./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-patterns/array16_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-patterns/array16_pattern.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/bin/utaipan-I9t0OCRTmS --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 db57f1195f9e10b53cb5b54e10ee768ec758884b71e7f0bbf52d0c8cfb29e46d --- 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-8393723 [2022-11-19 06:47:57,729 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:47:57,731 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:47:57,749 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:47:57,749 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:47:57,750 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:47:57,752 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:47:57,753 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:47:57,755 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:47:57,756 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:47:57,757 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:47:57,758 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:47:57,758 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:47:57,759 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:47:57,760 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:47:57,762 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:47:57,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:47:57,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:47:57,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:47:57,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:47:57,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:47:57,774 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:47:57,775 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:47:57,776 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:47:57,780 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:47:57,780 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:47:57,780 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:47:57,781 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:47:57,782 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:47:57,783 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:47:57,783 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:47:57,784 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:47:57,785 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:47:57,786 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:47:57,787 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:47:57,787 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:47:57,800 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:47:57,800 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:47:57,800 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:47:57,801 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:47:57,802 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:47:57,804 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 06:47:57,846 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:47:57,846 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:47:57,847 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:47:57,847 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:47:57,848 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:47:57,848 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:47:57,848 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:47:57,848 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:47:57,848 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:47:57,849 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:47:57,849 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:47:57,850 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:47:57,850 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:47:57,850 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:47:57,850 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:47:57,850 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:47:57,851 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:47:57,851 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:47:57,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:47:57,852 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 06:47:57,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:47:57,852 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 06:47:57,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:47:57,854 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:47:57,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:47:57,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:47:57,854 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 06:47:57,854 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:47:57,855 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:47:57,855 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:47:57,855 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:47:57,855 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:47:57,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:47:57,856 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:47:57,856 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:47:57,856 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:47:57,856 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:47:57,856 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:47:57,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:47:57,857 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:47:57,857 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:47:57,857 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_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db57f1195f9e10b53cb5b54e10ee768ec758884b71e7f0bbf52d0c8cfb29e46d [2022-11-19 06:47:58,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:47:58,167 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:47:58,171 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:47:58,172 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:47:58,173 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:47:58,174 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/array-patterns/array16_pattern.c [2022-11-19 06:47:58,236 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/bin/utaipan-I9t0OCRTmS/data/baa3244b8/d27f0049683e4ed588099d3de8e393bd/FLAGac4e7f468 [2022-11-19 06:47:58,692 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:47:58,701 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/sv-benchmarks/c/array-patterns/array16_pattern.c [2022-11-19 06:47:58,707 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/bin/utaipan-I9t0OCRTmS/data/baa3244b8/d27f0049683e4ed588099d3de8e393bd/FLAGac4e7f468 [2022-11-19 06:47:59,063 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/bin/utaipan-I9t0OCRTmS/data/baa3244b8/d27f0049683e4ed588099d3de8e393bd [2022-11-19 06:47:59,065 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:47:59,067 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:47:59,068 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:47:59,068 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:47:59,072 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:47:59,072 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:47:59" (1/1) ... [2022-11-19 06:47:59,074 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@539db344 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:59, skipping insertion in model container [2022-11-19 06:47:59,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:47:59" (1/1) ... [2022-11-19 06:47:59,081 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:47:59,096 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:47:59,366 WARN L234 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_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/sv-benchmarks/c/array-patterns/array16_pattern.c[1311,1324] [2022-11-19 06:47:59,414 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:47:59,422 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:47:59,449 WARN L234 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_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/sv-benchmarks/c/array-patterns/array16_pattern.c[1311,1324] [2022-11-19 06:47:59,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:47:59,480 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:47:59,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:59 WrapperNode [2022-11-19 06:47:59,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:47:59,482 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:47:59,482 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:47:59,482 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:47:59,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:59" (1/1) ... [2022-11-19 06:47:59,513 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:59" (1/1) ... [2022-11-19 06:47:59,534 INFO L138 Inliner]: procedures = 16, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 95 [2022-11-19 06:47:59,535 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:47:59,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:47:59,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:47:59,536 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:47:59,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:59" (1/1) ... [2022-11-19 06:47:59,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:59" (1/1) ... [2022-11-19 06:47:59,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:59" (1/1) ... [2022-11-19 06:47:59,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:59" (1/1) ... [2022-11-19 06:47:59,552 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:59" (1/1) ... [2022-11-19 06:47:59,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:59" (1/1) ... [2022-11-19 06:47:59,558 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:59" (1/1) ... [2022-11-19 06:47:59,559 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:59" (1/1) ... [2022-11-19 06:47:59,561 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:47:59,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:47:59,562 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:47:59,562 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:47:59,563 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:59" (1/1) ... [2022-11-19 06:47:59,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:47:59,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:47:59,617 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:47:59,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:47:59,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:47:59,676 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 06:47:59,677 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 06:47:59,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:47:59,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 06:47:59,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 06:47:59,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:47:59,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:47:59,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 06:47:59,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 06:47:59,769 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:47:59,771 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:48:00,011 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:48:00,097 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:48:00,098 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-19 06:48:00,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:48:00 BoogieIcfgContainer [2022-11-19 06:48:00,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:48:00,118 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:48:00,118 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:48:00,122 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:48:00,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:47:59" (1/3) ... [2022-11-19 06:48:00,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e2b7ed2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:48:00, skipping insertion in model container [2022-11-19 06:48:00,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:47:59" (2/3) ... [2022-11-19 06:48:00,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e2b7ed2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:48:00, skipping insertion in model container [2022-11-19 06:48:00,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:48:00" (3/3) ... [2022-11-19 06:48:00,125 INFO L112 eAbstractionObserver]: Analyzing ICFG array16_pattern.c [2022-11-19 06:48:00,151 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:48:00,151 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 06:48:00,209 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:48:00,217 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;@532c009, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:48:00,218 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 06:48:00,223 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 15 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) [2022-11-19 06:48:00,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 06:48:00,234 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:48:00,237 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:48:00,238 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:48:00,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:48:00,247 INFO L85 PathProgramCache]: Analyzing trace with hash 315434556, now seen corresponding path program 1 times [2022-11-19 06:48:00,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:48:00,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497300415] [2022-11-19 06:48:00,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:48:00,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:48:00,399 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 06:48:00,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [29739752] [2022-11-19 06:48:00,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:48:00,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:48:00,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:48:00,406 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:48:00,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 06:48:00,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:48:00,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-19 06:48:00,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:48:00,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:48:00,568 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:48:00,569 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:48:00,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497300415] [2022-11-19 06:48:00,570 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 06:48:00,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29739752] [2022-11-19 06:48:00,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29739752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:48:00,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:48:00,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:48:00,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639428397] [2022-11-19 06:48:00,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:48:00,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 06:48:00,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:48:00,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 06:48:00,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 06:48:00,630 INFO L87 Difference]: Start difference. First operand has 20 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 15 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) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 06:48:00,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:48:00,696 INFO L93 Difference]: Finished difference Result 28 states and 38 transitions. [2022-11-19 06:48:00,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 06:48:00,698 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-11-19 06:48:00,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:48:00,705 INFO L225 Difference]: With dead ends: 28 [2022-11-19 06:48:00,705 INFO L226 Difference]: Without dead ends: 18 [2022-11-19 06:48:00,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 06:48:00,711 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:48:00,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 06:48:00,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-19 06:48:00,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-19 06:48:00,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 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) [2022-11-19 06:48:00,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2022-11-19 06:48:00,748 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 24 transitions. Word has length 11 [2022-11-19 06:48:00,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:48:00,750 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 24 transitions. [2022-11-19 06:48:00,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 06:48:00,750 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2022-11-19 06:48:00,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-19 06:48:00,752 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:48:00,752 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:48:00,759 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 06:48:00,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-19 06:48:00,958 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:48:00,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:48:00,959 INFO L85 PathProgramCache]: Analyzing trace with hash 644195277, now seen corresponding path program 1 times [2022-11-19 06:48:00,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:48:00,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882754144] [2022-11-19 06:48:00,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:48:00,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:48:00,986 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 06:48:00,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [945621350] [2022-11-19 06:48:00,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:48:00,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:48:00,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:48:00,995 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:48:01,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 06:48:01,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:48:01,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 06:48:01,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:48:01,236 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 06:48:01,236 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:48:01,236 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:48:01,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882754144] [2022-11-19 06:48:01,237 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 06:48:01,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945621350] [2022-11-19 06:48:01,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945621350] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:48:01,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:48:01,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:48:01,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204578318] [2022-11-19 06:48:01,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:48:01,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:48:01,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:48:01,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:48:01,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:48:01,241 INFO L87 Difference]: Start difference. First operand 18 states and 24 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2022-11-19 06:48:01,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:48:01,324 INFO L93 Difference]: Finished difference Result 37 states and 49 transitions. [2022-11-19 06:48:01,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:48:01,324 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 19 [2022-11-19 06:48:01,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:48:01,325 INFO L225 Difference]: With dead ends: 37 [2022-11-19 06:48:01,325 INFO L226 Difference]: Without dead ends: 24 [2022-11-19 06:48:01,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-19 06:48:01,327 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 29 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:48:01,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 21 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:48:01,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-19 06:48:01,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2022-11-19 06:48:01,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 06:48:01,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2022-11-19 06:48:01,335 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 19 [2022-11-19 06:48:01,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:48:01,336 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2022-11-19 06:48:01,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2022-11-19 06:48:01,336 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2022-11-19 06:48:01,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-19 06:48:01,337 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:48:01,337 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:48:01,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 06:48:01,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-19 06:48:01,544 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:48:01,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:48:01,544 INFO L85 PathProgramCache]: Analyzing trace with hash 325873406, now seen corresponding path program 1 times [2022-11-19 06:48:01,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:48:01,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370746101] [2022-11-19 06:48:01,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:48:01,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:48:01,561 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 06:48:01,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [487064190] [2022-11-19 06:48:01,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:48:01,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:48:01,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:48:01,564 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:48:01,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 06:48:01,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:48:01,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 06:48:01,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:48:01,667 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 06:48:01,668 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:48:01,668 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:48:01,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370746101] [2022-11-19 06:48:01,669 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 06:48:01,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487064190] [2022-11-19 06:48:01,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487064190] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:48:01,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:48:01,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:48:01,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716966988] [2022-11-19 06:48:01,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:48:01,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:48:01,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:48:01,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:48:01,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:48:01,672 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-11-19 06:48:01,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:48:01,717 INFO L93 Difference]: Finished difference Result 40 states and 52 transitions. [2022-11-19 06:48:01,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:48:01,718 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 23 [2022-11-19 06:48:01,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:48:01,719 INFO L225 Difference]: With dead ends: 40 [2022-11-19 06:48:01,719 INFO L226 Difference]: Without dead ends: 24 [2022-11-19 06:48:01,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:48:01,721 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 14 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:48:01,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 29 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 06:48:01,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-19 06:48:01,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-19 06:48:01,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 06:48:01,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2022-11-19 06:48:01,729 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 23 [2022-11-19 06:48:01,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:48:01,730 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2022-11-19 06:48:01,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-11-19 06:48:01,730 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2022-11-19 06:48:01,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-19 06:48:01,731 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:48:01,731 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:48:01,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 06:48:01,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:48:01,938 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:48:01,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:48:01,939 INFO L85 PathProgramCache]: Analyzing trace with hash 377394655, now seen corresponding path program 1 times [2022-11-19 06:48:01,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:48:01,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677014177] [2022-11-19 06:48:01,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:48:01,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:48:01,956 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 06:48:01,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1342043581] [2022-11-19 06:48:01,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:48:01,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:48:01,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:48:01,959 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:48:01,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985f08af-89a7-4cab-8aeb-2fa7dcc60c91/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 06:48:02,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:48:02,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-19 06:48:02,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:48:02,216 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 11 treesize of output 7 [2022-11-19 06:48:02,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 307 treesize of output 288 [2022-11-19 06:48:03,149 INFO L321 Elim1Store]: treesize reduction 694, result has 5.8 percent of original size [2022-11-19 06:48:03,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 22 case distinctions, treesize of input 291 treesize of output 777 [2022-11-19 06:48:46,271 WARN L233 SmtUtils]: Spent 20.77s on a formula simplification. DAG size of input: 307 DAG size of output: 95 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 06:48:46,273 INFO L321 Elim1Store]: treesize reduction 3696, result has 11.5 percent of original size [2022-11-19 06:48:46,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 10 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 13 new quantified variables, introduced 48 case distinctions, treesize of input 2206 treesize of output 10244 [2022-11-19 06:53:32,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:32,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:32,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:32,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:32,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:32,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:32,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:32,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:32,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:32,863 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:53:32,866 INFO L217 Elim1Store]: Index analysis took 110 ms [2022-11-19 06:54:19,515 WARN L233 SmtUtils]: Spent 46.47s on a formula simplification. DAG size of input: 162 DAG size of output: 57 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 06:54:19,515 INFO L321 Elim1Store]: treesize reduction 1417, result has 10.4 percent of original size [2022-11-19 06:54:19,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 9 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 13 new quantified variables, introduced 28 case distinctions, treesize of input 18374 treesize of output 39330 [2022-11-19 06:57:58,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:58,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:58,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:58,425 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:57:58,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:58,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:58,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:58,485 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:57:58,519 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:57:58,532 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:57:58,582 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:57:58,933 INFO L217 Elim1Store]: Index analysis took 477 ms [2022-11-19 06:57:58,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9857 treesize of output 9352 [2022-11-19 06:58:00,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:00,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:00,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:00,133 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:58:00,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:00,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:00,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:00,272 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:58:00,300 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:58:00,307 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:58:00,350 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:58:00,670 INFO L217 Elim1Store]: Index analysis took 443 ms [2022-11-19 06:58:00,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21625 treesize of output 21015 [2022-11-19 06:58:03,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:03,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:03,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:03,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:03,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:03,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:03,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:03,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:07,543 INFO L217 Elim1Store]: Index analysis took 4263 ms [2022-11-19 06:58:07,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 5 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 9204 treesize of output 15464 [2022-11-19 06:58:15,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:15,559 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:58:15,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:15,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:15,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:15,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:15,627 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:58:15,673 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:58:15,682 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:58:15,735 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:58:16,048 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:58:16,049 INFO L217 Elim1Store]: Index analysis took 447 ms [2022-11-19 06:58:16,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6031 treesize of output 5571 [2022-11-19 06:58:16,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:16,509 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:58:16,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:16,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:16,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:16,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:16,590 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:58:16,663 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:58:16,673 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:58:16,729 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:58:16,970 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:58:17,126 INFO L217 Elim1Store]: Index analysis took 572 ms [2022-11-19 06:58:17,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6031 treesize of output 5571 [2022-11-19 06:58:18,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:18,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:18,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:18,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:18,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:18,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:18,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:18,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:21,507 INFO L217 Elim1Store]: Index analysis took 3099 ms [2022-11-19 06:58:21,513 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 5 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 9271 treesize of output 25743 [2022-11-19 06:58:25,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:25,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:25,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:25,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:25,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:25,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:25,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:25,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:25,714 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:58:26,104 INFO L217 Elim1Store]: Index analysis took 523 ms [2022-11-19 06:58:26,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 11026 treesize of output 14183 [2022-11-19 06:58:27,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:27,594 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:58:27,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:27,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:27,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:27,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:27,661 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:58:27,706 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:58:27,715 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:58:27,756 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:58:28,084 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:58:28,085 INFO L217 Elim1Store]: Index analysis took 452 ms [2022-11-19 06:58:28,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6026 treesize of output 5566 [2022-11-19 06:58:28,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:28,423 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:58:28,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:28,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:28,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:28,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:28,509 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:58:28,571 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:58:28,579 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:58:28,624 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:58:28,839 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:58:28,981 INFO L217 Elim1Store]: Index analysis took 515 ms [2022-11-19 06:58:28,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6026 treesize of output 5566 [2022-11-19 06:58:29,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:29,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:29,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:29,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:29,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:29,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:29,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:29,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:30,013 INFO L217 Elim1Store]: Index analysis took 362 ms [2022-11-19 06:58:30,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 6818 treesize of output 14441 [2022-11-19 06:58:30,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:30,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:30,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:30,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:30,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:30,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:30,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:30,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:30,861 INFO L217 Elim1Store]: Index analysis took 265 ms [2022-11-19 06:58:30,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 7167 treesize of output 9684 [2022-11-19 06:58:31,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:31,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:31,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:31,312 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:58:31,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:31,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:31,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:31,384 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:58:31,413 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:58:31,420 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:58:31,466 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:58:31,830 INFO L217 Elim1Store]: Index analysis took 479 ms [2022-11-19 06:58:31,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9852 treesize of output 9347