./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/reducercommutativity/sum20-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/reducercommutativity/sum20-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW --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 7c2f5d73c406c3ffc9c27d7cd89dbe0ce5d7ec9b20c32fdf36fe2abec0cffd86 --- 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-4e7fbc6 [2022-11-23 15:23:45,990 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:23:45,993 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:23:46,017 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:23:46,018 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:23:46,019 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:23:46,021 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:23:46,023 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:23:46,024 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:23:46,026 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:23:46,027 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:23:46,028 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:23:46,029 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:23:46,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:23:46,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:23:46,033 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:23:46,034 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:23:46,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:23:46,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:23:46,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:23:46,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:23:46,042 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:23:46,044 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:23:46,045 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:23:46,049 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:23:46,050 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:23:46,050 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:23:46,051 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:23:46,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:23:46,053 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:23:46,053 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:23:46,054 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:23:46,055 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:23:46,056 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:23:46,058 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:23:46,058 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:23:46,059 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:23:46,060 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:23:46,060 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:23:46,061 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:23:46,062 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:23:46,064 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 15:23:46,092 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:23:46,092 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:23:46,093 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:23:46,093 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:23:46,094 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:23:46,094 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:23:46,094 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:23:46,095 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:23:46,095 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:23:46,095 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:23:46,096 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:23:46,096 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:23:46,096 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:23:46,096 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:23:46,097 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:23:46,097 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:23:46,097 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:23:46,097 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:23:46,098 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:23:46,099 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:23:46,099 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:23:46,099 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:23:46,099 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:23:46,100 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:23:46,100 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:23:46,100 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:23:46,100 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:23:46,101 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:23:46,101 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:23:46,101 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:23:46,101 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:23:46,102 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:23:46,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:23:46,102 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:23:46,103 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:23:46,103 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:23:46,103 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:23:46,103 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:23:46,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:23:46,104 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:23:46,104 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:23:46,104 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_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c2f5d73c406c3ffc9c27d7cd89dbe0ce5d7ec9b20c32fdf36fe2abec0cffd86 [2022-11-23 15:23:46,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:23:46,460 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:23:46,463 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:23:46,464 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:23:46,465 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:23:46,466 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/reducercommutativity/sum20-2.i [2022-11-23 15:23:50,209 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:23:50,434 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:23:50,435 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/sv-benchmarks/c/reducercommutativity/sum20-2.i [2022-11-23 15:23:50,443 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/data/7002d9e10/797f7157c36747d19e63a12714d96e9b/FLAGba50fe035 [2022-11-23 15:23:50,464 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/data/7002d9e10/797f7157c36747d19e63a12714d96e9b [2022-11-23 15:23:50,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:23:50,469 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:23:50,472 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:23:50,472 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:23:50,477 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:23:50,478 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:23:50" (1/1) ... [2022-11-23 15:23:50,479 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ce75f20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:50, skipping insertion in model container [2022-11-23 15:23:50,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:23:50" (1/1) ... [2022-11-23 15:23:50,489 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:23:50,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:23:50,711 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_d91d912d-415d-4f49-8756-7517c3bedad4/sv-benchmarks/c/reducercommutativity/sum20-2.i[1277,1290] [2022-11-23 15:23:50,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:23:50,726 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:23:50,749 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_d91d912d-415d-4f49-8756-7517c3bedad4/sv-benchmarks/c/reducercommutativity/sum20-2.i[1277,1290] [2022-11-23 15:23:50,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:23:50,768 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:23:50,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:50 WrapperNode [2022-11-23 15:23:50,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:23:50,771 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:23:50,772 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:23:50,772 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:23:50,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:50" (1/1) ... [2022-11-23 15:23:50,791 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:50" (1/1) ... [2022-11-23 15:23:50,812 INFO L138 Inliner]: procedures = 16, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 67 [2022-11-23 15:23:50,812 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:23:50,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:23:50,814 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:23:50,814 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:23:50,825 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:50" (1/1) ... [2022-11-23 15:23:50,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:50" (1/1) ... [2022-11-23 15:23:50,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:50" (1/1) ... [2022-11-23 15:23:50,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:50" (1/1) ... [2022-11-23 15:23:50,836 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:50" (1/1) ... [2022-11-23 15:23:50,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:50" (1/1) ... [2022-11-23 15:23:50,842 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:50" (1/1) ... [2022-11-23 15:23:50,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:50" (1/1) ... [2022-11-23 15:23:50,845 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:23:50,847 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:23:50,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:23:50,847 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:23:50,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:50" (1/1) ... [2022-11-23 15:23:50,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:23:50,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:23:50,889 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:23:50,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:23:50,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:23:50,941 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2022-11-23 15:23:50,941 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2022-11-23 15:23:50,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:23:50,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:23:50,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:23:50,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:23:50,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:23:50,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:23:50,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:23:51,034 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:23:51,036 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:23:51,305 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:23:51,422 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:23:51,422 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-23 15:23:51,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:23:51 BoogieIcfgContainer [2022-11-23 15:23:51,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:23:51,435 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:23:51,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:23:51,440 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:23:51,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:23:50" (1/3) ... [2022-11-23 15:23:51,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7127d173 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:23:51, skipping insertion in model container [2022-11-23 15:23:51,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:23:50" (2/3) ... [2022-11-23 15:23:51,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7127d173 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:23:51, skipping insertion in model container [2022-11-23 15:23:51,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:23:51" (3/3) ... [2022-11-23 15:23:51,444 INFO L112 eAbstractionObserver]: Analyzing ICFG sum20-2.i [2022-11-23 15:23:51,467 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:23:51,467 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:23:51,531 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:23:51,541 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;@4b06d0a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:23:51,541 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:23:51,547 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) [2022-11-23 15:23:51,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-23 15:23:51,557 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:23:51,558 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:23:51,559 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:23:51,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:23:51,566 INFO L85 PathProgramCache]: Analyzing trace with hash -93755173, now seen corresponding path program 1 times [2022-11-23 15:23:51,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:23:51,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922197847] [2022-11-23 15:23:51,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:51,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:23:51,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:51,997 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 15:23:51,997 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:23:51,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922197847] [2022-11-23 15:23:52,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922197847] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:23:52,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:23:52,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:23:52,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809670228] [2022-11-23 15:23:52,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:23:52,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:23:52,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:23:52,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:23:52,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:23:52,066 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) [2022-11-23 15:23:52,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:23:52,123 INFO L93 Difference]: Finished difference Result 33 states and 43 transitions. [2022-11-23 15:23:52,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:23:52,127 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 [2022-11-23 15:23:52,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:23:52,135 INFO L225 Difference]: With dead ends: 33 [2022-11-23 15:23:52,136 INFO L226 Difference]: Without dead ends: 16 [2022-11-23 15:23:52,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:23:52,144 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 [2022-11-23 15:23:52,145 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] [2022-11-23 15:23:52,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-23 15:23:52,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-23 15:23:52,188 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) [2022-11-23 15:23:52,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2022-11-23 15:23:52,192 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 20 [2022-11-23 15:23:52,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:23:52,192 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2022-11-23 15:23:52,193 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) [2022-11-23 15:23:52,193 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2022-11-23 15:23:52,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 15:23:52,197 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:23:52,197 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:23:52,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:23:52,199 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:23:52,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:23:52,200 INFO L85 PathProgramCache]: Analyzing trace with hash 3079074, now seen corresponding path program 1 times [2022-11-23 15:23:52,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:23:52,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031871304] [2022-11-23 15:23:52,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:52,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:23:52,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:52,402 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 15:23:52,402 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:23:52,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031871304] [2022-11-23 15:23:52,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031871304] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:23:52,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570063499] [2022-11-23 15:23:52,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:52,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:23:52,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:23:52,409 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:23:52,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 15:23:52,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:52,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 15:23:52,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:23:52,626 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 15:23:52,626 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:23:52,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570063499] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:23:52,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 15:23:52,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-23 15:23:52,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925330459] [2022-11-23 15:23:52,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:23:52,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:23:52,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:23:52,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:23:52,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:23:52,640 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) [2022-11-23 15:23:52,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:23:52,693 INFO L93 Difference]: Finished difference Result 29 states and 39 transitions. [2022-11-23 15:23:52,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:23:52,695 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 [2022-11-23 15:23:52,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:23:52,695 INFO L225 Difference]: With dead ends: 29 [2022-11-23 15:23:52,696 INFO L226 Difference]: Without dead ends: 17 [2022-11-23 15:23:52,696 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 [2022-11-23 15:23:52,698 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 [2022-11-23 15:23:52,699 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] [2022-11-23 15:23:52,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-23 15:23:52,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-23 15:23:52,704 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) [2022-11-23 15:23:52,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2022-11-23 15:23:52,705 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 21 [2022-11-23 15:23:52,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:23:52,705 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2022-11-23 15:23:52,706 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) [2022-11-23 15:23:52,706 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2022-11-23 15:23:52,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-23 15:23:52,710 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:23:52,710 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:23:52,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 15:23:52,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-23 15:23:52,919 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:23:52,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:23:52,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1452369158, now seen corresponding path program 1 times [2022-11-23 15:23:52,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:23:52,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987671652] [2022-11-23 15:23:52,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:52,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:23:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:53,078 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-23 15:23:53,079 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:23:53,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987671652] [2022-11-23 15:23:53,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987671652] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:23:53,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53022101] [2022-11-23 15:23:53,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:53,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:23:53,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:23:53,091 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:23:53,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 15:23:53,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:53,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 15:23:53,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:23:53,260 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-23 15:23:53,262 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:23:53,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53022101] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:23:53,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 15:23:53,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-23 15:23:53,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882190967] [2022-11-23 15:23:53,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:23:53,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:23:53,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:23:53,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:23:53,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:23:53,269 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) [2022-11-23 15:23:53,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:23:53,307 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2022-11-23 15:23:53,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:23:53,309 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 [2022-11-23 15:23:53,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:23:53,311 INFO L225 Difference]: With dead ends: 27 [2022-11-23 15:23:53,311 INFO L226 Difference]: Without dead ends: 18 [2022-11-23 15:23:53,313 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 [2022-11-23 15:23:53,316 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 [2022-11-23 15:23:53,316 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] [2022-11-23 15:23:53,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-23 15:23:53,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-23 15:23:53,322 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) [2022-11-23 15:23:53,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2022-11-23 15:23:53,323 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 24 [2022-11-23 15:23:53,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:23:53,326 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2022-11-23 15:23:53,326 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) [2022-11-23 15:23:53,326 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2022-11-23 15:23:53,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-23 15:23:53,327 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:23:53,327 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:23:53,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 15:23:53,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:23:53,537 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:23:53,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:23:53,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1362806936, now seen corresponding path program 1 times [2022-11-23 15:23:53,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:23:53,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671472519] [2022-11-23 15:23:53,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:53,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:23:53,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:53,762 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-23 15:23:53,762 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:23:53,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671472519] [2022-11-23 15:23:53,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671472519] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:23:53,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676218404] [2022-11-23 15:23:53,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:53,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:23:53,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:23:53,767 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:23:53,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 15:23:53,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:53,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:23:53,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:23:53,969 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-23 15:23:53,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:23:54,034 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-23 15:23:54,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1676218404] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:23:54,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1514485819] [2022-11-23 15:23:54,069 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-23 15:23:54,069 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:23:54,073 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:23:54,081 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:23:54,082 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:23:54,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:54,240 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:23:54,241 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 [2022-11-23 15:23:54,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:54,265 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 [2022-11-23 15:23:54,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:54,321 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 [2022-11-23 15:23:54,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:54,463 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:23:54,503 INFO L321 Elim1Store]: treesize reduction 54, result has 28.0 percent of original size [2022-11-23 15:23:54,505 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 [2022-11-23 15:23:54,658 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 [2022-11-23 15:23:54,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:54,763 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 [2022-11-23 15:23:54,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:54,978 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 [2022-11-23 15:23:55,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:55,088 INFO L321 Elim1Store]: treesize reduction 45, result has 34.8 percent of original size [2022-11-23 15:23:55,090 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 [2022-11-23 15:23:55,206 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 [2022-11-23 15:23:55,220 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 [2022-11-23 15:23:55,438 INFO L197 IcfgInterpreter]: Interpreting procedure sum with input of size 12 for LOIs [2022-11-23 15:23:55,522 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:23:58,925 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '524#(and (<= |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))))) (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)) (<= 19 |ULTIMATE.start_main_~i~2#1|) (<= 20 |ULTIMATE.start_main_~i~1#1|) (= |#NULL.offset| 0) (= (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ 76 |ULTIMATE.start_main_~#x~0#1.offset|)) |ULTIMATE.start_main_~temp~0#1|) (<= 0 |ULTIMATE.start_main_~#x~0#1.base|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-23 15:23:58,925 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:23:58,925 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:23:58,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 7 [2022-11-23 15:23:58,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327862901] [2022-11-23 15:23:58,926 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:23:58,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 15:23:58,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:23:58,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 15:23:58,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2022-11-23 15:23:58,929 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) [2022-11-23 15:23:58,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:23:58,979 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2022-11-23 15:23:58,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:23:58,980 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 [2022-11-23 15:23:58,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:23:58,982 INFO L225 Difference]: With dead ends: 36 [2022-11-23 15:23:58,982 INFO L226 Difference]: Without dead ends: 21 [2022-11-23 15:23:58,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2022-11-23 15:23:58,985 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:23:58,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:23:58,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-23 15:23:58,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-23 15:23:58,997 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) [2022-11-23 15:23:59,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2022-11-23 15:23:59,000 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 25 [2022-11-23 15:23:59,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:23:59,000 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2022-11-23 15:23:59,001 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) [2022-11-23 15:23:59,001 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2022-11-23 15:23:59,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-23 15:23:59,003 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:23:59,003 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:23:59,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 15:23:59,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:23:59,211 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:23:59,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:23:59,212 INFO L85 PathProgramCache]: Analyzing trace with hash -289862895, now seen corresponding path program 2 times [2022-11-23 15:23:59,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:23:59,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963455549] [2022-11-23 15:23:59,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:59,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:23:59,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:59,396 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-23 15:23:59,397 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:23:59,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963455549] [2022-11-23 15:23:59,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963455549] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:23:59,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774478286] [2022-11-23 15:23:59,403 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 15:23:59,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:23:59,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:23:59,405 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:23:59,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 15:23:59,508 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-23 15:23:59,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:23:59,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:23:59,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:23:59,528 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-23 15:23:59,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:23:59,564 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-23 15:23:59,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774478286] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:23:59,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2017960948] [2022-11-23 15:23:59,567 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-23 15:23:59,567 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:23:59,568 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:23:59,568 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:23:59,568 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:23:59,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:59,602 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-23 15:23:59,603 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 [2022-11-23 15:23:59,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:59,641 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:23:59,642 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 [2022-11-23 15:23:59,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:59,669 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 [2022-11-23 15:23:59,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:59,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:59,776 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-11-23 15:23:59,777 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 [2022-11-23 15:23:59,828 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 [2022-11-23 15:23:59,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:23:59,900 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 [2022-11-23 15:24:00,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:00,026 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:00,028 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 [2022-11-23 15:24:00,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:00,081 INFO L321 Elim1Store]: treesize reduction 45, result has 6.3 percent of original size [2022-11-23 15:24:00,082 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 [2022-11-23 15:24:00,128 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 [2022-11-23 15:24:00,146 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 [2022-11-23 15:24:00,293 INFO L197 IcfgInterpreter]: Interpreting procedure sum with input of size 12 for LOIs [2022-11-23 15:24:00,359 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:24:03,638 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '797#(and (<= |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)) (exists ((v_sum_~ret~0_BEFORE_RETURN_12 Int)) (= |ULTIMATE.start_main_~ret5~0#1| (ite (<= (mod v_sum_~ret~0_BEFORE_RETURN_12 4294967296) 2147483647) (mod v_sum_~ret~0_BEFORE_RETURN_12 4294967296) (+ (mod v_sum_~ret~0_BEFORE_RETURN_12 4294967296) (- 4294967296))))) (<= 19 |ULTIMATE.start_main_~i~2#1|) (<= 20 |ULTIMATE.start_main_~i~1#1|) (= |#NULL.offset| 0) (= (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ 76 |ULTIMATE.start_main_~#x~0#1.offset|)) |ULTIMATE.start_main_~temp~0#1|) (<= 0 |ULTIMATE.start_main_~#x~0#1.base|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-23 15:24:03,638 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:24:03,638 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:24:03,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-23 15:24:03,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241652019] [2022-11-23 15:24:03,639 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:24:03,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 15:24:03,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:24:03,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 15:24:03,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2022-11-23 15:24:03,641 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) [2022-11-23 15:24:03,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:24:03,688 INFO L93 Difference]: Finished difference Result 38 states and 50 transitions. [2022-11-23 15:24:03,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:24:03,689 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 [2022-11-23 15:24:03,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:24:03,690 INFO L225 Difference]: With dead ends: 38 [2022-11-23 15:24:03,690 INFO L226 Difference]: Without dead ends: 24 [2022-11-23 15:24:03,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2022-11-23 15:24:03,692 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:24:03,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:24:03,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-23 15:24:03,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-23 15:24:03,696 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) [2022-11-23 15:24:03,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2022-11-23 15:24:03,698 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 28 [2022-11-23 15:24:03,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:24:03,698 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2022-11-23 15:24:03,699 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) [2022-11-23 15:24:03,699 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2022-11-23 15:24:03,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-23 15:24:03,700 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:24:03,700 INFO L195 NwaCegarLoop]: trace histogram [12, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:24:03,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 15:24:03,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:24:03,904 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:24:03,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:24:03,904 INFO L85 PathProgramCache]: Analyzing trace with hash 635166223, now seen corresponding path program 3 times [2022-11-23 15:24:03,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:24:03,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373559014] [2022-11-23 15:24:03,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:24:03,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:24:03,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:24:04,062 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-11-23 15:24:04,063 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:24:04,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373559014] [2022-11-23 15:24:04,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373559014] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:24:04,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228124272] [2022-11-23 15:24:04,064 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 15:24:04,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:24:04,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:24:04,065 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:24:04,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 15:24:04,183 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 15:24:04,183 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:24:04,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 15:24:04,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:24:04,263 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-23 15:24:04,263 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:24:04,367 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-23 15:24:04,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228124272] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:24:04,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1074372072] [2022-11-23 15:24:04,371 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-23 15:24:04,371 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:24:04,372 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:24:04,372 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:24:04,372 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:24:04,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,409 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:24:04,410 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 [2022-11-23 15:24:04,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,428 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 [2022-11-23 15:24:04,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,467 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 [2022-11-23 15:24:04,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,526 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:04,558 INFO L321 Elim1Store]: treesize reduction 54, result has 28.0 percent of original size [2022-11-23 15:24:04,559 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 [2022-11-23 15:24:04,652 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 [2022-11-23 15:24:04,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,723 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 [2022-11-23 15:24:04,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,841 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:04,842 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 [2022-11-23 15:24:04,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:04,897 INFO L321 Elim1Store]: treesize reduction 45, result has 6.3 percent of original size [2022-11-23 15:24:04,897 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 [2022-11-23 15:24:04,932 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 [2022-11-23 15:24:04,955 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 [2022-11-23 15:24:05,134 INFO L197 IcfgInterpreter]: Interpreting procedure sum with input of size 12 for LOIs [2022-11-23 15:24:05,177 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:24:10,637 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1141#(and (<= |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)) (<= 19 |ULTIMATE.start_main_~i~2#1|) (<= 20 |ULTIMATE.start_main_~i~1#1|) (= (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ 76 |ULTIMATE.start_main_~#x~0#1.offset|)) |ULTIMATE.start_main_~temp~0#1|) (<= 0 |ULTIMATE.start_main_~#x~0#1.base|) (<= 0 |#NULL.offset|) (exists ((v_sum_~ret~0_BEFORE_RETURN_18 Int)) (= |ULTIMATE.start_main_~ret5~0#1| (ite (<= (mod v_sum_~ret~0_BEFORE_RETURN_18 4294967296) 2147483647) (mod v_sum_~ret~0_BEFORE_RETURN_18 4294967296) (+ (- 4294967296) (mod v_sum_~ret~0_BEFORE_RETURN_18 4294967296))))) (<= |ULTIMATE.start_main_~#x~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-23 15:24:10,638 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:24:10,638 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:24:10,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 7] total 14 [2022-11-23 15:24:10,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275981307] [2022-11-23 15:24:10,638 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:24:10,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 15:24:10,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:24:10,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 15:24:10,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=571, Unknown=0, NotChecked=0, Total=702 [2022-11-23 15:24:10,640 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 15:24:10,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:24:10,705 INFO L93 Difference]: Finished difference Result 49 states and 63 transitions. [2022-11-23 15:24:10,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 15:24:10,706 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 37 [2022-11-23 15:24:10,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:24:10,706 INFO L225 Difference]: With dead ends: 49 [2022-11-23 15:24:10,707 INFO L226 Difference]: Without dead ends: 31 [2022-11-23 15:24:10,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=131, Invalid=571, Unknown=0, NotChecked=0, Total=702 [2022-11-23 15:24:10,708 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:24:10,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:24:10,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-23 15:24:10,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-11-23 15:24:10,714 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) [2022-11-23 15:24:10,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2022-11-23 15:24:10,715 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 37 [2022-11-23 15:24:10,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:24:10,715 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2022-11-23 15:24:10,715 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 15:24:10,716 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2022-11-23 15:24:10,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-23 15:24:10,717 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:24:10,717 INFO L195 NwaCegarLoop]: trace histogram [12, 10, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:24:10,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-23 15:24:10,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:24:10,925 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:24:10,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:24:10,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1872322245, now seen corresponding path program 4 times [2022-11-23 15:24:10,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:24:10,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89750818] [2022-11-23 15:24:10,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:24:10,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:24:10,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:24:11,335 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-23 15:24:11,336 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:24:11,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89750818] [2022-11-23 15:24:11,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89750818] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:24:11,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1616819474] [2022-11-23 15:24:11,337 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-23 15:24:11,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:24:11,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:24:11,338 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:24:11,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-23 15:24:11,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:24:11,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-23 15:24:11,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:24:11,543 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-23 15:24:11,544 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:24:11,825 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-23 15:24:11,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1616819474] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:24:11,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1744956832] [2022-11-23 15:24:11,828 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-23 15:24:11,828 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:24:11,829 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:24:11,829 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:24:11,829 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:24:11,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:11,873 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-23 15:24:11,874 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 [2022-11-23 15:24:11,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:11,907 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:24:11,912 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 [2022-11-23 15:24:11,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:11,937 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 [2022-11-23 15:24:11,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:11,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:12,008 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-11-23 15:24:12,009 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 [2022-11-23 15:24:12,059 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 [2022-11-23 15:24:12,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:12,130 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 [2022-11-23 15:24:12,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:12,245 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:12,248 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 [2022-11-23 15:24:12,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:12,309 INFO L321 Elim1Store]: treesize reduction 45, result has 6.3 percent of original size [2022-11-23 15:24:12,310 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 [2022-11-23 15:24:12,378 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 [2022-11-23 15:24:12,402 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 [2022-11-23 15:24:12,603 INFO L197 IcfgInterpreter]: Interpreting procedure sum with input of size 12 for LOIs [2022-11-23 15:24:12,655 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:24:20,073 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1572#(and (<= |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)) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~ret~1#1| 2147483647) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (<= 0 (+ |ULTIMATE.start_main_~ret2~0#1| 2147483648)) (exists ((v_sum_~ret~0_BEFORE_RETURN_23 Int)) (= |ULTIMATE.start_main_~ret5~0#1| (ite (<= (mod v_sum_~ret~0_BEFORE_RETURN_23 4294967296) 2147483647) (mod v_sum_~ret~0_BEFORE_RETURN_23 4294967296) (+ (- 4294967296) (mod v_sum_~ret~0_BEFORE_RETURN_23 4294967296))))) (<= 19 |ULTIMATE.start_main_~i~2#1|) (<= 20 |ULTIMATE.start_main_~i~1#1|) (= (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ 76 |ULTIMATE.start_main_~#x~0#1.offset|)) |ULTIMATE.start_main_~temp~0#1|) (<= 0 |ULTIMATE.start_main_~#x~0#1.base|) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-23 15:24:20,073 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:24:20,073 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:24:20,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 13] total 23 [2022-11-23 15:24:20,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648659966] [2022-11-23 15:24:20,074 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:24:20,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-23 15:24:20,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:24:20,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-23 15:24:20,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=313, Invalid=947, Unknown=0, NotChecked=0, Total=1260 [2022-11-23 15:24:20,076 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 23 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 23 states have internal predecessors, (38), 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) [2022-11-23 15:24:20,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:24:20,150 INFO L93 Difference]: Finished difference Result 60 states and 77 transitions. [2022-11-23 15:24:20,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-23 15:24:20,151 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 23 states have internal predecessors, (38), 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 44 [2022-11-23 15:24:20,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:24:20,152 INFO L225 Difference]: With dead ends: 60 [2022-11-23 15:24:20,152 INFO L226 Difference]: Without dead ends: 41 [2022-11-23 15:24:20,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 107 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=313, Invalid=947, Unknown=0, NotChecked=0, Total=1260 [2022-11-23 15:24:20,154 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:24:20,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:24:20,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-23 15:24:20,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-11-23 15:24:20,160 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) [2022-11-23 15:24:20,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2022-11-23 15:24:20,161 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 44 [2022-11-23 15:24:20,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:24:20,161 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2022-11-23 15:24:20,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 23 states have internal predecessors, (38), 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) [2022-11-23 15:24:20,162 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2022-11-23 15:24:20,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-23 15:24:20,163 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:24:20,163 INFO L195 NwaCegarLoop]: trace histogram [20, 12, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:24:20,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-23 15:24:20,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-23 15:24:20,369 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:24:20,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:24:20,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1398010469, now seen corresponding path program 5 times [2022-11-23 15:24:20,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:24:20,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902942440] [2022-11-23 15:24:20,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:24:20,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:24:20,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:24:20,636 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2022-11-23 15:24:20,636 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:24:20,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902942440] [2022-11-23 15:24:20,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902942440] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:24:20,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649914664] [2022-11-23 15:24:20,637 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 15:24:20,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:24:20,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:24:20,639 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:24:20,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-23 15:24:20,757 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-23 15:24:20,757 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:24:20,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 15:24:20,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:24:20,794 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 54 proven. 3 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2022-11-23 15:24:20,795 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:24:20,865 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2022-11-23 15:24:20,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649914664] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:24:20,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [956790306] [2022-11-23 15:24:20,870 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-23 15:24:20,871 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:24:20,871 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:24:20,872 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:24:20,872 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:24:20,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:20,905 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:24:20,905 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 [2022-11-23 15:24:20,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:20,915 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 [2022-11-23 15:24:20,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:20,932 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 [2022-11-23 15:24:20,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:20,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:20,986 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-11-23 15:24:20,986 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 [2022-11-23 15:24:21,018 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 [2022-11-23 15:24:21,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:21,064 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 [2022-11-23 15:24:21,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:21,144 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 [2022-11-23 15:24:21,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:21,196 INFO L321 Elim1Store]: treesize reduction 45, result has 34.8 percent of original size [2022-11-23 15:24:21,196 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 [2022-11-23 15:24:21,231 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 [2022-11-23 15:24:21,243 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 [2022-11-23 15:24:21,380 INFO L197 IcfgInterpreter]: Interpreting procedure sum with input of size 12 for LOIs [2022-11-23 15:24:21,407 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:24:26,498 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2095#(and (<= 0 |#NULL.base|) (<= |ULTIMATE.start_main_~ret2~0#1| 2147483647) (exists ((v_sum_~ret~0_BEFORE_RETURN_30 Int)) (= |ULTIMATE.start_main_~ret5~0#1| (ite (<= (mod v_sum_~ret~0_BEFORE_RETURN_30 4294967296) 2147483647) (mod v_sum_~ret~0_BEFORE_RETURN_30 4294967296) (+ (mod v_sum_~ret~0_BEFORE_RETURN_30 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) (<= 19 |ULTIMATE.start_main_~i~2#1|) (<= 20 |ULTIMATE.start_main_~i~1#1|) (= (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ 76 |ULTIMATE.start_main_~#x~0#1.offset|)) |ULTIMATE.start_main_~temp~0#1|) (<= 0 |ULTIMATE.start_main_~#x~0#1.base|) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~#x~0#1.offset| 0) (<= 0 |#StackHeapBarrier|))' at error location [2022-11-23 15:24:26,499 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:24:26,499 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:24:26,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 13 [2022-11-23 15:24:26,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624999733] [2022-11-23 15:24:26,500 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:24:26,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 15:24:26,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:24:26,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 15:24:26,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=542, Unknown=0, NotChecked=0, Total=650 [2022-11-23 15:24:26,502 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-23 15:24:26,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:24:26,573 INFO L93 Difference]: Finished difference Result 64 states and 78 transitions. [2022-11-23 15:24:26,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 15:24:26,574 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 2 states have call successors, (5), 2 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 54 [2022-11-23 15:24:26,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:24:26,575 INFO L225 Difference]: With dead ends: 64 [2022-11-23 15:24:26,575 INFO L226 Difference]: Without dead ends: 46 [2022-11-23 15:24:26,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=108, Invalid=542, Unknown=0, NotChecked=0, Total=650 [2022-11-23 15:24:26,576 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:24:26,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:24:26,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-23 15:24:26,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-23 15:24:26,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 41 states have (on average 1.0731707317073171) internal successors, (44), 41 states have internal predecessors, (44), 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) [2022-11-23 15:24:26,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2022-11-23 15:24:26,584 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 54 [2022-11-23 15:24:26,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:24:26,585 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2022-11-23 15:24:26,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-23 15:24:26,585 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2022-11-23 15:24:26,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-23 15:24:26,587 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:24:26,587 INFO L195 NwaCegarLoop]: trace histogram [20, 15, 6, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:24:26,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-23 15:24:26,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-23 15:24:26,794 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:24:26,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:24:26,795 INFO L85 PathProgramCache]: Analyzing trace with hash -925565843, now seen corresponding path program 6 times [2022-11-23 15:24:26,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:24:26,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983752066] [2022-11-23 15:24:26,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:24:26,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:24:26,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:24:27,092 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 89 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-11-23 15:24:27,093 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:24:27,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983752066] [2022-11-23 15:24:27,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983752066] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:24:27,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526283777] [2022-11-23 15:24:27,094 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 15:24:27,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:24:27,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:24:27,095 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:24:27,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-23 15:24:27,262 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 15:24:27,262 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:24:27,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 15:24:27,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:24:27,294 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 74 proven. 15 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-11-23 15:24:27,295 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:24:27,403 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 89 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-11-23 15:24:27,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526283777] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:24:27,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [327310616] [2022-11-23 15:24:27,405 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-23 15:24:27,405 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:24:27,406 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:24:27,406 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:24:27,406 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:24:27,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:27,437 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:24:27,437 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 [2022-11-23 15:24:27,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:27,448 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 [2022-11-23 15:24:27,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:27,467 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 [2022-11-23 15:24:27,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:27,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:27,525 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-11-23 15:24:27,525 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 [2022-11-23 15:24:27,562 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 [2022-11-23 15:24:27,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:27,621 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 [2022-11-23 15:24:27,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:27,705 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:27,706 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 [2022-11-23 15:24:27,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:27,753 INFO L321 Elim1Store]: treesize reduction 45, result has 6.3 percent of original size [2022-11-23 15:24:27,753 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 [2022-11-23 15:24:27,785 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 [2022-11-23 15:24:27,799 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 [2022-11-23 15:24:27,936 INFO L197 IcfgInterpreter]: Interpreting procedure sum with input of size 12 for LOIs [2022-11-23 15:24:27,962 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:24:31,885 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2680#(and (<= |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)) (<= 19 |ULTIMATE.start_main_~i~2#1|) (<= 20 |ULTIMATE.start_main_~i~1#1|) (<= |ULTIMATE.start_main_~ret5~0#1| 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ 76 |ULTIMATE.start_main_~#x~0#1.offset|)) |ULTIMATE.start_main_~temp~0#1|) (<= 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 [2022-11-23 15:24:31,885 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:24:31,885 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:24:31,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2022-11-23 15:24:31,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175765962] [2022-11-23 15:24:31,886 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:24:31,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-23 15:24:31,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:24:31,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-23 15:24:31,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=591, Unknown=1, NotChecked=0, Total=756 [2022-11-23 15:24:31,888 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 15:24:31,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:24:31,950 INFO L93 Difference]: Finished difference Result 76 states and 92 transitions. [2022-11-23 15:24:31,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 15:24:31,951 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 61 [2022-11-23 15:24:31,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:24:31,952 INFO L225 Difference]: With dead ends: 76 [2022-11-23 15:24:31,952 INFO L226 Difference]: Without dead ends: 53 [2022-11-23 15:24:31,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=164, Invalid=591, Unknown=1, NotChecked=0, Total=756 [2022-11-23 15:24:31,954 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:24:31,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:24:31,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-23 15:24:31,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-11-23 15:24:31,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 48 states have (on average 1.0625) internal successors, (51), 48 states have internal predecessors, (51), 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) [2022-11-23 15:24:31,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2022-11-23 15:24:31,962 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 61 [2022-11-23 15:24:31,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:24:31,963 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2022-11-23 15:24:31,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 15:24:31,963 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2022-11-23 15:24:31,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-23 15:24:31,964 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:24:31,965 INFO L195 NwaCegarLoop]: trace histogram [36, 20, 6, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:24:31,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-23 15:24:32,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:24:32,177 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:24:32,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:24:32,177 INFO L85 PathProgramCache]: Analyzing trace with hash -739838565, now seen corresponding path program 7 times [2022-11-23 15:24:32,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:24:32,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235182654] [2022-11-23 15:24:32,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:24:32,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:24:32,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:24:32,710 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 0 proven. 418 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2022-11-23 15:24:32,710 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:24:32,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235182654] [2022-11-23 15:24:32,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235182654] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:24:32,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330366963] [2022-11-23 15:24:32,710 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-23 15:24:32,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:24:32,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:24:32,712 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:24:32,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-23 15:24:32,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:24:32,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-23 15:24:32,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:24:32,946 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 340 proven. 78 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2022-11-23 15:24:32,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:24:33,228 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 0 proven. 418 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2022-11-23 15:24:33,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330366963] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:24:33,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1207809762] [2022-11-23 15:24:33,230 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-23 15:24:33,230 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:24:33,231 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:24:33,231 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:24:33,231 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:24:33,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:33,262 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:24:33,262 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 [2022-11-23 15:24:33,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:33,273 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 [2022-11-23 15:24:33,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:33,292 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 [2022-11-23 15:24:33,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:33,336 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:33,364 INFO L321 Elim1Store]: treesize reduction 54, result has 28.0 percent of original size [2022-11-23 15:24:33,365 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 [2022-11-23 15:24:33,428 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 [2022-11-23 15:24:33,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:33,502 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 [2022-11-23 15:24:33,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:33,589 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 [2022-11-23 15:24:33,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:33,645 INFO L321 Elim1Store]: treesize reduction 45, result has 34.8 percent of original size [2022-11-23 15:24:33,646 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 [2022-11-23 15:24:33,697 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 [2022-11-23 15:24:33,708 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 [2022-11-23 15:24:33,818 INFO L197 IcfgInterpreter]: Interpreting procedure sum with input of size 12 for LOIs [2022-11-23 15:24:33,845 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:24:34,948 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3437#(and (<= |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)) (exists ((v_sum_~ret~0_BEFORE_RETURN_42 Int)) (= |ULTIMATE.start_main_~ret5~0#1| (ite (<= (mod v_sum_~ret~0_BEFORE_RETURN_42 4294967296) 2147483647) (mod v_sum_~ret~0_BEFORE_RETURN_42 4294967296) (+ (mod v_sum_~ret~0_BEFORE_RETURN_42 4294967296) (- 4294967296))))) (<= |ULTIMATE.start_main_~ret~1#1| 2147483647) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (<= 0 (+ |ULTIMATE.start_main_~ret2~0#1| 2147483648)) (<= 19 |ULTIMATE.start_main_~i~2#1|) (<= 20 |ULTIMATE.start_main_~i~1#1|) (= |#NULL.offset| 0) (= (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ 76 |ULTIMATE.start_main_~#x~0#1.offset|)) |ULTIMATE.start_main_~temp~0#1|) (<= 0 |ULTIMATE.start_main_~#x~0#1.base|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-23 15:24:34,948 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:24:34,948 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:24:34,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 23 [2022-11-23 15:24:34,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053948450] [2022-11-23 15:24:34,949 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:24:34,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-23 15:24:34,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:24:34,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-23 15:24:34,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=313, Invalid=947, Unknown=0, NotChecked=0, Total=1260 [2022-11-23 15:24:34,951 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand has 23 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 23 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 15:24:35,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:24:35,024 INFO L93 Difference]: Finished difference Result 91 states and 108 transitions. [2022-11-23 15:24:35,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-23 15:24:35,024 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 23 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 82 [2022-11-23 15:24:35,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:24:35,027 INFO L225 Difference]: With dead ends: 91 [2022-11-23 15:24:35,027 INFO L226 Difference]: Without dead ends: 61 [2022-11-23 15:24:35,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 219 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=313, Invalid=947, Unknown=0, NotChecked=0, Total=1260 [2022-11-23 15:24:35,033 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:24:35,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:24:35,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-23 15:24:35,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-11-23 15:24:35,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 56 states have (on average 1.0535714285714286) internal successors, (59), 56 states have internal predecessors, (59), 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) [2022-11-23 15:24:35,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 65 transitions. [2022-11-23 15:24:35,048 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 65 transitions. Word has length 82 [2022-11-23 15:24:35,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:24:35,051 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 65 transitions. [2022-11-23 15:24:35,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 23 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 15:24:35,052 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 65 transitions. [2022-11-23 15:24:35,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-23 15:24:35,055 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:24:35,055 INFO L195 NwaCegarLoop]: trace histogram [60, 20, 6, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:24:35,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-23 15:24:35,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:24:35,267 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:24:35,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:24:35,268 INFO L85 PathProgramCache]: Analyzing trace with hash -652230501, now seen corresponding path program 8 times [2022-11-23 15:24:35,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:24:35,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356273108] [2022-11-23 15:24:35,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:24:35,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:24:35,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:24:35,626 INFO L134 CoverageAnalysis]: Checked inductivity of 2190 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2169 trivial. 0 not checked. [2022-11-23 15:24:35,627 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:24:35,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356273108] [2022-11-23 15:24:35,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356273108] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:24:35,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823220905] [2022-11-23 15:24:35,628 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 15:24:35,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:24:35,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:24:35,629 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:24:35,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-23 15:24:35,879 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-23 15:24:35,879 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:24:35,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-23 15:24:35,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:24:35,908 INFO L134 CoverageAnalysis]: Checked inductivity of 2190 backedges. 886 proven. 21 refuted. 0 times theorem prover too weak. 1283 trivial. 0 not checked. [2022-11-23 15:24:35,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:24:36,024 INFO L134 CoverageAnalysis]: Checked inductivity of 2190 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2169 trivial. 0 not checked. [2022-11-23 15:24:36,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1823220905] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:24:36,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [182896052] [2022-11-23 15:24:36,027 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-23 15:24:36,027 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:24:36,028 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:24:36,028 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:24:36,028 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:24:36,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:36,060 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:24:36,060 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 [2022-11-23 15:24:36,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:36,071 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 [2022-11-23 15:24:36,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:36,096 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 [2022-11-23 15:24:36,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:36,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:36,169 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-11-23 15:24:36,169 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 [2022-11-23 15:24:36,220 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 [2022-11-23 15:24:36,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:36,278 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 [2022-11-23 15:24:36,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:36,375 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 [2022-11-23 15:24:36,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:36,436 INFO L321 Elim1Store]: treesize reduction 45, result has 34.8 percent of original size [2022-11-23 15:24:36,436 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 [2022-11-23 15:24:36,490 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 [2022-11-23 15:24:36,500 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 [2022-11-23 15:24:36,610 INFO L197 IcfgInterpreter]: Interpreting procedure sum with input of size 12 for LOIs [2022-11-23 15:24:36,638 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:24:41,681 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4378#(and (<= |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)) (<= 19 |ULTIMATE.start_main_~i~2#1|) (<= 20 |ULTIMATE.start_main_~i~1#1|) (= |#NULL.offset| 0) (= (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ 76 |ULTIMATE.start_main_~#x~0#1.offset|)) |ULTIMATE.start_main_~temp~0#1|) (<= 0 |ULTIMATE.start_main_~#x~0#1.base|) (<= 0 |#StackHeapBarrier|) (exists ((v_sum_~ret~0_BEFORE_RETURN_48 Int)) (= |ULTIMATE.start_main_~ret5~0#1| (ite (<= (mod v_sum_~ret~0_BEFORE_RETURN_48 4294967296) 2147483647) (mod v_sum_~ret~0_BEFORE_RETURN_48 4294967296) (+ (mod v_sum_~ret~0_BEFORE_RETURN_48 4294967296) (- 4294967296))))) (= |#NULL.base| 0))' at error location [2022-11-23 15:24:41,681 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:24:41,681 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:24:41,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2022-11-23 15:24:41,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473733606] [2022-11-23 15:24:41,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:24:41,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-23 15:24:41,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:24:41,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 15:24:41,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=674, Unknown=0, NotChecked=0, Total=870 [2022-11-23 15:24:41,684 INFO L87 Difference]: Start difference. First operand 61 states and 65 transitions. Second operand has 17 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 17 states have internal predecessors, (31), 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) [2022-11-23 15:24:41,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:24:41,759 INFO L93 Difference]: Finished difference Result 97 states and 109 transitions. [2022-11-23 15:24:41,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-23 15:24:41,760 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 17 states have internal predecessors, (31), 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 106 [2022-11-23 15:24:41,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:24:41,765 INFO L225 Difference]: With dead ends: 97 [2022-11-23 15:24:41,765 INFO L226 Difference]: Without dead ends: 69 [2022-11-23 15:24:41,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=196, Invalid=674, Unknown=0, NotChecked=0, Total=870 [2022-11-23 15:24:41,767 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:24:41,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:24:41,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-23 15:24:41,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-11-23 15:24:41,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 64 states have (on average 1.046875) internal successors, (67), 64 states have internal predecessors, (67), 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) [2022-11-23 15:24:41,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 73 transitions. [2022-11-23 15:24:41,790 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 73 transitions. Word has length 106 [2022-11-23 15:24:41,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:24:41,791 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 73 transitions. [2022-11-23 15:24:41,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 17 states have internal predecessors, (31), 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) [2022-11-23 15:24:41,791 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 73 transitions. [2022-11-23 15:24:41,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-23 15:24:41,798 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:24:41,799 INFO L195 NwaCegarLoop]: trace histogram [60, 20, 14, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:24:41,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-23 15:24:42,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-23 15:24:42,006 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:24:42,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:24:42,007 INFO L85 PathProgramCache]: Analyzing trace with hash 883063451, now seen corresponding path program 9 times [2022-11-23 15:24:42,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:24:42,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216348341] [2022-11-23 15:24:42,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:24:42,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:24:42,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:24:42,702 INFO L134 CoverageAnalysis]: Checked inductivity of 2274 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 2169 trivial. 0 not checked. [2022-11-23 15:24:42,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:24:42,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216348341] [2022-11-23 15:24:42,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216348341] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:24:42,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563843985] [2022-11-23 15:24:42,703 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 15:24:42,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:24:42,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:24:42,705 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:24:42,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-23 15:24:42,972 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 15:24:42,972 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:24:42,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 702 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-23 15:24:42,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:24:43,022 INFO L134 CoverageAnalysis]: Checked inductivity of 2274 backedges. 886 proven. 105 refuted. 0 times theorem prover too weak. 1283 trivial. 0 not checked. [2022-11-23 15:24:43,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:24:43,295 INFO L134 CoverageAnalysis]: Checked inductivity of 2274 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 2169 trivial. 0 not checked. [2022-11-23 15:24:43,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563843985] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:24:43,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [437316596] [2022-11-23 15:24:43,297 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-23 15:24:43,298 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:24:43,298 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:24:43,298 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:24:43,298 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:24:43,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:43,334 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:24:43,334 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 [2022-11-23 15:24:43,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:43,347 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 [2022-11-23 15:24:43,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:43,367 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 [2022-11-23 15:24:43,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:43,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:43,426 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-11-23 15:24:43,426 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 [2022-11-23 15:24:43,461 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 [2022-11-23 15:24:43,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:43,534 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 [2022-11-23 15:24:43,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:43,620 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 25 treesize of output 20 [2022-11-23 15:24:43,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:43,677 INFO L321 Elim1Store]: treesize reduction 45, result has 34.8 percent of original size [2022-11-23 15:24:43,678 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 [2022-11-23 15:24:43,717 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 [2022-11-23 15:24:43,730 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 [2022-11-23 15:24:43,841 INFO L197 IcfgInterpreter]: Interpreting procedure sum with input of size 12 for LOIs [2022-11-23 15:24:43,869 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:24:47,087 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5402#(and (<= |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_53 Int)) (= |ULTIMATE.start_main_~ret5~0#1| (ite (<= (mod v_sum_~ret~0_BEFORE_RETURN_53 4294967296) 2147483647) (mod v_sum_~ret~0_BEFORE_RETURN_53 4294967296) (+ (mod v_sum_~ret~0_BEFORE_RETURN_53 4294967296) (- 4294967296))))) (<= 0 (+ |ULTIMATE.start_main_~ret2~0#1| 2147483648)) (<= 19 |ULTIMATE.start_main_~i~2#1|) (<= 20 |ULTIMATE.start_main_~i~1#1|) (= |#NULL.offset| 0) (= (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ 76 |ULTIMATE.start_main_~#x~0#1.offset|)) |ULTIMATE.start_main_~temp~0#1|) (<= 0 |ULTIMATE.start_main_~#x~0#1.base|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-23 15:24:47,088 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:24:47,088 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:24:47,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 22 [2022-11-23 15:24:47,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575618206] [2022-11-23 15:24:47,089 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:24:47,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-23 15:24:47,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:24:47,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-23 15:24:47,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=291, Invalid=899, Unknown=0, NotChecked=0, Total=1190 [2022-11-23 15:24:47,091 INFO L87 Difference]: Start difference. First operand 69 states and 73 transitions. Second operand has 22 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 22 states have internal predecessors, (37), 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) [2022-11-23 15:24:47,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:24:47,163 INFO L93 Difference]: Finished difference Result 102 states and 111 transitions. [2022-11-23 15:24:47,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-23 15:24:47,163 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 22 states have internal predecessors, (37), 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 114 [2022-11-23 15:24:47,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:24:47,165 INFO L225 Difference]: With dead ends: 102 [2022-11-23 15:24:47,165 INFO L226 Difference]: Without dead ends: 74 [2022-11-23 15:24:47,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 313 SyntacticMatches, 11 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=291, Invalid=899, Unknown=0, NotChecked=0, Total=1190 [2022-11-23 15:24:47,167 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:24:47,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:24:47,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-23 15:24:47,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-11-23 15:24:47,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 69 states have (on average 1.0434782608695652) internal successors, (72), 69 states have internal predecessors, (72), 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) [2022-11-23 15:24:47,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 78 transitions. [2022-11-23 15:24:47,176 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 78 transitions. Word has length 114 [2022-11-23 15:24:47,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:24:47,177 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 78 transitions. [2022-11-23 15:24:47,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 22 states have internal predecessors, (37), 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) [2022-11-23 15:24:47,177 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 78 transitions. [2022-11-23 15:24:47,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-23 15:24:47,179 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:24:47,179 INFO L195 NwaCegarLoop]: trace histogram [60, 20, 19, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:24:47,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-11-23 15:24:47,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-23 15:24:47,391 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:24:47,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:24:47,391 INFO L85 PathProgramCache]: Analyzing trace with hash -589450609, now seen corresponding path program 10 times [2022-11-23 15:24:47,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:24:47,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803235213] [2022-11-23 15:24:47,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:24:47,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:24:50,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:26:45,344 INFO L134 CoverageAnalysis]: Checked inductivity of 2359 backedges. 2 proven. 2331 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-23 15:26:45,344 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:26:45,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803235213] [2022-11-23 15:26:45,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803235213] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:26:45,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961539349] [2022-11-23 15:26:45,345 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-23 15:26:45,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:26:45,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:26:45,346 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:26:45,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d91d912d-415d-4f49-8756-7517c3bedad4/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-23 15:26:48,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:26:48,800 WARN L261 TraceCheckSpWp]: Trace formula consists of 737 conjuncts, 464 conjunts are in the unsatisfiable core [2022-11-23 15:26:48,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:26:49,250 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 [2022-11-23 15:27:00,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:00,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:00,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:00,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:00,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:00,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:00,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:00,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:00,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:00,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:00,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:00,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:00,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:00,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:00,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:00,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:00,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:00,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:00,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:00,342 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:27:00,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 20 select indices, 20 select index equivalence classes, 190 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 190 case distinctions, treesize of input 883 treesize of output 343 [2022-11-23 15:27:17,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,628 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:27:17,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,704 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:27:17,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:17,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:29:18,221 WARN L233 SmtUtils]: Spent 2.01m on a formula simplification. DAG size of input: 3208 DAG size of output: 431 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 15:29:18,223 INFO L321 Elim1Store]: treesize reduction 12083, result has 8.7 percent of original size [2022-11-23 15:29:18,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 61 select indices, 61 select index equivalence classes, 190 disjoint index pairs (out of 1830 index pairs), introduced 61 new quantified variables, introduced 1870 case distinctions, treesize of input 1335 treesize of output 1614 [2022-11-23 15:30:37,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,253 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:30:37,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,276 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:30:37,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,301 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:30:37,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,336 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:30:37,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,345 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:30:37,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,362 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:30:37,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,388 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:30:37,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,419 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:30:37,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,428 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:30:37,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,456 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:30:37,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,464 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:30:37,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,483 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:30:37,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,497 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:30:37,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,502 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:30:37,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,514 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:30:37,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,523 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:30:37,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,527 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:30:37,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:37,532 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:31:03,512 WARN L233 SmtUtils]: Spent 25.97s on a formula simplification. DAG size of input: 2061 DAG size of output: 207 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 15:31:03,513 INFO L321 Elim1Store]: treesize reduction 7508, result has 6.2 percent of original size [2022-11-23 15:31:03,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 58 select indices, 58 select index equivalence classes, 190 disjoint index pairs (out of 1653 index pairs), introduced 58 new quantified variables, introduced 1673 case distinctions, treesize of input 1297 treesize of output 1094 [2022-11-23 15:33:58,059 WARN L233 SmtUtils]: Spent 15.94s on a formula simplification. DAG size of input: 600 DAG size of output: 168 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:33:58,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,135 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:33:58,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,155 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:33:58,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,170 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:33:58,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,187 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:33:58,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,206 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:33:58,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,213 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:33:58,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,225 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:33:58,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,242 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:33:58,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,255 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:33:58,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,260 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:33:58,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,276 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:33:58,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,281 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:33:58,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,297 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:33:58,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,307 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:33:58,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,316 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:33:58,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,328 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:33:58,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,332 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:33:58,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:58,335 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:34:21,551 WARN L233 SmtUtils]: Spent 23.21s on a formula simplification. DAG size of input: 1971 DAG size of output: 214 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 15:34:21,552 INFO L321 Elim1Store]: treesize reduction 7149, result has 6.2 percent of original size [2022-11-23 15:34:21,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 57 select indices, 57 select index equivalence classes, 190 disjoint index pairs (out of 1596 index pairs), introduced 57 new quantified variables, introduced 1615 case distinctions, treesize of input 1283 treesize of output 1072