./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-restricted-15/java_Continue1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-restricted-15/java_Continue1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a40571433f24a7b15b183b3095b5da43803830f9d641dfe0ea4f99a62ff28fda --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 12:44:39,702 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 12:44:39,704 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 12:44:39,730 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 12:44:39,731 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 12:44:39,732 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 12:44:39,733 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 12:44:39,735 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 12:44:39,736 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 12:44:39,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 12:44:39,738 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 12:44:39,747 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 12:44:39,747 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 12:44:39,748 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 12:44:39,749 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 12:44:39,750 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 12:44:39,751 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 12:44:39,751 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 12:44:39,753 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 12:44:39,755 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 12:44:39,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 12:44:39,757 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 12:44:39,758 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 12:44:39,759 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 12:44:39,768 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 12:44:39,768 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 12:44:39,769 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 12:44:39,769 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 12:44:39,770 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 12:44:39,771 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 12:44:39,771 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 12:44:39,771 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 12:44:39,772 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 12:44:39,773 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 12:44:39,774 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 12:44:39,774 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 12:44:39,774 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 12:44:39,774 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 12:44:39,775 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 12:44:39,775 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 12:44:39,776 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 12:44:39,777 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 12:44:39,797 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 12:44:39,798 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 12:44:39,798 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 12:44:39,798 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 12:44:39,799 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 12:44:39,799 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 12:44:39,799 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 12:44:39,799 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 12:44:39,799 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 12:44:39,800 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 12:44:39,800 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 12:44:39,800 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 12:44:39,800 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 12:44:39,800 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 12:44:39,800 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 12:44:39,801 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 12:44:39,801 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 12:44:39,801 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 12:44:39,801 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 12:44:39,802 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 12:44:39,802 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 12:44:39,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 12:44:39,802 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 12:44:39,802 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 12:44:39,802 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 12:44:39,803 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 12:44:39,803 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 12:44:39,803 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 12:44:39,803 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 12:44:39,803 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 12:44:39,803 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 12:44:39,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:44:39,804 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 12:44:39,804 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 12:44:39,804 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 12:44:39,804 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 12:44:39,804 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 12:44:39,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 12:44:39,805 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 12:44:39,805 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 12:44:39,805 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_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a40571433f24a7b15b183b3095b5da43803830f9d641dfe0ea4f99a62ff28fda [2022-12-14 12:44:39,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 12:44:40,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 12:44:40,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 12:44:40,014 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 12:44:40,015 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 12:44:40,016 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/termination-restricted-15/java_Continue1.c [2022-12-14 12:44:42,670 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 12:44:42,802 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 12:44:42,802 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/sv-benchmarks/c/termination-restricted-15/java_Continue1.c [2022-12-14 12:44:42,806 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/data/b4c87ee12/bbacff477aa547f998455366c3ae1d77/FLAGd986b0806 [2022-12-14 12:44:42,817 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/data/b4c87ee12/bbacff477aa547f998455366c3ae1d77 [2022-12-14 12:44:42,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 12:44:42,820 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 12:44:42,821 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 12:44:42,821 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 12:44:42,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 12:44:42,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:44:42" (1/1) ... [2022-12-14 12:44:42,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3db8b114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:42, skipping insertion in model container [2022-12-14 12:44:42,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:44:42" (1/1) ... [2022-12-14 12:44:42,830 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 12:44:42,841 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 12:44:42,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:44:42,948 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 12:44:42,960 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:44:42,973 INFO L208 MainTranslator]: Completed translation [2022-12-14 12:44:42,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:42 WrapperNode [2022-12-14 12:44:42,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 12:44:42,975 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 12:44:42,975 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 12:44:42,975 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 12:44:42,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:42" (1/1) ... [2022-12-14 12:44:42,986 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:42" (1/1) ... [2022-12-14 12:44:43,001 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2022-12-14 12:44:43,001 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 12:44:43,002 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 12:44:43,002 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 12:44:43,002 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 12:44:43,010 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:42" (1/1) ... [2022-12-14 12:44:43,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:42" (1/1) ... [2022-12-14 12:44:43,011 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:42" (1/1) ... [2022-12-14 12:44:43,011 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:42" (1/1) ... [2022-12-14 12:44:43,013 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:42" (1/1) ... [2022-12-14 12:44:43,016 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:42" (1/1) ... [2022-12-14 12:44:43,017 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:42" (1/1) ... [2022-12-14 12:44:43,018 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:42" (1/1) ... [2022-12-14 12:44:43,019 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 12:44:43,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 12:44:43,020 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 12:44:43,020 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 12:44:43,021 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:42" (1/1) ... [2022-12-14 12:44:43,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:44:43,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:44:43,049 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 12:44:43,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 12:44:43,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 12:44:43,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 12:44:43,165 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 12:44:43,167 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 12:44:43,231 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 12:44:43,248 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 12:44:43,248 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 12:44:43,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:44:43 BoogieIcfgContainer [2022-12-14 12:44:43,251 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 12:44:43,253 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 12:44:43,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 12:44:43,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 12:44:43,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 12:44:42" (1/3) ... [2022-12-14 12:44:43,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bd47807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:44:43, skipping insertion in model container [2022-12-14 12:44:43,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:42" (2/3) ... [2022-12-14 12:44:43,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bd47807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:44:43, skipping insertion in model container [2022-12-14 12:44:43,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:44:43" (3/3) ... [2022-12-14 12:44:43,260 INFO L112 eAbstractionObserver]: Analyzing ICFG java_Continue1.c [2022-12-14 12:44:43,278 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 12:44:43,278 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-14 12:44:43,314 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:44:43,319 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;@75c314b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:44:43,320 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-14 12:44:43,323 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:43,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 12:44:43,327 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:44:43,328 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 12:44:43,328 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 12:44:43,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:44:43,332 INFO L85 PathProgramCache]: Analyzing trace with hash 62818, now seen corresponding path program 1 times [2022-12-14 12:44:43,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:44:43,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888540796] [2022-12-14 12:44:43,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:44:43,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:44:43,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:44:43,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:44:43,444 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:44:43,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888540796] [2022-12-14 12:44:43,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888540796] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:44:43,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:44:43,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 12:44:43,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274973146] [2022-12-14 12:44:43,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:44:43,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:44:43,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:44:43,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:44:43,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:44:43,482 INFO L87 Difference]: Start difference. First operand has 12 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:43,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:44:43,510 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2022-12-14 12:44:43,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:44:43,512 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 12:44:43,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:44:43,518 INFO L225 Difference]: With dead ends: 12 [2022-12-14 12:44:43,518 INFO L226 Difference]: Without dead ends: 10 [2022-12-14 12:44:43,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:44:43,522 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:44:43,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 4 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:44:43,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-12-14 12:44:43,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-12-14 12:44:43,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:43,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2022-12-14 12:44:43,549 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 3 [2022-12-14 12:44:43,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:44:43,549 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2022-12-14 12:44:43,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:43,550 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2022-12-14 12:44:43,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 12:44:43,550 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:44:43,550 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 12:44:43,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 12:44:43,550 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 12:44:43,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:44:43,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1947403, now seen corresponding path program 1 times [2022-12-14 12:44:43,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:44:43,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392503292] [2022-12-14 12:44:43,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:44:43,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:44:43,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:44:43,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:44:43,577 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:44:43,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392503292] [2022-12-14 12:44:43,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392503292] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:44:43,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:44:43,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 12:44:43,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554694590] [2022-12-14 12:44:43,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:44:43,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:44:43,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:44:43,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:44:43,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:44:43,581 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:43,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:44:43,597 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2022-12-14 12:44:43,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:44:43,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 12:44:43,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:44:43,598 INFO L225 Difference]: With dead ends: 14 [2022-12-14 12:44:43,598 INFO L226 Difference]: Without dead ends: 13 [2022-12-14 12:44:43,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:44:43,600 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:44:43,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:44:43,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-12-14 12:44:43,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-12-14 12:44:43,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.4) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:43,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-12-14 12:44:43,604 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 4 [2022-12-14 12:44:43,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:44:43,604 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-12-14 12:44:43,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:43,604 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-12-14 12:44:43,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 12:44:43,605 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:44:43,605 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 12:44:43,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 12:44:43,605 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 12:44:43,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:44:43,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1871455885, now seen corresponding path program 1 times [2022-12-14 12:44:43,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:44:43,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968024985] [2022-12-14 12:44:43,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:44:43,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:44:43,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:44:43,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:44:43,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:44:43,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968024985] [2022-12-14 12:44:43,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968024985] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:44:43,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:44:43,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 12:44:43,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138367384] [2022-12-14 12:44:43,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:44:43,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:44:43,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:44:43,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:44:43,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:44:43,642 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:43,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:44:43,651 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2022-12-14 12:44:43,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:44:43,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-14 12:44:43,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:44:43,652 INFO L225 Difference]: With dead ends: 13 [2022-12-14 12:44:43,652 INFO L226 Difference]: Without dead ends: 12 [2022-12-14 12:44:43,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:44:43,653 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 4 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:44:43,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 6 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:44:43,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-12-14 12:44:43,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-12-14 12:44:43,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:43,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2022-12-14 12:44:43,657 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 6 [2022-12-14 12:44:43,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:44:43,657 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-12-14 12:44:43,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:43,657 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2022-12-14 12:44:43,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 12:44:43,658 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:44:43,658 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:44:43,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 12:44:43,658 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 12:44:43,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:44:43,659 INFO L85 PathProgramCache]: Analyzing trace with hash -2114409655, now seen corresponding path program 1 times [2022-12-14 12:44:43,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:44:43,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11612564] [2022-12-14 12:44:43,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:44:43,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:44:43,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:44:43,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:44:43,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:44:43,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11612564] [2022-12-14 12:44:43,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11612564] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:44:43,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:44:43,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:44:43,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979875786] [2022-12-14 12:44:43,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:44:43,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 12:44:43,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:44:43,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 12:44:43,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 12:44:43,702 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:43,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:44:43,728 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2022-12-14 12:44:43,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 12:44:43,729 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-14 12:44:43,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:44:43,729 INFO L225 Difference]: With dead ends: 24 [2022-12-14 12:44:43,729 INFO L226 Difference]: Without dead ends: 16 [2022-12-14 12:44:43,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 12:44:43,731 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 3 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:44:43,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 8 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:44:43,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-12-14 12:44:43,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-12-14 12:44:43,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:43,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2022-12-14 12:44:43,734 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 7 [2022-12-14 12:44:43,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:44:43,734 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2022-12-14 12:44:43,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:43,735 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2022-12-14 12:44:43,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 12:44:43,735 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:44:43,735 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-12-14 12:44:43,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 12:44:43,736 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 12:44:43,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:44:43,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1231532594, now seen corresponding path program 1 times [2022-12-14 12:44:43,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:44:43,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493162570] [2022-12-14 12:44:43,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:44:43,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:44:43,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:44:43,791 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 12:44:43,791 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:44:43,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493162570] [2022-12-14 12:44:43,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493162570] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:44:43,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:44:43,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 12:44:43,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710700156] [2022-12-14 12:44:43,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:44:43,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:44:43,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:44:43,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:44:43,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:44:43,794 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:43,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:44:43,805 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2022-12-14 12:44:43,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:44:43,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-12-14 12:44:43,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:44:43,806 INFO L225 Difference]: With dead ends: 24 [2022-12-14 12:44:43,806 INFO L226 Difference]: Without dead ends: 23 [2022-12-14 12:44:43,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:44:43,807 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 1 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:44:43,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 13 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:44:43,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-12-14 12:44:43,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2022-12-14 12:44:43,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 20 states have (on average 1.25) internal successors, (25), 21 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:43,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-12-14 12:44:43,813 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 11 [2022-12-14 12:44:43,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:44:43,813 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-12-14 12:44:43,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:43,814 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-12-14 12:44:43,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 12:44:43,814 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:44:43,814 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1] [2022-12-14 12:44:43,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 12:44:43,815 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 12:44:43,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:44:43,815 INFO L85 PathProgramCache]: Analyzing trace with hash 477124801, now seen corresponding path program 1 times [2022-12-14 12:44:43,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:44:43,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615845320] [2022-12-14 12:44:43,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:44:43,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:44:43,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:44:43,847 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 12:44:43,847 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:44:43,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615845320] [2022-12-14 12:44:43,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615845320] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:44:43,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:44:43,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 12:44:43,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325932167] [2022-12-14 12:44:43,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:44:43,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:44:43,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:44:43,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:44:43,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:44:43,850 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:43,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:44:43,864 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-12-14 12:44:43,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:44:43,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-12-14 12:44:43,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:44:43,866 INFO L225 Difference]: With dead ends: 26 [2022-12-14 12:44:43,866 INFO L226 Difference]: Without dead ends: 25 [2022-12-14 12:44:43,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:44:43,867 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:44:43,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:44:43,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-12-14 12:44:43,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 22. [2022-12-14 12:44:43,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 20 states have (on average 1.2) internal successors, (24), 21 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:43,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2022-12-14 12:44:43,873 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 12 [2022-12-14 12:44:43,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:44:43,873 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2022-12-14 12:44:43,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:43,873 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2022-12-14 12:44:43,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 12:44:43,874 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:44:43,874 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1] [2022-12-14 12:44:43,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 12:44:43,874 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 12:44:43,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:44:43,875 INFO L85 PathProgramCache]: Analyzing trace with hash -976824643, now seen corresponding path program 1 times [2022-12-14 12:44:43,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:44:43,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626394795] [2022-12-14 12:44:43,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:44:43,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:44:43,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:44:43,907 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 12:44:43,908 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:44:43,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626394795] [2022-12-14 12:44:43,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626394795] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:44:43,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:44:43,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 12:44:43,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829549268] [2022-12-14 12:44:43,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:44:43,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:44:43,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:44:43,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:44:43,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:44:43,910 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:43,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:44:43,921 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2022-12-14 12:44:43,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:44:43,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-12-14 12:44:43,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:44:43,922 INFO L225 Difference]: With dead ends: 22 [2022-12-14 12:44:43,922 INFO L226 Difference]: Without dead ends: 21 [2022-12-14 12:44:43,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:44:43,923 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:44:43,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:44:43,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-12-14 12:44:43,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2022-12-14 12:44:43,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:43,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2022-12-14 12:44:43,929 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 14 [2022-12-14 12:44:43,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:44:43,929 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2022-12-14 12:44:43,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:43,929 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-12-14 12:44:43,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 12:44:43,930 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:44:43,930 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1] [2022-12-14 12:44:43,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 12:44:43,930 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 12:44:43,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:44:43,931 INFO L85 PathProgramCache]: Analyzing trace with hash 2115507799, now seen corresponding path program 1 times [2022-12-14 12:44:43,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:44:43,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775054196] [2022-12-14 12:44:43,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:44:43,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:44:43,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:44:43,982 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 12:44:43,983 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:44:43,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775054196] [2022-12-14 12:44:43,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775054196] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:44:43,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [920814709] [2022-12-14 12:44:43,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:44:43,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:44:43,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:44:43,985 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:44:43,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 12:44:44,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:44:44,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 12:44:44,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:44:44,080 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 12:44:44,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:44:44,120 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 12:44:44,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [920814709] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:44:44,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1786278605] [2022-12-14 12:44:44,133 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-12-14 12:44:44,133 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:44:44,136 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:44:44,141 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:44:44,141 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:44:44,309 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:44:44,354 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '432#(and (< 10 |ULTIMATE.start_main_~i~0#1|) (< 2147483646 |ULTIMATE.start_main_~c~0#1|))' at error location [2022-12-14 12:44:44,355 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 12:44:44,355 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:44:44,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 4, 4] total 9 [2022-12-14 12:44:44,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319919423] [2022-12-14 12:44:44,355 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 12:44:44,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 12:44:44,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:44:44,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 12:44:44,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2022-12-14 12:44:44,357 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 10 states, 10 states have (on average 3.9) internal successors, (39), 9 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:44,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:44:44,453 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2022-12-14 12:44:44,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 12:44:44,454 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 9 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-12-14 12:44:44,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:44:44,454 INFO L225 Difference]: With dead ends: 55 [2022-12-14 12:44:44,454 INFO L226 Difference]: Without dead ends: 46 [2022-12-14 12:44:44,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2022-12-14 12:44:44,456 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 13 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:44:44,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 13 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:44:44,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-12-14 12:44:44,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 40. [2022-12-14 12:44:44,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.1025641025641026) internal successors, (43), 39 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:44,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2022-12-14 12:44:44,463 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 17 [2022-12-14 12:44:44,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:44:44,463 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2022-12-14 12:44:44,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 9 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:44,463 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2022-12-14 12:44:44,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-12-14 12:44:44,464 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:44:44,464 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 3, 3, 2, 1, 1] [2022-12-14 12:44:44,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 12:44:44,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-14 12:44:44,666 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 12:44:44,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:44:44,667 INFO L85 PathProgramCache]: Analyzing trace with hash -2049853644, now seen corresponding path program 2 times [2022-12-14 12:44:44,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:44:44,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4223615] [2022-12-14 12:44:44,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:44:44,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:44:44,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:44:44,864 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 48 proven. 60 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 12:44:44,864 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:44:44,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4223615] [2022-12-14 12:44:44,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4223615] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:44:44,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159219357] [2022-12-14 12:44:44,865 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 12:44:44,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:44:44,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:44:44,866 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:44:44,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 12:44:44,900 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-14 12:44:44,900 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 12:44:44,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 12:44:44,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:44:44,962 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-14 12:44:44,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:44:45,023 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-14 12:44:45,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159219357] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:44:45,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2135063283] [2022-12-14 12:44:45,026 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-12-14 12:44:45,026 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:44:45,026 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:44:45,026 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:44:45,027 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:44:45,121 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:44:45,166 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '808#(and (< 10 |ULTIMATE.start_main_~i~0#1|) (< 2147483646 |ULTIMATE.start_main_~c~0#1|))' at error location [2022-12-14 12:44:45,167 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 12:44:45,167 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:44:45,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 3, 3] total 14 [2022-12-14 12:44:45,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75980225] [2022-12-14 12:44:45,167 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 12:44:45,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-14 12:44:45,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:44:45,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-14 12:44:45,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2022-12-14 12:44:45,169 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand has 15 states, 15 states have (on average 4.8) internal successors, (72), 14 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:45,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:44:45,265 INFO L93 Difference]: Finished difference Result 86 states and 100 transitions. [2022-12-14 12:44:45,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 12:44:45,266 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.8) internal successors, (72), 14 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-12-14 12:44:45,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:44:45,266 INFO L225 Difference]: With dead ends: 86 [2022-12-14 12:44:45,266 INFO L226 Difference]: Without dead ends: 71 [2022-12-14 12:44:45,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=185, Invalid=517, Unknown=0, NotChecked=0, Total=702 [2022-12-14 12:44:45,268 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:44:45,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 35 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:44:45,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-12-14 12:44:45,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 68. [2022-12-14 12:44:45,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.1194029850746268) internal successors, (75), 67 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:45,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 75 transitions. [2022-12-14 12:44:45,276 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 75 transitions. Word has length 39 [2022-12-14 12:44:45,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:44:45,277 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 75 transitions. [2022-12-14 12:44:45,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.8) internal successors, (72), 14 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:45,277 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 75 transitions. [2022-12-14 12:44:45,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-14 12:44:45,278 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:44:45,278 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 7, 7, 6, 6, 1, 1] [2022-12-14 12:44:45,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 12:44:45,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:44:45,480 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 12:44:45,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:44:45,482 INFO L85 PathProgramCache]: Analyzing trace with hash 983389789, now seen corresponding path program 3 times [2022-12-14 12:44:45,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:44:45,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812194390] [2022-12-14 12:44:45,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:44:45,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:44:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:44:45,700 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 168 proven. 84 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-12-14 12:44:45,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:44:45,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812194390] [2022-12-14 12:44:45,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812194390] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:44:45,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826301269] [2022-12-14 12:44:45,701 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 12:44:45,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:44:45,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:44:45,702 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:44:45,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 12:44:45,742 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 12:44:45,742 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 12:44:45,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 12:44:45,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:44:45,790 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 168 proven. 84 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-12-14 12:44:45,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:44:45,868 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 168 proven. 84 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-12-14 12:44:45,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826301269] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:44:45,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [929932814] [2022-12-14 12:44:45,871 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-12-14 12:44:45,871 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:44:45,871 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:44:45,871 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:44:45,871 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:44:45,945 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:44:45,988 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1419#(and (< 10 |ULTIMATE.start_main_~i~0#1|) (< 2147483646 |ULTIMATE.start_main_~c~0#1|))' at error location [2022-12-14 12:44:45,989 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 12:44:45,989 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:44:45,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 12 [2022-12-14 12:44:45,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11290498] [2022-12-14 12:44:45,989 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 12:44:45,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 12:44:45,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:44:45,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 12:44:45,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2022-12-14 12:44:45,991 INFO L87 Difference]: Start difference. First operand 68 states and 75 transitions. Second operand has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:46,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:44:46,039 INFO L93 Difference]: Finished difference Result 141 states and 158 transitions. [2022-12-14 12:44:46,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 12:44:46,040 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-12-14 12:44:46,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:44:46,041 INFO L225 Difference]: With dead ends: 141 [2022-12-14 12:44:46,041 INFO L226 Difference]: Without dead ends: 102 [2022-12-14 12:44:46,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 187 SyntacticMatches, 5 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2022-12-14 12:44:46,042 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:44:46,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 13 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:44:46,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-12-14 12:44:46,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 84. [2022-12-14 12:44:46,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 83 states have (on average 1.0963855421686748) internal successors, (91), 83 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:46,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 91 transitions. [2022-12-14 12:44:46,048 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 91 transitions. Word has length 67 [2022-12-14 12:44:46,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:44:46,048 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 91 transitions. [2022-12-14 12:44:46,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:46,049 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 91 transitions. [2022-12-14 12:44:46,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-12-14 12:44:46,050 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:44:46,050 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 10, 7, 7, 6, 1, 1] [2022-12-14 12:44:46,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 12:44:46,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:44:46,251 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 12:44:46,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:44:46,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1463932047, now seen corresponding path program 4 times [2022-12-14 12:44:46,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:44:46,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695491540] [2022-12-14 12:44:46,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:44:46,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:44:46,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:44:46,461 INFO L134 CoverageAnalysis]: Checked inductivity of 586 backedges. 0 proven. 366 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2022-12-14 12:44:46,462 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:44:46,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695491540] [2022-12-14 12:44:46,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695491540] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:44:46,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795546842] [2022-12-14 12:44:46,462 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-14 12:44:46,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:44:46,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:44:46,463 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:44:46,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 12:44:46,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:44:46,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 12:44:46,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:44:46,593 INFO L134 CoverageAnalysis]: Checked inductivity of 586 backedges. 0 proven. 366 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2022-12-14 12:44:46,593 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:44:46,725 INFO L134 CoverageAnalysis]: Checked inductivity of 586 backedges. 0 proven. 366 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2022-12-14 12:44:46,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795546842] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:44:46,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1663463982] [2022-12-14 12:44:46,727 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-12-14 12:44:46,727 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:44:46,727 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:44:46,727 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:44:46,727 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:44:46,795 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:44:46,837 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2203#(and (< 10 |ULTIMATE.start_main_~i~0#1|) (< 2147483646 |ULTIMATE.start_main_~c~0#1|))' at error location [2022-12-14 12:44:46,837 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 12:44:46,837 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:44:46,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2022-12-14 12:44:46,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64497802] [2022-12-14 12:44:46,838 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 12:44:46,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-14 12:44:46,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:44:46,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-14 12:44:46,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=283, Unknown=0, NotChecked=0, Total=420 [2022-12-14 12:44:46,840 INFO L87 Difference]: Start difference. First operand 84 states and 91 transitions. Second operand has 16 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:46,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:44:46,880 INFO L93 Difference]: Finished difference Result 133 states and 155 transitions. [2022-12-14 12:44:46,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-14 12:44:46,881 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-12-14 12:44:46,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:44:46,882 INFO L225 Difference]: With dead ends: 133 [2022-12-14 12:44:46,882 INFO L226 Difference]: Without dead ends: 132 [2022-12-14 12:44:46,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=283, Unknown=0, NotChecked=0, Total=420 [2022-12-14 12:44:46,883 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 24 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:44:46,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 76 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:44:46,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-12-14 12:44:46,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2022-12-14 12:44:46,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 131 states have (on average 1.1221374045801527) internal successors, (147), 131 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:46,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 147 transitions. [2022-12-14 12:44:46,892 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 147 transitions. Word has length 83 [2022-12-14 12:44:46,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:44:46,893 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 147 transitions. [2022-12-14 12:44:46,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:46,893 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 147 transitions. [2022-12-14 12:44:46,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-12-14 12:44:46,894 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:44:46,894 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 15, 15, 14, 10, 1, 1] [2022-12-14 12:44:46,899 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 12:44:47,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-12-14 12:44:47,095 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 12:44:47,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:44:47,096 INFO L85 PathProgramCache]: Analyzing trace with hash 2099695801, now seen corresponding path program 5 times [2022-12-14 12:44:47,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:44:47,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179047989] [2022-12-14 12:44:47,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:44:47,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:44:47,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:44:47,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1410 backedges. 0 proven. 1190 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2022-12-14 12:44:47,458 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:44:47,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179047989] [2022-12-14 12:44:47,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179047989] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:44:47,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454766027] [2022-12-14 12:44:47,459 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 12:44:47,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:44:47,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:44:47,460 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:44:47,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 12:44:47,505 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2022-12-14 12:44:47,505 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 12:44:47,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 12:44:47,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:44:47,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1410 backedges. 978 proven. 0 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2022-12-14 12:44:47,659 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:44:47,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [454766027] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:44:47,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 12:44:47,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [15] total 27 [2022-12-14 12:44:47,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640235533] [2022-12-14 12:44:47,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:44:47,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 12:44:47,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:44:47,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 12:44:47,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=501, Unknown=0, NotChecked=0, Total=702 [2022-12-14 12:44:47,661 INFO L87 Difference]: Start difference. First operand 132 states and 147 transitions. Second operand has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:47,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:44:47,723 INFO L93 Difference]: Finished difference Result 187 states and 211 transitions. [2022-12-14 12:44:47,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 12:44:47,724 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2022-12-14 12:44:47,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:44:47,724 INFO L225 Difference]: With dead ends: 187 [2022-12-14 12:44:47,724 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 12:44:47,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=201, Invalid=501, Unknown=0, NotChecked=0, Total=702 [2022-12-14 12:44:47,725 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:44:47,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:44:47,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 12:44:47,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 12:44:47,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:47,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 12:44:47,726 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 131 [2022-12-14 12:44:47,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:44:47,726 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 12:44:47,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:44:47,726 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 12:44:47,726 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 12:44:47,728 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-12-14 12:44:47,728 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-12-14 12:44:47,728 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-12-14 12:44:47,728 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-12-14 12:44:47,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 12:44:47,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-14 12:44:47,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 12:44:48,363 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2022-12-14 12:44:48,363 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 12:44:48,363 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2022-12-14 12:44:48,363 INFO L899 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2022-12-14 12:44:48,363 INFO L899 garLoopResultBuilder]: For program point L11-1(line 11) no Hoare annotation was computed. [2022-12-14 12:44:48,363 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 12:44:48,363 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2022-12-14 12:44:48,364 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2022-12-14 12:44:48,364 INFO L899 garLoopResultBuilder]: For program point L14(line 14) no Hoare annotation was computed. [2022-12-14 12:44:48,364 INFO L899 garLoopResultBuilder]: For program point L14-1(line 14) no Hoare annotation was computed. [2022-12-14 12:44:48,364 INFO L899 garLoopResultBuilder]: For program point L12(lines 12 15) no Hoare annotation was computed. [2022-12-14 12:44:48,364 INFO L895 garLoopResultBuilder]: At program point L12-2(lines 10 16) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~c~0#1|)) (.cse1 (<= 0 |ULTIMATE.start_main_~i~0#1|))) (or (and (< |ULTIMATE.start_main_~c~0#1| 2147483641) (<= 17 |ULTIMATE.start_main_~i~0#1|) .cse0 .cse1) (and (<= 12 |ULTIMATE.start_main_~i~0#1|) .cse0 .cse1 (<= |ULTIMATE.start_main_~c~0#1| 2)) (and .cse0 (<= |ULTIMATE.start_main_~c~0#1| 0) .cse1) (and (<= |ULTIMATE.start_main_~c~0#1| 1) (not (<= |ULTIMATE.start_main_~i~0#1| 10)) .cse0 .cse1) (and (<= 13 |ULTIMATE.start_main_~i~0#1|) .cse0 .cse1 (<= |ULTIMATE.start_main_~c~0#1| 3)) (and (<= 18 |ULTIMATE.start_main_~i~0#1|) .cse0 .cse1 (< |ULTIMATE.start_main_~c~0#1| 2147483642)) (and .cse0 .cse1 (<= |ULTIMATE.start_main_~c~0#1| 6) (<= 16 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~c~0#1| 5) (<= 15 |ULTIMATE.start_main_~i~0#1|) .cse0 .cse1) (and .cse0 .cse1 (< |ULTIMATE.start_main_~c~0#1| 2147483644) (<= 20 |ULTIMATE.start_main_~i~0#1|)) (and (< |ULTIMATE.start_main_~c~0#1| 2147483643) (<= 19 |ULTIMATE.start_main_~i~0#1|) .cse0 .cse1) (and (<= |ULTIMATE.start_main_~c~0#1| 4) (<= 14 |ULTIMATE.start_main_~i~0#1|) .cse0 .cse1))) [2022-12-14 12:44:48,367 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:44:48,369 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 12:44:48,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 12:44:48 BoogieIcfgContainer [2022-12-14 12:44:48,379 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 12:44:48,380 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 12:44:48,380 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 12:44:48,380 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 12:44:48,380 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:44:43" (3/4) ... [2022-12-14 12:44:48,382 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 12:44:48,388 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-12-14 12:44:48,388 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-14 12:44:48,388 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-14 12:44:48,407 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 12:44:48,407 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 12:44:48,407 INFO L158 Benchmark]: Toolchain (without parser) took 5587.54ms. Allocated memory is still 157.3MB. Free memory was 99.6MB in the beginning and 64.3MB in the end (delta: 35.3MB). Peak memory consumption was 37.2MB. Max. memory is 16.1GB. [2022-12-14 12:44:48,407 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 102.8MB. Free memory is still 68.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 12:44:48,407 INFO L158 Benchmark]: CACSL2BoogieTranslator took 153.09ms. Allocated memory is still 157.3MB. Free memory was 99.1MB in the beginning and 90.1MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 12:44:48,408 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.62ms. Allocated memory is still 157.3MB. Free memory was 90.1MB in the beginning and 88.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 12:44:48,408 INFO L158 Benchmark]: Boogie Preprocessor took 17.17ms. Allocated memory is still 157.3MB. Free memory was 88.6MB in the beginning and 87.9MB in the end (delta: 697.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 12:44:48,408 INFO L158 Benchmark]: RCFGBuilder took 231.36ms. Allocated memory is still 157.3MB. Free memory was 87.9MB in the beginning and 78.5MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 12:44:48,408 INFO L158 Benchmark]: TraceAbstraction took 5125.83ms. Allocated memory is still 157.3MB. Free memory was 77.6MB in the beginning and 66.4MB in the end (delta: 11.2MB). Peak memory consumption was 40.5MB. Max. memory is 16.1GB. [2022-12-14 12:44:48,408 INFO L158 Benchmark]: Witness Printer took 27.18ms. Allocated memory is still 157.3MB. Free memory was 66.4MB in the beginning and 64.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 12:44:48,410 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 102.8MB. Free memory is still 68.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 153.09ms. Allocated memory is still 157.3MB. Free memory was 99.1MB in the beginning and 90.1MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.62ms. Allocated memory is still 157.3MB. Free memory was 90.1MB in the beginning and 88.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.17ms. Allocated memory is still 157.3MB. Free memory was 88.6MB in the beginning and 87.9MB in the end (delta: 697.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 231.36ms. Allocated memory is still 157.3MB. Free memory was 87.9MB in the beginning and 78.5MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 5125.83ms. Allocated memory is still 157.3MB. Free memory was 77.6MB in the beginning and 66.4MB in the end (delta: 11.2MB). Peak memory consumption was 40.5MB. Max. memory is 16.1GB. * Witness Printer took 27.18ms. Allocated memory is still 157.3MB. Free memory was 66.4MB in the beginning and 64.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: 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 1 procedures, 12 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 5.1s, OverallIterations: 12, TraceHistogramMax: 25, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 66 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 66 mSDsluCounter, 261 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 182 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 369 IncrementalHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 79 mSDtfsCounter, 369 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 806 GetRequests, 688 SyntacticMatches, 5 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 557 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132occurred in iteration=11, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 34 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 22 NumberOfFragments, 142 HoareAnnotationTreeSize, 1 FomulaSimplifications, 240 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 1 FomulaSimplificationsInter, 1389 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 731 NumberOfCodeBlocks, 659 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 916 ConstructedInterpolants, 0 QuantifiedInterpolants, 2277 SizeOfPredicates, 0 NumberOfNonLiveVariables, 440 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 21 InterpolantComputations, 8 PerfectInterpolantSequences, 3326/6060 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 4 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: ((((((((((((c < 2147483641 && 17 <= i) && 0 <= c) && 0 <= i) || (((12 <= i && 0 <= c) && 0 <= i) && c <= 2)) || ((0 <= c && c <= 0) && 0 <= i)) || (((c <= 1 && !(i <= 10)) && 0 <= c) && 0 <= i)) || (((13 <= i && 0 <= c) && 0 <= i) && c <= 3)) || (((18 <= i && 0 <= c) && 0 <= i) && c < 2147483642)) || (((0 <= c && 0 <= i) && c <= 6) && 16 <= i)) || (((c <= 5 && 15 <= i) && 0 <= c) && 0 <= i)) || (((0 <= c && 0 <= i) && c < 2147483644) && 20 <= i)) || (((c < 2147483643 && 19 <= i) && 0 <= c) && 0 <= i)) || (((c <= 4 && 14 <= i) && 0 <= c) && 0 <= i) RESULT: Ultimate proved your program to be correct! [2022-12-14 12:44:48,423 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b603001-4e47-4d46-bab7-d04c46f19b96/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE