./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-patterns/array19_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-patterns/array19_pattern.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs --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 21ab39d122ec2c6e96fa6b8c9d53d6f966068253a8a3d3ba32389613dd7dc54a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:37:53,848 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:37:53,852 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:37:53,913 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:37:53,914 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:37:53,919 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:37:53,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:37:53,927 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:37:53,929 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:37:53,937 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:37:53,938 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:37:53,940 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:37:53,941 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:37:53,944 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:37:53,947 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:37:53,954 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:37:53,956 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:37:53,957 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:37:53,959 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:37:53,961 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:37:53,963 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:37:53,967 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:37:53,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:37:53,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:37:53,983 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:37:53,984 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:37:53,985 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:37:53,987 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:37:53,988 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:37:53,989 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:37:53,990 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:37:53,990 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:37:53,992 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:37:53,994 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:37:53,997 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:37:53,997 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:37:53,998 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:37:53,998 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:37:53,998 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:37:53,999 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:37:54,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:37:54,000 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-19 13:37:54,046 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:37:54,046 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:37:54,048 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:37:54,048 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:37:54,048 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:37:54,048 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:37:54,055 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:37:54,055 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:37:54,055 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:37:54,055 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:37:54,057 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:37:54,057 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:37:54,057 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:37:54,057 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:37:54,058 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:37:54,058 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:37:54,059 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:37:54,059 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 13:37:54,059 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:37:54,059 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 13:37:54,059 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:37:54,060 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:37:54,060 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:37:54,060 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:37:54,060 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:37:54,060 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 13:37:54,061 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:37:54,061 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:37:54,061 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:37:54,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:37:54,063 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:37:54,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:37:54,063 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:37:54,064 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:37:54,064 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:37:54,064 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:37:54,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:37:54,065 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:37:54,065 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:37:54,065 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:37:54,065 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 21ab39d122ec2c6e96fa6b8c9d53d6f966068253a8a3d3ba32389613dd7dc54a [2021-11-19 13:37:54,370 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:37:54,404 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:37:54,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:37:54,408 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:37:54,409 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:37:54,410 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/array-patterns/array19_pattern.c [2021-11-19 13:37:54,492 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/data/8561998bb/64b72de291f84439af79ebe7e1b95f96/FLAGf16de4773 [2021-11-19 13:37:54,915 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:37:54,916 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/sv-benchmarks/c/array-patterns/array19_pattern.c [2021-11-19 13:37:54,922 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/data/8561998bb/64b72de291f84439af79ebe7e1b95f96/FLAGf16de4773 [2021-11-19 13:37:55,314 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/data/8561998bb/64b72de291f84439af79ebe7e1b95f96 [2021-11-19 13:37:55,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:37:55,318 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:37:55,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:37:55,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:37:55,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:37:55,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:37:55" (1/1) ... [2021-11-19 13:37:55,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30e02309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:55, skipping insertion in model container [2021-11-19 13:37:55,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:37:55" (1/1) ... [2021-11-19 13:37:55,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:37:55,350 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:37:55,501 WARN L230 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_6fb20955-546b-4fc0-8316-2d38e7f12fc2/sv-benchmarks/c/array-patterns/array19_pattern.c[1442,1455] [2021-11-19 13:37:55,552 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:37:55,560 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:37:55,573 WARN L230 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_6fb20955-546b-4fc0-8316-2d38e7f12fc2/sv-benchmarks/c/array-patterns/array19_pattern.c[1442,1455] [2021-11-19 13:37:55,587 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:37:55,600 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:37:55,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:55 WrapperNode [2021-11-19 13:37:55,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:37:55,602 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:37:55,602 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:37:55,602 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:37:55,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:55" (1/1) ... [2021-11-19 13:37:55,627 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:55" (1/1) ... [2021-11-19 13:37:55,663 INFO L137 Inliner]: procedures = 16, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 102 [2021-11-19 13:37:55,663 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:37:55,664 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:37:55,664 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:37:55,665 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:37:55,679 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:55" (1/1) ... [2021-11-19 13:37:55,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:55" (1/1) ... [2021-11-19 13:37:55,698 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:55" (1/1) ... [2021-11-19 13:37:55,698 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:55" (1/1) ... [2021-11-19 13:37:55,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:55" (1/1) ... [2021-11-19 13:37:55,726 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:55" (1/1) ... [2021-11-19 13:37:55,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:55" (1/1) ... [2021-11-19 13:37:55,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:37:55,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:37:55,732 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:37:55,733 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:37:55,734 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:55" (1/1) ... [2021-11-19 13:37:55,742 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:37:55,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:37:55,768 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:37:55,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:37:55,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:37:55,814 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-19 13:37:55,814 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-19 13:37:55,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 13:37:55,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:37:55,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-19 13:37:55,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:37:55,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:37:55,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-19 13:37:55,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:37:55,886 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:37:55,888 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:37:56,062 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:37:56,134 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:37:56,135 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-19 13:37:56,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:37:56 BoogieIcfgContainer [2021-11-19 13:37:56,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:37:56,140 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:37:56,140 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:37:56,144 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:37:56,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:37:55" (1/3) ... [2021-11-19 13:37:56,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a5ba26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:37:56, skipping insertion in model container [2021-11-19 13:37:56,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:55" (2/3) ... [2021-11-19 13:37:56,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a5ba26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:37:56, skipping insertion in model container [2021-11-19 13:37:56,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:37:56" (3/3) ... [2021-11-19 13:37:56,148 INFO L111 eAbstractionObserver]: Analyzing ICFG array19_pattern.c [2021-11-19 13:37:56,154 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:37:56,154 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 13:37:56,244 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:37:56,259 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 13:37:56,259 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 13:37:56,285 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) [2021-11-19 13:37:56,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-19 13:37:56,291 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:37:56,292 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:37:56,292 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:37:56,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:37:56,298 INFO L85 PathProgramCache]: Analyzing trace with hash -2071670553, now seen corresponding path program 1 times [2021-11-19 13:37:56,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:37:56,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773613966] [2021-11-19 13:37:56,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:56,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:37:56,438 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-19 13:37:56,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [270256373] [2021-11-19 13:37:56,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:56,439 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:37:56,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:37:56,449 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:37:56,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-19 13:37:56,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:37:56,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 13:37:56,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:37:56,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:37:56,585 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:37:56,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:37:56,617 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:37:56,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773613966] [2021-11-19 13:37:56,618 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:37:56,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270256373] [2021-11-19 13:37:56,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [270256373] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:37:56,619 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:37:56,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 13:37:56,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907791989] [2021-11-19 13:37:56,623 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:37:56,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 13:37:56,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:37:56,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 13:37:56,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 13:37:56,657 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) [2021-11-19 13:37:56,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:37:56,725 INFO L93 Difference]: Finished difference Result 28 states and 38 transitions. [2021-11-19 13:37:56,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 13:37:56,728 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 [2021-11-19 13:37:56,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:37:56,735 INFO L225 Difference]: With dead ends: 28 [2021-11-19 13:37:56,735 INFO L226 Difference]: Without dead ends: 18 [2021-11-19 13:37:56,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 13:37:56,743 INFO L933 BasicCegarLoop]: 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 [2021-11-19 13:37:56,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:37:56,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-11-19 13:37:56,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-11-19 13:37:56,782 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) [2021-11-19 13:37:56,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2021-11-19 13:37:56,784 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 24 transitions. Word has length 11 [2021-11-19 13:37:56,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:37:56,786 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-11-19 13:37:56,786 INFO L471 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) [2021-11-19 13:37:56,786 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2021-11-19 13:37:56,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-19 13:37:56,788 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:37:56,788 INFO L514 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:37:56,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-19 13:37:57,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-19 13:37:57,009 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:37:57,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:37:57,016 INFO L85 PathProgramCache]: Analyzing trace with hash 916633033, now seen corresponding path program 1 times [2021-11-19 13:37:57,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:37:57,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121617539] [2021-11-19 13:37:57,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:57,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:37:57,052 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-19 13:37:57,053 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1774773005] [2021-11-19 13:37:57,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:57,053 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:37:57,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:37:57,056 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:37:57,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-19 13:37:57,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:37:57,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 13:37:57,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:37:57,281 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-19 13:37:57,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:37:57,569 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-19 13:37:57,569 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:37:57,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121617539] [2021-11-19 13:37:57,570 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:37:57,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774773005] [2021-11-19 13:37:57,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774773005] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:37:57,570 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:37:57,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-19 13:37:57,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954222852] [2021-11-19 13:37:57,571 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:37:57,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:37:57,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:37:57,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:37:57,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:37:57,574 INFO L87 Difference]: Start difference. First operand 18 states and 24 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2021-11-19 13:37:57,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:37:57,649 INFO L93 Difference]: Finished difference Result 23 states and 30 transitions. [2021-11-19 13:37:57,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:37:57,650 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 19 [2021-11-19 13:37:57,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:37:57,651 INFO L225 Difference]: With dead ends: 23 [2021-11-19 13:37:57,651 INFO L226 Difference]: Without dead ends: 20 [2021-11-19 13:37:57,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:37:57,654 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 7 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:37:57,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 43 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:37:57,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-11-19 13:37:57,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-11-19 13:37:57,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 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) [2021-11-19 13:37:57,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2021-11-19 13:37:57,663 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 27 transitions. Word has length 19 [2021-11-19 13:37:57,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:37:57,663 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-11-19 13:37:57,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2021-11-19 13:37:57,664 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2021-11-19 13:37:57,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-19 13:37:57,674 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:37:57,675 INFO L514 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:37:57,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-19 13:37:57,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:37:57,885 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:37:57,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:37:57,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1792495404, now seen corresponding path program 1 times [2021-11-19 13:37:57,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:37:57,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016198661] [2021-11-19 13:37:57,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:57,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:37:57,913 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-19 13:37:57,914 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1184969920] [2021-11-19 13:37:57,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:57,914 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:37:57,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:37:57,919 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:37:57,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-19 13:37:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:37:57,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:37:57,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:37:58,141 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-19 13:37:58,141 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:37:58,251 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-19 13:37:58,251 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:37:58,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016198661] [2021-11-19 13:37:58,251 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:37:58,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184969920] [2021-11-19 13:37:58,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184969920] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:37:58,252 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:37:58,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-19 13:37:58,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944073074] [2021-11-19 13:37:58,255 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:37:58,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:37:58,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:37:58,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:37:58,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:37:58,260 INFO L87 Difference]: Start difference. First operand 20 states and 27 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-19 13:37:58,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:37:58,441 INFO L93 Difference]: Finished difference Result 41 states and 56 transitions. [2021-11-19 13:37:58,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 13:37:58,442 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 22 [2021-11-19 13:37:58,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:37:58,444 INFO L225 Difference]: With dead ends: 41 [2021-11-19 13:37:58,444 INFO L226 Difference]: Without dead ends: 25 [2021-11-19 13:37:58,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-19 13:37:58,446 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 21 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:37:58,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 35 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:37:58,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-11-19 13:37:58,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 21. [2021-11-19 13:37:58,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.375) internal successors, (22), 16 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) [2021-11-19 13:37:58,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 28 transitions. [2021-11-19 13:37:58,458 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 28 transitions. Word has length 22 [2021-11-19 13:37:58,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:37:58,458 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 28 transitions. [2021-11-19 13:37:58,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-19 13:37:58,458 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2021-11-19 13:37:58,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-19 13:37:58,459 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:37:58,459 INFO L514 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:37:58,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-19 13:37:58,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:37:58,660 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:37:58,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:37:58,661 INFO L85 PathProgramCache]: Analyzing trace with hash -957199016, now seen corresponding path program 1 times [2021-11-19 13:37:58,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:37:58,661 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683446155] [2021-11-19 13:37:58,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:58,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:37:58,673 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-19 13:37:58,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1769977705] [2021-11-19 13:37:58,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:58,673 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:37:58,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:37:58,675 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:37:58,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-19 13:37:58,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:37:58,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:37:58,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:37:58,845 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 13:37:58,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:37:58,922 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-19 13:37:58,922 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:37:58,922 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683446155] [2021-11-19 13:37:58,922 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 13:37:58,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769977705] [2021-11-19 13:37:58,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769977705] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:37:58,923 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:37:58,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-19 13:37:58,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672140316] [2021-11-19 13:37:58,925 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:37:58,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:37:58,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:37:58,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:37:58,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:37:58,930 INFO L87 Difference]: Start difference. First operand 21 states and 28 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-19 13:37:59,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:37:59,011 INFO L93 Difference]: Finished difference Result 40 states and 55 transitions. [2021-11-19 13:37:59,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:37:59,012 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 24 [2021-11-19 13:37:59,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:37:59,022 INFO L225 Difference]: With dead ends: 40 [2021-11-19 13:37:59,022 INFO L226 Difference]: Without dead ends: 23 [2021-11-19 13:37:59,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:37:59,028 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 12 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:37:59,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 41 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:37:59,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-11-19 13:37:59,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2021-11-19 13:37:59,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 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) [2021-11-19 13:37:59,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 28 transitions. [2021-11-19 13:37:59,050 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 28 transitions. Word has length 24 [2021-11-19 13:37:59,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:37:59,050 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 28 transitions. [2021-11-19 13:37:59,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-19 13:37:59,051 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2021-11-19 13:37:59,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-19 13:37:59,055 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:37:59,055 INFO L514 BasicCegarLoop]: 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] [2021-11-19 13:37:59,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-19 13:37:59,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:37:59,281 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:37:59,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:37:59,282 INFO L85 PathProgramCache]: Analyzing trace with hash 566593900, now seen corresponding path program 1 times [2021-11-19 13:37:59,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:37:59,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054841919] [2021-11-19 13:37:59,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:59,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:37:59,302 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-19 13:37:59,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [34469609] [2021-11-19 13:37:59,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:37:59,303 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:37:59,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:37:59,305 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:37:59,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fb20955-546b-4fc0-8316-2d38e7f12fc2/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-19 13:37:59,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:37:59,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-19 13:37:59,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:37:59,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-19 13:37:59,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-19 13:38:01,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 16 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 17 new quantified variables, introduced 0 case distinctions, treesize of input 2567 treesize of output 2517 [2021-11-19 13:39:32,016 WARN L227 SmtUtils]: Spent 1.51m on a formula simplification. DAG size of input: 2807 DAG size of output: 432 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 13:39:32,032 INFO L354 Elim1Store]: treesize reduction 79273, result has 4.9 percent of original size [2021-11-19 13:39:32,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 16 stores, 17 select indices, 17 select index equivalence classes, 0 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 416 case distinctions, treesize of input 3677 treesize of output 6854 [2021-11-19 13:39:36,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:36,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:36,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:36,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:36,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:36,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:36,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:36,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:36,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:36,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:36,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:36,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:36,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:36,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:36,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:36,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:36,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:36,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:37,095 INFO L244 Elim1Store]: Index analysis took 612 ms [2021-11-19 13:39:38,087 INFO L354 Elim1Store]: treesize reduction 279, result has 38.8 percent of original size [2021-11-19 13:39:38,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 18 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 502 treesize of output 502 [2021-11-19 13:39:40,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:40,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:40,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:40,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:40,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:40,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:40,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:40,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:40,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:40,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:40,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:40,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:40,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:40,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:40,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:40,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:40,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:40,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:40,980 INFO L244 Elim1Store]: Index analysis took 528 ms [2021-11-19 13:39:41,709 INFO L354 Elim1Store]: treesize reduction 325, result has 23.7 percent of original size [2021-11-19 13:39:41,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 18 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 443 treesize of output 377 [2021-11-19 13:39:42,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:42,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:42,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:42,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:42,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:42,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:42,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:42,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:42,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:42,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:42,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:42,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:42,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:42,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:42,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:42,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:42,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:42,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:42,910 INFO L244 Elim1Store]: Index analysis took 564 ms [2021-11-19 13:39:43,116 INFO L354 Elim1Store]: treesize reduction 397, result has 7.9 percent of original size [2021-11-19 13:39:43,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 18 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 903 treesize of output 565 [2021-11-19 13:39:45,322 INFO L354 Elim1Store]: treesize reduction 979, result has 15.3 percent of original size [2021-11-19 13:39:45,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 5580 treesize of output 5375 [2021-11-19 13:39:47,299 INFO L354 Elim1Store]: treesize reduction 1481, result has 8.0 percent of original size [2021-11-19 13:39:47,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 5600 treesize of output 5196 [2021-11-19 13:39:48,573 INFO L354 Elim1Store]: treesize reduction 1180, result has 6.9 percent of original size [2021-11-19 13:39:48,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 5591 treesize of output 5344 [2021-11-19 13:39:49,987 INFO L354 Elim1Store]: treesize reduction 1502, result has 8.0 percent of original size [2021-11-19 13:39:49,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 5456 treesize of output 5382 [2021-11-19 13:39:53,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:53,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:53,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:53,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:53,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:53,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:53,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:53,936 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:39:53,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:53,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:53,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:53,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:53,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:53,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:54,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:54,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:54,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:54,102 INFO L244 Elim1Store]: Index analysis took 340 ms [2021-11-19 13:39:54,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 619 treesize of output 341 [2021-11-19 13:39:55,800 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-19 13:39:56,772 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-19 13:39:56,922 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-19 13:39:58,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:58,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:58,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:58,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:58,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:58,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:58,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:58,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:58,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:58,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:58,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:58,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:58,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:58,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:58,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:58,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:58,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:58,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:58,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:58,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:58,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:58,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:58,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:58,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:58,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:39:58,733 INFO L244 Elim1Store]: Index analysis took 380 ms [2021-11-19 13:39:58,891 INFO L354 Elim1Store]: treesize reduction 107, result has 24.1 percent of original size [2021-11-19 13:39:58,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 3 case distinctions, treesize of input 668 treesize of output 401 [2021-11-19 13:40:00,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:00,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:00,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:00,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:00,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:00,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:00,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:00,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:00,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:00,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:00,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:00,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:00,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:00,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:00,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:00,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:00,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:00,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:00,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:00,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:00,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:40:00,844 INFO L244 Elim1Store]: Index analysis took 254 ms [2021-11-19 13:40:00,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 617 treesize of output 340