./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0504_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0504_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ad4b9fd301578a7ddb25530c70896459a49284f596306d3b6d0c853e43916174 --- 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-b5237d8 [2022-11-22 00:31:42,847 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:31:42,850 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:31:42,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:31:42,878 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:31:42,882 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:31:42,886 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:31:42,889 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:31:42,891 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:31:42,896 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:31:42,898 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:31:42,900 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:31:42,900 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:31:42,903 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:31:42,905 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:31:42,907 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:31:42,908 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:31:42,909 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:31:42,911 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:31:42,918 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:31:42,919 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:31:42,921 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:31:42,923 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:31:42,924 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:31:42,933 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:31:42,934 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:31:42,934 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:31:42,936 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:31:42,936 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:31:42,938 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:31:42,938 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:31:42,939 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:31:42,941 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:31:42,942 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:31:42,944 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:31:42,944 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:31:42,945 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:31:42,945 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:31:42,945 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:31:42,946 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:31:42,947 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:31:42,948 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 00:31:42,977 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:31:42,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:31:42,978 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:31:42,978 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:31:42,979 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:31:42,979 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:31:42,979 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:31:42,979 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:31:42,980 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:31:42,980 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:31:42,980 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:31:42,980 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:31:42,980 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:31:42,981 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:31:42,981 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:31:42,981 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:31:42,981 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:31:42,982 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:31:42,982 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:31:42,982 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 00:31:42,983 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 00:31:42,983 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:31:42,983 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 00:31:42,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:31:42,984 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:31:42,984 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:31:42,984 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:31:42,984 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 00:31:42,984 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 00:31:42,985 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:31:42,985 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:31:42,985 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:31:42,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:31:42,985 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:31:42,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:31:42,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:31:42,986 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:31:42,986 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:31:42,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:31:42,987 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:31:42,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:31:42,987 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:31:42,987 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:31:42,988 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_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad4b9fd301578a7ddb25530c70896459a49284f596306d3b6d0c853e43916174 [2022-11-22 00:31:43,257 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:31:43,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:31:43,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:31:43,294 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:31:43,295 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:31:43,296 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/list-ext-properties/test-0504_1.i [2022-11-22 00:31:46,375 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:31:46,627 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:31:46,631 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/sv-benchmarks/c/list-ext-properties/test-0504_1.i [2022-11-22 00:31:46,644 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/data/a1e70352e/b8b6e6a158594df0a31445011a4911b6/FLAG8fa89d62e [2022-11-22 00:31:46,658 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/data/a1e70352e/b8b6e6a158594df0a31445011a4911b6 [2022-11-22 00:31:46,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:31:46,662 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:31:46,663 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:31:46,663 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:31:46,667 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:31:46,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:31:46" (1/1) ... [2022-11-22 00:31:46,668 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b3aab6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:31:46, skipping insertion in model container [2022-11-22 00:31:46,669 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:31:46" (1/1) ... [2022-11-22 00:31:46,678 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:31:46,731 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:31:47,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:31:47,109 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:31:47,148 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:31:47,173 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:31:47,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:31:47 WrapperNode [2022-11-22 00:31:47,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:31:47,175 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:31:47,175 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:31:47,176 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:31:47,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:31:47" (1/1) ... [2022-11-22 00:31:47,204 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:31:47" (1/1) ... [2022-11-22 00:31:47,226 INFO L138 Inliner]: procedures = 123, calls = 28, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 116 [2022-11-22 00:31:47,227 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:31:47,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:31:47,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:31:47,228 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:31:47,237 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:31:47" (1/1) ... [2022-11-22 00:31:47,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:31:47" (1/1) ... [2022-11-22 00:31:47,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:31:47" (1/1) ... [2022-11-22 00:31:47,241 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:31:47" (1/1) ... [2022-11-22 00:31:47,249 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:31:47" (1/1) ... [2022-11-22 00:31:47,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:31:47" (1/1) ... [2022-11-22 00:31:47,255 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:31:47" (1/1) ... [2022-11-22 00:31:47,256 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:31:47" (1/1) ... [2022-11-22 00:31:47,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:31:47,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:31:47,259 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:31:47,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:31:47,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:31:47" (1/1) ... [2022-11-22 00:31:47,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:31:47,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:31:47,293 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:31:47,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:31:47,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 00:31:47,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 00:31:47,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 00:31:47,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:31:47,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 00:31:47,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 00:31:47,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:31:47,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:31:47,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:31:47,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:31:47,443 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:31:47,446 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:31:47,727 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:31:47,876 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:31:47,877 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-22 00:31:47,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:31:47 BoogieIcfgContainer [2022-11-22 00:31:47,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:31:47,882 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:31:47,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:31:47,885 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:31:47,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:31:46" (1/3) ... [2022-11-22 00:31:47,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@537a4229 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:31:47, skipping insertion in model container [2022-11-22 00:31:47,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:31:47" (2/3) ... [2022-11-22 00:31:47,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@537a4229 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:31:47, skipping insertion in model container [2022-11-22 00:31:47,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:31:47" (3/3) ... [2022-11-22 00:31:47,888 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0504_1.i [2022-11-22 00:31:47,908 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:31:47,908 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-22 00:31:47,967 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:31:47,975 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;@1425e5c9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:31:47,976 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-22 00:31:47,983 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 28 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:47,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 00:31:47,990 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:31:47,990 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 00:31:47,991 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-22 00:31:47,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:31:47,996 INFO L85 PathProgramCache]: Analyzing trace with hash 4455034, now seen corresponding path program 1 times [2022-11-22 00:31:48,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:31:48,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106779619] [2022-11-22 00:31:48,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:31:48,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:31:48,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:31:48,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:31:48,155 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:31:48,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106779619] [2022-11-22 00:31:48,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106779619] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:31:48,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:31:48,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:31:48,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732571377] [2022-11-22 00:31:48,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:31:48,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 00:31:48,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:31:48,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 00:31:48,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 00:31:48,215 INFO L87 Difference]: Start difference. First operand has 29 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 28 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:48,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:31:48,313 INFO L93 Difference]: Finished difference Result 57 states and 67 transitions. [2022-11-22 00:31:48,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 00:31:48,316 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-22 00:31:48,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:31:48,323 INFO L225 Difference]: With dead ends: 57 [2022-11-22 00:31:48,323 INFO L226 Difference]: Without dead ends: 28 [2022-11-22 00:31:48,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 00:31:48,329 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:31:48,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:31:48,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-22 00:31:48,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-11-22 00:31:48,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 27 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:48,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2022-11-22 00:31:48,363 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 4 [2022-11-22 00:31:48,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:31:48,364 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2022-11-22 00:31:48,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:48,364 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2022-11-22 00:31:48,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 00:31:48,365 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:31:48,365 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 00:31:48,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:31:48,367 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-22 00:31:48,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:31:48,368 INFO L85 PathProgramCache]: Analyzing trace with hash 4501901, now seen corresponding path program 1 times [2022-11-22 00:31:48,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:31:48,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966377771] [2022-11-22 00:31:48,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:31:48,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:31:48,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:31:48,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:31:48,538 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:31:48,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966377771] [2022-11-22 00:31:48,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966377771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:31:48,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:31:48,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:31:48,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210296637] [2022-11-22 00:31:48,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:31:48,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:31:48,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:31:48,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:31:48,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:31:48,545 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:48,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:31:48,680 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2022-11-22 00:31:48,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:31:48,681 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-22 00:31:48,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:31:48,681 INFO L225 Difference]: With dead ends: 41 [2022-11-22 00:31:48,682 INFO L226 Difference]: Without dead ends: 32 [2022-11-22 00:31:48,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:31:48,686 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 4 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:31:48,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 52 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:31:48,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-22 00:31:48,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-11-22 00:31:48,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 31 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:48,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2022-11-22 00:31:48,695 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 4 [2022-11-22 00:31:48,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:31:48,695 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2022-11-22 00:31:48,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:48,696 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2022-11-22 00:31:48,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 00:31:48,696 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:31:48,696 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 00:31:48,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:31:48,697 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-22 00:31:48,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:31:48,698 INFO L85 PathProgramCache]: Analyzing trace with hash 31364772, now seen corresponding path program 1 times [2022-11-22 00:31:48,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:31:48,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385013315] [2022-11-22 00:31:48,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:31:48,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:31:48,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:31:48,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:31:48,830 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:31:48,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385013315] [2022-11-22 00:31:48,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385013315] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:31:48,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:31:48,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:31:48,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648602767] [2022-11-22 00:31:48,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:31:48,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:31:48,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:31:48,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:31:48,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:31:48,833 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:48,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:31:48,988 INFO L93 Difference]: Finished difference Result 57 states and 63 transitions. [2022-11-22 00:31:48,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 00:31:48,989 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-22 00:31:48,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:31:48,990 INFO L225 Difference]: With dead ends: 57 [2022-11-22 00:31:48,990 INFO L226 Difference]: Without dead ends: 56 [2022-11-22 00:31:48,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:31:48,992 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 28 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:31:48,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 48 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:31:48,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-22 00:31:48,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 33. [2022-11-22 00:31:48,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.565217391304348) internal successors, (36), 32 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:48,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2022-11-22 00:31:48,999 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 6 [2022-11-22 00:31:48,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:31:48,999 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2022-11-22 00:31:48,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:49,000 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2022-11-22 00:31:49,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 00:31:49,000 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:31:49,000 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:31:49,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 00:31:49,001 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-22 00:31:49,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:31:49,002 INFO L85 PathProgramCache]: Analyzing trace with hash 972307995, now seen corresponding path program 1 times [2022-11-22 00:31:49,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:31:49,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991758740] [2022-11-22 00:31:49,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:31:49,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:31:49,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:31:49,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:31:49,121 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:31:49,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991758740] [2022-11-22 00:31:49,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991758740] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:31:49,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:31:49,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:31:49,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971854584] [2022-11-22 00:31:49,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:31:49,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:31:49,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:31:49,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:31:49,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:31:49,124 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:49,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:31:49,352 INFO L93 Difference]: Finished difference Result 53 states and 58 transitions. [2022-11-22 00:31:49,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 00:31:49,354 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-22 00:31:49,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:31:49,355 INFO L225 Difference]: With dead ends: 53 [2022-11-22 00:31:49,355 INFO L226 Difference]: Without dead ends: 52 [2022-11-22 00:31:49,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:31:49,357 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 25 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:31:49,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 47 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 00:31:49,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-22 00:31:49,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 34. [2022-11-22 00:31:49,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 24 states have (on average 1.5416666666666667) internal successors, (37), 33 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:49,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2022-11-22 00:31:49,362 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 7 [2022-11-22 00:31:49,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:31:49,362 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2022-11-22 00:31:49,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:49,366 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2022-11-22 00:31:49,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 00:31:49,367 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:31:49,367 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:31:49,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 00:31:49,368 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-22 00:31:49,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:31:49,369 INFO L85 PathProgramCache]: Analyzing trace with hash 768193994, now seen corresponding path program 1 times [2022-11-22 00:31:49,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:31:49,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368909203] [2022-11-22 00:31:49,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:31:49,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:31:49,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:31:49,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:31:49,482 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:31:49,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368909203] [2022-11-22 00:31:49,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368909203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:31:49,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:31:49,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:31:49,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202824962] [2022-11-22 00:31:49,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:31:49,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:31:49,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:31:49,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:31:49,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:31:49,484 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:49,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:31:49,566 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2022-11-22 00:31:49,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:31:49,568 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-22 00:31:49,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:31:49,568 INFO L225 Difference]: With dead ends: 41 [2022-11-22 00:31:49,569 INFO L226 Difference]: Without dead ends: 39 [2022-11-22 00:31:49,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:31:49,570 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 16 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:31:49,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 44 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:31:49,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-22 00:31:49,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2022-11-22 00:31:49,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 28 states have (on average 1.5) internal successors, (42), 37 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:49,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2022-11-22 00:31:49,576 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 10 [2022-11-22 00:31:49,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:31:49,576 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2022-11-22 00:31:49,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:49,576 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2022-11-22 00:31:49,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-22 00:31:49,577 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:31:49,577 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:31:49,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 00:31:49,577 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-22 00:31:49,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:31:49,578 INFO L85 PathProgramCache]: Analyzing trace with hash -499941843, now seen corresponding path program 1 times [2022-11-22 00:31:49,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:31:49,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228641947] [2022-11-22 00:31:49,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:31:49,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:31:49,629 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 00:31:49,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1161815917] [2022-11-22 00:31:49,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:31:49,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:31:49,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:31:49,645 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:31:49,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 00:31:49,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:31:49,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-22 00:31:49,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:31:49,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:31:49,972 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 00:31:49,972 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:31:49,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228641947] [2022-11-22 00:31:49,972 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 00:31:49,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161815917] [2022-11-22 00:31:49,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161815917] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:31:49,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:31:49,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:31:49,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874626146] [2022-11-22 00:31:49,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:31:49,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 00:31:49,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:31:49,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 00:31:49,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-22 00:31:49,995 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:50,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:31:50,305 INFO L93 Difference]: Finished difference Result 65 states and 72 transitions. [2022-11-22 00:31:50,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 00:31:50,307 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-22 00:31:50,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:31:50,308 INFO L225 Difference]: With dead ends: 65 [2022-11-22 00:31:50,308 INFO L226 Difference]: Without dead ends: 63 [2022-11-22 00:31:50,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-22 00:31:50,309 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 23 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:31:50,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 70 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 00:31:50,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-22 00:31:50,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 44. [2022-11-22 00:31:50,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 43 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:50,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2022-11-22 00:31:50,315 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 12 [2022-11-22 00:31:50,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:31:50,316 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2022-11-22 00:31:50,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:50,316 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2022-11-22 00:31:50,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-22 00:31:50,316 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:31:50,317 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:31:50,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-22 00:31:50,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:31:50,523 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-22 00:31:50,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:31:50,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1682151237, now seen corresponding path program 1 times [2022-11-22 00:31:50,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:31:50,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164330958] [2022-11-22 00:31:50,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:31:50,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:31:50,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:31:50,644 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:31:50,644 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:31:50,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164330958] [2022-11-22 00:31:50,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164330958] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:31:50,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:31:50,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:31:50,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578048374] [2022-11-22 00:31:50,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:31:50,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:31:50,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:31:50,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:31:50,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:31:50,647 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:50,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:31:50,726 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2022-11-22 00:31:50,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:31:50,727 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-22 00:31:50,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:31:50,728 INFO L225 Difference]: With dead ends: 49 [2022-11-22 00:31:50,728 INFO L226 Difference]: Without dead ends: 48 [2022-11-22 00:31:50,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:31:50,729 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 20 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:31:50,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 27 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:31:50,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-22 00:31:50,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 43. [2022-11-22 00:31:50,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 34 states have (on average 1.411764705882353) internal successors, (48), 42 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:50,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2022-11-22 00:31:50,734 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 13 [2022-11-22 00:31:50,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:31:50,734 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2022-11-22 00:31:50,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:50,741 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2022-11-22 00:31:50,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-22 00:31:50,742 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:31:50,742 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:31:50,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 00:31:50,743 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-22 00:31:50,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:31:50,744 INFO L85 PathProgramCache]: Analyzing trace with hash 607081005, now seen corresponding path program 1 times [2022-11-22 00:31:50,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:31:50,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143406444] [2022-11-22 00:31:50,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:31:50,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:31:50,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:31:50,875 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:31:50,876 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:31:50,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143406444] [2022-11-22 00:31:50,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143406444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:31:50,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:31:50,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:31:50,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872054926] [2022-11-22 00:31:50,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:31:50,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:31:50,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:31:50,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:31:50,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:31:50,881 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:50,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:31:50,974 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2022-11-22 00:31:50,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:31:50,975 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-22 00:31:50,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:31:50,976 INFO L225 Difference]: With dead ends: 43 [2022-11-22 00:31:50,976 INFO L226 Difference]: Without dead ends: 42 [2022-11-22 00:31:50,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:31:50,977 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 20 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:31:50,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 20 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:31:50,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-22 00:31:50,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-11-22 00:31:50,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 41 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:50,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2022-11-22 00:31:50,982 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 14 [2022-11-22 00:31:50,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:31:50,982 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2022-11-22 00:31:50,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:50,982 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2022-11-22 00:31:50,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-22 00:31:50,983 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:31:50,983 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:31:50,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 00:31:50,983 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-22 00:31:50,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:31:50,984 INFO L85 PathProgramCache]: Analyzing trace with hash 607080847, now seen corresponding path program 1 times [2022-11-22 00:31:50,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:31:50,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43891873] [2022-11-22 00:31:50,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:31:50,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:31:51,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:31:51,080 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:31:51,080 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:31:51,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43891873] [2022-11-22 00:31:51,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43891873] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:31:51,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:31:51,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:31:51,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266663762] [2022-11-22 00:31:51,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:31:51,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:31:51,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:31:51,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:31:51,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:31:51,083 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:51,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:31:51,165 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2022-11-22 00:31:51,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:31:51,165 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-22 00:31:51,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:31:51,166 INFO L225 Difference]: With dead ends: 43 [2022-11-22 00:31:51,166 INFO L226 Difference]: Without dead ends: 41 [2022-11-22 00:31:51,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:31:51,167 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 17 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:31:51,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 18 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:31:51,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-22 00:31:51,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2022-11-22 00:31:51,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 39 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:51,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2022-11-22 00:31:51,178 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 45 transitions. Word has length 14 [2022-11-22 00:31:51,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:31:51,178 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 45 transitions. [2022-11-22 00:31:51,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:51,178 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2022-11-22 00:31:51,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-22 00:31:51,179 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:31:51,179 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:31:51,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 00:31:51,179 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-22 00:31:51,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:31:51,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1639642090, now seen corresponding path program 1 times [2022-11-22 00:31:51,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:31:51,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886812705] [2022-11-22 00:31:51,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:31:51,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:31:51,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:31:51,282 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 00:31:51,283 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:31:51,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886812705] [2022-11-22 00:31:51,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886812705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:31:51,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:31:51,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:31:51,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980923356] [2022-11-22 00:31:51,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:31:51,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:31:51,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:31:51,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:31:51,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:31:51,286 INFO L87 Difference]: Start difference. First operand 40 states and 45 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:51,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:31:51,332 INFO L93 Difference]: Finished difference Result 40 states and 45 transitions. [2022-11-22 00:31:51,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:31:51,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-22 00:31:51,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:31:51,333 INFO L225 Difference]: With dead ends: 40 [2022-11-22 00:31:51,333 INFO L226 Difference]: Without dead ends: 35 [2022-11-22 00:31:51,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:31:51,334 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:31:51,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:31:51,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-22 00:31:51,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-22 00:31:51,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 34 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:51,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2022-11-22 00:31:51,339 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 15 [2022-11-22 00:31:51,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:31:51,340 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2022-11-22 00:31:51,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:31:51,340 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2022-11-22 00:31:51,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-22 00:31:51,341 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:31:51,341 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:31:51,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 00:31:51,341 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-22 00:31:51,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:31:51,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1639640668, now seen corresponding path program 1 times [2022-11-22 00:31:51,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:31:51,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116595142] [2022-11-22 00:31:51,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:31:51,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:31:51,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:31:51,514 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:31:51,514 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:31:51,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116595142] [2022-11-22 00:31:51,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116595142] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:31:51,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253505948] [2022-11-22 00:31:51,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:31:51,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:31:51,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:31:51,516 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:31:51,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 00:31:51,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:31:51,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 00:31:51,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:31:51,722 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:31:51,722 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:31:51,819 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:31:51,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253505948] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:31:51,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [286858933] [2022-11-22 00:31:51,838 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-22 00:31:51,838 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:31:51,842 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:31:51,846 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:31:51,846 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:31:52,016 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-22 00:31:52,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-22 00:31:52,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2022-11-22 00:31:52,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,096 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 00:31:52,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 11 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 50 [2022-11-22 00:31:52,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2022-11-22 00:31:52,156 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 00:31:52,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-22 00:31:52,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-22 00:31:52,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2022-11-22 00:31:52,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2022-11-22 00:31:52,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,810 INFO L321 Elim1Store]: treesize reduction 55, result has 25.7 percent of original size [2022-11-22 00:31:52,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 290 treesize of output 282 [2022-11-22 00:31:52,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:52,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:54,092 INFO L321 Elim1Store]: treesize reduction 508, result has 25.6 percent of original size [2022-11-22 00:31:54,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 291 treesize of output 451 [2022-11-22 00:31:54,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:54,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:54,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:31:54,831 INFO L321 Elim1Store]: treesize reduction 508, result has 25.6 percent of original size [2022-11-22 00:31:54,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 269 treesize of output 429 [2022-11-22 00:31:55,023 INFO L321 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-11-22 00:31:55,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 232 treesize of output 255 [2022-11-22 00:31:55,138 INFO L321 Elim1Store]: treesize reduction 55, result has 25.7 percent of original size [2022-11-22 00:31:55,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 257 treesize of output 249 [2022-11-22 00:31:55,212 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-22 00:31:55,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 225 treesize of output 233 [2022-11-22 00:31:55,304 INFO L321 Elim1Store]: treesize reduction 53, result has 26.4 percent of original size [2022-11-22 00:31:55,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 251 treesize of output 247 [2022-11-22 00:31:55,401 INFO L321 Elim1Store]: treesize reduction 55, result has 25.7 percent of original size [2022-11-22 00:31:55,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 255 treesize of output 247 [2022-11-22 00:32:58,582 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:32:58,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:58,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:58,605 INFO L321 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2022-11-22 00:32:58,605 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 271 treesize of output 268 [2022-11-22 00:32:58,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:58,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:58,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:58,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:58,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:58,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:58,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:58,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:58,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:58,636 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:32:58,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:58,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:58,640 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:32:58,641 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:32:58,641 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:32:58,650 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-11-22 00:32:58,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 13 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 22 case distinctions, treesize of input 309 treesize of output 314 [2022-11-22 00:32:58,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:58,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:58,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:58,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:58,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:58,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:58,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:58,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:58,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:58,687 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:32:58,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:58,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:58,690 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:32:58,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:58,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:58,693 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:32:58,694 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:32:58,702 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-11-22 00:32:58,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 13 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 22 case distinctions, treesize of input 309 treesize of output 314 [2022-11-22 00:32:59,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 19 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 87 [2022-11-22 00:32:59,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 19 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 87 [2022-11-22 00:32:59,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 56 [2022-11-22 00:32:59,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2022-11-22 00:32:59,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2022-11-22 00:32:59,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 00:32:59,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2022-11-22 00:32:59,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:32:59,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 00:32:59,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2022-11-22 00:32:59,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2022-11-22 00:32:59,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,782 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 24 [2022-11-22 00:32:59,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,830 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 24 [2022-11-22 00:32:59,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,864 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:32:59,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,867 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:32:59,884 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-22 00:32:59,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 56 [2022-11-22 00:32:59,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,924 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:32:59,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:32:59,931 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:32:59,960 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-22 00:32:59,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 56 [2022-11-22 00:33:00,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,042 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:00,064 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-22 00:33:00,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 66 [2022-11-22 00:33:00,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,108 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:00,119 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-22 00:33:00,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 1 [2022-11-22 00:33:00,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2022-11-22 00:33:00,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:33:00,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 00:33:00,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2022-11-22 00:33:00,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2022-11-22 00:33:00,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 00:33:00,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2022-11-22 00:33:00,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,393 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2022-11-22 00:33:00,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,562 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:00,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,569 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:00,592 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-22 00:33:00,592 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 56 [2022-11-22 00:33:00,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,646 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:00,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,668 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:00,714 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-22 00:33:00,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 56 [2022-11-22 00:33:00,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,799 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:00,820 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-22 00:33:00,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 66 [2022-11-22 00:33:00,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,870 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:00,903 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-22 00:33:00,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 66 [2022-11-22 00:33:00,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 36 [2022-11-22 00:33:00,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:00,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 36 [2022-11-22 00:33:01,058 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:33:02,315 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1218#(and (<= |ULTIMATE.start_main_~last~0#1.offset| 0) (= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~x~0#1.base|) (+ 16 |ULTIMATE.start_main_~x~0#1.offset|))) (<= 0 |ULTIMATE.start_main_~first~0#1.offset|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~x~0#1.base|) |ULTIMATE.start_main_~x~0#1.offset|) |ULTIMATE.start_main_~x~0#1.offset|) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~x~0#1.base|) (+ 16 |ULTIMATE.start_main_~x~0#1.offset|)) 0) (= |ULTIMATE.start_main_~x~0#1.offset| 0) (not (<= (* |ULTIMATE.start_main_~c1~0#1| 2) 2147483647)) (= 20 (select |#length| |ULTIMATE.start_main_~x~0#1.base|)) (<= |ULTIMATE.start_main_~c1~0#1| 2147483647) (= |ULTIMATE.start_main_~x~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~x~0#1.base|) (+ |ULTIMATE.start_main_~x~0#1.offset| 4))) (<= 0 |ULTIMATE.start_main_~last~0#1.offset|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~x~0#1.base|) (+ 12 |ULTIMATE.start_main_~x~0#1.offset|)) 0) (= (select |#valid| |ULTIMATE.start_main_~x~0#1.base|) 1) (< |ULTIMATE.start_main_~x~0#1.base| |#StackHeapBarrier|) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~x~0#1.base|) (+ |ULTIMATE.start_main_~x~0#1.offset| 4)) |ULTIMATE.start_main_~x~0#1.base|) (= |#NULL.offset| 0) (not (= |ULTIMATE.start_main_~x~0#1.base| 0)) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~x~0#1.base|) (+ 12 |ULTIMATE.start_main_~x~0#1.offset|)) 0) (= |ULTIMATE.start_main_~c2~0#1| 0) (= |ULTIMATE.start_main_~x~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~x~0#1.base|) |ULTIMATE.start_main_~x~0#1.offset|)) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~first~0#1.offset| 0) (= |#NULL.base| 0))' at error location [2022-11-22 00:33:02,315 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:33:02,315 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:33:02,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2022-11-22 00:33:02,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938482000] [2022-11-22 00:33:02,316 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:33:02,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-22 00:33:02,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:33:02,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-22 00:33:02,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=415, Unknown=0, NotChecked=0, Total=506 [2022-11-22 00:33:02,317 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 14 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 13 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:33:02,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:33:02,635 INFO L93 Difference]: Finished difference Result 94 states and 104 transitions. [2022-11-22 00:33:02,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-22 00:33:02,635 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 13 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-22 00:33:02,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:33:02,636 INFO L225 Difference]: With dead ends: 94 [2022-11-22 00:33:02,636 INFO L226 Difference]: Without dead ends: 93 [2022-11-22 00:33:02,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=134, Invalid=568, Unknown=0, NotChecked=0, Total=702 [2022-11-22 00:33:02,637 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 119 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:33:02,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 50 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 00:33:02,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-11-22 00:33:02,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 81. [2022-11-22 00:33:02,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 76 states have (on average 1.3289473684210527) internal successors, (101), 80 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:33:02,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 101 transitions. [2022-11-22 00:33:02,646 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 101 transitions. Word has length 15 [2022-11-22 00:33:02,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:33:02,646 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 101 transitions. [2022-11-22 00:33:02,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 13 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:33:02,646 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 101 transitions. [2022-11-22 00:33:02,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-22 00:33:02,647 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:33:02,647 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:33:02,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 00:33:02,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-22 00:33:02,853 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-22 00:33:02,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:33:02,853 INFO L85 PathProgramCache]: Analyzing trace with hash -2098476972, now seen corresponding path program 1 times [2022-11-22 00:33:02,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:33:02,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724751787] [2022-11-22 00:33:02,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:33:02,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:33:02,885 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 00:33:02,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1065211511] [2022-11-22 00:33:02,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:33:02,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:33:02,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:33:02,887 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:33:02,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 00:33:03,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:33:03,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 00:33:03,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:33:03,068 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:33:03,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:33:03,119 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:33:03,120 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:33:03,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724751787] [2022-11-22 00:33:03,120 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 00:33:03,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065211511] [2022-11-22 00:33:03,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1065211511] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:33:03,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [428308673] [2022-11-22 00:33:03,123 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-22 00:33:03,123 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:33:03,123 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:33:03,124 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:33:03,124 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:33:03,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2022-11-22 00:33:03,204 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-22 00:33:03,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-22 00:33:03,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2022-11-22 00:33:03,258 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 00:33:03,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-22 00:33:03,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 46 [2022-11-22 00:33:03,321 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-22 00:33:03,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2022-11-22 00:33:03,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2022-11-22 00:33:03,493 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-22 00:33:03,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-22 00:33:03,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-22 00:33:03,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,602 INFO L321 Elim1Store]: treesize reduction 91, result has 22.2 percent of original size [2022-11-22 00:33:03,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 14 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 284 treesize of output 198 [2022-11-22 00:33:03,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,626 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:03,627 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:03,645 INFO L321 Elim1Store]: treesize reduction 50, result has 20.6 percent of original size [2022-11-22 00:33:03,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 196 treesize of output 110 [2022-11-22 00:33:03,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 59 [2022-11-22 00:33:03,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 44 [2022-11-22 00:33:03,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,805 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:03,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,812 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 00:33:03,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 5 case distinctions, treesize of input 105 treesize of output 94 [2022-11-22 00:33:03,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,849 INFO L321 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2022-11-22 00:33:03,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 3 case distinctions, treesize of input 121 treesize of output 91 [2022-11-22 00:33:03,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:03,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 75 [2022-11-22 00:33:04,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:04,251 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:04,299 INFO L321 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2022-11-22 00:33:04,299 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 534 treesize of output 517 [2022-11-22 00:33:04,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:04,328 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:04,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:04,330 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:04,331 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:04,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:04,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:04,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:04,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:04,588 INFO L321 Elim1Store]: treesize reduction 373, result has 16.6 percent of original size [2022-11-22 00:33:04,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 23 case distinctions, treesize of input 768 treesize of output 620 [2022-11-22 00:33:04,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:04,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:04,675 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:04,778 INFO L321 Elim1Store]: treesize reduction 230, result has 13.2 percent of original size [2022-11-22 00:33:04,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 538 treesize of output 497 [2022-11-22 00:33:04,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:04,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:04,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:04,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:04,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:04,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:04,827 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:04,835 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-22 00:33:04,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 518 treesize of output 497 [2022-11-22 00:33:05,006 INFO L321 Elim1Store]: treesize reduction 164, result has 18.4 percent of original size [2022-11-22 00:33:05,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 510 treesize of output 526 [2022-11-22 00:33:05,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:05,040 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:05,041 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:05,042 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:05,146 INFO L321 Elim1Store]: treesize reduction 354, result has 15.9 percent of original size [2022-11-22 00:33:05,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 621 treesize of output 532 [2022-11-22 00:33:05,206 INFO L321 Elim1Store]: treesize reduction 79, result has 10.2 percent of original size [2022-11-22 00:33:05,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 503 treesize of output 508 [2022-11-22 00:33:05,921 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:05,922 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:05,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:05,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:05,928 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:05,969 INFO L321 Elim1Store]: treesize reduction 90, result has 17.4 percent of original size [2022-11-22 00:33:05,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 1061 treesize of output 939 [2022-11-22 00:33:06,004 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:06,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:06,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:06,179 INFO L321 Elim1Store]: treesize reduction 608, result has 10.2 percent of original size [2022-11-22 00:33:06,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 13 new quantified variables, introduced 36 case distinctions, treesize of input 1501 treesize of output 1082 [2022-11-22 00:33:06,215 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:06,343 INFO L321 Elim1Store]: treesize reduction 362, result has 11.5 percent of original size [2022-11-22 00:33:06,344 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 12 new quantified variables, introduced 32 case distinctions, treesize of input 1412 treesize of output 1045 [2022-11-22 00:33:06,392 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:06,472 INFO L321 Elim1Store]: treesize reduction 406, result has 11.5 percent of original size [2022-11-22 00:33:06,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 12 new quantified variables, introduced 18 case distinctions, treesize of input 1301 treesize of output 1083 [2022-11-22 00:33:06,527 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:06,571 INFO L321 Elim1Store]: treesize reduction 266, result has 10.4 percent of original size [2022-11-22 00:33:06,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 11 disjoint index pairs (out of 28 index pairs), introduced 9 new quantified variables, introduced 15 case distinctions, treesize of input 1093 treesize of output 1007 [2022-11-22 00:33:07,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:07,541 INFO L321 Elim1Store]: treesize reduction 106, result has 32.1 percent of original size [2022-11-22 00:33:07,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 250 treesize of output 192 [2022-11-22 00:33:07,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:07,627 INFO L321 Elim1Store]: treesize reduction 88, result has 32.3 percent of original size [2022-11-22 00:33:07,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 184 treesize of output 116 [2022-11-22 00:33:07,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:07,701 INFO L321 Elim1Store]: treesize reduction 54, result has 46.5 percent of original size [2022-11-22 00:33:07,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 87 treesize of output 47 [2022-11-22 00:33:07,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:33:07,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 00:33:07,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:07,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 9 [2022-11-22 00:33:07,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:07,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:07,923 INFO L321 Elim1Store]: treesize reduction 172, result has 28.9 percent of original size [2022-11-22 00:33:07,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 211 treesize of output 203 [2022-11-22 00:33:07,988 INFO L321 Elim1Store]: treesize reduction 113, result has 14.4 percent of original size [2022-11-22 00:33:07,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 236 treesize of output 179 [2022-11-22 00:33:08,094 INFO L321 Elim1Store]: treesize reduction 108, result has 39.3 percent of original size [2022-11-22 00:33:08,094 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 243 treesize of output 226 [2022-11-22 00:33:09,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 00:33:09,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:09,698 INFO L321 Elim1Store]: treesize reduction 112, result has 32.5 percent of original size [2022-11-22 00:33:09,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 250 treesize of output 182 [2022-11-22 00:33:09,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:09,795 INFO L321 Elim1Store]: treesize reduction 66, result has 47.2 percent of original size [2022-11-22 00:33:09,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 95 treesize of output 59 [2022-11-22 00:33:09,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:09,861 INFO L321 Elim1Store]: treesize reduction 106, result has 32.1 percent of original size [2022-11-22 00:33:09,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 226 treesize of output 160 [2022-11-22 00:33:09,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:33:09,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:09,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 9 [2022-11-22 00:33:10,006 INFO L321 Elim1Store]: treesize reduction 117, result has 16.4 percent of original size [2022-11-22 00:33:10,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 180 treesize of output 171 [2022-11-22 00:33:10,114 INFO L321 Elim1Store]: treesize reduction 128, result has 35.4 percent of original size [2022-11-22 00:33:10,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 195 treesize of output 214 [2022-11-22 00:33:10,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:10,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:10,185 INFO L321 Elim1Store]: treesize reduction 89, result has 14.4 percent of original size [2022-11-22 00:33:10,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 198 treesize of output 157 [2022-11-22 00:33:10,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:10,264 INFO L321 Elim1Store]: treesize reduction 108, result has 26.0 percent of original size [2022-11-22 00:33:10,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 209 treesize of output 176 [2022-11-22 00:33:10,948 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:33:11,675 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1536#(and (= |ULTIMATE.start_main_~last~0#1.offset| 0) (= |ULTIMATE.start_main_~y~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~c2~0#1|) (= |ULTIMATE.start_main_~first~0#1.base| 0) (= |ULTIMATE.start_main_~x~0#1.offset| 0) (= |ULTIMATE.start_main_~c1~0#1| 1) (= |ULTIMATE.start_main_~last~0#1.base| 0) (= |ULTIMATE.start_main_~first~0#1.offset| 0) (= |#NULL.offset| 0) (< 2147483646 |ULTIMATE.start_main_#t~post9#1|) (= |ULTIMATE.start_main_~y~0#1.base| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 00:33:11,675 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:33:11,675 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 00:33:11,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2022-11-22 00:33:11,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349823957] [2022-11-22 00:33:11,676 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 00:33:11,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-22 00:33:11,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:33:11,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-22 00:33:11,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2022-11-22 00:33:11,677 INFO L87 Difference]: Start difference. First operand 81 states and 101 transitions. Second operand has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:33:11,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:33:11,896 INFO L93 Difference]: Finished difference Result 177 states and 245 transitions. [2022-11-22 00:33:11,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 00:33:11,896 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-22 00:33:11,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:33:11,899 INFO L225 Difference]: With dead ends: 177 [2022-11-22 00:33:11,899 INFO L226 Difference]: Without dead ends: 176 [2022-11-22 00:33:11,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 26 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=138, Invalid=512, Unknown=0, NotChecked=0, Total=650 [2022-11-22 00:33:11,900 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 47 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:33:11,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 21 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:33:11,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-11-22 00:33:11,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 147. [2022-11-22 00:33:11,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 142 states have (on average 1.471830985915493) internal successors, (209), 146 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:33:11,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 209 transitions. [2022-11-22 00:33:11,927 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 209 transitions. Word has length 16 [2022-11-22 00:33:11,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:33:11,927 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 209 transitions. [2022-11-22 00:33:11,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:33:11,927 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 209 transitions. [2022-11-22 00:33:11,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-22 00:33:11,928 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:33:11,928 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:33:11,933 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-22 00:33:12,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-22 00:33:12,131 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-22 00:33:12,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:33:12,132 INFO L85 PathProgramCache]: Analyzing trace with hash -628276609, now seen corresponding path program 1 times [2022-11-22 00:33:12,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:33:12,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278023266] [2022-11-22 00:33:12,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:33:12,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:33:12,157 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 00:33:12,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1329314901] [2022-11-22 00:33:12,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:33:12,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:33:12,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:33:12,158 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:33:12,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 00:33:12,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:33:12,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 00:33:12,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:33:12,346 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:33:12,346 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 00:33:12,347 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:33:12,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278023266] [2022-11-22 00:33:12,347 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 00:33:12,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329314901] [2022-11-22 00:33:12,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1329314901] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:33:12,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:33:12,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 00:33:12,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074531729] [2022-11-22 00:33:12,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:33:12,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 00:33:12,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:33:12,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 00:33:12,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:33:12,349 INFO L87 Difference]: Start difference. First operand 147 states and 209 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:33:12,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:33:12,450 INFO L93 Difference]: Finished difference Result 151 states and 213 transitions. [2022-11-22 00:33:12,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:33:12,450 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-22 00:33:12,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:33:12,451 INFO L225 Difference]: With dead ends: 151 [2022-11-22 00:33:12,451 INFO L226 Difference]: Without dead ends: 150 [2022-11-22 00:33:12,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 00:33:12,452 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 17 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:33:12,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 20 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:33:12,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-22 00:33:12,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 146. [2022-11-22 00:33:12,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 142 states have (on average 1.3873239436619718) internal successors, (197), 145 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:33:12,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 197 transitions. [2022-11-22 00:33:12,462 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 197 transitions. Word has length 17 [2022-11-22 00:33:12,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:33:12,463 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 197 transitions. [2022-11-22 00:33:12,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:33:12,463 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 197 transitions. [2022-11-22 00:33:12,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-22 00:33:12,464 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:33:12,464 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:33:12,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 00:33:12,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:33:12,670 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-22 00:33:12,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:33:12,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1998263863, now seen corresponding path program 1 times [2022-11-22 00:33:12,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:33:12,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167421119] [2022-11-22 00:33:12,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:33:12,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:33:12,703 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 00:33:12,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2092625301] [2022-11-22 00:33:12,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:33:12,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:33:12,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:33:12,704 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:33:12,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 00:33:12,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:33:12,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-22 00:33:12,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:33:12,987 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:33:12,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:33:13,377 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:33:13,378 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:33:13,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167421119] [2022-11-22 00:33:13,378 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 00:33:13,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2092625301] [2022-11-22 00:33:13,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2092625301] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:33:13,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [720197984] [2022-11-22 00:33:13,380 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-22 00:33:13,381 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:33:13,381 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:33:13,381 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:33:13,381 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:33:13,460 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 00:33:13,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-22 00:33:13,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 00:33:13,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:13,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:13,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:13,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2022-11-22 00:33:13,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:13,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:13,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:13,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 46 [2022-11-22 00:33:13,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:13,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:13,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:13,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2022-11-22 00:33:13,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:13,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:13,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:13,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:13,555 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2022-11-22 00:33:13,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:13,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:13,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:13,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:13,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2022-11-22 00:33:13,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-22 00:33:13,719 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-22 00:33:13,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-22 00:33:13,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-22 00:33:13,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:13,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:13,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:13,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:13,837 INFO L321 Elim1Store]: treesize reduction 91, result has 22.2 percent of original size [2022-11-22 00:33:13,837 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 14 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 284 treesize of output 198 [2022-11-22 00:33:13,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:13,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:13,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:13,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:13,861 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:13,862 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:13,882 INFO L321 Elim1Store]: treesize reduction 54, result has 14.3 percent of original size [2022-11-22 00:33:13,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 196 treesize of output 106 [2022-11-22 00:33:13,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:13,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:13,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 55 [2022-11-22 00:33:13,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:13,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:13,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:13,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:13,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:13,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:13,992 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:14,001 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-22 00:33:14,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 327 treesize of output 206 [2022-11-22 00:33:14,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:14,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:14,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:14,023 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:14,053 INFO L321 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2022-11-22 00:33:14,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 294 treesize of output 184 [2022-11-22 00:33:14,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:14,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 48 [2022-11-22 00:33:14,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:14,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:14,106 INFO L321 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2022-11-22 00:33:14,106 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 3 case distinctions, treesize of input 100 treesize of output 78 [2022-11-22 00:33:14,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:14,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:14,134 INFO L321 Elim1Store]: treesize reduction 45, result has 13.5 percent of original size [2022-11-22 00:33:14,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 4 case distinctions, treesize of input 84 treesize of output 78 [2022-11-22 00:33:14,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:14,403 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:14,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:14,405 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:14,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:14,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:14,408 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:14,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:14,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:14,853 INFO L321 Elim1Store]: treesize reduction 373, result has 16.6 percent of original size [2022-11-22 00:33:14,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 23 case distinctions, treesize of input 776 treesize of output 624 [2022-11-22 00:33:14,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:14,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:14,952 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:14,993 INFO L321 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2022-11-22 00:33:14,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 522 treesize of output 505 [2022-11-22 00:33:15,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:15,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:15,066 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:15,161 INFO L321 Elim1Store]: treesize reduction 230, result has 13.2 percent of original size [2022-11-22 00:33:15,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 546 treesize of output 505 [2022-11-22 00:33:15,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:15,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:15,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:15,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:15,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:15,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:15,221 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:15,228 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-22 00:33:15,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 526 treesize of output 505 [2022-11-22 00:33:15,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:15,259 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:15,261 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:15,262 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:15,433 INFO L321 Elim1Store]: treesize reduction 585, result has 10.7 percent of original size [2022-11-22 00:33:15,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 23 case distinctions, treesize of input 629 treesize of output 540 [2022-11-22 00:33:15,571 INFO L321 Elim1Store]: treesize reduction 160, result has 20.4 percent of original size [2022-11-22 00:33:15,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 508 treesize of output 528 [2022-11-22 00:33:15,628 INFO L321 Elim1Store]: treesize reduction 67, result has 6.9 percent of original size [2022-11-22 00:33:15,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 503 treesize of output 508 [2022-11-22 00:33:16,228 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:16,229 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:16,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:16,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:16,234 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:16,282 INFO L321 Elim1Store]: treesize reduction 80, result has 17.5 percent of original size [2022-11-22 00:33:16,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 1061 treesize of output 939 [2022-11-22 00:33:16,315 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:16,539 INFO L321 Elim1Store]: treesize reduction 608, result has 10.2 percent of original size [2022-11-22 00:33:16,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 13 new quantified variables, introduced 36 case distinctions, treesize of input 1505 treesize of output 1082 [2022-11-22 00:33:16,565 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:16,706 INFO L321 Elim1Store]: treesize reduction 362, result has 11.5 percent of original size [2022-11-22 00:33:16,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 12 new quantified variables, introduced 32 case distinctions, treesize of input 1416 treesize of output 1045 [2022-11-22 00:33:16,748 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:16,874 INFO L321 Elim1Store]: treesize reduction 504, result has 10.2 percent of original size [2022-11-22 00:33:16,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 12 new quantified variables, introduced 24 case distinctions, treesize of input 1301 treesize of output 1083 [2022-11-22 00:33:16,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:16,921 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:16,963 INFO L321 Elim1Store]: treesize reduction 198, result has 13.5 percent of original size [2022-11-22 00:33:16,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 12 disjoint index pairs (out of 28 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1093 treesize of output 1007 [2022-11-22 00:33:17,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 00:33:17,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:17,905 INFO L321 Elim1Store]: treesize reduction 106, result has 32.1 percent of original size [2022-11-22 00:33:17,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 250 treesize of output 192 [2022-11-22 00:33:17,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:17,999 INFO L321 Elim1Store]: treesize reduction 88, result has 32.3 percent of original size [2022-11-22 00:33:18,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 184 treesize of output 116 [2022-11-22 00:33:18,042 INFO L321 Elim1Store]: treesize reduction 33, result has 38.9 percent of original size [2022-11-22 00:33:18,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 21 [2022-11-22 00:33:18,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:18,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 25 [2022-11-22 00:33:18,077 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:33:18,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 9 [2022-11-22 00:33:18,236 INFO L321 Elim1Store]: treesize reduction 172, result has 28.9 percent of original size [2022-11-22 00:33:18,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 211 treesize of output 203 [2022-11-22 00:33:18,301 INFO L321 Elim1Store]: treesize reduction 113, result has 14.4 percent of original size [2022-11-22 00:33:18,301 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 236 treesize of output 179 [2022-11-22 00:33:18,417 INFO L321 Elim1Store]: treesize reduction 112, result has 37.1 percent of original size [2022-11-22 00:33:18,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 243 treesize of output 222 [2022-11-22 00:33:19,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:20,002 INFO L321 Elim1Store]: treesize reduction 106, result has 32.1 percent of original size [2022-11-22 00:33:20,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 250 treesize of output 192 [2022-11-22 00:33:20,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:20,091 INFO L321 Elim1Store]: treesize reduction 88, result has 32.3 percent of original size [2022-11-22 00:33:20,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 184 treesize of output 116 [2022-11-22 00:33:20,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:20,158 INFO L321 Elim1Store]: treesize reduction 54, result has 46.5 percent of original size [2022-11-22 00:33:20,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 87 treesize of output 47 [2022-11-22 00:33:20,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:33:20,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 00:33:20,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 9 [2022-11-22 00:33:20,373 INFO L321 Elim1Store]: treesize reduction 186, result has 23.1 percent of original size [2022-11-22 00:33:20,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 223 treesize of output 197 [2022-11-22 00:33:20,434 INFO L321 Elim1Store]: treesize reduction 113, result has 14.4 percent of original size [2022-11-22 00:33:20,435 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 222 treesize of output 185 [2022-11-22 00:33:20,534 INFO L321 Elim1Store]: treesize reduction 111, result has 37.6 percent of original size [2022-11-22 00:33:20,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 225 treesize of output 229 [2022-11-22 00:33:21,342 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:33:22,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [720197984] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:33:22,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-22 00:33:22,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7, 7] total 22 [2022-11-22 00:33:22,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522123793] [2022-11-22 00:33:22,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:33:22,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-22 00:33:22,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:33:22,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-22 00:33:22,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-22 00:33:22,202 INFO L87 Difference]: Start difference. First operand 146 states and 197 transitions. Second operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:33:23,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:33:23,002 INFO L93 Difference]: Finished difference Result 150 states and 198 transitions. [2022-11-22 00:33:23,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 00:33:23,002 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-22 00:33:23,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:33:23,003 INFO L225 Difference]: With dead ends: 150 [2022-11-22 00:33:23,004 INFO L226 Difference]: Without dead ends: 148 [2022-11-22 00:33:23,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 26 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=153, Invalid=603, Unknown=0, NotChecked=0, Total=756 [2022-11-22 00:33:23,005 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 17 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:33:23,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 13 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 00:33:23,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2022-11-22 00:33:23,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 146. [2022-11-22 00:33:23,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 142 states have (on average 1.3450704225352113) internal successors, (191), 145 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:33:23,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 191 transitions. [2022-11-22 00:33:23,016 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 191 transitions. Word has length 18 [2022-11-22 00:33:23,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:33:23,017 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 191 transitions. [2022-11-22 00:33:23,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:33:23,017 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 191 transitions. [2022-11-22 00:33:23,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-22 00:33:23,018 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:33:23,018 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:33:23,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-22 00:33:23,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:33:23,224 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-22 00:33:23,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:33:23,225 INFO L85 PathProgramCache]: Analyzing trace with hash 816655333, now seen corresponding path program 1 times [2022-11-22 00:33:23,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:33:23,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413475974] [2022-11-22 00:33:23,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:33:23,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:33:23,266 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 00:33:23,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1173901210] [2022-11-22 00:33:23,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:33:23,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:33:23,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:33:23,268 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:33:23,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-22 00:33:23,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:33:23,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-22 00:33:23,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:33:23,510 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:33:23,511 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 00:33:23,511 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:33:23,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413475974] [2022-11-22 00:33:23,511 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 00:33:23,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173901210] [2022-11-22 00:33:23,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173901210] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:33:23,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:33:23,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:33:23,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798759569] [2022-11-22 00:33:23,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:33:23,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 00:33:23,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:33:23,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 00:33:23,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:33:23,515 INFO L87 Difference]: Start difference. First operand 146 states and 191 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:33:23,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:33:23,677 INFO L93 Difference]: Finished difference Result 172 states and 215 transitions. [2022-11-22 00:33:23,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:33:23,678 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-22 00:33:23,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:33:23,679 INFO L225 Difference]: With dead ends: 172 [2022-11-22 00:33:23,679 INFO L226 Difference]: Without dead ends: 171 [2022-11-22 00:33:23,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-22 00:33:23,680 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 17 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:33:23,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 21 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:33:23,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-11-22 00:33:23,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 146. [2022-11-22 00:33:23,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 142 states have (on average 1.323943661971831) internal successors, (188), 145 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:33:23,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 188 transitions. [2022-11-22 00:33:23,695 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 188 transitions. Word has length 21 [2022-11-22 00:33:23,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:33:23,695 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 188 transitions. [2022-11-22 00:33:23,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:33:23,695 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 188 transitions. [2022-11-22 00:33:23,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-22 00:33:23,696 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:33:23,696 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:33:23,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-22 00:33:23,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-22 00:33:23,897 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-22 00:33:23,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:33:23,897 INFO L85 PathProgramCache]: Analyzing trace with hash -453488359, now seen corresponding path program 1 times [2022-11-22 00:33:23,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:33:23,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456644] [2022-11-22 00:33:23,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:33:23,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:33:23,922 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 00:33:23,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1090203625] [2022-11-22 00:33:23,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:33:23,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:33:23,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:33:23,924 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:33:23,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-22 00:33:24,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:33:24,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-22 00:33:24,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:33:24,308 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:33:24,308 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 00:33:24,309 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:33:24,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456644] [2022-11-22 00:33:24,309 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 00:33:24,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090203625] [2022-11-22 00:33:24,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090203625] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:33:24,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:33:24,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-22 00:33:24,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789578255] [2022-11-22 00:33:24,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:33:24,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 00:33:24,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:33:24,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 00:33:24,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-22 00:33:24,311 INFO L87 Difference]: Start difference. First operand 146 states and 188 transitions. Second operand has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:33:24,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:33:24,677 INFO L93 Difference]: Finished difference Result 150 states and 191 transitions. [2022-11-22 00:33:24,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-22 00:33:24,677 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-22 00:33:24,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:33:24,678 INFO L225 Difference]: With dead ends: 150 [2022-11-22 00:33:24,679 INFO L226 Difference]: Without dead ends: 149 [2022-11-22 00:33:24,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2022-11-22 00:33:24,680 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 57 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:33:24,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 27 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 00:33:24,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-11-22 00:33:24,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 145. [2022-11-22 00:33:24,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 142 states have (on average 1.2394366197183098) internal successors, (176), 144 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:33:24,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 176 transitions. [2022-11-22 00:33:24,689 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 176 transitions. Word has length 22 [2022-11-22 00:33:24,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:33:24,690 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 176 transitions. [2022-11-22 00:33:24,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:33:24,690 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 176 transitions. [2022-11-22 00:33:24,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-22 00:33:24,691 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:33:24,691 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-22 00:33:24,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-22 00:33:24,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-22 00:33:24,898 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-22 00:33:24,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:33:24,898 INFO L85 PathProgramCache]: Analyzing trace with hash -497444369, now seen corresponding path program 1 times [2022-11-22 00:33:24,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:33:24,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34324792] [2022-11-22 00:33:24,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:33:24,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:33:24,929 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 00:33:24,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [480716300] [2022-11-22 00:33:24,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:33:24,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:33:24,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:33:24,931 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:33:24,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd482da-0ecd-4cc2-8d90-2eb57997d8df/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-22 00:33:25,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:33:25,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-22 00:33:25,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:33:25,362 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:33:25,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:33:26,095 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:33:26,095 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:33:26,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34324792] [2022-11-22 00:33:26,096 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 00:33:26,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480716300] [2022-11-22 00:33:26,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [480716300] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:33:26,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1126293665] [2022-11-22 00:33:26,098 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-22 00:33:26,098 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:33:26,098 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:33:26,098 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:33:26,098 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:33:26,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2022-11-22 00:33:26,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,184 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 00:33:26,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 11 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 50 [2022-11-22 00:33:26,217 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-22 00:33:26,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-22 00:33:26,259 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 00:33:26,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-22 00:33:26,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2022-11-22 00:33:26,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-22 00:33:26,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2022-11-22 00:33:26,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2022-11-22 00:33:26,445 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-22 00:33:26,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 42 [2022-11-22 00:33:26,495 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-22 00:33:26,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-22 00:33:26,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,523 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:26,523 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:26,560 INFO L321 Elim1Store]: treesize reduction 50, result has 20.6 percent of original size [2022-11-22 00:33:26,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 284 treesize of output 186 [2022-11-22 00:33:26,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,628 INFO L321 Elim1Store]: treesize reduction 91, result has 22.2 percent of original size [2022-11-22 00:33:26,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 14 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 164 treesize of output 94 [2022-11-22 00:33:26,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 55 [2022-11-22 00:33:26,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,874 INFO L321 Elim1Store]: treesize reduction 352, result has 11.8 percent of original size [2022-11-22 00:33:26,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 18 case distinctions, treesize of input 533 treesize of output 338 [2022-11-22 00:33:26,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,902 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:26,910 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-22 00:33:26,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 318 treesize of output 227 [2022-11-22 00:33:26,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,932 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:26,951 INFO L321 Elim1Store]: treesize reduction 39, result has 25.0 percent of original size [2022-11-22 00:33:26,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 269 treesize of output 189 [2022-11-22 00:33:26,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 56 [2022-11-22 00:33:26,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:26,996 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 00:33:26,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 1 case distinctions, treesize of input 145 treesize of output 122 [2022-11-22 00:33:27,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:27,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:27,387 INFO L321 Elim1Store]: treesize reduction 154, result has 14.9 percent of original size [2022-11-22 00:33:27,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 576 treesize of output 559 [2022-11-22 00:33:27,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:27,409 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:27,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:27,411 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:27,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:27,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:27,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:27,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:27,787 INFO L321 Elim1Store]: treesize reduction 777, result has 9.3 percent of original size [2022-11-22 00:33:27,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 23 case distinctions, treesize of input 810 treesize of output 654 [2022-11-22 00:33:27,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:27,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:27,974 INFO L321 Elim1Store]: treesize reduction 312, result has 12.1 percent of original size [2022-11-22 00:33:27,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 572 treesize of output 531 [2022-11-22 00:33:28,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:28,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:28,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:28,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:28,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:28,055 INFO L321 Elim1Store]: treesize reduction 137, result has 12.2 percent of original size [2022-11-22 00:33:28,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 552 treesize of output 531 [2022-11-22 00:33:28,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:28,081 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:28,082 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:28,242 INFO L321 Elim1Store]: treesize reduction 666, result has 9.1 percent of original size [2022-11-22 00:33:28,242 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 17 case distinctions, treesize of input 655 treesize of output 542 [2022-11-22 00:33:28,392 INFO L321 Elim1Store]: treesize reduction 160, result has 20.4 percent of original size [2022-11-22 00:33:28,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 534 treesize of output 554 [2022-11-22 00:33:28,453 INFO L321 Elim1Store]: treesize reduction 67, result has 6.9 percent of original size [2022-11-22 00:33:28,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 529 treesize of output 534 [2022-11-22 00:33:29,328 INFO L321 Elim1Store]: treesize reduction 714, result has 9.5 percent of original size [2022-11-22 00:33:29,329 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 13 new quantified variables, introduced 36 case distinctions, treesize of input 1641 treesize of output 1166 [2022-11-22 00:33:29,367 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:29,368 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:29,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:29,460 INFO L321 Elim1Store]: treesize reduction 202, result has 15.1 percent of original size [2022-11-22 00:33:29,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 1113 treesize of output 983 [2022-11-22 00:33:29,637 INFO L321 Elim1Store]: treesize reduction 674, result has 9.5 percent of original size [2022-11-22 00:33:29,638 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 14 new quantified variables, introduced 36 case distinctions, treesize of input 1468 treesize of output 1158 [2022-11-22 00:33:29,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:29,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:29,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:29,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:29,694 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:29,696 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:29,799 INFO L321 Elim1Store]: treesize reduction 342, result has 11.9 percent of original size [2022-11-22 00:33:29,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 7 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 1274 treesize of output 965 [2022-11-22 00:33:29,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:29,887 INFO L321 Elim1Store]: treesize reduction 276, result has 10.1 percent of original size [2022-11-22 00:33:29,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 12 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 11 case distinctions, treesize of input 1190 treesize of output 1041 [2022-11-22 00:33:30,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:33:30,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 00:33:30,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:30,642 INFO L321 Elim1Store]: treesize reduction 106, result has 32.1 percent of original size [2022-11-22 00:33:30,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 250 treesize of output 192 [2022-11-22 00:33:30,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:30,726 INFO L321 Elim1Store]: treesize reduction 88, result has 32.3 percent of original size [2022-11-22 00:33:30,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 184 treesize of output 116 [2022-11-22 00:33:30,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:30,797 INFO L321 Elim1Store]: treesize reduction 54, result has 46.5 percent of original size [2022-11-22 00:33:30,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 87 treesize of output 47 [2022-11-22 00:33:30,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:30,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 9 [2022-11-22 00:33:30,924 INFO L321 Elim1Store]: treesize reduction 117, result has 16.4 percent of original size [2022-11-22 00:33:30,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 199 treesize of output 190 [2022-11-22 00:33:31,065 INFO L321 Elim1Store]: treesize reduction 116, result has 41.4 percent of original size [2022-11-22 00:33:31,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 214 treesize of output 245 [2022-11-22 00:33:31,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:31,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:31,132 INFO L321 Elim1Store]: treesize reduction 89, result has 14.4 percent of original size [2022-11-22 00:33:31,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 237 treesize of output 176 [2022-11-22 00:33:31,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:31,226 INFO L321 Elim1Store]: treesize reduction 100, result has 31.5 percent of original size [2022-11-22 00:33:31,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 248 treesize of output 203 [2022-11-22 00:33:32,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:33,099 INFO L321 Elim1Store]: treesize reduction 112, result has 32.5 percent of original size [2022-11-22 00:33:33,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 250 treesize of output 182 [2022-11-22 00:33:33,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:33,187 INFO L321 Elim1Store]: treesize reduction 66, result has 47.2 percent of original size [2022-11-22 00:33:33,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 95 treesize of output 59 [2022-11-22 00:33:33,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:33,249 INFO L321 Elim1Store]: treesize reduction 106, result has 32.1 percent of original size [2022-11-22 00:33:33,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 226 treesize of output 160 [2022-11-22 00:33:33,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:33:33,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 00:33:33,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:33,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 9 [2022-11-22 00:33:33,447 INFO L321 Elim1Store]: treesize reduction 137, result has 14.4 percent of original size [2022-11-22 00:33:33,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 14 case distinctions, treesize of input 208 treesize of output 198 [2022-11-22 00:33:33,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:33,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:33,524 INFO L321 Elim1Store]: treesize reduction 121, result has 17.1 percent of original size [2022-11-22 00:33:33,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 227 treesize of output 190 [2022-11-22 00:33:33,624 INFO L321 Elim1Store]: treesize reduction 144, result has 33.9 percent of original size [2022-11-22 00:33:33,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 242 treesize of output 260 [2022-11-22 00:33:33,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:33,706 INFO L321 Elim1Store]: treesize reduction 108, result has 26.0 percent of original size [2022-11-22 00:33:33,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 245 treesize of output 196 [2022-11-22 00:33:34,862 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 00:33:34,864 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 00:33:34,865 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 00:33:34,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:34,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:34,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:34,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2022-11-22 00:33:34,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 00:33:34,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:34,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:34,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:34,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2022-11-22 00:33:34,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:34,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:34,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:34,948 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2022-11-22 00:33:34,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:33:34,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 00:33:34,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:34,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:34,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:34,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:34,987 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2022-11-22 00:33:35,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:35,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:35,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:35,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:35,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2022-11-22 00:33:35,077 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 00:33:35,077 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-22 00:33:35,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 12 treesize of output 14 [2022-11-22 00:33:35,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:35,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:35,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:35,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:35,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:35,106 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:35,107 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:35,143 INFO L321 Elim1Store]: treesize reduction 54, result has 14.3 percent of original size [2022-11-22 00:33:35,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 284 treesize of output 182 [2022-11-22 00:33:35,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:35,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:35,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:35,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:35,204 INFO L321 Elim1Store]: treesize reduction 91, result has 22.2 percent of original size [2022-11-22 00:33:35,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 151 treesize of output 85 [2022-11-22 00:33:35,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 22 [2022-11-22 00:33:35,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 31 treesize of output 15 [2022-11-22 00:33:35,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:35,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:35,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:35,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:35,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:35,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:35,283 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:35,293 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-22 00:33:35,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 271 treesize of output 174 [2022-11-22 00:33:35,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:35,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:35,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:35,313 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:35,340 INFO L321 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2022-11-22 00:33:35,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 238 treesize of output 152 [2022-11-22 00:33:35,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:35,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 30 [2022-11-22 00:33:35,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:35,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:35,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:35,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 79 [2022-11-22 00:33:35,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:35,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:35,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:35,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 79 [2022-11-22 00:33:35,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:35,531 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:35,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:35,533 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:35,534 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:35,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:35,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:35,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:35,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:36,002 INFO L321 Elim1Store]: treesize reduction 393, result has 15.8 percent of original size [2022-11-22 00:33:36,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 23 case distinctions, treesize of input 642 treesize of output 485 [2022-11-22 00:33:36,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:36,048 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:36,055 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 00:33:36,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 332 treesize of output 317 [2022-11-22 00:33:36,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:36,084 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:36,085 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:36,086 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:36,223 INFO L321 Elim1Store]: treesize reduction 396, result has 13.0 percent of original size [2022-11-22 00:33:36,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 478 treesize of output 381 [2022-11-22 00:33:36,324 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-22 00:33:36,324 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 330 treesize of output 335 [2022-11-22 00:33:36,367 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-22 00:33:36,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 325 treesize of output 328 [2022-11-22 00:33:36,397 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:36,433 INFO L321 Elim1Store]: treesize reduction 122, result has 12.2 percent of original size [2022-11-22 00:33:36,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 358 treesize of output 319 [2022-11-22 00:33:36,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:36,455 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:36,461 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 00:33:36,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 338 treesize of output 319 [2022-11-22 00:33:36,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:36,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:36,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:36,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:36,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:36,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:36,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:36,692 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:36,698 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:36,750 INFO L321 Elim1Store]: treesize reduction 193, result has 6.3 percent of original size [2022-11-22 00:33:36,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 11 disjoint index pairs (out of 28 index pairs), introduced 9 new quantified variables, introduced 22 case distinctions, treesize of input 395 treesize of output 343 [2022-11-22 00:33:36,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:36,776 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:36,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:36,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:36,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:36,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:36,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:36,782 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:36,800 INFO L321 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2022-11-22 00:33:36,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 10 disjoint index pairs (out of 36 index pairs), introduced 10 new quantified variables, introduced 26 case distinctions, treesize of input 762 treesize of output 604 [2022-11-22 00:33:36,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:36,820 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:36,821 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:36,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:36,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:36,874 INFO L321 Elim1Store]: treesize reduction 80, result has 15.8 percent of original size [2022-11-22 00:33:36,875 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 30 case distinctions, treesize of input 730 treesize of output 587 [2022-11-22 00:33:36,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:36,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:36,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:36,898 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:36,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:36,901 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:36,980 INFO L321 Elim1Store]: treesize reduction 212, result has 15.9 percent of original size [2022-11-22 00:33:36,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 9 new quantified variables, introduced 25 case distinctions, treesize of input 694 treesize of output 412 [2022-11-22 00:33:37,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:37,002 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:37,029 INFO L321 Elim1Store]: treesize reduction 94, result has 21.0 percent of original size [2022-11-22 00:33:37,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 450 treesize of output 412 [2022-11-22 00:33:37,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:37,363 INFO L321 Elim1Store]: treesize reduction 106, result has 32.1 percent of original size [2022-11-22 00:33:37,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 250 treesize of output 192 [2022-11-22 00:33:37,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:37,449 INFO L321 Elim1Store]: treesize reduction 88, result has 32.3 percent of original size [2022-11-22 00:33:37,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 184 treesize of output 116 [2022-11-22 00:33:37,487 INFO L321 Elim1Store]: treesize reduction 33, result has 38.9 percent of original size [2022-11-22 00:33:37,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 21 [2022-11-22 00:33:37,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:37,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 25 [2022-11-22 00:33:37,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 00:33:37,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:33:37,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:37,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 9 [2022-11-22 00:33:37,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:37,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:37,755 INFO L321 Elim1Store]: treesize reduction 186, result has 23.1 percent of original size [2022-11-22 00:33:37,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 223 treesize of output 197 [2022-11-22 00:33:37,857 INFO L321 Elim1Store]: treesize reduction 113, result has 14.4 percent of original size [2022-11-22 00:33:37,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 222 treesize of output 185 [2022-11-22 00:33:37,999 INFO L321 Elim1Store]: treesize reduction 112, result has 37.1 percent of original size [2022-11-22 00:33:37,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 225 treesize of output 228 [2022-11-22 00:33:39,106 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:33:39,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:39,256 INFO L321 Elim1Store]: treesize reduction 106, result has 32.1 percent of original size [2022-11-22 00:33:39,256 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 250 treesize of output 192 [2022-11-22 00:33:39,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:39,346 INFO L321 Elim1Store]: treesize reduction 88, result has 32.3 percent of original size [2022-11-22 00:33:39,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 184 treesize of output 116 [2022-11-22 00:33:39,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:39,414 INFO L321 Elim1Store]: treesize reduction 54, result has 46.5 percent of original size [2022-11-22 00:33:39,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 87 treesize of output 47 [2022-11-22 00:33:39,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 00:33:39,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 9 [2022-11-22 00:33:39,669 INFO L321 Elim1Store]: treesize reduction 186, result has 23.1 percent of original size [2022-11-22 00:33:39,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 192 treesize of output 182 [2022-11-22 00:33:39,800 INFO L321 Elim1Store]: treesize reduction 113, result has 14.4 percent of original size [2022-11-22 00:33:39,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 195 treesize of output 166 [2022-11-22 00:33:39,929 INFO L321 Elim1Store]: treesize reduction 112, result has 37.1 percent of original size [2022-11-22 00:33:39,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 198 treesize of output 209 [2022-11-22 00:33:41,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:41,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 19 [2022-11-22 00:33:41,183 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:41,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:41,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 19 [2022-11-22 00:33:41,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:41,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 9 [2022-11-22 00:33:41,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:41,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:41,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:41,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:41,325 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:41,491 INFO L321 Elim1Store]: treesize reduction 230, result has 32.0 percent of original size [2022-11-22 00:33:41,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 170 treesize of output 252 [2022-11-22 00:33:41,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:41,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:41,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:41,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:41,509 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:41,610 INFO L321 Elim1Store]: treesize reduction 134, result has 34.3 percent of original size [2022-11-22 00:33:41,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 228 treesize of output 250 [2022-11-22 00:33:51,252 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:33:51,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:51,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:51,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:51,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2022-11-22 00:33:51,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 00:33:52,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 00:33:52,414 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 19 treesize of output 1 [2022-11-22 00:33:52,420 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 19 treesize of output 1 [2022-11-22 00:33:52,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 00:33:52,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:33:52,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:52,544 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:52,699 INFO L321 Elim1Store]: treesize reduction 106, result has 32.1 percent of original size [2022-11-22 00:33:52,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 250 treesize of output 192 [2022-11-22 00:33:52,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:52,714 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:52,811 INFO L321 Elim1Store]: treesize reduction 88, result has 32.3 percent of original size [2022-11-22 00:33:52,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 184 treesize of output 116 [2022-11-22 00:33:52,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:52,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2022-11-22 00:33:52,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:52,900 INFO L321 Elim1Store]: treesize reduction 56, result has 46.7 percent of original size [2022-11-22 00:33:52,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 67 treesize of output 54 [2022-11-22 00:33:52,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:52,994 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:53,028 INFO L321 Elim1Store]: treesize reduction 17, result has 43.3 percent of original size [2022-11-22 00:33:53,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 349 treesize of output 312 [2022-11-22 00:33:53,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:53,074 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:53,190 INFO L321 Elim1Store]: treesize reduction 121, result has 17.1 percent of original size [2022-11-22 00:33:53,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 312 treesize of output 255 [2022-11-22 00:33:53,213 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:53,410 INFO L321 Elim1Store]: treesize reduction 148, result has 22.9 percent of original size [2022-11-22 00:33:53,410 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 327 treesize of output 274 [2022-11-22 00:33:53,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:53,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:53,453 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:53,499 INFO L321 Elim1Store]: treesize reduction 133, result has 12.5 percent of original size [2022-11-22 00:33:53,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 14 case distinctions, treesize of input 311 treesize of output 265 [2022-11-22 00:33:53,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:33:53,531 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:33:53,623 INFO L321 Elim1Store]: treesize reduction 132, result has 33.3 percent of original size [2022-11-22 00:33:53,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 314 treesize of output 308 [2022-11-22 00:34:06,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 00:34:06,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:06,752 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:34:06,910 INFO L321 Elim1Store]: treesize reduction 106, result has 32.1 percent of original size [2022-11-22 00:34:06,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 250 treesize of output 192 [2022-11-22 00:34:06,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:06,920 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:34:06,999 INFO L321 Elim1Store]: treesize reduction 88, result has 32.3 percent of original size [2022-11-22 00:34:06,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 184 treesize of output 116 [2022-11-22 00:34:07,039 INFO L321 Elim1Store]: treesize reduction 33, result has 38.9 percent of original size [2022-11-22 00:34:07,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 21 [2022-11-22 00:34:07,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:07,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 25 [2022-11-22 00:34:07,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:34:07,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:07,131 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 9 [2022-11-22 00:34:07,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:07,172 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:34:07,565 INFO L321 Elim1Store]: treesize reduction 209, result has 29.9 percent of original size [2022-11-22 00:34:07,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 231 treesize of output 238 [2022-11-22 00:34:07,593 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:34:07,684 INFO L321 Elim1Store]: treesize reduction 113, result has 14.4 percent of original size [2022-11-22 00:34:07,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 260 treesize of output 199 [2022-11-22 00:34:07,705 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:34:07,854 INFO L321 Elim1Store]: treesize reduction 108, result has 39.3 percent of original size [2022-11-22 00:34:07,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 267 treesize of output 246 [2022-11-22 00:34:20,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 00:34:20,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:34:20,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:20,346 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:34:20,484 INFO L321 Elim1Store]: treesize reduction 106, result has 32.1 percent of original size [2022-11-22 00:34:20,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 250 treesize of output 192 [2022-11-22 00:34:20,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:20,495 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:34:20,580 INFO L321 Elim1Store]: treesize reduction 88, result has 32.3 percent of original size [2022-11-22 00:34:20,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 184 treesize of output 116 [2022-11-22 00:34:20,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:20,646 INFO L321 Elim1Store]: treesize reduction 54, result has 46.5 percent of original size [2022-11-22 00:34:20,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 87 treesize of output 47 [2022-11-22 00:34:20,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:20,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 9 [2022-11-22 00:34:20,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:20,759 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:34:20,915 INFO L321 Elim1Store]: treesize reduction 154, result has 14.0 percent of original size [2022-11-22 00:34:20,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 219 treesize of output 189 [2022-11-22 00:34:20,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:20,948 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:34:21,215 INFO L321 Elim1Store]: treesize reduction 187, result has 24.6 percent of original size [2022-11-22 00:34:21,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 234 treesize of output 218 [2022-11-22 00:34:21,238 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:34:21,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:21,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:21,334 INFO L321 Elim1Store]: treesize reduction 113, result has 14.4 percent of original size [2022-11-22 00:34:21,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 274 treesize of output 205 [2022-11-22 00:34:21,353 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:34:21,495 INFO L321 Elim1Store]: treesize reduction 107, result has 39.9 percent of original size [2022-11-22 00:34:21,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 281 treesize of output 253 [2022-11-22 00:34:24,301 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-22 00:34:24,301 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 1 case distinctions, treesize of input 33 treesize of output 29 [2022-11-22 00:34:24,328 INFO L321 Elim1Store]: treesize reduction 49, result has 23.4 percent of original size [2022-11-22 00:34:24,329 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 1 case distinctions, treesize of input 45 treesize of output 25 [2022-11-22 00:34:24,365 INFO L321 Elim1Store]: treesize reduction 51, result has 45.7 percent of original size [2022-11-22 00:34:24,365 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 1 case distinctions, treesize of input 75 treesize of output 43 [2022-11-22 00:34:24,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 00:34:24,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:24,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:24,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:24,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:24,446 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:34:24,586 INFO L321 Elim1Store]: treesize reduction 230, result has 32.0 percent of original size [2022-11-22 00:34:24,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 127 treesize of output 215 [2022-11-22 00:34:24,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:24,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:24,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:24,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:24,605 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:34:24,703 INFO L321 Elim1Store]: treesize reduction 134, result has 34.3 percent of original size [2022-11-22 00:34:24,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 191 treesize of output 219 [2022-11-22 00:34:25,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:34:25,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:25,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:25,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:25,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2022-11-22 00:34:25,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 00:34:25,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:25,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:25,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:25,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:27,277 INFO L321 Elim1Store]: treesize reduction 1482, result has 13.2 percent of original size [2022-11-22 00:34:27,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 11 disjoint index pairs (out of 120 index pairs), introduced 18 new quantified variables, introduced 122 case distinctions, treesize of input 1386 treesize of output 1149 [2022-11-22 00:34:27,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:27,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:27,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:27,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:28,525 INFO L321 Elim1Store]: treesize reduction 1996, result has 11.6 percent of original size [2022-11-22 00:34:28,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 12 disjoint index pairs (out of 120 index pairs), introduced 18 new quantified variables, introduced 121 case distinctions, treesize of input 1530 treesize of output 1473 [2022-11-22 00:35:46,929 WARN L233 SmtUtils]: Spent 5.03s on a formula simplification that was a NOOP. DAG size: 1165 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 00:38:32,295 WARN L233 SmtUtils]: Spent 52.50s on a formula simplification. DAG size of input: 2043 DAG size of output: 2043 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 00:38:53,824 WARN L233 SmtUtils]: Spent 6.83s on a formula simplification that was a NOOP. DAG size: 2038 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 00:40:28,545 WARN L233 SmtUtils]: Spent 12.10s on a formula simplification that was a NOOP. DAG size: 1428 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 00:40:46,069 WARN L233 SmtUtils]: Spent 5.99s on a formula simplification that was a NOOP. DAG size: 1422 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 00:41:06,713 WARN L233 SmtUtils]: Spent 11.16s on a formula simplification. DAG size of input: 1346 DAG size of output: 1346 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 00:42:52,674 WARN L233 SmtUtils]: Spent 5.69s on a formula simplification that was a NOOP. DAG size: 1422 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-22 00:45:55,081 WARN L233 SmtUtils]: Spent 8.42s on a formula simplification that was a NOOP. DAG size: 2035 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)