./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-tiling/skippedu.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/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_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-tiling/skippedu.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/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 32bit --witnessprinter.graph.data.programhash 578aa1ed819483237cae7cb7b17bc18e9dfff9e081f63e5821fc4a918d7ba90e --- 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 10:42:18,550 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:42:18,552 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:42:18,570 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:42:18,570 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:42:18,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:42:18,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:42:18,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:42:18,575 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:42:18,576 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:42:18,577 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:42:18,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:42:18,578 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:42:18,579 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:42:18,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:42:18,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:42:18,582 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:42:18,582 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:42:18,584 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:42:18,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:42:18,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:42:18,588 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:42:18,589 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:42:18,590 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:42:18,593 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:42:18,593 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:42:18,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:42:18,594 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:42:18,595 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:42:18,596 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:42:18,596 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:42:18,596 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:42:18,597 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:42:18,598 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:42:18,599 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:42:18,599 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:42:18,599 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:42:18,600 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:42:18,600 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:42:18,601 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:42:18,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:42:18,602 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 10:42:18,623 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:42:18,623 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:42:18,624 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:42:18,624 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:42:18,629 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:42:18,629 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:42:18,629 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:42:18,630 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:42:18,630 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:42:18,630 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 10:42:18,630 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:42:18,630 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:42:18,631 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 10:42:18,631 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 10:42:18,631 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:42:18,631 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 10:42:18,632 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 10:42:18,632 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 10:42:18,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:42:18,633 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 10:42:18,633 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 10:42:18,633 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:42:18,633 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 10:42:18,633 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:42:18,634 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:42:18,634 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:42:18,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:42:18,634 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 10:42:18,634 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 10:42:18,635 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:42:18,635 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:42:18,635 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:42:18,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:42:18,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:42:18,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:42:18,636 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:42:18,636 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 10:42:18,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:42:18,636 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:42:18,636 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 10:42:18,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 10:42:18,637 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:42:18,637 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:42:18,637 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_cbcf9718-1d71-4b78-853b-c822379ff9f4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 578aa1ed819483237cae7cb7b17bc18e9dfff9e081f63e5821fc4a918d7ba90e [2022-12-14 10:42:18,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:42:18,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:42:18,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:42:18,857 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:42:18,858 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:42:18,859 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/array-tiling/skippedu.c [2022-12-14 10:42:21,430 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:42:21,564 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:42:21,564 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/sv-benchmarks/c/array-tiling/skippedu.c [2022-12-14 10:42:21,568 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/data/93866b0a4/b027c1818e454cc79b0c0df60ddb2df3/FLAGef90b3822 [2022-12-14 10:42:21,578 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/data/93866b0a4/b027c1818e454cc79b0c0df60ddb2df3 [2022-12-14 10:42:21,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:42:21,581 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:42:21,582 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:42:21,582 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:42:21,585 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:42:21,585 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:42:21" (1/1) ... [2022-12-14 10:42:21,586 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46e73a48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:42:21, skipping insertion in model container [2022-12-14 10:42:21,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:42:21" (1/1) ... [2022-12-14 10:42:21,591 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:42:21,601 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:42:21,707 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/sv-benchmarks/c/array-tiling/skippedu.c[399,412] [2022-12-14 10:42:21,720 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:42:21,728 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:42:21,742 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/sv-benchmarks/c/array-tiling/skippedu.c[399,412] [2022-12-14 10:42:21,749 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:42:21,759 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:42:21,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:42:21 WrapperNode [2022-12-14 10:42:21,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:42:21,760 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:42:21,760 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:42:21,761 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:42:21,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:42:21" (1/1) ... [2022-12-14 10:42:21,772 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:42:21" (1/1) ... [2022-12-14 10:42:21,793 INFO L138 Inliner]: procedures = 16, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 106 [2022-12-14 10:42:21,794 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:42:21,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:42:21,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:42:21,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:42:21,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:42:21" (1/1) ... [2022-12-14 10:42:21,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:42:21" (1/1) ... [2022-12-14 10:42:21,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:42:21" (1/1) ... [2022-12-14 10:42:21,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:42:21" (1/1) ... [2022-12-14 10:42:21,812 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:42:21" (1/1) ... [2022-12-14 10:42:21,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:42:21" (1/1) ... [2022-12-14 10:42:21,816 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:42:21" (1/1) ... [2022-12-14 10:42:21,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:42:21" (1/1) ... [2022-12-14 10:42:21,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:42:21,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:42:21,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:42:21,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:42:21,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:42:21" (1/1) ... [2022-12-14 10:42:21,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:42:21,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:42:21,848 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:42:21,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:42:21,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:42:21,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 10:42:21,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 10:42:21,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 10:42:21,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:42:21,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:42:21,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 10:42:21,947 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:42:21,949 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:42:22,201 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:42:22,235 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:42:22,235 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-14 10:42:22,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:42:22 BoogieIcfgContainer [2022-12-14 10:42:22,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:42:22,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:42:22,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:42:22,244 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:42:22,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:42:21" (1/3) ... [2022-12-14 10:42:22,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fcac2f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:42:22, skipping insertion in model container [2022-12-14 10:42:22,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:42:21" (2/3) ... [2022-12-14 10:42:22,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fcac2f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:42:22, skipping insertion in model container [2022-12-14 10:42:22,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:42:22" (3/3) ... [2022-12-14 10:42:22,247 INFO L112 eAbstractionObserver]: Analyzing ICFG skippedu.c [2022-12-14 10:42:22,263 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:42:22,263 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2022-12-14 10:42:22,301 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:42:22,306 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;@59b00f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:42:22,307 INFO L358 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2022-12-14 10:42:22,310 INFO L276 IsEmpty]: Start isEmpty. Operand has 77 states, 44 states have (on average 1.9090909090909092) internal successors, (84), 76 states have internal predecessors, (84), 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 10:42:22,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 10:42:22,315 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:42:22,315 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 10:42:22,316 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-12-14 10:42:22,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:42:22,320 INFO L85 PathProgramCache]: Analyzing trace with hash 5461193, now seen corresponding path program 1 times [2022-12-14 10:42:22,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:42:22,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926482401] [2022-12-14 10:42:22,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:42:22,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:42:22,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:42:22,518 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 10:42:22,519 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:42:22,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926482401] [2022-12-14 10:42:22,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926482401] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:42:22,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:42:22,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:42:22,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666596033] [2022-12-14 10:42:22,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:42:22,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:42:22,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:42:22,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:42:22,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:42:22,552 INFO L87 Difference]: Start difference. First operand has 77 states, 44 states have (on average 1.9090909090909092) internal successors, (84), 76 states have internal predecessors, (84), 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 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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 10:42:22,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:42:22,673 INFO L93 Difference]: Finished difference Result 100 states and 109 transitions. [2022-12-14 10:42:22,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:42:22,676 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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 10:42:22,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:42:22,685 INFO L225 Difference]: With dead ends: 100 [2022-12-14 10:42:22,685 INFO L226 Difference]: Without dead ends: 83 [2022-12-14 10:42:22,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:42:22,691 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 12 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:42:22,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 164 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:42:22,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-12-14 10:42:22,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 77. [2022-12-14 10:42:22,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 45 states have (on average 1.8222222222222222) internal successors, (82), 76 states have internal predecessors, (82), 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 10:42:22,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2022-12-14 10:42:22,727 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 4 [2022-12-14 10:42:22,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:42:22,727 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2022-12-14 10:42:22,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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 10:42:22,728 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2022-12-14 10:42:22,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 10:42:22,728 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:42:22,728 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 10:42:22,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 10:42:22,729 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-12-14 10:42:22,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:42:22,730 INFO L85 PathProgramCache]: Analyzing trace with hash 169306197, now seen corresponding path program 1 times [2022-12-14 10:42:22,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:42:22,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470981211] [2022-12-14 10:42:22,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:42:22,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:42:22,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:42:22,806 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 10:42:22,806 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:42:22,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470981211] [2022-12-14 10:42:22,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470981211] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:42:22,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:42:22,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:42:22,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758378430] [2022-12-14 10:42:22,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:42:22,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:42:22,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:42:22,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:42:22,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:42:22,809 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 10:42:22,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:42:22,882 INFO L93 Difference]: Finished difference Result 144 states and 152 transitions. [2022-12-14 10:42:22,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:42:22,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2022-12-14 10:42:22,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:42:22,883 INFO L225 Difference]: With dead ends: 144 [2022-12-14 10:42:22,884 INFO L226 Difference]: Without dead ends: 77 [2022-12-14 10:42:22,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:42:22,886 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 2 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:42:22,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 82 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:42:22,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-12-14 10:42:22,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-12-14 10:42:22,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 45 states have (on average 1.8) internal successors, (81), 76 states have internal predecessors, (81), 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 10:42:22,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 81 transitions. [2022-12-14 10:42:22,894 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 81 transitions. Word has length 5 [2022-12-14 10:42:22,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:42:22,894 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 81 transitions. [2022-12-14 10:42:22,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 10:42:22,895 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 81 transitions. [2022-12-14 10:42:22,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 10:42:22,895 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:42:22,895 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-12-14 10:42:22,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 10:42:22,896 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-12-14 10:42:22,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:42:22,896 INFO L85 PathProgramCache]: Analyzing trace with hash -514303900, now seen corresponding path program 1 times [2022-12-14 10:42:22,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:42:22,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905678503] [2022-12-14 10:42:22,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:42:22,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:42:22,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:42:22,986 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:42:22,987 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:42:22,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905678503] [2022-12-14 10:42:22,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905678503] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:42:22,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821809830] [2022-12-14 10:42:22,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:42:22,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:42:22,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:42:22,988 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:42:22,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 10:42:23,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:42:23,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 10:42:23,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:42:23,078 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:42:23,078 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:42:23,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821809830] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:42:23,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 10:42:23,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-12-14 10:42:23,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498437106] [2022-12-14 10:42:23,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:42:23,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:42:23,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:42:23,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:42:23,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:42:23,081 INFO L87 Difference]: Start difference. First operand 77 states and 81 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 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 10:42:23,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:42:23,239 INFO L93 Difference]: Finished difference Result 131 states and 150 transitions. [2022-12-14 10:42:23,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:42:23,240 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 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 10:42:23,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:42:23,241 INFO L225 Difference]: With dead ends: 131 [2022-12-14 10:42:23,241 INFO L226 Difference]: Without dead ends: 118 [2022-12-14 10:42:23,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-14 10:42:23,243 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 115 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:42:23,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 65 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:42:23,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-12-14 10:42:23,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 104. [2022-12-14 10:42:23,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 73 states have (on average 1.6986301369863013) internal successors, (124), 103 states have internal predecessors, (124), 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 10:42:23,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 124 transitions. [2022-12-14 10:42:23,250 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 124 transitions. Word has length 7 [2022-12-14 10:42:23,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:42:23,250 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 124 transitions. [2022-12-14 10:42:23,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 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 10:42:23,250 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 124 transitions. [2022-12-14 10:42:23,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 10:42:23,251 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:42:23,251 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2022-12-14 10:42:23,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 10:42:23,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:42:23,452 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-12-14 10:42:23,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:42:23,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1236448333, now seen corresponding path program 1 times [2022-12-14 10:42:23,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:42:23,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188372659] [2022-12-14 10:42:23,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:42:23,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:42:23,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:42:23,567 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:42:23,567 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:42:23,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188372659] [2022-12-14 10:42:23,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188372659] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:42:23,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824165407] [2022-12-14 10:42:23,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:42:23,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:42:23,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:42:23,570 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:42:23,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 10:42:23,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:42:23,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 10:42:23,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:42:23,632 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:42:23,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:42:23,669 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:42:23,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824165407] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:42:23,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2107241031] [2022-12-14 10:42:23,683 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2022-12-14 10:42:23,683 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:42:23,686 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:42:23,690 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:42:23,690 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:42:23,782 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 10:42:23,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-12-14 10:42:23,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 34 [2022-12-14 10:42:23,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-12-14 10:42:23,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:23,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2022-12-14 10:42:24,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:24,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:24,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:24,114 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:42:24,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:24,128 INFO L321 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2022-12-14 10:42:24,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 283 treesize of output 271 [2022-12-14 10:42:24,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 10:42:24,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 10:42:24,373 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:42:24,856 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '840#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~MAX~0 100000) (<= 1 ~SIZE~0) (<= ~SIZE~0 100000) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (< 2147483646 |ULTIMATE.start_main_#t~post6#1|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 10:42:24,857 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 10:42:24,857 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:42:24,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-12-14 10:42:24,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940786934] [2022-12-14 10:42:24,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 10:42:24,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 10:42:24,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:42:24,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 10:42:24,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2022-12-14 10:42:24,859 INFO L87 Difference]: Start difference. First operand 104 states and 124 transitions. Second operand has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:42:25,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:42:25,118 INFO L93 Difference]: Finished difference Result 143 states and 155 transitions. [2022-12-14 10:42:25,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 10:42:25,118 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 10:42:25,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:42:25,120 INFO L225 Difference]: With dead ends: 143 [2022-12-14 10:42:25,120 INFO L226 Difference]: Without dead ends: 130 [2022-12-14 10:42:25,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=96, Invalid=324, Unknown=0, NotChecked=0, Total=420 [2022-12-14 10:42:25,121 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 94 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:42:25,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 127 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 10:42:25,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-12-14 10:42:25,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 114. [2022-12-14 10:42:25,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 83 states have (on average 1.5180722891566265) internal successors, (126), 113 states have internal predecessors, (126), 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 10:42:25,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 126 transitions. [2022-12-14 10:42:25,127 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 126 transitions. Word has length 8 [2022-12-14 10:42:25,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:42:25,128 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 126 transitions. [2022-12-14 10:42:25,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:42:25,128 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 126 transitions. [2022-12-14 10:42:25,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 10:42:25,128 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:42:25,128 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:42:25,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 10:42:25,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:42:25,330 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-12-14 10:42:25,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:42:25,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1236457498, now seen corresponding path program 1 times [2022-12-14 10:42:25,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:42:25,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901862178] [2022-12-14 10:42:25,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:42:25,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:42:25,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:42:25,495 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:42:25,495 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:42:25,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901862178] [2022-12-14 10:42:25,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901862178] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:42:25,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [164633071] [2022-12-14 10:42:25,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:42:25,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:42:25,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:42:25,498 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:42:25,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 10:42:25,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:42:25,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 10:42:25,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:42:25,566 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:42:25,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:42:25,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:42:25,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [164633071] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:42:25,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [395118293] [2022-12-14 10:42:25,591 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-12-14 10:42:25,591 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:42:25,591 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:42:25,592 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:42:25,592 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:42:25,637 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 10:42:25,637 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-12-14 10:42:25,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 34 [2022-12-14 10:42:25,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-12-14 10:42:25,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2022-12-14 10:42:25,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:25,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:25,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:25,793 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:42:25,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:25,804 INFO L321 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2022-12-14 10:42:25,805 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 283 treesize of output 271 [2022-12-14 10:42:25,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 10:42:25,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 10:42:25,980 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:42:26,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [395118293] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:42:26,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:42:26,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5, 5, 5] total 16 [2022-12-14 10:42:26,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555922032] [2022-12-14 10:42:26,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:42:26,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:42:26,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:42:26,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:42:26,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-12-14 10:42:26,470 INFO L87 Difference]: Start difference. First operand 114 states and 126 transitions. Second operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 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 10:42:27,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:42:27,270 INFO L93 Difference]: Finished difference Result 209 states and 225 transitions. [2022-12-14 10:42:27,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 10:42:27,270 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 10:42:27,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:42:27,271 INFO L225 Difference]: With dead ends: 209 [2022-12-14 10:42:27,271 INFO L226 Difference]: Without dead ends: 200 [2022-12-14 10:42:27,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2022-12-14 10:42:27,273 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 157 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 10:42:27,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 104 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 10:42:27,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-12-14 10:42:27,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 131. [2022-12-14 10:42:27,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 101 states have (on average 1.495049504950495) internal successors, (151), 130 states have internal predecessors, (151), 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 10:42:27,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 151 transitions. [2022-12-14 10:42:27,285 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 151 transitions. Word has length 8 [2022-12-14 10:42:27,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:42:27,285 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 151 transitions. [2022-12-14 10:42:27,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 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 10:42:27,285 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 151 transitions. [2022-12-14 10:42:27,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 10:42:27,286 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:42:27,286 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:42:27,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 10:42:27,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:42:27,488 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-12-14 10:42:27,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:42:27,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1817246369, now seen corresponding path program 1 times [2022-12-14 10:42:27,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:42:27,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631270993] [2022-12-14 10:42:27,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:42:27,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:42:27,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:42:27,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 10:42:27,567 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:42:27,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631270993] [2022-12-14 10:42:27,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631270993] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:42:27,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:42:27,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:42:27,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400321627] [2022-12-14 10:42:27,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:42:27,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:42:27,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:42:27,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:42:27,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:42:27,568 INFO L87 Difference]: Start difference. First operand 131 states and 151 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 10:42:27,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:42:27,659 INFO L93 Difference]: Finished difference Result 139 states and 161 transitions. [2022-12-14 10:42:27,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:42:27,659 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 22 [2022-12-14 10:42:27,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:42:27,660 INFO L225 Difference]: With dead ends: 139 [2022-12-14 10:42:27,660 INFO L226 Difference]: Without dead ends: 137 [2022-12-14 10:42:27,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:42:27,661 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 21 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:42:27,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 87 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:42:27,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-12-14 10:42:27,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2022-12-14 10:42:27,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 107 states have (on average 1.4672897196261683) internal successors, (157), 136 states have internal predecessors, (157), 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 10:42:27,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 157 transitions. [2022-12-14 10:42:27,667 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 157 transitions. Word has length 22 [2022-12-14 10:42:27,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:42:27,667 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 157 transitions. [2022-12-14 10:42:27,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 10:42:27,667 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 157 transitions. [2022-12-14 10:42:27,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 10:42:27,667 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:42:27,668 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:42:27,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 10:42:27,668 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-12-14 10:42:27,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:42:27,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1813257806, now seen corresponding path program 1 times [2022-12-14 10:42:27,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:42:27,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702041714] [2022-12-14 10:42:27,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:42:27,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:42:27,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:42:27,722 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 10:42:27,722 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:42:27,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702041714] [2022-12-14 10:42:27,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702041714] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:42:27,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076090897] [2022-12-14 10:42:27,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:42:27,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:42:27,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:42:27,724 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:42:27,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 10:42:27,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:42:27,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 10:42:27,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:42:27,794 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 10:42:27,795 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:42:27,818 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 10:42:27,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1076090897] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:42:27,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1598564882] [2022-12-14 10:42:27,821 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2022-12-14 10:42:27,821 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:42:27,821 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:42:27,821 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:42:27,821 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:42:27,873 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 10:42:27,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-12-14 10:42:27,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 34 [2022-12-14 10:42:27,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-12-14 10:42:27,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:27,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2022-12-14 10:42:28,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:28,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:28,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:28,066 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:42:28,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:28,075 INFO L321 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2022-12-14 10:42:28,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 283 treesize of output 271 [2022-12-14 10:42:28,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 10:42:28,450 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 10:42:28,458 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:42:30,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1598564882] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:42:30,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:42:30,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [4, 5, 5] total 25 [2022-12-14 10:42:30,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557396517] [2022-12-14 10:42:30,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:42:30,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-14 10:42:30,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:42:30,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-14 10:42:30,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=517, Unknown=0, NotChecked=0, Total=600 [2022-12-14 10:42:30,013 INFO L87 Difference]: Start difference. First operand 137 states and 157 transitions. Second operand has 16 states, 15 states have (on average 1.6) internal successors, (24), 15 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 10:42:32,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:42:32,436 INFO L93 Difference]: Finished difference Result 288 states and 327 transitions. [2022-12-14 10:42:32,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 10:42:32,437 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.6) internal successors, (24), 15 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) Word has length 27 [2022-12-14 10:42:32,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:42:32,438 INFO L225 Difference]: With dead ends: 288 [2022-12-14 10:42:32,438 INFO L226 Difference]: Without dead ends: 260 [2022-12-14 10:42:32,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 50 SyntacticMatches, 10 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=190, Invalid=1000, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 10:42:32,440 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 280 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 10:42:32,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 177 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 764 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 10:42:32,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-12-14 10:42:32,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 182. [2022-12-14 10:42:32,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 152 states have (on average 1.355263157894737) internal successors, (206), 181 states have internal predecessors, (206), 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 10:42:32,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 206 transitions. [2022-12-14 10:42:32,452 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 206 transitions. Word has length 27 [2022-12-14 10:42:32,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:42:32,453 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 206 transitions. [2022-12-14 10:42:32,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.6) internal successors, (24), 15 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 10:42:32,453 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 206 transitions. [2022-12-14 10:42:32,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-12-14 10:42:32,453 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:42:32,453 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:42:32,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 10:42:32,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-14 10:42:32,654 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-12-14 10:42:32,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:42:32,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1215981471, now seen corresponding path program 1 times [2022-12-14 10:42:32,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:42:32,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61309699] [2022-12-14 10:42:32,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:42:32,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:42:32,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:42:32,697 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 10:42:32,697 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:42:32,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61309699] [2022-12-14 10:42:32,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61309699] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:42:32,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:42:32,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:42:32,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552588295] [2022-12-14 10:42:32,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:42:32,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:42:32,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:42:32,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:42:32,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:42:32,699 INFO L87 Difference]: Start difference. First operand 182 states and 206 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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 10:42:32,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:42:32,761 INFO L93 Difference]: Finished difference Result 189 states and 213 transitions. [2022-12-14 10:42:32,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:42:32,761 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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 29 [2022-12-14 10:42:32,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:42:32,762 INFO L225 Difference]: With dead ends: 189 [2022-12-14 10:42:32,762 INFO L226 Difference]: Without dead ends: 187 [2022-12-14 10:42:32,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:42:32,763 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 5 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:42:32,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 147 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:42:32,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-12-14 10:42:32,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 185. [2022-12-14 10:42:32,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 155 states have (on average 1.3483870967741935) internal successors, (209), 184 states have internal predecessors, (209), 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 10:42:32,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 209 transitions. [2022-12-14 10:42:32,772 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 209 transitions. Word has length 29 [2022-12-14 10:42:32,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:42:32,772 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 209 transitions. [2022-12-14 10:42:32,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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 10:42:32,772 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 209 transitions. [2022-12-14 10:42:32,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-14 10:42:32,773 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:42:32,773 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:42:32,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 10:42:32,773 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-12-14 10:42:32,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:42:32,774 INFO L85 PathProgramCache]: Analyzing trace with hash -2076891327, now seen corresponding path program 1 times [2022-12-14 10:42:32,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:42:32,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596355822] [2022-12-14 10:42:32,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:42:32,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:42:32,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:42:32,836 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 10:42:32,837 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:42:32,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596355822] [2022-12-14 10:42:32,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596355822] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:42:32,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:42:32,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 10:42:32,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942861645] [2022-12-14 10:42:32,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:42:32,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:42:32,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:42:32,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:42:32,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:42:32,838 INFO L87 Difference]: Start difference. First operand 185 states and 209 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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 10:42:32,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:42:32,859 INFO L93 Difference]: Finished difference Result 185 states and 209 transitions. [2022-12-14 10:42:32,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:42:32,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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 32 [2022-12-14 10:42:32,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:42:32,860 INFO L225 Difference]: With dead ends: 185 [2022-12-14 10:42:32,860 INFO L226 Difference]: Without dead ends: 184 [2022-12-14 10:42:32,861 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 10:42:32,861 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 50 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:42:32,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 64 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:42:32,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-12-14 10:42:32,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2022-12-14 10:42:32,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 155 states have (on average 1.3419354838709678) internal successors, (208), 183 states have internal predecessors, (208), 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 10:42:32,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 208 transitions. [2022-12-14 10:42:32,867 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 208 transitions. Word has length 32 [2022-12-14 10:42:32,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:42:32,868 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 208 transitions. [2022-12-14 10:42:32,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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 10:42:32,868 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 208 transitions. [2022-12-14 10:42:32,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-14 10:42:32,868 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:42:32,869 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:42:32,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 10:42:32,869 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-12-14 10:42:32,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:42:32,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1549995601, now seen corresponding path program 1 times [2022-12-14 10:42:32,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:42:32,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925656039] [2022-12-14 10:42:32,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:42:32,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:42:32,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:42:32,926 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 10:42:32,927 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:42:32,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925656039] [2022-12-14 10:42:32,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925656039] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:42:32,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324910294] [2022-12-14 10:42:32,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:42:32,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:42:32,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:42:32,928 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:42:32,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 10:42:32,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:42:32,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 10:42:32,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:42:33,001 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 10:42:33,001 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:42:33,022 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 10:42:33,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [324910294] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:42:33,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1612335708] [2022-12-14 10:42:33,024 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2022-12-14 10:42:33,024 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:42:33,024 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:42:33,024 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:42:33,024 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:42:33,070 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 10:42:33,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-12-14 10:42:33,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 34 [2022-12-14 10:42:33,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-12-14 10:42:33,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:33,131 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2022-12-14 10:42:33,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:33,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:33,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:33,228 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:42:33,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:33,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:33,242 INFO L321 Elim1Store]: treesize reduction 66, result has 13.2 percent of original size [2022-12-14 10:42:33,242 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 293 treesize of output 278 [2022-12-14 10:42:33,344 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 10:42:33,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 10:42:33,812 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:42:35,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1612335708] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:42:35,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:42:35,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [5, 5, 5] total 27 [2022-12-14 10:42:35,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419087607] [2022-12-14 10:42:35,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:42:35,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-14 10:42:35,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:42:35,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-14 10:42:35,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=593, Unknown=0, NotChecked=0, Total=702 [2022-12-14 10:42:35,427 INFO L87 Difference]: Start difference. First operand 184 states and 208 transitions. Second operand has 19 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 18 states have internal predecessors, (29), 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 10:42:39,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:42:39,392 INFO L93 Difference]: Finished difference Result 345 states and 378 transitions. [2022-12-14 10:42:39,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-14 10:42:39,392 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 18 states have internal predecessors, (29), 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 32 [2022-12-14 10:42:39,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:42:39,393 INFO L225 Difference]: With dead ends: 345 [2022-12-14 10:42:39,393 INFO L226 Difference]: Without dead ends: 317 [2022-12-14 10:42:39,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 65 SyntacticMatches, 9 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 892 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=449, Invalid=2413, Unknown=0, NotChecked=0, Total=2862 [2022-12-14 10:42:39,394 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 325 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 10:42:39,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 99 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 10:42:39,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-12-14 10:42:39,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 202. [2022-12-14 10:42:39,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 173 states have (on average 1.323699421965318) internal successors, (229), 201 states have internal predecessors, (229), 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 10:42:39,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 229 transitions. [2022-12-14 10:42:39,401 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 229 transitions. Word has length 32 [2022-12-14 10:42:39,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:42:39,401 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 229 transitions. [2022-12-14 10:42:39,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 18 states have internal predecessors, (29), 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 10:42:39,402 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 229 transitions. [2022-12-14 10:42:39,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-14 10:42:39,402 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:42:39,402 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:42:39,407 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 10:42:39,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-14 10:42:39,604 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-12-14 10:42:39,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:42:39,605 INFO L85 PathProgramCache]: Analyzing trace with hash 805223543, now seen corresponding path program 1 times [2022-12-14 10:42:39,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:42:39,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510406432] [2022-12-14 10:42:39,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:42:39,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:42:39,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:42:39,694 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 10:42:39,694 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:42:39,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510406432] [2022-12-14 10:42:39,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510406432] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:42:39,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607537361] [2022-12-14 10:42:39,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:42:39,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:42:39,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:42:39,696 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:42:39,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 10:42:39,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:42:39,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 10:42:39,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:42:39,774 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 10:42:39,775 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:42:39,794 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 10:42:39,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1607537361] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:42:39,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [76076668] [2022-12-14 10:42:39,796 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2022-12-14 10:42:39,796 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:42:39,797 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:42:39,797 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:42:39,797 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:42:39,844 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 10:42:39,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-12-14 10:42:39,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 34 [2022-12-14 10:42:39,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-12-14 10:42:39,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2022-12-14 10:42:39,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:39,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:39,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:39,994 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:42:39,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:39,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:40,003 INFO L321 Elim1Store]: treesize reduction 60, result has 1.6 percent of original size [2022-12-14 10:42:40,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 299 treesize of output 280 [2022-12-14 10:42:40,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 10:42:40,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 10:42:40,482 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:42:42,280 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4357#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~MAX~0 100000) (<= 1 ~SIZE~0) (< 2147483646 |ULTIMATE.start_main_#t~post11#1|) (<= ~SIZE~0 100000) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_~cond#1| 1) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-12-14 10:42:42,280 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 10:42:42,280 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:42:42,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-12-14 10:42:42,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065990468] [2022-12-14 10:42:42,280 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 10:42:42,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 10:42:42,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:42:42,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 10:42:42,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=644, Unknown=0, NotChecked=0, Total=756 [2022-12-14 10:42:42,282 INFO L87 Difference]: Start difference. First operand 202 states and 229 transitions. Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 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 10:42:42,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:42:42,409 INFO L93 Difference]: Finished difference Result 403 states and 457 transitions. [2022-12-14 10:42:42,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:42:42,409 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 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 33 [2022-12-14 10:42:42,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:42:42,411 INFO L225 Difference]: With dead ends: 403 [2022-12-14 10:42:42,411 INFO L226 Difference]: Without dead ends: 207 [2022-12-14 10:42:42,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 67 SyntacticMatches, 9 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=122, Invalid=690, Unknown=0, NotChecked=0, Total=812 [2022-12-14 10:42:42,412 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 10 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:42:42,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 210 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:42:42,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-12-14 10:42:42,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 205. [2022-12-14 10:42:42,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 176 states have (on average 1.3181818181818181) internal successors, (232), 204 states have internal predecessors, (232), 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 10:42:42,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 232 transitions. [2022-12-14 10:42:42,421 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 232 transitions. Word has length 33 [2022-12-14 10:42:42,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:42:42,421 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 232 transitions. [2022-12-14 10:42:42,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 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 10:42:42,421 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 232 transitions. [2022-12-14 10:42:42,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-14 10:42:42,421 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:42:42,421 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:42:42,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 10:42:42,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:42:42,623 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-12-14 10:42:42,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:42:42,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1213693252, now seen corresponding path program 2 times [2022-12-14 10:42:42,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:42:42,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229069533] [2022-12-14 10:42:42,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:42:42,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:42:42,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:42:42,714 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 10:42:42,714 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:42:42,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229069533] [2022-12-14 10:42:42,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229069533] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:42:42,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1994623589] [2022-12-14 10:42:42,715 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 10:42:42,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:42:42,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:42:42,716 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:42:42,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 10:42:42,754 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-14 10:42:42,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 10:42:42,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 10:42:42,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:42:42,795 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 10:42:42,795 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:42:42,830 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 10:42:42,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1994623589] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:42:42,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1689788404] [2022-12-14 10:42:42,833 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2022-12-14 10:42:42,833 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:42:42,833 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:42:42,833 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:42:42,833 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:42:42,887 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 10:42:42,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-12-14 10:42:42,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 34 [2022-12-14 10:42:42,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-12-14 10:42:42,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2022-12-14 10:42:43,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:43,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:43,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:43,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:43,040 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-12-14 10:42:43,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 309 treesize of output 273 [2022-12-14 10:42:43,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 10:42:43,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 10:42:43,492 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:42:45,315 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5236#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~MAX~0 100000) (<= 1 ~SIZE~0) (< 2147483646 |ULTIMATE.start_main_#t~post11#1|) (<= ~SIZE~0 100000) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_~cond#1| 1) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-12-14 10:42:45,315 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 10:42:45,315 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:42:45,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 2, 2] total 7 [2022-12-14 10:42:45,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883662368] [2022-12-14 10:42:45,316 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 10:42:45,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:42:45,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:42:45,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:42:45,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=533, Unknown=0, NotChecked=0, Total=650 [2022-12-14 10:42:45,317 INFO L87 Difference]: Start difference. First operand 205 states and 232 transitions. Second operand has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 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 10:42:45,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:42:45,515 INFO L93 Difference]: Finished difference Result 218 states and 247 transitions. [2022-12-14 10:42:45,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 10:42:45,515 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 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 36 [2022-12-14 10:42:45,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:42:45,517 INFO L225 Difference]: With dead ends: 218 [2022-12-14 10:42:45,517 INFO L226 Difference]: Without dead ends: 206 [2022-12-14 10:42:45,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 80 SyntacticMatches, 9 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=159, Invalid=833, Unknown=0, NotChecked=0, Total=992 [2022-12-14 10:42:45,518 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 105 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:42:45,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 101 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:42:45,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-12-14 10:42:45,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 139. [2022-12-14 10:42:45,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 112 states have (on average 1.3125) internal successors, (147), 138 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 10:42:45,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 147 transitions. [2022-12-14 10:42:45,524 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 147 transitions. Word has length 36 [2022-12-14 10:42:45,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:42:45,524 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 147 transitions. [2022-12-14 10:42:45,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 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 10:42:45,524 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 147 transitions. [2022-12-14 10:42:45,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-12-14 10:42:45,525 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:42:45,525 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:42:45,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-14 10:42:45,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-14 10:42:45,727 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-12-14 10:42:45,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:42:45,728 INFO L85 PathProgramCache]: Analyzing trace with hash -395486847, now seen corresponding path program 1 times [2022-12-14 10:42:45,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:42:45,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115636637] [2022-12-14 10:42:45,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:42:45,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:42:45,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:42:45,817 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 10:42:45,817 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:42:45,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115636637] [2022-12-14 10:42:45,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115636637] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:42:45,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325246660] [2022-12-14 10:42:45,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:42:45,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:42:45,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:42:45,818 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:42:45,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 10:42:45,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:42:45,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 10:42:45,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:42:45,895 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 10:42:45,895 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:42:45,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325246660] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:42:45,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 10:42:45,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-12-14 10:42:45,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175535467] [2022-12-14 10:42:45,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:42:45,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:42:45,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:42:45,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:42:45,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-14 10:42:45,897 INFO L87 Difference]: Start difference. First operand 139 states and 147 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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 10:42:46,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:42:46,013 INFO L93 Difference]: Finished difference Result 142 states and 150 transitions. [2022-12-14 10:42:46,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:42:46,013 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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 38 [2022-12-14 10:42:46,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:42:46,014 INFO L225 Difference]: With dead ends: 142 [2022-12-14 10:42:46,014 INFO L226 Difference]: Without dead ends: 129 [2022-12-14 10:42:46,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-12-14 10:42:46,015 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 71 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:42:46,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 27 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:42:46,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-12-14 10:42:46,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 126. [2022-12-14 10:42:46,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 112 states have (on average 1.1964285714285714) internal successors, (134), 125 states have internal predecessors, (134), 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 10:42:46,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 134 transitions. [2022-12-14 10:42:46,021 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 134 transitions. Word has length 38 [2022-12-14 10:42:46,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:42:46,022 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 134 transitions. [2022-12-14 10:42:46,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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 10:42:46,022 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 134 transitions. [2022-12-14 10:42:46,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-12-14 10:42:46,022 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:42:46,022 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:42:46,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-14 10:42:46,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-14 10:42:46,224 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-12-14 10:42:46,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:42:46,225 INFO L85 PathProgramCache]: Analyzing trace with hash 624809711, now seen corresponding path program 1 times [2022-12-14 10:42:46,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:42:46,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734742364] [2022-12-14 10:42:46,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:42:46,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:42:46,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:42:46,303 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 10:42:46,303 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:42:46,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734742364] [2022-12-14 10:42:46,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734742364] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:42:46,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611979421] [2022-12-14 10:42:46,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:42:46,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:42:46,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:42:46,304 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:42:46,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-14 10:42:46,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:42:46,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 10:42:46,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:42:46,380 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 10:42:46,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:42:46,418 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 10:42:46,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [611979421] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:42:46,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [143789737] [2022-12-14 10:42:46,420 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2022-12-14 10:42:46,421 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:42:46,421 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:42:46,421 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:42:46,421 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:42:46,471 INFO L321 Elim1Store]: treesize reduction 42, result has 40.0 percent of original size [2022-12-14 10:42:46,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 46 [2022-12-14 10:42:46,510 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 10:42:46,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-12-14 10:42:46,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-12-14 10:42:46,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2022-12-14 10:42:46,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:46,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:46,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:46,663 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:42:46,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:46,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:46,673 INFO L321 Elim1Store]: treesize reduction 60, result has 1.6 percent of original size [2022-12-14 10:42:46,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 299 treesize of output 280 [2022-12-14 10:42:46,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 10:42:46,812 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 10:42:46,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 35 [2022-12-14 10:42:46,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:46,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:46,902 INFO L321 Elim1Store]: treesize reduction 30, result has 46.4 percent of original size [2022-12-14 10:42:46,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 368 treesize of output 362 [2022-12-14 10:42:47,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-12-14 10:42:47,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-12-14 10:42:47,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 10:42:47,617 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:42:49,212 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6291#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= 1 ~SIZE~0) (<= 100000 ~MAX~0) (<= ~SIZE~0 100000) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (< 2147483647 (* 2 |ULTIMATE.start_main_~i~0#1|)) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start_main_~i~0#1| 1073741824) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (<= ~MAX~0 100000) (= |#NULL.base| 0))' at error location [2022-12-14 10:42:49,213 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 10:42:49,213 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:42:49,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2022-12-14 10:42:49,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218345793] [2022-12-14 10:42:49,213 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 10:42:49,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 10:42:49,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:42:49,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 10:42:49,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=453, Unknown=0, NotChecked=0, Total=552 [2022-12-14 10:42:49,214 INFO L87 Difference]: Start difference. First operand 126 states and 134 transitions. Second operand has 10 states, 9 states have (on average 10.11111111111111) internal successors, (91), 10 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 10:42:49,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:42:49,333 INFO L93 Difference]: Finished difference Result 208 states and 234 transitions. [2022-12-14 10:42:49,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 10:42:49,333 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.11111111111111) internal successors, (91), 10 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) Word has length 39 [2022-12-14 10:42:49,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:42:49,334 INFO L225 Difference]: With dead ends: 208 [2022-12-14 10:42:49,334 INFO L226 Difference]: Without dead ends: 195 [2022-12-14 10:42:49,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 79 SyntacticMatches, 18 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 480 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=116, Invalid=534, Unknown=0, NotChecked=0, Total=650 [2022-12-14 10:42:49,335 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 131 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:42:49,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 35 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:42:49,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-12-14 10:42:49,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 168. [2022-12-14 10:42:49,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 165 states have (on average 1.103030303030303) internal successors, (182), 167 states have internal predecessors, (182), 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 10:42:49,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 182 transitions. [2022-12-14 10:42:49,348 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 182 transitions. Word has length 39 [2022-12-14 10:42:49,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:42:49,348 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 182 transitions. [2022-12-14 10:42:49,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.11111111111111) internal successors, (91), 10 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 10:42:49,348 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 182 transitions. [2022-12-14 10:42:49,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-12-14 10:42:49,349 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:42:49,349 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:42:49,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-14 10:42:49,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:42:49,550 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-12-14 10:42:49,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:42:49,551 INFO L85 PathProgramCache]: Analyzing trace with hash 577708002, now seen corresponding path program 1 times [2022-12-14 10:42:49,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:42:49,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155174928] [2022-12-14 10:42:49,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:42:49,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:42:49,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:42:49,643 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 10:42:49,643 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:42:49,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155174928] [2022-12-14 10:42:49,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155174928] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:42:49,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092329712] [2022-12-14 10:42:49,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:42:49,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:42:49,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:42:49,645 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:42:49,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-14 10:42:49,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:42:49,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 10:42:49,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:42:49,712 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 10:42:49,713 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:42:49,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1092329712] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:42:49,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 10:42:49,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-12-14 10:42:49,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378552462] [2022-12-14 10:42:49,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:42:49,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:42:49,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:42:49,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:42:49,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:42:49,714 INFO L87 Difference]: Start difference. First operand 168 states and 182 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 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 10:42:49,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:42:49,805 INFO L93 Difference]: Finished difference Result 169 states and 183 transitions. [2022-12-14 10:42:49,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:42:49,805 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 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 43 [2022-12-14 10:42:49,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:42:49,806 INFO L225 Difference]: With dead ends: 169 [2022-12-14 10:42:49,806 INFO L226 Difference]: Without dead ends: 161 [2022-12-14 10:42:49,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-14 10:42:49,807 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 73 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:42:49,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 39 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:42:49,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-12-14 10:42:49,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2022-12-14 10:42:49,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 159 states have (on average 1.0817610062893082) internal successors, (172), 160 states have internal predecessors, (172), 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 10:42:49,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 172 transitions. [2022-12-14 10:42:49,814 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 172 transitions. Word has length 43 [2022-12-14 10:42:49,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:42:49,814 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 172 transitions. [2022-12-14 10:42:49,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 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 10:42:49,814 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 172 transitions. [2022-12-14 10:42:49,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-12-14 10:42:49,814 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:42:49,815 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:42:49,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-14 10:42:50,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:42:50,016 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-12-14 10:42:50,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:42:50,017 INFO L85 PathProgramCache]: Analyzing trace with hash 425380707, now seen corresponding path program 1 times [2022-12-14 10:42:50,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:42:50,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194463984] [2022-12-14 10:42:50,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:42:50,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:42:50,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:42:50,182 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-12-14 10:42:50,183 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:42:50,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194463984] [2022-12-14 10:42:50,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194463984] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:42:50,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:42:50,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:42:50,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241513016] [2022-12-14 10:42:50,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:42:50,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:42:50,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:42:50,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:42:50,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:42:50,184 INFO L87 Difference]: Start difference. First operand 161 states and 172 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 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 10:42:50,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:42:50,231 INFO L93 Difference]: Finished difference Result 161 states and 172 transitions. [2022-12-14 10:42:50,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:42:50,232 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 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 66 [2022-12-14 10:42:50,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:42:50,232 INFO L225 Difference]: With dead ends: 161 [2022-12-14 10:42:50,232 INFO L226 Difference]: Without dead ends: 160 [2022-12-14 10:42:50,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:42:50,233 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 26 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:42:50,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 15 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:42:50,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-12-14 10:42:50,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2022-12-14 10:42:50,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 159 states have (on average 1.0754716981132075) internal successors, (171), 159 states have internal predecessors, (171), 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 10:42:50,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 171 transitions. [2022-12-14 10:42:50,239 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 171 transitions. Word has length 66 [2022-12-14 10:42:50,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:42:50,240 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 171 transitions. [2022-12-14 10:42:50,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 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 10:42:50,240 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 171 transitions. [2022-12-14 10:42:50,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-14 10:42:50,240 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:42:50,241 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:42:50,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 10:42:50,241 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-12-14 10:42:50,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:42:50,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1014391383, now seen corresponding path program 1 times [2022-12-14 10:42:50,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:42:50,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680750264] [2022-12-14 10:42:50,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:42:50,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:42:50,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:42:50,570 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-12-14 10:42:50,570 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:42:50,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680750264] [2022-12-14 10:42:50,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680750264] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:42:50,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611417213] [2022-12-14 10:42:50,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:42:50,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:42:50,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:42:50,571 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:42:50,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-14 10:42:50,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:42:50,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 10:42:50,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:42:50,725 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 10:42:50,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:42:50,847 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 10:42:50,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611417213] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:42:50,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [591451258] [2022-12-14 10:42:50,850 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2022-12-14 10:42:50,850 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:42:50,850 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:42:50,851 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:42:50,851 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:42:50,912 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 10:42:50,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-12-14 10:42:50,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 34 [2022-12-14 10:42:50,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-12-14 10:42:50,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2022-12-14 10:42:51,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:51,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:51,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:51,086 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:42:51,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:51,098 INFO L321 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2022-12-14 10:42:51,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 283 treesize of output 271 [2022-12-14 10:42:51,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 10:42:51,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 20 [2022-12-14 10:42:51,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 20 [2022-12-14 10:42:51,827 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 10:42:51,834 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:42:53,759 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7985#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~MAX~0 100000) (<= 1 ~SIZE~0) (<= ~SIZE~0 100000) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (< 2147483647 (* 2 |ULTIMATE.start_main_~i~0#1|)) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start_main_~i~0#1| 1073741824) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-12-14 10:42:53,760 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 10:42:53,760 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:42:53,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 23 [2022-12-14 10:42:53,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362916919] [2022-12-14 10:42:53,760 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 10:42:53,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-14 10:42:53,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:42:53,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-14 10:42:53,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=1242, Unknown=0, NotChecked=0, Total=1406 [2022-12-14 10:42:53,762 INFO L87 Difference]: Start difference. First operand 160 states and 171 transitions. Second operand has 24 states, 23 states have (on average 7.3478260869565215) internal successors, (169), 24 states have internal predecessors, (169), 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 10:42:54,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:42:54,310 INFO L93 Difference]: Finished difference Result 548 states and 590 transitions. [2022-12-14 10:42:54,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-14 10:42:54,310 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 7.3478260869565215) internal successors, (169), 24 states have internal predecessors, (169), 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 71 [2022-12-14 10:42:54,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:42:54,311 INFO L225 Difference]: With dead ends: 548 [2022-12-14 10:42:54,311 INFO L226 Difference]: Without dead ends: 397 [2022-12-14 10:42:54,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 158 SyntacticMatches, 27 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1566 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=343, Invalid=2207, Unknown=0, NotChecked=0, Total=2550 [2022-12-14 10:42:54,312 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 443 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 10:42:54,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 27 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 10:42:54,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2022-12-14 10:42:54,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 387. [2022-12-14 10:42:54,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 386 states have (on average 1.072538860103627) internal successors, (414), 386 states have internal predecessors, (414), 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 10:42:54,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 414 transitions. [2022-12-14 10:42:54,324 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 414 transitions. Word has length 71 [2022-12-14 10:42:54,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:42:54,324 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 414 transitions. [2022-12-14 10:42:54,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 7.3478260869565215) internal successors, (169), 24 states have internal predecessors, (169), 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 10:42:54,324 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 414 transitions. [2022-12-14 10:42:54,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-12-14 10:42:54,325 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:42:54,325 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:42:54,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-14 10:42:54,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-12-14 10:42:54,526 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-12-14 10:42:54,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:42:54,526 INFO L85 PathProgramCache]: Analyzing trace with hash 935736738, now seen corresponding path program 2 times [2022-12-14 10:42:54,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:42:54,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674007436] [2022-12-14 10:42:54,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:42:54,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:42:54,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:42:54,975 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2022-12-14 10:42:54,976 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:42:54,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674007436] [2022-12-14 10:42:54,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674007436] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:42:54,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586838210] [2022-12-14 10:42:54,976 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 10:42:54,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:42:54,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:42:54,977 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:42:54,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-14 10:42:55,017 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-14 10:42:55,018 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 10:42:55,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 10:42:55,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:42:55,263 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2022-12-14 10:42:55,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:42:55,388 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2022-12-14 10:42:55,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [586838210] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:42:55,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [221713035] [2022-12-14 10:42:55,390 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2022-12-14 10:42:55,390 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:42:55,390 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:42:55,391 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:42:55,391 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:42:55,442 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 10:42:55,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-12-14 10:42:55,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 34 [2022-12-14 10:42:55,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-12-14 10:42:55,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:55,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2022-12-14 10:42:55,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:55,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:55,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:55,567 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:42:55,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:42:55,573 INFO L321 Elim1Store]: treesize reduction 34, result has 2.9 percent of original size [2022-12-14 10:42:55,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 289 treesize of output 268 [2022-12-14 10:42:55,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 10:42:55,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 20 [2022-12-14 10:42:55,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 20 [2022-12-14 10:42:56,222 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 10:42:56,228 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 10:42:59,154 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9841#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~MAX~0 100000) (<= 1 ~SIZE~0) (<= ~SIZE~0 100000) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (< 2147483647 (* 2 |ULTIMATE.start_main_~i~0#1|)) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start_main_~i~0#1| 1073741824) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-12-14 10:42:59,154 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 10:42:59,154 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:42:59,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 3, 2] total 15 [2022-12-14 10:42:59,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527985419] [2022-12-14 10:42:59,155 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 10:42:59,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-14 10:42:59,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:42:59,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-14 10:42:59,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=743, Unknown=0, NotChecked=0, Total=870 [2022-12-14 10:42:59,157 INFO L87 Difference]: Start difference. First operand 387 states and 414 transitions. Second operand has 16 states, 15 states have (on average 7.4) internal successors, (111), 16 states have internal predecessors, (111), 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 10:42:59,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:42:59,665 INFO L93 Difference]: Finished difference Result 766 states and 821 transitions. [2022-12-14 10:42:59,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-14 10:42:59,665 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 7.4) internal successors, (111), 16 states have internal predecessors, (111), 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 138 [2022-12-14 10:42:59,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:42:59,665 INFO L225 Difference]: With dead ends: 766 [2022-12-14 10:42:59,665 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 10:42:59,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 335 SyntacticMatches, 61 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1709 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=250, Invalid=1390, Unknown=0, NotChecked=0, Total=1640 [2022-12-14 10:42:59,666 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 365 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:42:59,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 16 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 10:42:59,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 10:42:59,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 10:42:59,667 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 10:42:59,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 10:42:59,667 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 138 [2022-12-14 10:42:59,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:42:59,667 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 10:42:59,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 7.4) internal successors, (111), 16 states have internal predecessors, (111), 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 10:42:59,667 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 10:42:59,667 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 10:42:59,669 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 32 remaining) [2022-12-14 10:42:59,669 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 32 remaining) [2022-12-14 10:42:59,670 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 32 remaining) [2022-12-14 10:42:59,670 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 32 remaining) [2022-12-14 10:42:59,670 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 32 remaining) [2022-12-14 10:42:59,670 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 32 remaining) [2022-12-14 10:42:59,670 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 32 remaining) [2022-12-14 10:42:59,670 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 32 remaining) [2022-12-14 10:42:59,670 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 32 remaining) [2022-12-14 10:42:59,670 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 32 remaining) [2022-12-14 10:42:59,670 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 32 remaining) [2022-12-14 10:42:59,670 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 32 remaining) [2022-12-14 10:42:59,670 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 32 remaining) [2022-12-14 10:42:59,670 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 32 remaining) [2022-12-14 10:42:59,670 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 32 remaining) [2022-12-14 10:42:59,671 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 32 remaining) [2022-12-14 10:42:59,671 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 32 remaining) [2022-12-14 10:42:59,671 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 32 remaining) [2022-12-14 10:42:59,671 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 32 remaining) [2022-12-14 10:42:59,671 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 32 remaining) [2022-12-14 10:42:59,671 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 32 remaining) [2022-12-14 10:42:59,671 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 32 remaining) [2022-12-14 10:42:59,671 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 32 remaining) [2022-12-14 10:42:59,671 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 32 remaining) [2022-12-14 10:42:59,671 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 32 remaining) [2022-12-14 10:42:59,671 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 32 remaining) [2022-12-14 10:42:59,671 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 32 remaining) [2022-12-14 10:42:59,671 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 32 remaining) [2022-12-14 10:42:59,671 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 32 remaining) [2022-12-14 10:42:59,671 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 32 remaining) [2022-12-14 10:42:59,672 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 32 remaining) [2022-12-14 10:42:59,672 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 32 remaining) [2022-12-14 10:42:59,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-12-14 10:42:59,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-12-14 10:42:59,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 10:43:01,255 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-12-14 10:43:01,256 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2022-12-14 10:43:01,256 INFO L899 garLoopResultBuilder]: For program point L19(lines 19 48) no Hoare annotation was computed. [2022-12-14 10:43:01,256 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2022-12-14 10:43:01,256 INFO L899 garLoopResultBuilder]: For program point L19-1(lines 19 48) no Hoare annotation was computed. [2022-12-14 10:43:01,256 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2022-12-14 10:43:01,256 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 16 50) the Hoare annotation is: true [2022-12-14 10:43:01,256 INFO L899 garLoopResultBuilder]: For program point L44-3(line 44) no Hoare annotation was computed. [2022-12-14 10:43:01,256 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2022-12-14 10:43:01,256 INFO L899 garLoopResultBuilder]: For program point L44-4(line 44) no Hoare annotation was computed. [2022-12-14 10:43:01,256 INFO L895 garLoopResultBuilder]: At program point L44-5(lines 44 47) the Hoare annotation is: (let ((.cse3 (div ~SIZE~0 2))) (let ((.cse0 (not (<= (+ 2147483650 .cse3) 0))) (.cse1 (<= ~SIZE~0 2147483647)) (.cse2 (or (not (<= (+ 2147483649 .cse3) 0)) (not (= ~SIZE~0 (* 2 .cse3)))))) (or (and (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse0 .cse1 .cse2) (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 .cse1 .cse2)))) [2022-12-14 10:43:01,256 INFO L899 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2022-12-14 10:43:01,256 INFO L899 garLoopResultBuilder]: For program point L36-1(line 36) no Hoare annotation was computed. [2022-12-14 10:43:01,256 INFO L899 garLoopResultBuilder]: For program point L36-2(line 36) no Hoare annotation was computed. [2022-12-14 10:43:01,256 INFO L899 garLoopResultBuilder]: For program point L36-3(line 36) no Hoare annotation was computed. [2022-12-14 10:43:01,256 INFO L899 garLoopResultBuilder]: For program point L36-4(line 36) no Hoare annotation was computed. [2022-12-14 10:43:01,256 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2022-12-14 10:43:01,257 INFO L899 garLoopResultBuilder]: For program point L36-5(line 36) no Hoare annotation was computed. [2022-12-14 10:43:01,257 INFO L899 garLoopResultBuilder]: For program point L36-6(line 36) no Hoare annotation was computed. [2022-12-14 10:43:01,257 INFO L899 garLoopResultBuilder]: For program point L36-7(line 36) no Hoare annotation was computed. [2022-12-14 10:43:01,257 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 38) no Hoare annotation was computed. [2022-12-14 10:43:01,257 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2022-12-14 10:43:01,257 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2022-12-14 10:43:01,257 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2022-12-14 10:43:01,257 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 38) no Hoare annotation was computed. [2022-12-14 10:43:01,257 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2022-12-14 10:43:01,257 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2022-12-14 10:43:01,257 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 10:43:01,257 INFO L899 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2022-12-14 10:43:01,257 INFO L899 garLoopResultBuilder]: For program point L38-1(line 38) no Hoare annotation was computed. [2022-12-14 10:43:01,257 INFO L899 garLoopResultBuilder]: For program point L38-2(line 38) no Hoare annotation was computed. [2022-12-14 10:43:01,257 INFO L899 garLoopResultBuilder]: For program point L38-3(lines 38 41) no Hoare annotation was computed. [2022-12-14 10:43:01,257 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW(line 38) no Hoare annotation was computed. [2022-12-14 10:43:01,257 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2022-12-14 10:43:01,258 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2022-12-14 10:43:01,258 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW(line 38) no Hoare annotation was computed. [2022-12-14 10:43:01,258 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2022-12-14 10:43:01,258 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2022-12-14 10:43:01,258 INFO L899 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2022-12-14 10:43:01,258 INFO L899 garLoopResultBuilder]: For program point L40-1(line 40) no Hoare annotation was computed. [2022-12-14 10:43:01,258 INFO L899 garLoopResultBuilder]: For program point L40-2(line 40) no Hoare annotation was computed. [2022-12-14 10:43:01,258 INFO L899 garLoopResultBuilder]: For program point L40-3(line 40) no Hoare annotation was computed. [2022-12-14 10:43:01,258 INFO L899 garLoopResultBuilder]: For program point L40-4(line 40) no Hoare annotation was computed. [2022-12-14 10:43:01,258 INFO L899 garLoopResultBuilder]: For program point L40-5(line 40) no Hoare annotation was computed. [2022-12-14 10:43:01,258 INFO L899 garLoopResultBuilder]: For program point L40-6(line 40) no Hoare annotation was computed. [2022-12-14 10:43:01,258 INFO L899 garLoopResultBuilder]: For program point L40-7(line 40) no Hoare annotation was computed. [2022-12-14 10:43:01,259 INFO L899 garLoopResultBuilder]: For program point L32-1(line 32) no Hoare annotation was computed. [2022-12-14 10:43:01,259 INFO L899 garLoopResultBuilder]: For program point L32-2(lines 32 42) no Hoare annotation was computed. [2022-12-14 10:43:01,259 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2022-12-14 10:43:01,259 INFO L899 garLoopResultBuilder]: For program point L32-4(lines 32 42) no Hoare annotation was computed. [2022-12-14 10:43:01,259 INFO L899 garLoopResultBuilder]: For program point L32-5(line 32) no Hoare annotation was computed. [2022-12-14 10:43:01,259 INFO L899 garLoopResultBuilder]: For program point L32-6(line 32) no Hoare annotation was computed. [2022-12-14 10:43:01,259 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-12-14 10:43:01,259 INFO L895 garLoopResultBuilder]: At program point L32-7(lines 32 42) the Hoare annotation is: (or (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (<= 1 ~SIZE~0) (= |ULTIMATE.start_main_~i~0#1| 1) (= (select |#valid| 3) 1) (<= 100000 ~MAX~0) (<= ~SIZE~0 100000) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (not (= |ULTIMATE.start_assume_abort_if_not_~cond#1| 0)) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (= (select .cse0 1) 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| (ite (= (let ((.cse1 (mod ~SIZE~0 2))) (ite (and (< ~SIZE~0 0) (not (= .cse1 0))) (+ (- 2) .cse1) .cse1)) 0) 1 0)) (<= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~MAX~0 100000) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) (and (< 1 ~SIZE~0) (<= 2 |ULTIMATE.start_main_~i~0#1|) (<= ~SIZE~0 2147483647))) [2022-12-14 10:43:01,259 INFO L899 garLoopResultBuilder]: For program point L32-8(lines 32 42) no Hoare annotation was computed. [2022-12-14 10:43:01,259 INFO L899 garLoopResultBuilder]: For program point L24-3(line 24) no Hoare annotation was computed. [2022-12-14 10:43:01,259 INFO L899 garLoopResultBuilder]: For program point L24-4(line 24) no Hoare annotation was computed. [2022-12-14 10:43:01,259 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2022-12-14 10:43:01,259 INFO L895 garLoopResultBuilder]: At program point L24-5(lines 24 27) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_main_~i~0#1|)) (.cse7 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= 11 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (< 1 ~SIZE~0) (= (select |#valid| 1) 1) (or .cse0 (and (< |ULTIMATE.start_main_~a~0#1.base| |#StackHeapBarrier|) (< ~SIZE~0 ~MAX~0) (= (select |#length| |ULTIMATE.start_main_~a~0#1.base|) (* 4 (mod ~SIZE~0 1073741824))) (not (= 3 |ULTIMATE.start_main_~a~0#1.base|)) (= (select |#valid| |ULTIMATE.start_main_~a~0#1.base|) 1))) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (let ((.cse1 (<= 0 |ULTIMATE.start_main_~a~0#1.offset|)) (.cse2 (<= |#NULL.offset| 0)) (.cse3 (<= 100000 ~MAX~0)) (.cse4 (<= 0 |#NULL.offset|)) (.cse5 (<= |ULTIMATE.start_main_~a~0#1.offset| 0)) (.cse6 (<= ~MAX~0 100000))) (or (and .cse1 (<= |ULTIMATE.start_main_~i~0#1| 0) .cse2 .cse3 (<= 0 |ULTIMATE.start_main_~i~0#1|) .cse4 .cse5 .cse6) (and .cse1 .cse0 (<= |ULTIMATE.start_main_~i~0#1| 2147483647) .cse2 .cse3 (<= ~SIZE~0 100000) .cse4 .cse5 .cse6))) (= (select .cse7 0) 48) (= (select .cse7 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-12-14 10:43:01,259 INFO L899 garLoopResultBuilder]: For program point L24-6(lines 20 48) no Hoare annotation was computed. [2022-12-14 10:43:01,260 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2022-12-14 10:43:01,260 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 10:43:01,260 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2022-12-14 10:43:01,260 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-12-14 10:43:01,260 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2022-12-14 10:43:01,260 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2022-12-14 10:43:01,260 INFO L899 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2022-12-14 10:43:01,260 INFO L899 garLoopResultBuilder]: For program point L34-1(line 34) no Hoare annotation was computed. [2022-12-14 10:43:01,260 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2022-12-14 10:43:01,260 INFO L899 garLoopResultBuilder]: For program point L34-2(line 34) no Hoare annotation was computed. [2022-12-14 10:43:01,260 INFO L899 garLoopResultBuilder]: For program point L34-3(line 34) no Hoare annotation was computed. [2022-12-14 10:43:01,260 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-12-14 10:43:01,260 INFO L899 garLoopResultBuilder]: For program point L34-4(lines 34 37) no Hoare annotation was computed. [2022-12-14 10:43:01,260 INFO L899 garLoopResultBuilder]: For program point L34-6(lines 34 37) no Hoare annotation was computed. [2022-12-14 10:43:01,260 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2022-12-14 10:43:01,260 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2022-12-14 10:43:01,260 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2022-12-14 10:43:01,263 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:43:01,264 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 10:43:01,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 10:43:01 BoogieIcfgContainer [2022-12-14 10:43:01,281 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 10:43:01,281 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 10:43:01,281 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 10:43:01,281 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 10:43:01,282 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:42:22" (3/4) ... [2022-12-14 10:43:01,285 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 10:43:01,294 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-12-14 10:43:01,294 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-12-14 10:43:01,294 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 10:43:01,294 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 10:43:01,311 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((unknown-#length-unknown[3] == 12 && 0 <= a) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && 1 <= SIZE) && i == 1) && \valid[3] == 1) && 100000 <= MAX) && SIZE <= 100000) && \old(cond) == cond) && \valid[1] == 1) && \valid[0] == 0) && !(cond == 0)) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[1][1] == 0) && \old(cond) == (if (if SIZE < 0 && !(SIZE % 2 == 0) then -2 + SIZE % 2 else SIZE % 2) == 0 then 1 else 0)) && a <= 0) && MAX <= 100000) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || ((1 < SIZE && 2 <= i) && SIZE <= 2147483647) [2022-12-14 10:43:01,324 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 10:43:01,325 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 10:43:01,325 INFO L158 Benchmark]: Toolchain (without parser) took 39743.99ms. Allocated memory was 127.9MB in the beginning and 197.1MB in the end (delta: 69.2MB). Free memory was 90.4MB in the beginning and 135.3MB in the end (delta: -44.9MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2022-12-14 10:43:01,325 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 127.9MB. Free memory is still 98.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:43:01,326 INFO L158 Benchmark]: CACSL2BoogieTranslator took 177.97ms. Allocated memory is still 127.9MB. Free memory was 90.4MB in the beginning and 79.6MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 10:43:01,326 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.47ms. Allocated memory is still 127.9MB. Free memory was 79.6MB in the beginning and 77.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 10:43:01,326 INFO L158 Benchmark]: Boogie Preprocessor took 25.21ms. Allocated memory is still 127.9MB. Free memory was 77.9MB in the beginning and 76.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:43:01,326 INFO L158 Benchmark]: RCFGBuilder took 417.33ms. Allocated memory is still 127.9MB. Free memory was 76.6MB in the beginning and 59.0MB in the end (delta: 17.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 10:43:01,327 INFO L158 Benchmark]: TraceAbstraction took 39040.59ms. Allocated memory was 127.9MB in the beginning and 197.1MB in the end (delta: 69.2MB). Free memory was 58.2MB in the beginning and 138.5MB in the end (delta: -80.3MB). Peak memory consumption was 80.9MB. Max. memory is 16.1GB. [2022-12-14 10:43:01,327 INFO L158 Benchmark]: Witness Printer took 43.51ms. Allocated memory is still 197.1MB. Free memory was 138.5MB in the beginning and 135.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 10:43:01,328 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 127.9MB. Free memory is still 98.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 177.97ms. Allocated memory is still 127.9MB. Free memory was 90.4MB in the beginning and 79.6MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.47ms. Allocated memory is still 127.9MB. Free memory was 79.6MB in the beginning and 77.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.21ms. Allocated memory is still 127.9MB. Free memory was 77.9MB in the beginning and 76.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 417.33ms. Allocated memory is still 127.9MB. Free memory was 76.6MB in the beginning and 59.0MB in the end (delta: 17.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 39040.59ms. Allocated memory was 127.9MB in the beginning and 197.1MB in the end (delta: 69.2MB). Free memory was 58.2MB in the beginning and 138.5MB in the end (delta: -80.3MB). Peak memory consumption was 80.9MB. Max. memory is 16.1GB. * Witness Printer took 43.51ms. Allocated memory is still 197.1MB. Free memory was 138.5MB in the beginning and 135.3MB in the end (delta: 3.1MB). 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: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: 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, 77 locations, 32 error locations. Started 1 CEGAR loops. OverallTime: 39.0s, OverallIterations: 18, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 9.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2285 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2285 mSDsluCounter, 1586 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 952 mSDsCounter, 304 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4903 IncrementalHoareTripleChecker+Invalid, 5207 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 304 mSolverCounterUnsat, 634 mSDtfsCounter, 4903 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1419 GetRequests, 946 SyntacticMatches, 145 SemanticMatches, 328 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5719 ImplicationChecksByTransitivity, 20.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=387occurred in iteration=17, InterpolantAutomatonStates: 169, 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, 18 MinimizatonAttempts, 409 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 48 NumberOfFragments, 332 HoareAnnotationTreeSize, 4 FomulaSimplifications, 1235 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 4 FomulaSimplificationsInter, 17885 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 1118 NumberOfCodeBlocks, 964 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 1471 ConstructedInterpolants, 0 QuantifiedInterpolants, 6373 SizeOfPredicates, 28 NumberOfNonLiveVariables, 1216 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 39 InterpolantComputations, 9 PerfectInterpolantSequences, 1309/1584 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: OVERALL_TIME: 1.8s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 63, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 209, TOOLS_POST_TIME: 1.5s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 209, TOOLS_QUANTIFIERELIM_TIME: 1.4s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 312, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 21, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 12, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 18, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 63, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 6, LOOP_SUMMARIZER_CACHE_MISSES: 6, LOOP_SUMMARIZER_OVERALL_TIME: 1.1s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 1.1s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 18, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 1870, DAG_COMPRESSION_RETAINED_NODES: 203, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 32 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: ((((((((((((unknown-#length-unknown[3] == 12 && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && 1 < SIZE) && \valid[1] == 1) && (1 <= i || ((((a < unknown-#StackHeapBarrier-unknown && SIZE < MAX) && unknown-#length-unknown[a] == 4 * (SIZE % 1073741824)) && !(3 == a)) && \valid[a] == 1))) && \valid[0] == 0) && \valid[2] == 1) && ((((((((0 <= a && i <= 0) && #NULL <= 0) && 100000 <= MAX) && 0 <= i) && 0 <= #NULL) && a <= 0) && MAX <= 100000) || ((((((((0 <= a && 1 <= i) && i <= 2147483647) && #NULL <= 0) && 100000 <= MAX) && SIZE <= 100000) && 0 <= #NULL) && a <= 0) && MAX <= 100000))) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((((((((((((((((((unknown-#length-unknown[3] == 12 && 0 <= a) && 11 == unknown-#length-unknown[2]) && 2 == unknown-#length-unknown[1]) && 1 <= SIZE) && i == 1) && \valid[3] == 1) && 100000 <= MAX) && SIZE <= 100000) && \old(cond) == cond) && \valid[1] == 1) && \valid[0] == 0) && !(cond == 0)) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[1][1] == 0) && \old(cond) == (if (if SIZE < 0 && !(SIZE % 2 == 0) then -2 + SIZE % 2 else SIZE % 2) == 0 then 1 else 0)) && a <= 0) && MAX <= 100000) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || ((1 < SIZE && 2 <= i) && SIZE <= 2147483647) - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: (((1 <= i && !(2147483650 + SIZE / 2 <= 0)) && SIZE <= 2147483647) && (!(2147483649 + SIZE / 2 <= 0) || !(SIZE == 2 * (SIZE / 2)))) || (((i == 0 && !(2147483650 + SIZE / 2 <= 0)) && SIZE <= 2147483647) && (!(2147483649 + SIZE / 2 <= 0) || !(SIZE == 2 * (SIZE / 2)))) RESULT: Ultimate proved your program to be correct! [2022-12-14 10:43:01,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbcf9718-1d71-4b78-853b-c822379ff9f4/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