./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/reducercommutativity/sum10-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/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_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/reducercommutativity/sum10-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f341d659968a9193c951bd8eec2bcf2a384f8494a1f57cb579da98ce5ebdb030 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 09:27:44,546 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:27:44,548 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:27:44,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:27:44,562 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:27:44,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:27:44,564 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:27:44,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:27:44,566 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:27:44,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:27:44,568 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:27:44,581 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:27:44,581 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:27:44,582 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:27:44,583 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:27:44,583 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:27:44,584 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:27:44,584 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:27:44,585 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:27:44,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:27:44,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:27:44,588 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:27:44,589 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:27:44,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:27:44,597 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:27:44,597 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:27:44,597 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:27:44,598 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:27:44,598 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:27:44,599 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:27:44,599 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:27:44,599 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:27:44,600 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:27:44,600 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:27:44,601 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:27:44,601 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:27:44,602 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:27:44,602 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:27:44,602 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:27:44,602 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:27:44,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:27:44,603 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 09:27:44,618 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:27:44,618 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:27:44,618 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:27:44,618 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:27:44,618 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:27:44,619 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:27:44,619 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:27:44,619 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:27:44,619 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:27:44,619 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:27:44,619 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:27:44,619 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:27:44,619 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:27:44,619 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:27:44,619 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:27:44,620 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:27:44,620 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:27:44,620 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:27:44,620 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:27:44,620 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 09:27:44,620 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:27:44,620 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 09:27:44,621 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:27:44,621 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:27:44,621 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:27:44,621 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:27:44,621 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 09:27:44,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:27:44,621 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:27:44,621 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:27:44,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:27:44,621 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:27:44,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:27:44,622 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:27:44,622 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:27:44,622 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:27:44,622 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:27:44,622 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:27:44,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:27:44,622 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:27:44,622 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:27:44,622 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f341d659968a9193c951bd8eec2bcf2a384f8494a1f57cb579da98ce5ebdb030 [2022-12-14 09:27:44,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:27:44,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:27:44,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:27:44,799 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:27:44,799 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:27:44,800 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/reducercommutativity/sum10-1.i [2022-12-14 09:27:47,353 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:27:47,500 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:27:47,501 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/sv-benchmarks/c/reducercommutativity/sum10-1.i [2022-12-14 09:27:47,505 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/data/a1274e50c/cd6d40fc52644ba19fa3b89350ad0abf/FLAG71634a9fb [2022-12-14 09:27:47,515 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/data/a1274e50c/cd6d40fc52644ba19fa3b89350ad0abf [2022-12-14 09:27:47,517 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:27:47,518 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:27:47,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:27:47,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:27:47,521 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:27:47,522 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:27:47" (1/1) ... [2022-12-14 09:27:47,523 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a420210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:27:47, skipping insertion in model container [2022-12-14 09:27:47,523 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:27:47" (1/1) ... [2022-12-14 09:27:47,528 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:27:47,541 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:27:47,671 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_38839c95-6254-49fa-b368-a2db4c3fbc2e/sv-benchmarks/c/reducercommutativity/sum10-1.i[1277,1290] [2022-12-14 09:27:47,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:27:47,681 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:27:47,695 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_38839c95-6254-49fa-b368-a2db4c3fbc2e/sv-benchmarks/c/reducercommutativity/sum10-1.i[1277,1290] [2022-12-14 09:27:47,696 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:27:47,706 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:27:47,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:27:47 WrapperNode [2022-12-14 09:27:47,706 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:27:47,707 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:27:47,707 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:27:47,707 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:27:47,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:27:47" (1/1) ... [2022-12-14 09:27:47,718 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:27:47" (1/1) ... [2022-12-14 09:27:47,730 INFO L138 Inliner]: procedures = 16, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 67 [2022-12-14 09:27:47,731 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:27:47,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:27:47,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:27:47,731 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:27:47,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:27:47" (1/1) ... [2022-12-14 09:27:47,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:27:47" (1/1) ... [2022-12-14 09:27:47,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:27:47" (1/1) ... [2022-12-14 09:27:47,740 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:27:47" (1/1) ... [2022-12-14 09:27:47,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:27:47" (1/1) ... [2022-12-14 09:27:47,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:27:47" (1/1) ... [2022-12-14 09:27:47,748 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:27:47" (1/1) ... [2022-12-14 09:27:47,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:27:47" (1/1) ... [2022-12-14 09:27:47,752 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:27:47,752 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:27:47,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:27:47,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:27:47,753 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:27:47" (1/1) ... [2022-12-14 09:27:47,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:27:47,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:27:47,776 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:27:47,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:27:47,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:27:47,809 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2022-12-14 09:27:47,809 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2022-12-14 09:27:47,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:27:47,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 09:27:47,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 09:27:47,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:27:47,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:27:47,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 09:27:47,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 09:27:47,868 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:27:47,869 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:27:47,978 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:27:48,005 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:27:48,006 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-14 09:27:48,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:27:48 BoogieIcfgContainer [2022-12-14 09:27:48,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:27:48,010 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:27:48,010 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:27:48,012 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:27:48,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:27:47" (1/3) ... [2022-12-14 09:27:48,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19109261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:27:48, skipping insertion in model container [2022-12-14 09:27:48,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:27:47" (2/3) ... [2022-12-14 09:27:48,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19109261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:27:48, skipping insertion in model container [2022-12-14 09:27:48,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:27:48" (3/3) ... [2022-12-14 09:27:48,015 INFO L112 eAbstractionObserver]: Analyzing ICFG sum10-1.i [2022-12-14 09:27:48,030 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:27:48,030 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 09:27:48,066 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:27:48,071 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;@4a527b40, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:27:48,071 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 09:27:48,074 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 09:27:48,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 09:27:48,080 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:27:48,081 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:27:48,081 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:27:48,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:27:48,085 INFO L85 PathProgramCache]: Analyzing trace with hash -93755173, now seen corresponding path program 1 times [2022-12-14 09:27:48,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:27:48,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578822573] [2022-12-14 09:27:48,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:27:48,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:27:48,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:27:48,315 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 09:27:48,316 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:27:48,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578822573] [2022-12-14 09:27:48,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578822573] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:27:48,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:27:48,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:27:48,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391068683] [2022-12-14 09:27:48,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:27:48,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:27:48,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:27:48,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:27:48,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:27:48,345 INFO L87 Difference]: Start difference. First operand has 17 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 09:27:48,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:27:48,383 INFO L93 Difference]: Finished difference Result 33 states and 43 transitions. [2022-12-14 09:27:48,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:27:48,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2022-12-14 09:27:48,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:27:48,390 INFO L225 Difference]: With dead ends: 33 [2022-12-14 09:27:48,390 INFO L226 Difference]: Without dead ends: 16 [2022-12-14 09:27:48,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:27:48,396 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:27:48,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:27:48,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-12-14 09:27:48,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-12-14 09:27:48,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 09:27:48,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2022-12-14 09:27:48,425 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 20 [2022-12-14 09:27:48,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:27:48,425 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2022-12-14 09:27:48,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 09:27:48,425 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2022-12-14 09:27:48,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 09:27:48,426 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:27:48,427 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:27:48,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:27:48,427 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:27:48,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:27:48,428 INFO L85 PathProgramCache]: Analyzing trace with hash 3079074, now seen corresponding path program 1 times [2022-12-14 09:27:48,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:27:48,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107377238] [2022-12-14 09:27:48,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:27:48,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:27:48,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:27:48,535 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 09:27:48,536 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:27:48,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107377238] [2022-12-14 09:27:48,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107377238] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:27:48,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591289462] [2022-12-14 09:27:48,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:27:48,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:27:48,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:27:48,538 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:27:48,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 09:27:48,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:27:48,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 09:27:48,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:27:48,627 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 09:27:48,627 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 09:27:48,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591289462] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:27:48,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 09:27:48,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-12-14 09:27:48,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402270087] [2022-12-14 09:27:48,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:27:48,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:27:48,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:27:48,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:27:48,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:27:48,630 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 09:27:48,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:27:48,648 INFO L93 Difference]: Finished difference Result 29 states and 39 transitions. [2022-12-14 09:27:48,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:27:48,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2022-12-14 09:27:48,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:27:48,649 INFO L225 Difference]: With dead ends: 29 [2022-12-14 09:27:48,649 INFO L226 Difference]: Without dead ends: 17 [2022-12-14 09:27:48,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:27:48,651 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:27:48,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:27:48,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-14 09:27:48,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-12-14 09:27:48,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 09:27:48,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2022-12-14 09:27:48,657 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 21 [2022-12-14 09:27:48,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:27:48,657 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2022-12-14 09:27:48,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 09:27:48,657 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2022-12-14 09:27:48,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 09:27:48,658 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:27:48,658 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:27:48,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 09:27:48,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:27:48,861 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:27:48,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:27:48,864 INFO L85 PathProgramCache]: Analyzing trace with hash 343123431, now seen corresponding path program 1 times [2022-12-14 09:27:48,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:27:48,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834222781] [2022-12-14 09:27:48,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:27:48,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:27:48,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:27:49,013 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-14 09:27:49,013 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:27:49,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834222781] [2022-12-14 09:27:49,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834222781] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:27:49,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441368487] [2022-12-14 09:27:49,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:27:49,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:27:49,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:27:49,015 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:27:49,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 09:27:49,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:27:49,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 09:27:49,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:27:49,093 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 09:27:49,094 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 09:27:49,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [441368487] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:27:49,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 09:27:49,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-12-14 09:27:49,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136886883] [2022-12-14 09:27:49,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:27:49,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:27:49,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:27:49,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:27:49,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:27:49,096 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 09:27:49,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:27:49,113 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2022-12-14 09:27:49,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:27:49,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2022-12-14 09:27:49,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:27:49,114 INFO L225 Difference]: With dead ends: 27 [2022-12-14 09:27:49,115 INFO L226 Difference]: Without dead ends: 18 [2022-12-14 09:27:49,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:27:49,116 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:27:49,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:27:49,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-12-14 09:27:49,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-12-14 09:27:49,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 09:27:49,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2022-12-14 09:27:49,120 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 24 [2022-12-14 09:27:49,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:27:49,121 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2022-12-14 09:27:49,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 09:27:49,121 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2022-12-14 09:27:49,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 09:27:49,122 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:27:49,122 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:27:49,127 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 09:27:49,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:27:49,323 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:27:49,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:27:49,324 INFO L85 PathProgramCache]: Analyzing trace with hash 280539732, now seen corresponding path program 1 times [2022-12-14 09:27:49,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:27:49,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147639465] [2022-12-14 09:27:49,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:27:49,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:27:49,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:27:49,388 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 09:27:49,389 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:27:49,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147639465] [2022-12-14 09:27:49,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147639465] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:27:49,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048080525] [2022-12-14 09:27:49,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:27:49,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:27:49,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:27:49,391 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:27:49,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 09:27:49,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:27:49,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:27:49,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:27:49,499 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 09:27:49,500 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:27:49,527 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 09:27:49,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2048080525] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:27:49,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1305569965] [2022-12-14 09:27:49,547 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-12-14 09:27:49,547 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:27:49,551 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:27:49,556 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:27:49,556 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:27:49,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:27:49,635 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 09:27:49,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-12-14 09:27:49,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:27:49,662 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:27:49,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 09:27:49,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:27:49,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-12-14 09:27:49,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:27:49,757 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:27:49,778 INFO L321 Elim1Store]: treesize reduction 54, result has 28.0 percent of original size [2022-12-14 09:27:49,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 186 treesize of output 185 [2022-12-14 09:27:49,862 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 16 treesize of output 12 [2022-12-14 09:27:49,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:27:49,932 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 0 case distinctions, treesize of input 30 treesize of output 20 [2022-12-14 09:27:50,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:27:50,030 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 0 case distinctions, treesize of input 25 treesize of output 20 [2022-12-14 09:27:50,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:27:50,084 INFO L321 Elim1Store]: treesize reduction 45, result has 34.8 percent of original size [2022-12-14 09:27:50,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 72 treesize of output 80 [2022-12-14 09:27:50,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2022-12-14 09:27:50,156 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 13 treesize of output 9 [2022-12-14 09:27:50,245 INFO L197 IcfgInterpreter]: Interpreting procedure sum with input of size 12 for LOIs [2022-12-14 09:27:50,268 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:27:54,984 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '524#(and (<= 9 |ULTIMATE.start_main_~i~2#1|) (<= 0 |#NULL.base|) (<= |ULTIMATE.start_main_~ret2~0#1| 2147483647) (exists ((v_sum_~ret~0_BEFORE_RETURN_6 Int)) (= |ULTIMATE.start_main_~ret5~0#1| (ite (<= (mod v_sum_~ret~0_BEFORE_RETURN_6 4294967296) 2147483647) (mod v_sum_~ret~0_BEFORE_RETURN_6 4294967296) (+ (mod v_sum_~ret~0_BEFORE_RETURN_6 4294967296) (- 4294967296))))) (<= 0 |ULTIMATE.start_main_~#x~0#1.offset|) (or (not (= |ULTIMATE.start_main_~ret2~0#1| |ULTIMATE.start_main_~ret~1#1|)) (not (= |ULTIMATE.start_main_~ret5~0#1| |ULTIMATE.start_main_~ret~1#1|))) (<= 0 (+ |ULTIMATE.start_main_~ret~1#1| 2147483648)) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~ret~1#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~ret2~0#1| 2147483648)) (<= |#NULL.base| 0) (<= 10 |ULTIMATE.start_main_~i~1#1|) (= |ULTIMATE.start_main_~temp~0#1| (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ 36 |ULTIMATE.start_main_~#x~0#1.offset|))) (<= 0 |ULTIMATE.start_main_~#x~0#1.base|) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~#x~0#1.offset| 0) (<= 0 |#StackHeapBarrier|))' at error location [2022-12-14 09:27:54,984 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:27:54,984 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:27:54,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 7 [2022-12-14 09:27:54,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304075283] [2022-12-14 09:27:54,985 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:27:54,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 09:27:54,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:27:54,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 09:27:54,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2022-12-14 09:27:54,986 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-12-14 09:27:55,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:27:55,010 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2022-12-14 09:27:55,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:27:55,011 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 25 [2022-12-14 09:27:55,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:27:55,011 INFO L225 Difference]: With dead ends: 36 [2022-12-14 09:27:55,011 INFO L226 Difference]: Without dead ends: 21 [2022-12-14 09:27:55,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2022-12-14 09:27:55,013 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:27:55,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:27:55,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-12-14 09:27:55,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-12-14 09:27:55,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 09:27:55,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2022-12-14 09:27:55,017 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 25 [2022-12-14 09:27:55,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:27:55,017 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2022-12-14 09:27:55,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-12-14 09:27:55,018 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2022-12-14 09:27:55,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 09:27:55,018 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:27:55,018 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:27:55,024 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 09:27:55,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:27:55,220 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:27:55,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:27:55,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1372130099, now seen corresponding path program 2 times [2022-12-14 09:27:55,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:27:55,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405568515] [2022-12-14 09:27:55,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:27:55,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:27:55,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:27:55,279 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-14 09:27:55,279 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:27:55,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405568515] [2022-12-14 09:27:55,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405568515] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:27:55,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695676860] [2022-12-14 09:27:55,280 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 09:27:55,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:27:55,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:27:55,281 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:27:55,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 09:27:55,329 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-14 09:27:55,330 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 09:27:55,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:27:55,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:27:55,339 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-14 09:27:55,339 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:27:55,355 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-14 09:27:55,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695676860] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:27:55,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [372943706] [2022-12-14 09:27:55,357 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-12-14 09:27:55,357 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:27:55,357 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:27:55,357 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:27:55,357 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:27:55,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:27:55,378 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:27:55,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 09:27:55,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:27:55,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 09:27:55,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:27:55,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2022-12-14 09:27:55,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:27:55,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:27:55,440 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-12-14 09:27:55,441 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 196 treesize of output 184 [2022-12-14 09:27:55,466 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 16 treesize of output 12 [2022-12-14 09:27:55,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:27:55,517 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 0 case distinctions, treesize of input 30 treesize of output 20 [2022-12-14 09:27:55,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:27:55,606 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:27:55,607 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 0 case distinctions, treesize of input 32 treesize of output 27 [2022-12-14 09:27:55,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:27:55,638 INFO L321 Elim1Store]: treesize reduction 45, result has 6.3 percent of original size [2022-12-14 09:27:55,638 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 3 case distinctions, treesize of input 80 treesize of output 72 [2022-12-14 09:27:55,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2022-12-14 09:27:55,667 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 13 treesize of output 9 [2022-12-14 09:27:55,755 INFO L197 IcfgInterpreter]: Interpreting procedure sum with input of size 12 for LOIs [2022-12-14 09:27:55,778 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:28:02,352 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '797#(and (<= 9 |ULTIMATE.start_main_~i~2#1|) (<= |ULTIMATE.start_main_~ret2~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~#x~0#1.offset|) (or (not (= |ULTIMATE.start_main_~ret2~0#1| |ULTIMATE.start_main_~ret~1#1|)) (not (= |ULTIMATE.start_main_~ret5~0#1| |ULTIMATE.start_main_~ret~1#1|))) (<= 0 (+ |ULTIMATE.start_main_~ret~1#1| 2147483648)) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~ret~1#1| 2147483647) (exists ((v_sum_~ret~0_BEFORE_RETURN_11 Int)) (= |ULTIMATE.start_main_~ret5~0#1| (ite (<= (mod v_sum_~ret~0_BEFORE_RETURN_11 4294967296) 2147483647) (mod v_sum_~ret~0_BEFORE_RETURN_11 4294967296) (+ (mod v_sum_~ret~0_BEFORE_RETURN_11 4294967296) (- 4294967296))))) (<= 0 (+ |ULTIMATE.start_main_~ret2~0#1| 2147483648)) (<= 10 |ULTIMATE.start_main_~i~1#1|) (= |ULTIMATE.start_main_~temp~0#1| (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ 36 |ULTIMATE.start_main_~#x~0#1.offset|))) (<= 0 |ULTIMATE.start_main_~#x~0#1.base|) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~#x~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 09:28:02,352 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:28:02,352 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:28:02,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-12-14 09:28:02,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952559036] [2022-12-14 09:28:02,352 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:28:02,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 09:28:02,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:28:02,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 09:28:02,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2022-12-14 09:28:02,353 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-14 09:28:02,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:28:02,371 INFO L93 Difference]: Finished difference Result 38 states and 50 transitions. [2022-12-14 09:28:02,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:28:02,371 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 28 [2022-12-14 09:28:02,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:28:02,372 INFO L225 Difference]: With dead ends: 38 [2022-12-14 09:28:02,372 INFO L226 Difference]: Without dead ends: 24 [2022-12-14 09:28:02,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2022-12-14 09:28:02,373 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:28:02,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:28:02,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-12-14 09:28:02,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-12-14 09:28:02,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 09:28:02,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2022-12-14 09:28:02,377 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 28 [2022-12-14 09:28:02,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:28:02,377 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2022-12-14 09:28:02,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-14 09:28:02,377 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2022-12-14 09:28:02,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-12-14 09:28:02,378 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:28:02,378 INFO L195 NwaCegarLoop]: trace histogram [12, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:28:02,382 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 09:28:02,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:28:02,580 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:28:02,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:28:02,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1727192144, now seen corresponding path program 3 times [2022-12-14 09:28:02,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:28:02,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683824182] [2022-12-14 09:28:02,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:28:02,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:28:02,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:28:02,645 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-12-14 09:28:02,645 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:28:02,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683824182] [2022-12-14 09:28:02,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683824182] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:28:02,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090982561] [2022-12-14 09:28:02,645 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 09:28:02,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:28:02,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:28:02,647 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:28:02,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 09:28:02,715 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 09:28:02,715 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 09:28:02,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 09:28:02,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:28:02,748 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 52 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-14 09:28:02,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:28:02,801 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-14 09:28:02,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2090982561] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:28:02,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [491974261] [2022-12-14 09:28:02,804 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-12-14 09:28:02,804 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:28:02,804 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:28:02,804 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:28:02,804 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:28:02,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:02,829 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:28:02,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 09:28:02,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:02,837 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 09:28:02,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:02,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2022-12-14 09:28:02,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:02,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:02,910 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-12-14 09:28:02,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 196 treesize of output 184 [2022-12-14 09:28:02,942 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 16 treesize of output 12 [2022-12-14 09:28:02,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:02,989 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 0 case distinctions, treesize of input 30 treesize of output 20 [2022-12-14 09:28:03,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:03,059 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:28:03,060 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 0 case distinctions, treesize of input 32 treesize of output 27 [2022-12-14 09:28:03,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:03,090 INFO L321 Elim1Store]: treesize reduction 45, result has 6.3 percent of original size [2022-12-14 09:28:03,090 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 3 case distinctions, treesize of input 80 treesize of output 72 [2022-12-14 09:28:03,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2022-12-14 09:28:03,117 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 13 treesize of output 9 [2022-12-14 09:28:03,194 INFO L197 IcfgInterpreter]: Interpreting procedure sum with input of size 12 for LOIs [2022-12-14 09:28:03,213 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:28:09,886 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1141#(and (exists ((v_sum_~ret~0_BEFORE_RETURN_17 Int)) (= |ULTIMATE.start_main_~ret5~0#1| (ite (<= (mod v_sum_~ret~0_BEFORE_RETURN_17 4294967296) 2147483647) (mod v_sum_~ret~0_BEFORE_RETURN_17 4294967296) (+ (mod v_sum_~ret~0_BEFORE_RETURN_17 4294967296) (- 4294967296))))) (<= 9 |ULTIMATE.start_main_~i~2#1|) (<= |ULTIMATE.start_main_~ret2~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~#x~0#1.offset|) (or (not (= |ULTIMATE.start_main_~ret2~0#1| |ULTIMATE.start_main_~ret~1#1|)) (not (= |ULTIMATE.start_main_~ret5~0#1| |ULTIMATE.start_main_~ret~1#1|))) (<= 0 (+ |ULTIMATE.start_main_~ret~1#1| 2147483648)) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~ret~1#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~ret2~0#1| 2147483648)) (<= 10 |ULTIMATE.start_main_~i~1#1|) (= |ULTIMATE.start_main_~temp~0#1| (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ 36 |ULTIMATE.start_main_~#x~0#1.offset|))) (<= 0 |ULTIMATE.start_main_~#x~0#1.base|) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~#x~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 09:28:09,886 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:28:09,886 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:28:09,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 14 [2022-12-14 09:28:09,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135373952] [2022-12-14 09:28:09,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:28:09,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 09:28:09,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:28:09,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 09:28:09,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=571, Unknown=0, NotChecked=0, Total=702 [2022-12-14 09:28:09,888 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-14 09:28:09,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:28:09,916 INFO L93 Difference]: Finished difference Result 48 states and 64 transitions. [2022-12-14 09:28:09,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 09:28:09,916 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 37 [2022-12-14 09:28:09,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:28:09,917 INFO L225 Difference]: With dead ends: 48 [2022-12-14 09:28:09,917 INFO L226 Difference]: Without dead ends: 31 [2022-12-14 09:28:09,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=131, Invalid=571, Unknown=0, NotChecked=0, Total=702 [2022-12-14 09:28:09,918 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:28:09,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:28:09,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-12-14 09:28:09,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-12-14 09:28:09,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 26 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 09:28:09,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2022-12-14 09:28:09,922 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 37 [2022-12-14 09:28:09,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:28:09,923 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2022-12-14 09:28:09,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-14 09:28:09,923 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2022-12-14 09:28:09,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-14 09:28:09,924 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:28:09,924 INFO L195 NwaCegarLoop]: trace histogram [30, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:28:09,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 09:28:10,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:28:10,126 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:28:10,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:28:10,127 INFO L85 PathProgramCache]: Analyzing trace with hash 379262555, now seen corresponding path program 4 times [2022-12-14 09:28:10,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:28:10,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816549676] [2022-12-14 09:28:10,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:28:10,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:28:10,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:28:10,265 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2022-12-14 09:28:10,265 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:28:10,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816549676] [2022-12-14 09:28:10,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816549676] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:28:10,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768754042] [2022-12-14 09:28:10,265 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-14 09:28:10,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:28:10,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:28:10,267 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:28:10,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 09:28:10,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:28:10,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 09:28:10,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:28:10,344 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2022-12-14 09:28:10,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:28:10,389 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2022-12-14 09:28:10,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768754042] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:28:10,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1881552829] [2022-12-14 09:28:10,391 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-12-14 09:28:10,391 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:28:10,392 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:28:10,392 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:28:10,392 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:28:10,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:10,410 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 09:28:10,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-12-14 09:28:10,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:10,426 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:28:10,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 09:28:10,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:10,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2022-12-14 09:28:10,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:10,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:10,479 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-12-14 09:28:10,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 196 treesize of output 184 [2022-12-14 09:28:10,507 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 16 treesize of output 12 [2022-12-14 09:28:10,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:10,548 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 0 case distinctions, treesize of input 30 treesize of output 20 [2022-12-14 09:28:10,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:10,619 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:28:10,620 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 0 case distinctions, treesize of input 32 treesize of output 27 [2022-12-14 09:28:10,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:10,647 INFO L321 Elim1Store]: treesize reduction 45, result has 6.3 percent of original size [2022-12-14 09:28:10,648 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 3 case distinctions, treesize of input 80 treesize of output 72 [2022-12-14 09:28:10,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2022-12-14 09:28:10,676 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 13 treesize of output 9 [2022-12-14 09:28:10,751 INFO L197 IcfgInterpreter]: Interpreting procedure sum with input of size 12 for LOIs [2022-12-14 09:28:10,769 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:28:15,465 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1632#(and (<= 9 |ULTIMATE.start_main_~i~2#1|) (<= |ULTIMATE.start_main_~ret2~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~#x~0#1.offset|) (or (not (= |ULTIMATE.start_main_~ret2~0#1| |ULTIMATE.start_main_~ret~1#1|)) (not (= |ULTIMATE.start_main_~ret5~0#1| |ULTIMATE.start_main_~ret~1#1|))) (<= 0 (+ |ULTIMATE.start_main_~ret~1#1| 2147483648)) (<= |#NULL.offset| 0) (<= 0 (+ |ULTIMATE.start_main_~ret5~0#1| 2147483648)) (<= |ULTIMATE.start_main_~ret~1#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~ret2~0#1| 2147483648)) (<= 10 |ULTIMATE.start_main_~i~1#1|) (<= |ULTIMATE.start_main_~ret5~0#1| 2147483647) (= |ULTIMATE.start_main_~temp~0#1| (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ 36 |ULTIMATE.start_main_~#x~0#1.offset|))) (<= 0 |ULTIMATE.start_main_~#x~0#1.base|) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~#x~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 09:28:15,465 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:28:15,465 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:28:15,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 13 [2022-12-14 09:28:15,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861107638] [2022-12-14 09:28:15,465 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:28:15,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 09:28:15,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:28:15,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 09:28:15,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=512, Unknown=1, NotChecked=0, Total=650 [2022-12-14 09:28:15,467 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 13 states have internal predecessors, (27), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-12-14 09:28:15,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:28:15,501 INFO L93 Difference]: Finished difference Result 62 states and 75 transitions. [2022-12-14 09:28:15,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 09:28:15,501 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 13 states have internal predecessors, (27), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 56 [2022-12-14 09:28:15,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:28:15,502 INFO L225 Difference]: With dead ends: 62 [2022-12-14 09:28:15,502 INFO L226 Difference]: Without dead ends: 37 [2022-12-14 09:28:15,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=137, Invalid=512, Unknown=1, NotChecked=0, Total=650 [2022-12-14 09:28:15,503 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:28:15,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:28:15,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-12-14 09:28:15,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-12-14 09:28:15,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 32 states have (on average 1.09375) internal successors, (35), 32 states have internal predecessors, (35), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 09:28:15,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2022-12-14 09:28:15,508 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 56 [2022-12-14 09:28:15,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:28:15,508 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2022-12-14 09:28:15,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 13 states have internal predecessors, (27), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-12-14 09:28:15,508 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2022-12-14 09:28:15,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-12-14 09:28:15,509 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:28:15,509 INFO L195 NwaCegarLoop]: trace histogram [30, 10, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:28:15,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 09:28:15,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:28:15,711 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:28:15,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:28:15,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1417881851, now seen corresponding path program 5 times [2022-12-14 09:28:15,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:28:15,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590907367] [2022-12-14 09:28:15,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:28:15,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:28:15,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:28:15,838 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2022-12-14 09:28:15,838 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:28:15,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590907367] [2022-12-14 09:28:15,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590907367] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:28:15,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459694318] [2022-12-14 09:28:15,838 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 09:28:15,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:28:15,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:28:15,840 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:28:15,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 09:28:15,914 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-14 09:28:15,914 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 09:28:15,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 09:28:15,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:28:15,929 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 246 proven. 3 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2022-12-14 09:28:15,929 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:28:15,961 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2022-12-14 09:28:15,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459694318] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:28:15,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1578754945] [2022-12-14 09:28:15,964 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-12-14 09:28:15,964 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:28:15,964 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:28:15,964 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:28:15,964 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:28:15,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:15,982 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 09:28:15,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-12-14 09:28:15,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:15,999 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:28:15,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 09:28:16,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:16,012 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-12-14 09:28:16,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:16,043 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:28:16,060 INFO L321 Elim1Store]: treesize reduction 54, result has 28.0 percent of original size [2022-12-14 09:28:16,061 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 186 treesize of output 185 [2022-12-14 09:28:16,096 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 16 treesize of output 12 [2022-12-14 09:28:16,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:16,127 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 0 case distinctions, treesize of input 30 treesize of output 20 [2022-12-14 09:28:16,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:16,179 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 0 case distinctions, treesize of input 25 treesize of output 20 [2022-12-14 09:28:16,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:16,221 INFO L321 Elim1Store]: treesize reduction 45, result has 34.8 percent of original size [2022-12-14 09:28:16,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 72 treesize of output 80 [2022-12-14 09:28:16,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2022-12-14 09:28:16,260 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 13 treesize of output 9 [2022-12-14 09:28:16,325 INFO L197 IcfgInterpreter]: Interpreting procedure sum with input of size 12 for LOIs [2022-12-14 09:28:16,343 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:28:16,949 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2195#(and (<= 9 |ULTIMATE.start_main_~i~2#1|) (<= |ULTIMATE.start_main_~ret2~0#1| 2147483647) (or (not (= |ULTIMATE.start_main_~ret2~0#1| |ULTIMATE.start_main_~ret~1#1|)) (not (= |ULTIMATE.start_main_~ret5~0#1| |ULTIMATE.start_main_~ret~1#1|))) (<= 0 (+ |ULTIMATE.start_main_~ret~1#1| 2147483648)) (<= |ULTIMATE.start_main_~ret~1#1| 2147483647) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (<= 0 (+ |ULTIMATE.start_main_~ret2~0#1| 2147483648)) (<= 10 |ULTIMATE.start_main_~i~1#1|) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~temp~0#1| (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ 36 |ULTIMATE.start_main_~#x~0#1.offset|))) (<= 0 |ULTIMATE.start_main_~#x~0#1.base|) (exists ((v_sum_~ret~0_BEFORE_RETURN_29 Int)) (= |ULTIMATE.start_main_~ret5~0#1| (ite (<= (mod v_sum_~ret~0_BEFORE_RETURN_29 4294967296) 2147483647) (mod v_sum_~ret~0_BEFORE_RETURN_29 4294967296) (+ (- 4294967296) (mod v_sum_~ret~0_BEFORE_RETURN_29 4294967296))))) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 09:28:16,949 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:28:16,949 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:28:16,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-12-14 09:28:16,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018280769] [2022-12-14 09:28:16,949 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:28:16,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 09:28:16,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:28:16,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 09:28:16,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=366, Unknown=0, NotChecked=0, Total=462 [2022-12-14 09:28:16,951 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 09:28:16,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:28:16,971 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2022-12-14 09:28:16,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 09:28:16,971 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 62 [2022-12-14 09:28:16,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:28:16,972 INFO L225 Difference]: With dead ends: 59 [2022-12-14 09:28:16,972 INFO L226 Difference]: Without dead ends: 41 [2022-12-14 09:28:16,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=96, Invalid=366, Unknown=0, NotChecked=0, Total=462 [2022-12-14 09:28:16,974 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:28:16,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:28:16,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-12-14 09:28:16,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-12-14 09:28:16,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 36 states have (on average 1.0833333333333333) internal successors, (39), 36 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 09:28:16,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2022-12-14 09:28:16,977 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 62 [2022-12-14 09:28:16,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:28:16,978 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2022-12-14 09:28:16,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 09:28:16,978 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2022-12-14 09:28:16,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-12-14 09:28:16,978 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:28:16,978 INFO L195 NwaCegarLoop]: trace histogram [30, 10, 6, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:28:16,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 09:28:17,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-14 09:28:17,181 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:28:17,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:28:17,182 INFO L85 PathProgramCache]: Analyzing trace with hash -2015818181, now seen corresponding path program 6 times [2022-12-14 09:28:17,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:28:17,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317800124] [2022-12-14 09:28:17,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:28:17,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:28:17,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:28:17,360 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2022-12-14 09:28:17,360 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:28:17,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317800124] [2022-12-14 09:28:17,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317800124] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:28:17,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035359731] [2022-12-14 09:28:17,360 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 09:28:17,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:28:17,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:28:17,361 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:28:17,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 09:28:17,481 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 09:28:17,481 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 09:28:17,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 09:28:17,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:28:17,499 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 246 proven. 21 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2022-12-14 09:28:17,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:28:17,548 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2022-12-14 09:28:17,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035359731] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:28:17,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1623774290] [2022-12-14 09:28:17,549 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-12-14 09:28:17,550 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:28:17,550 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:28:17,550 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:28:17,550 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:28:17,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:17,571 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:28:17,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 09:28:17,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:17,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 09:28:17,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:17,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-12-14 09:28:17,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:17,614 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:28:17,634 INFO L321 Elim1Store]: treesize reduction 54, result has 28.0 percent of original size [2022-12-14 09:28:17,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 186 treesize of output 185 [2022-12-14 09:28:17,682 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 16 treesize of output 12 [2022-12-14 09:28:17,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:17,722 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 0 case distinctions, treesize of input 30 treesize of output 20 [2022-12-14 09:28:17,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:17,778 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:28:17,778 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 0 case distinctions, treesize of input 32 treesize of output 27 [2022-12-14 09:28:17,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:17,811 INFO L321 Elim1Store]: treesize reduction 45, result has 6.3 percent of original size [2022-12-14 09:28:17,811 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 3 case distinctions, treesize of input 80 treesize of output 72 [2022-12-14 09:28:17,830 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2022-12-14 09:28:17,839 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 13 treesize of output 9 [2022-12-14 09:28:17,910 INFO L197 IcfgInterpreter]: Interpreting procedure sum with input of size 12 for LOIs [2022-12-14 09:28:17,926 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:28:18,619 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2789#(and (<= 9 |ULTIMATE.start_main_~i~2#1|) (<= |ULTIMATE.start_main_~ret2~0#1| 2147483647) (or (not (= |ULTIMATE.start_main_~ret2~0#1| |ULTIMATE.start_main_~ret~1#1|)) (not (= |ULTIMATE.start_main_~ret5~0#1| |ULTIMATE.start_main_~ret~1#1|))) (<= 0 (+ |ULTIMATE.start_main_~ret~1#1| 2147483648)) (<= |ULTIMATE.start_main_~ret~1#1| 2147483647) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (exists ((v_sum_~ret~0_BEFORE_RETURN_35 Int)) (= |ULTIMATE.start_main_~ret5~0#1| (ite (<= (mod v_sum_~ret~0_BEFORE_RETURN_35 4294967296) 2147483647) (mod v_sum_~ret~0_BEFORE_RETURN_35 4294967296) (+ (mod v_sum_~ret~0_BEFORE_RETURN_35 4294967296) (- 4294967296))))) (<= 0 (+ |ULTIMATE.start_main_~ret2~0#1| 2147483648)) (<= 10 |ULTIMATE.start_main_~i~1#1|) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~temp~0#1| (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ 36 |ULTIMATE.start_main_~#x~0#1.offset|))) (<= 0 |ULTIMATE.start_main_~#x~0#1.base|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 09:28:18,620 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:28:18,620 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:28:18,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 12 [2022-12-14 09:28:18,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226246562] [2022-12-14 09:28:18,620 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:28:18,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 09:28:18,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:28:18,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 09:28:18,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=474, Unknown=0, NotChecked=0, Total=600 [2022-12-14 09:28:18,621 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 09:28:18,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:28:18,643 INFO L93 Difference]: Finished difference Result 62 states and 69 transitions. [2022-12-14 09:28:18,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 09:28:18,643 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 66 [2022-12-14 09:28:18,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:28:18,644 INFO L225 Difference]: With dead ends: 62 [2022-12-14 09:28:18,644 INFO L226 Difference]: Without dead ends: 44 [2022-12-14 09:28:18,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 177 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=126, Invalid=474, Unknown=0, NotChecked=0, Total=600 [2022-12-14 09:28:18,644 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:28:18,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:28:18,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-12-14 09:28:18,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-12-14 09:28:18,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 39 states have (on average 1.0769230769230769) internal successors, (42), 39 states have internal predecessors, (42), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 09:28:18,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2022-12-14 09:28:18,649 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 66 [2022-12-14 09:28:18,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:28:18,650 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2022-12-14 09:28:18,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 09:28:18,650 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2022-12-14 09:28:18,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-14 09:28:18,651 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:28:18,651 INFO L195 NwaCegarLoop]: trace histogram [30, 10, 9, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:28:18,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-12-14 09:28:18,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:28:18,853 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:28:18,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:28:18,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1929773744, now seen corresponding path program 7 times [2022-12-14 09:28:18,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:28:18,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485728537] [2022-12-14 09:28:18,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:28:18,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:28:19,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:28:37,078 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 1 proven. 626 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-14 09:28:37,079 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:28:37,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485728537] [2022-12-14 09:28:37,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485728537] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:28:37,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337646932] [2022-12-14 09:28:37,079 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-14 09:28:37,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:28:37,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:28:37,080 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:28:37,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38839c95-6254-49fa-b368-a2db4c3fbc2e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-14 09:28:37,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:28:37,742 WARN L261 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 267 conjunts are in the unsatisfiable core [2022-12-14 09:28:37,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:28:37,834 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 09:28:39,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:39,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:39,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:39,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:39,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:39,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:39,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:39,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:39,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:39,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:39,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:39,842 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:28:39,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:39,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:39,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:39,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:39,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:39,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:39,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:39,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:39,848 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:28:39,851 INFO L321 Elim1Store]: treesize reduction 6, result has 14.3 percent of original size [2022-12-14 09:28:39,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 45 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 500 treesize of output 212 [2022-12-14 09:28:44,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:44,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:44,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:44,757 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:28:44,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:44,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:44,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:44,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:44,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:44,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:44,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:44,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:44,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:44,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:44,767 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:28:44,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:44,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:44,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:44,773 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:28:44,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:44,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:44,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:44,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:44,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:44,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:44,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:44,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:44,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:28:44,781 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:28:56,535 WARN L233 SmtUtils]: Spent 11.75s on a formula simplification. DAG size of input: 1132 DAG size of output: 221 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 09:28:56,536 INFO L321 Elim1Store]: treesize reduction 3641, result has 13.6 percent of original size [2022-12-14 09:28:56,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 33 select indices, 33 select index equivalence classes, 45 disjoint index pairs (out of 528 index pairs), introduced 33 new quantified variables, introduced 548 case distinctions, treesize of input 668 treesize of output 857 [2022-12-14 09:32:35,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,060 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:35,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,065 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:35,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,068 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:35,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,071 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:35,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,075 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:35,076 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:35,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,078 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:35,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,080 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:35,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,085 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-12-14 09:32:35,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 18 select indices, 18 select index equivalence classes, 45 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 153 case distinctions, treesize of input 564 treesize of output 305 [2022-12-14 09:32:35,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,582 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:35,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,586 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:35,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,589 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:35,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,592 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:35,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,594 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:35,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,597 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:35,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,598 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:35,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,600 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:35,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:35,619 INFO L321 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2022-12-14 09:32:35,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 18 select indices, 18 select index equivalence classes, 45 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 153 case distinctions, treesize of input 548 treesize of output 308 [2022-12-14 09:32:38,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,247 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:38,247 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:38,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,253 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:38,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,257 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:38,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,279 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:38,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,281 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:38,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,282 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:38,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,284 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:38,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,285 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:38,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:38,303 INFO L321 Elim1Store]: treesize reduction 25, result has 10.7 percent of original size [2022-12-14 09:32:38,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 18 select indices, 18 select index equivalence classes, 45 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 153 case distinctions, treesize of input 569 treesize of output 324 [2022-12-14 09:32:39,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,073 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:39,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,075 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:39,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,082 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:39,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,084 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:39,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,087 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:39,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,091 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:39,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,094 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:39,094 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:39,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,117 INFO L321 Elim1Store]: treesize reduction 24, result has 22.6 percent of original size [2022-12-14 09:32:39,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 18 select indices, 18 select index equivalence classes, 45 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 153 case distinctions, treesize of input 588 treesize of output 320 [2022-12-14 09:32:39,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,660 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:39,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,664 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:39,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,666 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:39,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,669 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:39,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,672 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:39,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:39,686 INFO L321 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-12-14 09:32:39,686 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 45 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 105 case distinctions, treesize of input 596 treesize of output 287 [2022-12-14 09:32:40,313 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:40,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,317 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:40,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,320 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:40,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,322 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:40,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,323 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:40,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,326 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:40,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,340 INFO L321 Elim1Store]: treesize reduction 16, result has 15.8 percent of original size [2022-12-14 09:32:40,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 45 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 105 case distinctions, treesize of input 617 treesize of output 303 [2022-12-14 09:32:40,927 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:40,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,929 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:40,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,932 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:40,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:40,945 INFO L321 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2022-12-14 09:32:40,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 45 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 628 treesize of output 273 [2022-12-14 09:32:41,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:41,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:41,520 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:41,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:41,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:41,521 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:41,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:41,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:41,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:41,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:41,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:41,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:41,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:41,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:41,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:41,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:41,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:41,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:41,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:41,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:41,537 INFO L321 Elim1Store]: treesize reduction 4, result has 42.9 percent of original size [2022-12-14 09:32:41,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 45 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 632 treesize of output 264 [2022-12-14 09:32:42,114 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:32:42,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:42,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:42,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:42,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:42,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:42,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:42,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:42,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:42,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:42,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:42,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:42,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:42,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:42,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:42,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:42,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:32:42,127 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:32:42,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 45 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 628 treesize of output 257 [2022-12-14 09:33:04,968 WARN L233 SmtUtils]: Spent 21.47s on a formula simplification. DAG size of input: 775 DAG size of output: 433 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 09:33:04,970 INFO L321 Elim1Store]: treesize reduction 1484, result has 46.3 percent of original size [2022-12-14 09:33:04,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 30 select indices, 30 select index equivalence classes, 45 disjoint index pairs (out of 435 index pairs), introduced 30 new quantified variables, introduced 435 case distinctions, treesize of input 758 treesize of output 1482 [2022-12-14 09:41:42,684 WARN L233 SmtUtils]: Spent 5.42s on a formula simplification. DAG size of input: 3 DAG size of output: 1 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)