25 23:36:23,472 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1571) no Hoare annotation was computed. [2022-11-25 23:36:23,473 INFO L895 garLoopResultBuilder]: At program point L1563(line 1563) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648)) (= |ULTIMATE.start_goodB2G_~i~1#1| 0) (<= |ULTIMATE.start_goodB2G_~data~0#1| 2147483646)) [2022-11-25 23:36:23,473 INFO L899 garLoopResultBuilder]: For program point L1563-1(lines 1557 1564) no Hoare annotation was computed. [2022-11-25 23:36:23,473 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1585) no Hoare annotation was computed. [2022-11-25 23:36:23,473 INFO L902 garLoopResultBuilder]: At program point L1605(line 1605) the Hoare annotation is: true [2022-11-25 23:36:23,473 INFO L899 garLoopResultBuilder]: For program point L1605-1(line 1605) no Hoare annotation was computed. [2022-11-25 23:36:23,473 INFO L895 garLoopResultBuilder]: At program point L1572(line 1572) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_goodB2G_~i~1#1|) (= |ULTIMATE.start_goodB2G_~k~0#1| 0) (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648)) (<= |ULTIMATE.start_goodB2G_~data~0#1| 2147483646)) [2022-11-25 23:36:23,474 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1553) no Hoare annotation was computed. [2022-11-25 23:36:23,474 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 23:36:23,474 INFO L899 garLoopResultBuilder]: For program point L1589-2(line 1589) no Hoare annotation was computed. [2022-11-25 23:36:23,474 INFO L899 garLoopResultBuilder]: For program point L1589-3(line 1589) no Hoare annotation was computed. [2022-11-25 23:36:23,474 INFO L895 garLoopResultBuilder]: At program point L1589-4(lines 1589 1595) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_goodB2G_~i~1#1|)) (.cse1 (<= 1 |ULTIMATE.start_goodG2B_~h~0#1|)) (.cse2 (<= 1 |ULTIMATE.start_goodB2G_~k~0#1|)) (.cse3 (= |ULTIMATE.start_goodG2B_~data~1#1| 2)) (.cse4 (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648)))) (or (and .cse0 (<= 1 |ULTIMATE.start_goodG2B_~j~0#1|) .cse1 .cse2 .cse3 .cse4) (and .cse0 (= |ULTIMATE.start_goodG2B_~j~0#1| 0) .cse1 .cse2 .cse3 .cse4))) [2022-11-25 23:36:23,474 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1592) no Hoare annotation was computed. [2022-11-25 23:36:23,474 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1553) no Hoare annotation was computed. [2022-11-25 23:36:23,475 INFO L899 garLoopResultBuilder]: For program point L1557(lines 1557 1564) no Hoare annotation was computed. [2022-11-25 23:36:23,475 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1592) no Hoare annotation was computed. [2022-11-25 23:36:23,475 INFO L902 garLoopResultBuilder]: At program point L1607(line 1607) the Hoare annotation is: true [2022-11-25 23:36:23,475 INFO L902 garLoopResultBuilder]: At program point L1607-1(line 1607) the Hoare annotation is: true [2022-11-25 23:36:23,475 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1589) no Hoare annotation was computed. [2022-11-25 23:36:23,475 INFO L899 garLoopResultBuilder]: For program point L1567-2(line 1567) no Hoare annotation was computed. [2022-11-25 23:36:23,475 INFO L899 garLoopResultBuilder]: For program point L1567-3(line 1567) no Hoare annotation was computed. [2022-11-25 23:36:23,476 INFO L895 garLoopResultBuilder]: At program point L1567-4(lines 1567 1578) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_goodB2G_~i~1#1|)) (.cse1 (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648)))) (or (and .cse0 (= |ULTIMATE.start_goodB2G_~k~0#1| 0) .cse1) (and .cse0 (<= 1 |ULTIMATE.start_goodB2G_~k~0#1|) .cse1))) [2022-11-25 23:36:23,476 INFO L899 garLoopResultBuilder]: For program point L1592(line 1592) no Hoare annotation was computed. [2022-11-25 23:36:23,476 INFO L899 garLoopResultBuilder]: For program point L1592-1(line 1592) no Hoare annotation was computed. [2022-11-25 23:36:23,476 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1589) no Hoare annotation was computed. [2022-11-25 23:36:23,476 INFO L895 garLoopResultBuilder]: At program point L1576(line 1576) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_goodB2G_~i~1#1|) (= |ULTIMATE.start_goodB2G_~k~0#1| 0) (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648))) [2022-11-25 23:36:23,476 INFO L899 garLoopResultBuilder]: For program point L1576-1(lines 1567 1578) no Hoare annotation was computed. [2022-11-25 23:36:23,477 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1567) no Hoare annotation was computed. [2022-11-25 23:36:23,477 INFO L895 garLoopResultBuilder]: At program point L1593(line 1593) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_goodB2G_~i~1#1|) (= |ULTIMATE.start_goodG2B_~j~0#1| 0) (<= 1 |ULTIMATE.start_goodG2B_~h~0#1|) (<= 1 |ULTIMATE.start_goodB2G_~k~0#1|) (= |ULTIMATE.start_goodG2B_~data~1#1| 2) (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648))) [2022-11-25 23:36:23,477 INFO L899 garLoopResultBuilder]: For program point L1593-1(lines 1589 1595) no Hoare annotation was computed. [2022-11-25 23:36:23,477 INFO L899 garLoopResultBuilder]: For program point L1585-3(line 1585) no Hoare annotation was computed. [2022-11-25 23:36:23,477 INFO L899 garLoopResultBuilder]: For program point L1585-4(line 1585) no Hoare annotation was computed. [2022-11-25 23:36:23,477 INFO L895 garLoopResultBuilder]: At program point L1585-5(lines 1585 1588) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_goodB2G_~i~1#1|)) (.cse1 (<= 1 |ULTIMATE.start_goodB2G_~k~0#1|)) (.cse2 (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648)))) (or (and .cse0 (<= 1 |ULTIMATE.start_goodG2B_~h~0#1|) .cse1 (= |ULTIMATE.start_goodG2B_~data~1#1| 2) .cse2) (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_goodG2B_~h~0#1| 0)))) [2022-11-25 23:36:23,477 INFO L899 garLoopResultBuilder]: For program point L1569(lines 1569 1577) no Hoare annotation was computed. [2022-11-25 23:36:23,478 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 23:36:23,478 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1567) no Hoare annotation was computed. [2022-11-25 23:36:23,478 INFO L899 garLoopResultBuilder]: For program point L1553-3(line 1553) no Hoare annotation was computed. [2022-11-25 23:36:23,478 INFO L899 garLoopResultBuilder]: For program point L1553-4(line 1553) no Hoare annotation was computed. [2022-11-25 23:36:23,478 INFO L895 garLoopResultBuilder]: At program point L1553-5(lines 1553 1566) the Hoare annotation is: (let ((.cse0 (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648)))) (or (and (<= 1 |ULTIMATE.start_goodB2G_~i~1#1|) .cse0) (and .cse0 (= |ULTIMATE.start_goodB2G_~i~1#1| 0) (<= |ULTIMATE.start_goodB2G_~data~0#1| 2147483646)))) [2022-11-25 23:36:23,478 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1571) no Hoare annotation was computed. [2022-11-25 23:36:23,478 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1585) no Hoare annotation was computed. [2022-11-25 23:36:23,478 INFO L899 garLoopResultBuilder]: For program point L1571(line 1571) no Hoare annotation was computed. [2022-11-25 23:36:23,479 INFO L899 garLoopResultBuilder]: For program point L1571-1(line 1571) no Hoare annotation was computed. [2022-11-25 23:36:23,482 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:36:23,485 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:36:23,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:36:23 BoogieIcfgContainer [2022-11-25 23:36:23,502 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:36:23,503 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:36:23,503 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:36:23,503 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:36:23,504 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:36:18" (3/4) ... [2022-11-25 23:36:23,507 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 23:36:23,513 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-25 23:36:23,513 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-11-25 23:36:23,519 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-11-25 23:36:23,520 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-25 23:36:23,520 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-25 23:36:23,520 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 23:36:23,560 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 23:36:23,561 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:36:23,561 INFO L158 Benchmark]: Toolchain (without parser) took 6744.10ms. Allocated memory was 197.1MB in the beginning and 257.9MB in the end (delta: 60.8MB). Free memory was 147.3MB in the beginning and 191.9MB in the end (delta: -44.5MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2022-11-25 23:36:23,562 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 138.4MB. Free memory is still 81.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:36:23,562 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1456.48ms. Allocated memory is still 197.1MB. Free memory was 147.3MB in the beginning and 155.2MB in the end (delta: -7.9MB). Peak memory consumption was 64.1MB. Max. memory is 16.1GB. [2022-11-25 23:36:23,562 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.91ms. Allocated memory is still 197.1MB. Free memory was 155.2MB in the beginning and 153.1MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:36:23,563 INFO L158 Benchmark]: Boogie Preprocessor took 42.31ms. Allocated memory is still 197.1MB. Free memory was 153.1MB in the beginning and 151.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:36:23,563 INFO L158 Benchmark]: RCFGBuilder took 543.68ms. Allocated memory is still 197.1MB. Free memory was 151.0MB in the beginning and 133.2MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 23:36:23,564 INFO L158 Benchmark]: TraceAbstraction took 4569.47ms. Allocated memory was 197.1MB in the beginning and 257.9MB in the end (delta: 60.8MB). Free memory was 132.2MB in the beginning and 195.0MB in the end (delta: -62.9MB). Peak memory consumption was 51.6kB. Max. memory is 16.1GB. [2022-11-25 23:36:23,564 INFO L158 Benchmark]: Witness Printer took 58.21ms. Allocated memory is still 257.9MB. Free memory was 195.0MB in the beginning and 191.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 23:36:23,566 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 138.4MB. Free memory is still 81.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1456.48ms. Allocated memory is still 197.1MB. Free memory was 147.3MB in the beginning and 155.2MB in the end (delta: -7.9MB). Peak memory consumption was 64.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.91ms. Allocated memory is still 197.1MB. Free memory was 155.2MB in the beginning and 153.1MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.31ms. Allocated memory is still 197.1MB. Free memory was 153.1MB in the beginning and 151.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 543.68ms. Allocated memory is still 197.1MB. Free memory was 151.0MB in the beginning and 133.2MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 4569.47ms. Allocated memory was 197.1MB in the beginning and 257.9MB in the end (delta: 60.8MB). Free memory was 132.2MB in the beginning and 195.0MB in the end (delta: -62.9MB). Peak memory consumption was 51.6kB. Max. memory is 16.1GB. * Witness Printer took 58.21ms. Allocated memory is still 257.9MB. Free memory was 195.0MB in the beginning and 191.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1553]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1553]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1571]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1571]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1567]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1567]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1585]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1585]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1592]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1592]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1589]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1589]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 47 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 4.5s, OverallIterations: 13, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 246 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 226 mSDsluCounter, 1142 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 658 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 368 IncrementalHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 484 mSDtfsCounter, 368 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 154 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=8, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 40 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 35 PreInvPairs, 51 NumberOfFragments, 189 HoareAnnotationTreeSize, 35 FomulaSimplifications, 47 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 112 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 371 NumberOfCodeBlocks, 371 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 354 ConstructedInterpolants, 0 QuantifiedInterpolants, 534 SizeOfPredicates, 4 NumberOfNonLiveVariables, 688 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 17 InterpolantComputations, 13 PerfectInterpolantSequences, 86/90 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold - InvariantResult [Line: 1567]: Loop Invariant Derived loop invariant: ((1 <= i && k == 0) && 0 <= data + 2147483648) || ((1 <= i && 1 <= k) && 0 <= data + 2147483648) - InvariantResult [Line: 1607]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1589]: Loop Invariant Derived loop invariant: (((((1 <= i && 1 <= j) && 1 <= h) && 1 <= k) && data == 2) && 0 <= data + 2147483648) || (((((1 <= i && j == 0) && 1 <= h) && 1 <= k) && data == 2) && 0 <= data + 2147483648) - InvariantResult [Line: 1553]: Loop Invariant Derived loop invariant: (1 <= i && 0 <= data + 2147483648) || ((0 <= data + 2147483648 && i == 0) && data <= 2147483646) - InvariantResult [Line: 1585]: Loop Invariant Derived loop invariant: ((((1 <= i && 1 <= h) && 1 <= k) && data == 2) && 0 <= data + 2147483648) || (((1 <= i && 1 <= k) && 0 <= data + 2147483648) && h == 0) RESULT: Ultimate proved your program to be correct! [2022-11-25 23:36:23,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6956a84f-f76f-4049-8a67-e5ba3e557a6c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE