./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 e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/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_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0 --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-e04fb08 [2022-11-16 19:34:41,213 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 19:34:41,217 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 19:34:41,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 19:34:41,240 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 19:34:41,241 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 19:34:41,243 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 19:34:41,244 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 19:34:41,250 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 19:34:41,251 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 19:34:41,252 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 19:34:41,254 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 19:34:41,254 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 19:34:41,255 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 19:34:41,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 19:34:41,258 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 19:34:41,259 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 19:34:41,260 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 19:34:41,262 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 19:34:41,272 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 19:34:41,274 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 19:34:41,280 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 19:34:41,281 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 19:34:41,282 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 19:34:41,285 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 19:34:41,286 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 19:34:41,286 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 19:34:41,287 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 19:34:41,288 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 19:34:41,289 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 19:34:41,290 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 19:34:41,297 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 19:34:41,300 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 19:34:41,302 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 19:34:41,303 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 19:34:41,303 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 19:34:41,304 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 19:34:41,305 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 19:34:41,305 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 19:34:41,306 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 19:34:41,307 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 19:34:41,308 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-16 19:34:41,355 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 19:34:41,356 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 19:34:41,356 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 19:34:41,356 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 19:34:41,357 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 19:34:41,357 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 19:34:41,357 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 19:34:41,357 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 19:34:41,358 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 19:34:41,358 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 19:34:41,358 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 19:34:41,358 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 19:34:41,358 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 19:34:41,358 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 19:34:41,359 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 19:34:41,359 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 19:34:41,359 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 19:34:41,359 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 19:34:41,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 19:34:41,360 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 19:34:41,360 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 19:34:41,360 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 19:34:41,361 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 19:34:41,361 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 19:34:41,361 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 19:34:41,361 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 19:34:41,361 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 19:34:41,362 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 19:34:41,362 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 19:34:41,362 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 19:34:41,362 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 19:34:41,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 19:34:41,366 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 19:34:41,366 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 19:34:41,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:34:41,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 19:34:41,368 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 19:34:41,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 19:34:41,368 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 19:34:41,368 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 19:34:41,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 19:34:41,369 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 19:34:41,369 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 19:34:41,369 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_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad4b9fd301578a7ddb25530c70896459a49284f596306d3b6d0c853e43916174 [2022-11-16 19:34:41,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 19:34:41,713 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 19:34:41,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 19:34:41,717 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 19:34:41,718 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 19:34:41,719 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/list-ext-properties/test-0504_1.i [2022-11-16 19:34:41,791 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/data/57460d32b/365c6901f6a14e19802d7d23be270379/FLAGb5b997f10 [2022-11-16 19:34:42,406 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 19:34:42,407 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/sv-benchmarks/c/list-ext-properties/test-0504_1.i [2022-11-16 19:34:42,420 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/data/57460d32b/365c6901f6a14e19802d7d23be270379/FLAGb5b997f10 [2022-11-16 19:34:42,726 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/data/57460d32b/365c6901f6a14e19802d7d23be270379 [2022-11-16 19:34:42,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 19:34:42,730 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 19:34:42,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 19:34:42,733 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 19:34:42,747 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 19:34:42,747 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:34:42" (1/1) ... [2022-11-16 19:34:42,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d586560 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:42, skipping insertion in model container [2022-11-16 19:34:42,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:34:42" (1/1) ... [2022-11-16 19:34:42,758 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 19:34:42,808 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 19:34:43,283 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:34:43,296 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 19:34:43,356 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:34:43,387 INFO L208 MainTranslator]: Completed translation [2022-11-16 19:34:43,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:43 WrapperNode [2022-11-16 19:34:43,387 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 19:34:43,388 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 19:34:43,388 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 19:34:43,388 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 19:34:43,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:43" (1/1) ... [2022-11-16 19:34:43,427 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:43" (1/1) ... [2022-11-16 19:34:43,468 INFO L138 Inliner]: procedures = 123, calls = 28, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 116 [2022-11-16 19:34:43,469 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 19:34:43,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 19:34:43,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 19:34:43,471 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 19:34:43,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:43" (1/1) ... [2022-11-16 19:34:43,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:43" (1/1) ... [2022-11-16 19:34:43,492 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:43" (1/1) ... [2022-11-16 19:34:43,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:43" (1/1) ... [2022-11-16 19:34:43,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:43" (1/1) ... [2022-11-16 19:34:43,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:43" (1/1) ... [2022-11-16 19:34:43,517 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:43" (1/1) ... [2022-11-16 19:34:43,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:43" (1/1) ... [2022-11-16 19:34:43,530 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 19:34:43,531 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 19:34:43,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 19:34:43,531 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 19:34:43,532 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:43" (1/1) ... [2022-11-16 19:34:43,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:34:43,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:34:43,578 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 19:34:43,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 19:34:43,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 19:34:43,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 19:34:43,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 19:34:43,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 19:34:43,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 19:34:43,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 19:34:43,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 19:34:43,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 19:34:43,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 19:34:43,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 19:34:43,829 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 19:34:43,831 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 19:34:44,107 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 19:34:44,225 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 19:34:44,225 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-16 19:34:44,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:34:44 BoogieIcfgContainer [2022-11-16 19:34:44,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 19:34:44,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 19:34:44,231 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 19:34:44,235 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 19:34:44,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:34:42" (1/3) ... [2022-11-16 19:34:44,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19fb1c08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:34:44, skipping insertion in model container [2022-11-16 19:34:44,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:43" (2/3) ... [2022-11-16 19:34:44,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19fb1c08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:34:44, skipping insertion in model container [2022-11-16 19:34:44,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:34:44" (3/3) ... [2022-11-16 19:34:44,238 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0504_1.i [2022-11-16 19:34:44,258 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 19:34:44,259 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-16 19:34:44,340 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 19:34:44,348 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;@7d77d86b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 19:34:44,349 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-16 19:34:44,353 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) [2022-11-16 19:34:44,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-16 19:34:44,360 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:34:44,361 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-16 19:34:44,361 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)] === [2022-11-16 19:34:44,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:34:44,366 INFO L85 PathProgramCache]: Analyzing trace with hash 4455034, now seen corresponding path program 1 times [2022-11-16 19:34:44,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:34:44,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022295482] [2022-11-16 19:34:44,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:34:44,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:34:44,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:34:44,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:34:44,526 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:34:44,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022295482] [2022-11-16 19:34:44,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022295482] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:34:44,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:34:44,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 19:34:44,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058316855] [2022-11-16 19:34:44,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:34:44,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 19:34:44,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:34:44,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 19:34:44,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 19:34:44,582 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) [2022-11-16 19:34:44,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:34:44,647 INFO L93 Difference]: Finished difference Result 57 states and 67 transitions. [2022-11-16 19:34:44,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 19:34:44,650 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 [2022-11-16 19:34:44,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:34:44,659 INFO L225 Difference]: With dead ends: 57 [2022-11-16 19:34:44,660 INFO L226 Difference]: Without dead ends: 28 [2022-11-16 19:34:44,664 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 [2022-11-16 19:34:44,669 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, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 19:34:44,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 19:34:44,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-16 19:34:44,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-11-16 19:34:44,720 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) [2022-11-16 19:34:44,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2022-11-16 19:34:44,724 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 4 [2022-11-16 19:34:44,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:34:44,725 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2022-11-16 19:34:44,725 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) [2022-11-16 19:34:44,729 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2022-11-16 19:34:44,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-16 19:34:44,730 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:34:44,730 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-16 19:34:44,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 19:34:44,732 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)] === [2022-11-16 19:34:44,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:34:44,732 INFO L85 PathProgramCache]: Analyzing trace with hash 4501901, now seen corresponding path program 1 times [2022-11-16 19:34:44,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:34:44,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078335947] [2022-11-16 19:34:44,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:34:44,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:34:44,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:34:44,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:34:44,833 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:34:44,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078335947] [2022-11-16 19:34:44,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078335947] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:34:44,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:34:44,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 19:34:44,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120658441] [2022-11-16 19:34:44,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:34:44,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 19:34:44,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:34:44,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 19:34:44,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 19:34:44,837 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) [2022-11-16 19:34:45,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:34:45,005 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2022-11-16 19:34:45,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 19:34:45,006 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 [2022-11-16 19:34:45,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:34:45,007 INFO L225 Difference]: With dead ends: 41 [2022-11-16 19:34:45,007 INFO L226 Difference]: Without dead ends: 32 [2022-11-16 19:34:45,008 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 [2022-11-16 19:34:45,009 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 [2022-11-16 19:34:45,010 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] [2022-11-16 19:34:45,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-16 19:34:45,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-11-16 19:34:45,014 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) [2022-11-16 19:34:45,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2022-11-16 19:34:45,015 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 4 [2022-11-16 19:34:45,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:34:45,016 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2022-11-16 19:34:45,016 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) [2022-11-16 19:34:45,016 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2022-11-16 19:34:45,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-16 19:34:45,017 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:34:45,017 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-16 19:34:45,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 19:34:45,017 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)] === [2022-11-16 19:34:45,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:34:45,018 INFO L85 PathProgramCache]: Analyzing trace with hash 31364772, now seen corresponding path program 1 times [2022-11-16 19:34:45,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:34:45,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390950538] [2022-11-16 19:34:45,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:34:45,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:34:45,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:34:45,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:34:45,204 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:34:45,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390950538] [2022-11-16 19:34:45,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390950538] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:34:45,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:34:45,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 19:34:45,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814491777] [2022-11-16 19:34:45,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:34:45,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 19:34:45,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:34:45,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 19:34:45,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 19:34:45,207 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) [2022-11-16 19:34:45,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:34:45,367 INFO L93 Difference]: Finished difference Result 57 states and 63 transitions. [2022-11-16 19:34:45,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 19:34:45,368 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 [2022-11-16 19:34:45,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:34:45,369 INFO L225 Difference]: With dead ends: 57 [2022-11-16 19:34:45,369 INFO L226 Difference]: Without dead ends: 56 [2022-11-16 19:34:45,369 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 [2022-11-16 19:34:45,370 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 [2022-11-16 19:34:45,371 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] [2022-11-16 19:34:45,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-16 19:34:45,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 33. [2022-11-16 19:34:45,376 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) [2022-11-16 19:34:45,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2022-11-16 19:34:45,377 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 6 [2022-11-16 19:34:45,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:34:45,377 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2022-11-16 19:34:45,377 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) [2022-11-16 19:34:45,378 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2022-11-16 19:34:45,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-16 19:34:45,378 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:34:45,378 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:34:45,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 19:34:45,379 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)] === [2022-11-16 19:34:45,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:34:45,379 INFO L85 PathProgramCache]: Analyzing trace with hash 972307995, now seen corresponding path program 1 times [2022-11-16 19:34:45,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:34:45,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481722534] [2022-11-16 19:34:45,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:34:45,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:34:45,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:34:45,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:34:45,489 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:34:45,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481722534] [2022-11-16 19:34:45,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481722534] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:34:45,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:34:45,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 19:34:45,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120801153] [2022-11-16 19:34:45,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:34:45,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 19:34:45,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:34:45,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 19:34:45,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 19:34:45,492 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) [2022-11-16 19:34:45,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:34:45,680 INFO L93 Difference]: Finished difference Result 53 states and 58 transitions. [2022-11-16 19:34:45,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 19:34:45,681 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 [2022-11-16 19:34:45,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:34:45,682 INFO L225 Difference]: With dead ends: 53 [2022-11-16 19:34:45,682 INFO L226 Difference]: Without dead ends: 52 [2022-11-16 19:34:45,682 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 [2022-11-16 19:34:45,683 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 25 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-11-16 19:34:45,684 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] [2022-11-16 19:34:45,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-16 19:34:45,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 34. [2022-11-16 19:34:45,688 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) [2022-11-16 19:34:45,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2022-11-16 19:34:45,689 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 7 [2022-11-16 19:34:45,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:34:45,689 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2022-11-16 19:34:45,689 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) [2022-11-16 19:34:45,689 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2022-11-16 19:34:45,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-16 19:34:45,690 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:34:45,690 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:34:45,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 19:34:45,690 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)] === [2022-11-16 19:34:45,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:34:45,691 INFO L85 PathProgramCache]: Analyzing trace with hash 768193994, now seen corresponding path program 1 times [2022-11-16 19:34:45,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:34:45,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041440288] [2022-11-16 19:34:45,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:34:45,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:34:45,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:34:45,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:34:45,862 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:34:45,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041440288] [2022-11-16 19:34:45,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041440288] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:34:45,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:34:45,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 19:34:45,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041544426] [2022-11-16 19:34:45,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:34:45,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 19:34:45,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:34:45,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 19:34:45,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 19:34:45,865 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) [2022-11-16 19:34:45,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:34:45,949 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2022-11-16 19:34:45,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 19:34:45,949 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 [2022-11-16 19:34:45,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:34:45,950 INFO L225 Difference]: With dead ends: 41 [2022-11-16 19:34:45,950 INFO L226 Difference]: Without dead ends: 39 [2022-11-16 19:34:45,950 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 [2022-11-16 19:34:45,952 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 [2022-11-16 19:34:45,952 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] [2022-11-16 19:34:45,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-16 19:34:45,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2022-11-16 19:34:45,956 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) [2022-11-16 19:34:45,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2022-11-16 19:34:45,957 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 10 [2022-11-16 19:34:45,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:34:45,957 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2022-11-16 19:34:45,957 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) [2022-11-16 19:34:45,958 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2022-11-16 19:34:45,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-16 19:34:45,958 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:34:45,958 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:34:45,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 19:34:45,979 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)] === [2022-11-16 19:34:45,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:34:45,980 INFO L85 PathProgramCache]: Analyzing trace with hash -499941843, now seen corresponding path program 1 times [2022-11-16 19:34:45,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:34:45,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194907779] [2022-11-16 19:34:45,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:34:45,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:34:46,010 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 19:34:46,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1047360956] [2022-11-16 19:34:46,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:34:46,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:34:46,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:34:46,014 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:34:46,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 19:34:46,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:34:46,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 19:34:46,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:34:46,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:34:46,404 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 19:34:46,405 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:34:46,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194907779] [2022-11-16 19:34:46,405 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 19:34:46,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047360956] [2022-11-16 19:34:46,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047360956] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:34:46,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:34:46,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 19:34:46,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510364964] [2022-11-16 19:34:46,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:34:46,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 19:34:46,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:34:46,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 19:34:46,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 19:34:46,411 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) [2022-11-16 19:34:46,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:34:46,758 INFO L93 Difference]: Finished difference Result 65 states and 72 transitions. [2022-11-16 19:34:46,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 19:34:46,760 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 [2022-11-16 19:34:46,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:34:46,761 INFO L225 Difference]: With dead ends: 65 [2022-11-16 19:34:46,761 INFO L226 Difference]: Without dead ends: 63 [2022-11-16 19:34:46,762 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 [2022-11-16 19:34:46,763 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 23 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2022-11-16 19:34:46,763 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] [2022-11-16 19:34:46,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-16 19:34:46,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 44. [2022-11-16 19:34:46,774 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) [2022-11-16 19:34:46,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2022-11-16 19:34:46,775 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 12 [2022-11-16 19:34:46,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:34:46,776 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2022-11-16 19:34:46,776 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) [2022-11-16 19:34:46,776 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2022-11-16 19:34:46,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-16 19:34:46,777 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:34:46,777 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:34:46,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 19:34:46,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-16 19:34:46,987 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)] === [2022-11-16 19:34:46,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:34:46,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1682151237, now seen corresponding path program 1 times [2022-11-16 19:34:46,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:34:46,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668873939] [2022-11-16 19:34:46,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:34:46,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:34:47,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:34:47,077 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:34:47,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:34:47,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668873939] [2022-11-16 19:34:47,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668873939] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:34:47,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:34:47,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 19:34:47,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75966379] [2022-11-16 19:34:47,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:34:47,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 19:34:47,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:34:47,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 19:34:47,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 19:34:47,080 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) [2022-11-16 19:34:47,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:34:47,176 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2022-11-16 19:34:47,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 19:34:47,177 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 [2022-11-16 19:34:47,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:34:47,177 INFO L225 Difference]: With dead ends: 49 [2022-11-16 19:34:47,178 INFO L226 Difference]: Without dead ends: 48 [2022-11-16 19:34:47,178 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 [2022-11-16 19:34:47,179 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 [2022-11-16 19:34:47,179 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] [2022-11-16 19:34:47,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-16 19:34:47,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 43. [2022-11-16 19:34:47,194 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) [2022-11-16 19:34:47,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2022-11-16 19:34:47,195 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 13 [2022-11-16 19:34:47,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:34:47,196 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2022-11-16 19:34:47,199 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) [2022-11-16 19:34:47,199 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2022-11-16 19:34:47,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-16 19:34:47,200 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:34:47,200 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:34:47,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 19:34:47,201 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)] === [2022-11-16 19:34:47,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:34:47,202 INFO L85 PathProgramCache]: Analyzing trace with hash 607081005, now seen corresponding path program 1 times [2022-11-16 19:34:47,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:34:47,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179019345] [2022-11-16 19:34:47,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:34:47,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:34:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:34:47,346 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:34:47,346 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:34:47,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179019345] [2022-11-16 19:34:47,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179019345] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:34:47,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:34:47,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 19:34:47,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328001610] [2022-11-16 19:34:47,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:34:47,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 19:34:47,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:34:47,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 19:34:47,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 19:34:47,359 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) [2022-11-16 19:34:47,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:34:47,459 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2022-11-16 19:34:47,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 19:34:47,459 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 [2022-11-16 19:34:47,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:34:47,460 INFO L225 Difference]: With dead ends: 43 [2022-11-16 19:34:47,460 INFO L226 Difference]: Without dead ends: 42 [2022-11-16 19:34:47,460 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 [2022-11-16 19:34:47,461 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 [2022-11-16 19:34:47,462 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] [2022-11-16 19:34:47,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-16 19:34:47,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-11-16 19:34:47,466 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) [2022-11-16 19:34:47,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2022-11-16 19:34:47,474 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 14 [2022-11-16 19:34:47,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:34:47,475 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2022-11-16 19:34:47,475 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) [2022-11-16 19:34:47,475 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2022-11-16 19:34:47,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-16 19:34:47,476 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:34:47,476 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:34:47,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 19:34:47,476 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)] === [2022-11-16 19:34:47,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:34:47,479 INFO L85 PathProgramCache]: Analyzing trace with hash 607080847, now seen corresponding path program 1 times [2022-11-16 19:34:47,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:34:47,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348660303] [2022-11-16 19:34:47,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:34:47,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:34:47,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:34:47,575 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:34:47,576 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:34:47,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348660303] [2022-11-16 19:34:47,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348660303] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:34:47,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:34:47,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 19:34:47,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791820396] [2022-11-16 19:34:47,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:34:47,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 19:34:47,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:34:47,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 19:34:47,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 19:34:47,578 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) [2022-11-16 19:34:47,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:34:47,664 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2022-11-16 19:34:47,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 19:34:47,664 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 [2022-11-16 19:34:47,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:34:47,665 INFO L225 Difference]: With dead ends: 43 [2022-11-16 19:34:47,665 INFO L226 Difference]: Without dead ends: 41 [2022-11-16 19:34:47,665 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 [2022-11-16 19:34:47,666 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 [2022-11-16 19:34:47,667 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] [2022-11-16 19:34:47,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-16 19:34:47,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2022-11-16 19:34:47,672 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) [2022-11-16 19:34:47,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2022-11-16 19:34:47,672 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 45 transitions. Word has length 14 [2022-11-16 19:34:47,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:34:47,673 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 45 transitions. [2022-11-16 19:34:47,673 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) [2022-11-16 19:34:47,673 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2022-11-16 19:34:47,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-16 19:34:47,674 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:34:47,674 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:34:47,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 19:34:47,675 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)] === [2022-11-16 19:34:47,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:34:47,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1639642090, now seen corresponding path program 1 times [2022-11-16 19:34:47,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:34:47,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477681030] [2022-11-16 19:34:47,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:34:47,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:34:47,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:34:47,738 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 19:34:47,739 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:34:47,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477681030] [2022-11-16 19:34:47,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477681030] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:34:47,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:34:47,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 19:34:47,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538428819] [2022-11-16 19:34:47,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:34:47,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 19:34:47,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:34:47,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 19:34:47,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:34:47,742 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) [2022-11-16 19:34:47,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:34:47,794 INFO L93 Difference]: Finished difference Result 40 states and 45 transitions. [2022-11-16 19:34:47,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 19:34:47,795 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 [2022-11-16 19:34:47,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:34:47,796 INFO L225 Difference]: With dead ends: 40 [2022-11-16 19:34:47,796 INFO L226 Difference]: Without dead ends: 35 [2022-11-16 19:34:47,796 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 [2022-11-16 19:34:47,797 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 [2022-11-16 19:34:47,798 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] [2022-11-16 19:34:47,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-16 19:34:47,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-16 19:34:47,801 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) [2022-11-16 19:34:47,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2022-11-16 19:34:47,802 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 15 [2022-11-16 19:34:47,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:34:47,802 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2022-11-16 19:34:47,802 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) [2022-11-16 19:34:47,802 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2022-11-16 19:34:47,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-16 19:34:47,803 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:34:47,803 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:34:47,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 19:34:47,803 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)] === [2022-11-16 19:34:47,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:34:47,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1639640668, now seen corresponding path program 1 times [2022-11-16 19:34:47,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:34:47,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437570490] [2022-11-16 19:34:47,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:34:47,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:34:47,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:34:47,934 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:34:47,934 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:34:47,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437570490] [2022-11-16 19:34:47,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437570490] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 19:34:47,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175685802] [2022-11-16 19:34:47,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:34:47,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:34:47,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:34:47,936 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:34:47,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 19:34:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:34:48,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 19:34:48,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:34:48,168 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:34:48,168 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:34:48,247 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:34:48,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175685802] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:34:48,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2067629630] [2022-11-16 19:34:48,267 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-16 19:34:48,268 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 19:34:48,271 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 19:34:48,277 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 19:34:48,277 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 19:34:48,482 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-16 19:34:48,483 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 [2022-11-16 19:34:48,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:34:48,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:34:48,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:34:48,529 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 [2022-11-16 19:34:48,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:34:48,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:34:48,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:34:48,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:34:48,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:34:48,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:34:48,601 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-16 19:34:48,602 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 [2022-11-16 19:34:48,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:34:48,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:34:48,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:34:48,623 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 [2022-11-16 19:34:48,667 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 19:34:48,668 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 [2022-11-16 19:34:48,736 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 [2022-11-16 19:34:48,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:34:48,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:34:48,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:34:48,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:34:48,761 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 [2022-11-16 19:34:48,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:34:48,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:34:48,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:34:48,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:34:48,795 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 [2022-11-16 19:34:49,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:34:49,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:34:49,355 INFO L321 Elim1Store]: treesize reduction 55, result has 25.7 percent of original size [2022-11-16 19:34:49,355 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 [2022-11-16 19:34:49,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:34:49,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:34:49,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:34:50,677 INFO L321 Elim1Store]: treesize reduction 508, result has 25.6 percent of original size [2022-11-16 19:34:50,677 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 [2022-11-16 19:34:50,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:34:50,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:34:50,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:34:51,405 INFO L321 Elim1Store]: treesize reduction 508, result has 25.6 percent of original size [2022-11-16 19:34:51,405 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 [2022-11-16 19:34:51,597 INFO L321 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-11-16 19:34:51,598 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 [2022-11-16 19:34:51,744 INFO L321 Elim1Store]: treesize reduction 55, result has 25.7 percent of original size [2022-11-16 19:34:51,745 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 [2022-11-16 19:34:51,828 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-16 19:34:51,829 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 [2022-11-16 19:34:51,947 INFO L321 Elim1Store]: treesize reduction 53, result has 26.4 percent of original size [2022-11-16 19:34:51,947 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 [2022-11-16 19:34:52,034 INFO L321 Elim1Store]: treesize reduction 55, result has 25.7 percent of original size [2022-11-16 19:34:52,035 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 [2022-11-16 19:35:54,382 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:35:54,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:54,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:54,414 INFO L321 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2022-11-16 19:35:54,414 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 [2022-11-16 19:35:54,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:54,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:54,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:54,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:54,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:54,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:54,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:54,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:54,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:54,466 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:35:54,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:54,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:54,470 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:35:54,472 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:35:54,473 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:35:54,482 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-11-16 19:35:54,482 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 [2022-11-16 19:35:54,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:54,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:54,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:54,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:54,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:54,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:54,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:54,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:54,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:54,513 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:35:54,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:54,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:54,516 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:35:54,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:54,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:54,520 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:35:54,521 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:35:54,529 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-11-16 19:35:54,530 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 [2022-11-16 19:35:54,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:54,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:54,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:54,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:54,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:54,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:54,957 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 [2022-11-16 19:35:55,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,017 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 [2022-11-16 19:35:55,075 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 [2022-11-16 19:35:55,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,279 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 [2022-11-16 19:35:55,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,290 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 [2022-11-16 19:35:55,311 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 [2022-11-16 19:35:55,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,338 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 [2022-11-16 19:35:55,347 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 [2022-11-16 19:35:55,373 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 [2022-11-16 19:35:55,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,397 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 [2022-11-16 19:35:55,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,414 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 [2022-11-16 19:35:55,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,578 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 [2022-11-16 19:35:55,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,628 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 [2022-11-16 19:35:55,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,665 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:35:55,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,672 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:35:55,693 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-16 19:35:55,694 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 [2022-11-16 19:35:55,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,734 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:35:55,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,742 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:35:55,771 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-16 19:35:55,771 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 [2022-11-16 19:35:55,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,867 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:35:55,886 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-16 19:35:55,887 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 [2022-11-16 19:35:55,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:55,933 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:35:55,947 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-16 19:35:55,947 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 [2022-11-16 19:35:56,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,108 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 [2022-11-16 19:35:56,114 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 [2022-11-16 19:35:56,121 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 [2022-11-16 19:35:56,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,131 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 [2022-11-16 19:35:56,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,143 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 [2022-11-16 19:35:56,172 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 [2022-11-16 19:35:56,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,189 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 [2022-11-16 19:35:56,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,206 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 [2022-11-16 19:35:56,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,369 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:35:56,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,377 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:35:56,403 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-16 19:35:56,403 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 [2022-11-16 19:35:56,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,461 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:35:56,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,487 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:35:56,535 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-16 19:35:56,535 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 [2022-11-16 19:35:56,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,640 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:35:56,662 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-16 19:35:56,663 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 [2022-11-16 19:35:56,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,720 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:35:56,761 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-16 19:35:56,762 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 [2022-11-16 19:35:56,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,807 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 [2022-11-16 19:35:56,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:56,840 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 [2022-11-16 19:35:56,925 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 19:35:58,263 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 [2022-11-16 19:35:58,263 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 19:35:58,264 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 19:35:58,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2022-11-16 19:35:58,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982357194] [2022-11-16 19:35:58,264 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 19:35:58,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 19:35:58,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:35:58,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 19:35:58,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=415, Unknown=0, NotChecked=0, Total=506 [2022-11-16 19:35:58,265 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) [2022-11-16 19:35:58,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:35:58,602 INFO L93 Difference]: Finished difference Result 94 states and 104 transitions. [2022-11-16 19:35:58,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 19:35:58,603 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 [2022-11-16 19:35:58,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:35:58,604 INFO L225 Difference]: With dead ends: 94 [2022-11-16 19:35:58,604 INFO L226 Difference]: Without dead ends: 93 [2022-11-16 19:35:58,605 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 [2022-11-16 19:35:58,605 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 [2022-11-16 19:35:58,606 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] [2022-11-16 19:35:58,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-11-16 19:35:58,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 81. [2022-11-16 19:35:58,614 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) [2022-11-16 19:35:58,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 101 transitions. [2022-11-16 19:35:58,615 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 101 transitions. Word has length 15 [2022-11-16 19:35:58,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:35:58,616 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 101 transitions. [2022-11-16 19:35:58,616 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) [2022-11-16 19:35:58,616 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 101 transitions. [2022-11-16 19:35:58,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-16 19:35:58,617 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:35:58,617 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:35:58,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 19:35:58,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-16 19:35:58,823 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)] === [2022-11-16 19:35:58,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:35:58,824 INFO L85 PathProgramCache]: Analyzing trace with hash -2098476972, now seen corresponding path program 1 times [2022-11-16 19:35:58,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:35:58,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676802267] [2022-11-16 19:35:58,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:35:58,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:35:58,856 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 19:35:58,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [978406743] [2022-11-16 19:35:58,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:35:58,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:35:58,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:35:58,858 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:35:58,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 19:35:59,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:35:59,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 19:35:59,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:35:59,081 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:35:59,082 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:35:59,135 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:35:59,136 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:35:59,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676802267] [2022-11-16 19:35:59,136 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 19:35:59,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978406743] [2022-11-16 19:35:59,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978406743] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:35:59,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [568553940] [2022-11-16 19:35:59,141 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-16 19:35:59,141 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 19:35:59,141 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 19:35:59,142 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 19:35:59,142 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 19:35:59,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,216 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 [2022-11-16 19:35:59,250 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-16 19:35:59,250 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 [2022-11-16 19:35:59,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,265 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 [2022-11-16 19:35:59,302 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 19:35:59,302 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 [2022-11-16 19:35:59,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,344 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 [2022-11-16 19:35:59,379 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 [2022-11-16 19:35:59,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,396 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 [2022-11-16 19:35:59,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,418 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 [2022-11-16 19:35:59,570 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-16 19:35:59,570 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 [2022-11-16 19:35:59,585 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 [2022-11-16 19:35:59,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,689 INFO L321 Elim1Store]: treesize reduction 91, result has 22.2 percent of original size [2022-11-16 19:35:59,689 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 [2022-11-16 19:35:59,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,715 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:35:59,716 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:35:59,735 INFO L321 Elim1Store]: treesize reduction 50, result has 20.6 percent of original size [2022-11-16 19:35:59,736 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 [2022-11-16 19:35:59,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,771 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 [2022-11-16 19:35:59,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,848 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 [2022-11-16 19:35:59,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,925 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:35:59,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,933 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 19:35:59,934 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 [2022-11-16 19:35:59,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:35:59,979 INFO L321 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2022-11-16 19:35:59,980 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 [2022-11-16 19:36:00,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:00,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:00,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:00,006 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 [2022-11-16 19:36:00,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:00,373 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:00,430 INFO L321 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2022-11-16 19:36:00,431 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 [2022-11-16 19:36:00,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:00,460 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:00,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:00,463 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:00,464 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:00,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:00,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:00,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:00,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:00,772 INFO L321 Elim1Store]: treesize reduction 373, result has 16.6 percent of original size [2022-11-16 19:36:00,773 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 [2022-11-16 19:36:00,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:00,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:00,862 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:00,978 INFO L321 Elim1Store]: treesize reduction 230, result has 13.2 percent of original size [2022-11-16 19:36:00,978 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 [2022-11-16 19:36:01,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:01,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:01,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:01,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:01,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:01,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:01,032 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:01,041 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-16 19:36:01,041 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 [2022-11-16 19:36:01,236 INFO L321 Elim1Store]: treesize reduction 164, result has 18.4 percent of original size [2022-11-16 19:36:01,237 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 [2022-11-16 19:36:01,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:01,281 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:01,283 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:01,284 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:01,410 INFO L321 Elim1Store]: treesize reduction 354, result has 15.9 percent of original size [2022-11-16 19:36:01,410 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 [2022-11-16 19:36:01,480 INFO L321 Elim1Store]: treesize reduction 79, result has 10.2 percent of original size [2022-11-16 19:36:01,481 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 [2022-11-16 19:36:02,172 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:02,173 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:02,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:02,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:02,179 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:02,225 INFO L321 Elim1Store]: treesize reduction 90, result has 17.4 percent of original size [2022-11-16 19:36:02,226 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 [2022-11-16 19:36:02,259 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:02,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:02,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:02,474 INFO L321 Elim1Store]: treesize reduction 608, result has 10.2 percent of original size [2022-11-16 19:36:02,475 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 [2022-11-16 19:36:02,516 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:02,700 INFO L321 Elim1Store]: treesize reduction 362, result has 11.5 percent of original size [2022-11-16 19:36:02,701 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 [2022-11-16 19:36:02,769 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:02,868 INFO L321 Elim1Store]: treesize reduction 406, result has 11.5 percent of original size [2022-11-16 19:36:02,869 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 [2022-11-16 19:36:02,931 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:02,980 INFO L321 Elim1Store]: treesize reduction 266, result has 10.4 percent of original size [2022-11-16 19:36:02,981 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 [2022-11-16 19:36:03,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:03,890 INFO L321 Elim1Store]: treesize reduction 106, result has 32.1 percent of original size [2022-11-16 19:36:03,890 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 [2022-11-16 19:36:03,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:03,992 INFO L321 Elim1Store]: treesize reduction 88, result has 32.3 percent of original size [2022-11-16 19:36:03,993 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 [2022-11-16 19:36:04,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:04,075 INFO L321 Elim1Store]: treesize reduction 54, result has 46.5 percent of original size [2022-11-16 19:36:04,076 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 [2022-11-16 19:36:04,102 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 [2022-11-16 19:36:04,113 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 [2022-11-16 19:36:04,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:04,166 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 [2022-11-16 19:36:04,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:04,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:04,324 INFO L321 Elim1Store]: treesize reduction 172, result has 28.9 percent of original size [2022-11-16 19:36:04,324 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 [2022-11-16 19:36:04,395 INFO L321 Elim1Store]: treesize reduction 113, result has 14.4 percent of original size [2022-11-16 19:36:04,396 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 [2022-11-16 19:36:04,516 INFO L321 Elim1Store]: treesize reduction 108, result has 39.3 percent of original size [2022-11-16 19:36:04,517 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 [2022-11-16 19:36:06,131 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 [2022-11-16 19:36:06,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:06,317 INFO L321 Elim1Store]: treesize reduction 112, result has 32.5 percent of original size [2022-11-16 19:36:06,318 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 [2022-11-16 19:36:06,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:06,437 INFO L321 Elim1Store]: treesize reduction 66, result has 47.2 percent of original size [2022-11-16 19:36:06,437 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 [2022-11-16 19:36:06,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:06,519 INFO L321 Elim1Store]: treesize reduction 106, result has 32.1 percent of original size [2022-11-16 19:36:06,520 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 [2022-11-16 19:36:06,550 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 [2022-11-16 19:36:06,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:06,605 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 [2022-11-16 19:36:06,678 INFO L321 Elim1Store]: treesize reduction 117, result has 16.4 percent of original size [2022-11-16 19:36:06,678 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 [2022-11-16 19:36:06,801 INFO L321 Elim1Store]: treesize reduction 128, result has 35.4 percent of original size [2022-11-16 19:36:06,801 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 [2022-11-16 19:36:06,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:06,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:06,884 INFO L321 Elim1Store]: treesize reduction 89, result has 14.4 percent of original size [2022-11-16 19:36:06,885 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 [2022-11-16 19:36:06,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:06,985 INFO L321 Elim1Store]: treesize reduction 108, result has 26.0 percent of original size [2022-11-16 19:36:06,985 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 [2022-11-16 19:36:07,652 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 19:36:08,438 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 [2022-11-16 19:36:08,438 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 19:36:08,438 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 19:36:08,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2022-11-16 19:36:08,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318613889] [2022-11-16 19:36:08,439 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 19:36:08,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 19:36:08,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:36:08,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 19:36:08,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2022-11-16 19:36:08,440 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) [2022-11-16 19:36:08,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:36:08,669 INFO L93 Difference]: Finished difference Result 177 states and 245 transitions. [2022-11-16 19:36:08,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 19:36:08,673 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 [2022-11-16 19:36:08,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:36:08,675 INFO L225 Difference]: With dead ends: 177 [2022-11-16 19:36:08,676 INFO L226 Difference]: Without dead ends: 176 [2022-11-16 19:36:08,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 26 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=138, Invalid=512, Unknown=0, NotChecked=0, Total=650 [2022-11-16 19:36:08,677 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 [2022-11-16 19:36:08,677 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] [2022-11-16 19:36:08,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-11-16 19:36:08,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 147. [2022-11-16 19:36:08,690 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) [2022-11-16 19:36:08,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 209 transitions. [2022-11-16 19:36:08,691 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 209 transitions. Word has length 16 [2022-11-16 19:36:08,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:36:08,692 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 209 transitions. [2022-11-16 19:36:08,692 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) [2022-11-16 19:36:08,692 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 209 transitions. [2022-11-16 19:36:08,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-16 19:36:08,693 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:36:08,693 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:36:08,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-16 19:36:08,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:36:08,899 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)] === [2022-11-16 19:36:08,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:36:08,899 INFO L85 PathProgramCache]: Analyzing trace with hash -628276609, now seen corresponding path program 1 times [2022-11-16 19:36:08,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:36:08,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559698632] [2022-11-16 19:36:08,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:36:08,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:36:08,921 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 19:36:08,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1720438688] [2022-11-16 19:36:08,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:36:08,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:36:08,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:36:08,923 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:36:08,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 19:36:09,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:36:09,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 19:36:09,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:36:09,129 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:36:09,129 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 19:36:09,129 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:36:09,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559698632] [2022-11-16 19:36:09,129 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 19:36:09,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720438688] [2022-11-16 19:36:09,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720438688] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:36:09,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:36:09,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 19:36:09,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750012698] [2022-11-16 19:36:09,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:36:09,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 19:36:09,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:36:09,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 19:36:09,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 19:36:09,135 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) [2022-11-16 19:36:09,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:36:09,241 INFO L93 Difference]: Finished difference Result 151 states and 213 transitions. [2022-11-16 19:36:09,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 19:36:09,242 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 [2022-11-16 19:36:09,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:36:09,243 INFO L225 Difference]: With dead ends: 151 [2022-11-16 19:36:09,243 INFO L226 Difference]: Without dead ends: 150 [2022-11-16 19:36:09,243 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 [2022-11-16 19:36:09,244 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 [2022-11-16 19:36:09,244 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] [2022-11-16 19:36:09,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-16 19:36:09,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 146. [2022-11-16 19:36:09,265 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) [2022-11-16 19:36:09,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 197 transitions. [2022-11-16 19:36:09,271 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 197 transitions. Word has length 17 [2022-11-16 19:36:09,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:36:09,272 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 197 transitions. [2022-11-16 19:36:09,272 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) [2022-11-16 19:36:09,272 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 197 transitions. [2022-11-16 19:36:09,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-16 19:36:09,273 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:36:09,273 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:36:09,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 19:36:09,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:36:09,479 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)] === [2022-11-16 19:36:09,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:36:09,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1998263863, now seen corresponding path program 1 times [2022-11-16 19:36:09,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:36:09,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206888627] [2022-11-16 19:36:09,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:36:09,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:36:09,503 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 19:36:09,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1577251110] [2022-11-16 19:36:09,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:36:09,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:36:09,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:36:09,507 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:36:09,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 19:36:09,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:36:09,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-16 19:36:09,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:36:09,830 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:36:09,831 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:36:10,191 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:36:10,191 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:36:10,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206888627] [2022-11-16 19:36:10,192 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 19:36:10,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577251110] [2022-11-16 19:36:10,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577251110] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:36:10,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [97249975] [2022-11-16 19:36:10,195 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-16 19:36:10,195 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 19:36:10,195 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 19:36:10,195 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 19:36:10,196 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 19:36:10,273 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 19:36:10,274 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 [2022-11-16 19:36:10,285 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 [2022-11-16 19:36:10,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,299 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 [2022-11-16 19:36:10,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,330 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 [2022-11-16 19:36:10,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,344 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 [2022-11-16 19:36:10,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,378 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 [2022-11-16 19:36:10,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,396 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 [2022-11-16 19:36:10,410 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 [2022-11-16 19:36:10,549 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-16 19:36:10,549 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 [2022-11-16 19:36:10,564 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 [2022-11-16 19:36:10,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,679 INFO L321 Elim1Store]: treesize reduction 91, result has 22.2 percent of original size [2022-11-16 19:36:10,679 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 [2022-11-16 19:36:10,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,705 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:10,706 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:10,729 INFO L321 Elim1Store]: treesize reduction 54, result has 14.3 percent of original size [2022-11-16 19:36:10,730 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 [2022-11-16 19:36:10,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,765 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 [2022-11-16 19:36:10,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,827 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:10,836 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-16 19:36:10,837 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 [2022-11-16 19:36:10,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,859 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:10,891 INFO L321 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2022-11-16 19:36:10,892 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 [2022-11-16 19:36:10,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,914 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 [2022-11-16 19:36:10,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,948 INFO L321 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2022-11-16 19:36:10,949 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 [2022-11-16 19:36:10,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:10,981 INFO L321 Elim1Store]: treesize reduction 45, result has 13.5 percent of original size [2022-11-16 19:36:10,982 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 [2022-11-16 19:36:11,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:11,292 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:11,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:11,295 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:11,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:11,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:11,300 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:11,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:11,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:11,842 INFO L321 Elim1Store]: treesize reduction 373, result has 16.6 percent of original size [2022-11-16 19:36:11,843 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 [2022-11-16 19:36:11,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:11,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:11,949 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:11,995 INFO L321 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2022-11-16 19:36:11,995 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 [2022-11-16 19:36:12,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:12,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:12,074 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:12,177 INFO L321 Elim1Store]: treesize reduction 230, result has 13.2 percent of original size [2022-11-16 19:36:12,178 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 [2022-11-16 19:36:12,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:12,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:12,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:12,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:12,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:12,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:12,246 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:12,256 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-16 19:36:12,257 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 [2022-11-16 19:36:12,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:12,289 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:12,291 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:12,292 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:12,498 INFO L321 Elim1Store]: treesize reduction 585, result has 10.7 percent of original size [2022-11-16 19:36:12,498 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 [2022-11-16 19:36:12,654 INFO L321 Elim1Store]: treesize reduction 160, result has 20.4 percent of original size [2022-11-16 19:36:12,655 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 [2022-11-16 19:36:12,719 INFO L321 Elim1Store]: treesize reduction 67, result has 6.9 percent of original size [2022-11-16 19:36:12,719 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 [2022-11-16 19:36:13,415 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:13,417 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:13,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:13,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:13,422 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:13,474 INFO L321 Elim1Store]: treesize reduction 80, result has 17.5 percent of original size [2022-11-16 19:36:13,475 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 [2022-11-16 19:36:13,503 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:13,744 INFO L321 Elim1Store]: treesize reduction 608, result has 10.2 percent of original size [2022-11-16 19:36:13,744 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 [2022-11-16 19:36:13,779 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:13,963 INFO L321 Elim1Store]: treesize reduction 362, result has 11.5 percent of original size [2022-11-16 19:36:13,964 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 [2022-11-16 19:36:14,013 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:14,159 INFO L321 Elim1Store]: treesize reduction 504, result has 10.2 percent of original size [2022-11-16 19:36:14,160 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 [2022-11-16 19:36:14,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:14,211 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:14,263 INFO L321 Elim1Store]: treesize reduction 198, result has 13.5 percent of original size [2022-11-16 19:36:14,264 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 [2022-11-16 19:36:15,113 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 [2022-11-16 19:36:15,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:15,284 INFO L321 Elim1Store]: treesize reduction 106, result has 32.1 percent of original size [2022-11-16 19:36:15,284 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 [2022-11-16 19:36:15,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:15,403 INFO L321 Elim1Store]: treesize reduction 88, result has 32.3 percent of original size [2022-11-16 19:36:15,404 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 [2022-11-16 19:36:15,455 INFO L321 Elim1Store]: treesize reduction 33, result has 38.9 percent of original size [2022-11-16 19:36:15,455 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 [2022-11-16 19:36:15,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:15,468 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 [2022-11-16 19:36:15,496 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 [2022-11-16 19:36:15,546 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 [2022-11-16 19:36:15,710 INFO L321 Elim1Store]: treesize reduction 172, result has 28.9 percent of original size [2022-11-16 19:36:15,711 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 [2022-11-16 19:36:15,785 INFO L321 Elim1Store]: treesize reduction 113, result has 14.4 percent of original size [2022-11-16 19:36:15,786 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 [2022-11-16 19:36:15,901 INFO L321 Elim1Store]: treesize reduction 112, result has 37.1 percent of original size [2022-11-16 19:36:15,901 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 [2022-11-16 19:36:17,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:17,589 INFO L321 Elim1Store]: treesize reduction 106, result has 32.1 percent of original size [2022-11-16 19:36:17,590 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 [2022-11-16 19:36:17,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:17,677 INFO L321 Elim1Store]: treesize reduction 88, result has 32.3 percent of original size [2022-11-16 19:36:17,677 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 [2022-11-16 19:36:17,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:17,757 INFO L321 Elim1Store]: treesize reduction 54, result has 46.5 percent of original size [2022-11-16 19:36:17,757 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 [2022-11-16 19:36:17,787 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 [2022-11-16 19:36:17,795 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 [2022-11-16 19:36:17,856 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 [2022-11-16 19:36:17,974 INFO L321 Elim1Store]: treesize reduction 186, result has 23.1 percent of original size [2022-11-16 19:36:17,975 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 [2022-11-16 19:36:18,042 INFO L321 Elim1Store]: treesize reduction 113, result has 14.4 percent of original size [2022-11-16 19:36:18,042 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 [2022-11-16 19:36:18,143 INFO L321 Elim1Store]: treesize reduction 111, result has 37.6 percent of original size [2022-11-16 19:36:18,143 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 [2022-11-16 19:36:19,031 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 19:36:19,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [97249975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:36:19,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-16 19:36:19,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7, 7] total 22 [2022-11-16 19:36:19,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258556122] [2022-11-16 19:36:19,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:36:19,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 19:36:19,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:36:19,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 19:36:19,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-16 19:36:19,956 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) [2022-11-16 19:36:20,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:36:20,859 INFO L93 Difference]: Finished difference Result 150 states and 198 transitions. [2022-11-16 19:36:20,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 19:36:20,860 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 [2022-11-16 19:36:20,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:36:20,861 INFO L225 Difference]: With dead ends: 150 [2022-11-16 19:36:20,861 INFO L226 Difference]: Without dead ends: 148 [2022-11-16 19:36:20,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 26 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=153, Invalid=603, Unknown=0, NotChecked=0, Total=756 [2022-11-16 19:36:20,862 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 17 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 19:36:20,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 13 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 19:36:20,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2022-11-16 19:36:20,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 146. [2022-11-16 19:36:20,873 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) [2022-11-16 19:36:20,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 191 transitions. [2022-11-16 19:36:20,874 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 191 transitions. Word has length 18 [2022-11-16 19:36:20,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:36:20,874 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 191 transitions. [2022-11-16 19:36:20,875 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) [2022-11-16 19:36:20,875 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 191 transitions. [2022-11-16 19:36:20,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-16 19:36:20,875 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:36:20,876 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:36:20,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 19:36:21,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-16 19:36:21,083 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)] === [2022-11-16 19:36:21,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:36:21,083 INFO L85 PathProgramCache]: Analyzing trace with hash 816655333, now seen corresponding path program 1 times [2022-11-16 19:36:21,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:36:21,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465723291] [2022-11-16 19:36:21,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:36:21,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:36:21,121 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 19:36:21,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1661814245] [2022-11-16 19:36:21,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:36:21,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:36:21,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:36:21,123 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:36:21,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 19:36:21,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:36:21,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 19:36:21,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:36:21,363 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:36:21,364 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 19:36:21,364 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:36:21,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465723291] [2022-11-16 19:36:21,364 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 19:36:21,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661814245] [2022-11-16 19:36:21,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1661814245] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:36:21,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:36:21,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 19:36:21,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825806619] [2022-11-16 19:36:21,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:36:21,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 19:36:21,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:36:21,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 19:36:21,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 19:36:21,366 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) [2022-11-16 19:36:21,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:36:21,555 INFO L93 Difference]: Finished difference Result 172 states and 215 transitions. [2022-11-16 19:36:21,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 19:36:21,555 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 [2022-11-16 19:36:21,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:36:21,557 INFO L225 Difference]: With dead ends: 172 [2022-11-16 19:36:21,557 INFO L226 Difference]: Without dead ends: 171 [2022-11-16 19:36:21,557 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 [2022-11-16 19:36:21,558 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, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 19:36:21,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 21 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 19:36:21,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-11-16 19:36:21,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 146. [2022-11-16 19:36:21,568 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) [2022-11-16 19:36:21,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 188 transitions. [2022-11-16 19:36:21,569 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 188 transitions. Word has length 21 [2022-11-16 19:36:21,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:36:21,569 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 188 transitions. [2022-11-16 19:36:21,570 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) [2022-11-16 19:36:21,570 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 188 transitions. [2022-11-16 19:36:21,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 19:36:21,570 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:36:21,571 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:36:21,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-16 19:36:21,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-16 19:36:21,778 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)] === [2022-11-16 19:36:21,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:36:21,778 INFO L85 PathProgramCache]: Analyzing trace with hash -453488359, now seen corresponding path program 1 times [2022-11-16 19:36:21,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:36:21,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288742920] [2022-11-16 19:36:21,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:36:21,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:36:21,805 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 19:36:21,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1633359003] [2022-11-16 19:36:21,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:36:21,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:36:21,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:36:21,807 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:36:21,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 19:36:22,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:36:22,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 19:36:22,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:36:22,238 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:36:22,239 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 19:36:22,239 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:36:22,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288742920] [2022-11-16 19:36:22,239 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 19:36:22,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633359003] [2022-11-16 19:36:22,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633359003] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:36:22,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:36:22,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 19:36:22,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832377048] [2022-11-16 19:36:22,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:36:22,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 19:36:22,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:36:22,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 19:36:22,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-16 19:36:22,241 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) [2022-11-16 19:36:22,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:36:22,636 INFO L93 Difference]: Finished difference Result 150 states and 191 transitions. [2022-11-16 19:36:22,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 19:36:22,637 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 [2022-11-16 19:36:22,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:36:22,638 INFO L225 Difference]: With dead ends: 150 [2022-11-16 19:36:22,638 INFO L226 Difference]: Without dead ends: 149 [2022-11-16 19:36:22,638 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 [2022-11-16 19:36:22,639 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 [2022-11-16 19:36:22,639 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] [2022-11-16 19:36:22,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-11-16 19:36:22,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 145. [2022-11-16 19:36:22,649 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) [2022-11-16 19:36:22,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 176 transitions. [2022-11-16 19:36:22,650 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 176 transitions. Word has length 22 [2022-11-16 19:36:22,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:36:22,650 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 176 transitions. [2022-11-16 19:36:22,651 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) [2022-11-16 19:36:22,651 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 176 transitions. [2022-11-16 19:36:22,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-16 19:36:22,651 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:36:22,652 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-16 19:36:22,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-16 19:36:22,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:36:22,860 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)] === [2022-11-16 19:36:22,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:36:22,860 INFO L85 PathProgramCache]: Analyzing trace with hash -497444369, now seen corresponding path program 1 times [2022-11-16 19:36:22,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:36:22,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847873523] [2022-11-16 19:36:22,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:36:22,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:36:22,907 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 19:36:22,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2126714613] [2022-11-16 19:36:22,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:36:22,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:36:22,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:36:22,909 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:36:22,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd41aad4-8e93-40a5-b204-f622c51d6f76/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-16 19:36:23,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:36:23,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-16 19:36:23,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:36:23,396 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:36:23,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:36:24,280 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:36:24,280 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:36:24,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847873523] [2022-11-16 19:36:24,280 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 19:36:24,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126714613] [2022-11-16 19:36:24,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2126714613] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:36:24,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1196577932] [2022-11-16 19:36:24,283 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-16 19:36:24,284 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 19:36:24,284 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 19:36:24,284 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 19:36:24,284 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 19:36:24,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:24,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:24,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:24,352 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 [2022-11-16 19:36:24,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:24,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:24,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:24,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:24,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:24,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:24,397 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-16 19:36:24,397 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 [2022-11-16 19:36:24,436 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-16 19:36:24,437 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 [2022-11-16 19:36:24,499 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 19:36:24,499 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 [2022-11-16 19:36:24,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:24,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:24,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:24,516 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 [2022-11-16 19:36:24,548 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 [2022-11-16 19:36:24,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:24,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:24,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:24,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:24,566 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 [2022-11-16 19:36:24,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:24,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:24,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:24,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:24,585 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 [2022-11-16 19:36:24,723 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 19:36:24,724 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 [2022-11-16 19:36:24,790 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-16 19:36:24,790 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 [2022-11-16 19:36:24,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:24,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:24,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:24,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:24,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:24,818 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:24,819 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:24,865 INFO L321 Elim1Store]: treesize reduction 50, result has 20.6 percent of original size [2022-11-16 19:36:24,865 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 [2022-11-16 19:36:24,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:24,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:24,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:24,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:24,954 INFO L321 Elim1Store]: treesize reduction 91, result has 22.2 percent of original size [2022-11-16 19:36:24,955 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 [2022-11-16 19:36:24,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:24,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:24,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:24,995 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 [2022-11-16 19:36:25,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:25,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:25,306 INFO L321 Elim1Store]: treesize reduction 352, result has 11.8 percent of original size [2022-11-16 19:36:25,307 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 [2022-11-16 19:36:25,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:25,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:25,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:25,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:25,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:25,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:25,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:25,340 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:25,350 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-16 19:36:25,351 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 [2022-11-16 19:36:25,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:25,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:25,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:25,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:25,381 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:25,409 INFO L321 Elim1Store]: treesize reduction 39, result has 25.0 percent of original size [2022-11-16 19:36:25,409 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 [2022-11-16 19:36:25,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:25,433 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 [2022-11-16 19:36:25,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:25,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:25,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:25,459 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 19:36:25,460 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 [2022-11-16 19:36:25,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:25,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:25,922 INFO L321 Elim1Store]: treesize reduction 154, result has 14.9 percent of original size [2022-11-16 19:36:25,922 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 [2022-11-16 19:36:25,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:25,946 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:25,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:25,948 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:25,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:25,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:25,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:25,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:26,367 INFO L321 Elim1Store]: treesize reduction 777, result has 9.3 percent of original size [2022-11-16 19:36:26,370 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 [2022-11-16 19:36:26,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:26,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:26,555 INFO L321 Elim1Store]: treesize reduction 312, result has 12.1 percent of original size [2022-11-16 19:36:26,555 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 [2022-11-16 19:36:26,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:26,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:26,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:26,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:26,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:26,636 INFO L321 Elim1Store]: treesize reduction 137, result has 12.2 percent of original size [2022-11-16 19:36:26,637 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 [2022-11-16 19:36:26,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:26,663 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:26,664 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:26,829 INFO L321 Elim1Store]: treesize reduction 666, result has 9.1 percent of original size [2022-11-16 19:36:26,830 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 [2022-11-16 19:36:26,980 INFO L321 Elim1Store]: treesize reduction 160, result has 20.4 percent of original size [2022-11-16 19:36:26,980 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 [2022-11-16 19:36:27,032 INFO L321 Elim1Store]: treesize reduction 67, result has 6.9 percent of original size [2022-11-16 19:36:27,032 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 [2022-11-16 19:36:27,842 INFO L321 Elim1Store]: treesize reduction 714, result has 9.5 percent of original size [2022-11-16 19:36:27,842 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 [2022-11-16 19:36:27,880 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:27,881 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:27,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:27,977 INFO L321 Elim1Store]: treesize reduction 202, result has 15.1 percent of original size [2022-11-16 19:36:27,978 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 [2022-11-16 19:36:28,181 INFO L321 Elim1Store]: treesize reduction 674, result has 9.5 percent of original size [2022-11-16 19:36:28,182 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 [2022-11-16 19:36:28,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:28,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:28,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:28,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:28,223 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:28,225 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:28,340 INFO L321 Elim1Store]: treesize reduction 342, result has 11.9 percent of original size [2022-11-16 19:36:28,341 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 [2022-11-16 19:36:28,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:28,425 INFO L321 Elim1Store]: treesize reduction 276, result has 10.1 percent of original size [2022-11-16 19:36:28,426 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 [2022-11-16 19:36:29,027 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 [2022-11-16 19:36:29,036 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 [2022-11-16 19:36:29,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:29,185 INFO L321 Elim1Store]: treesize reduction 106, result has 32.1 percent of original size [2022-11-16 19:36:29,185 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 [2022-11-16 19:36:29,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:29,278 INFO L321 Elim1Store]: treesize reduction 88, result has 32.3 percent of original size [2022-11-16 19:36:29,279 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 [2022-11-16 19:36:29,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:29,342 INFO L321 Elim1Store]: treesize reduction 54, result has 46.5 percent of original size [2022-11-16 19:36:29,342 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 [2022-11-16 19:36:29,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:29,395 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 [2022-11-16 19:36:29,468 INFO L321 Elim1Store]: treesize reduction 117, result has 16.4 percent of original size [2022-11-16 19:36:29,468 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 [2022-11-16 19:36:29,620 INFO L321 Elim1Store]: treesize reduction 116, result has 41.4 percent of original size [2022-11-16 19:36:29,621 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 [2022-11-16 19:36:29,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:29,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:29,691 INFO L321 Elim1Store]: treesize reduction 89, result has 14.4 percent of original size [2022-11-16 19:36:29,691 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 [2022-11-16 19:36:29,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:29,792 INFO L321 Elim1Store]: treesize reduction 100, result has 31.5 percent of original size [2022-11-16 19:36:29,792 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 [2022-11-16 19:36:31,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:31,789 INFO L321 Elim1Store]: treesize reduction 112, result has 32.5 percent of original size [2022-11-16 19:36:31,789 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 [2022-11-16 19:36:31,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:31,889 INFO L321 Elim1Store]: treesize reduction 66, result has 47.2 percent of original size [2022-11-16 19:36:31,889 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 [2022-11-16 19:36:31,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:31,959 INFO L321 Elim1Store]: treesize reduction 106, result has 32.1 percent of original size [2022-11-16 19:36:31,959 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 [2022-11-16 19:36:31,996 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 [2022-11-16 19:36:32,005 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 [2022-11-16 19:36:32,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:32,050 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 [2022-11-16 19:36:32,155 INFO L321 Elim1Store]: treesize reduction 137, result has 14.4 percent of original size [2022-11-16 19:36:32,156 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 [2022-11-16 19:36:32,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:32,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:32,243 INFO L321 Elim1Store]: treesize reduction 121, result has 17.1 percent of original size [2022-11-16 19:36:32,243 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 [2022-11-16 19:36:32,371 INFO L321 Elim1Store]: treesize reduction 144, result has 33.9 percent of original size [2022-11-16 19:36:32,371 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 [2022-11-16 19:36:32,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:32,475 INFO L321 Elim1Store]: treesize reduction 108, result has 26.0 percent of original size [2022-11-16 19:36:32,476 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 [2022-11-16 19:36:33,678 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:36:33,680 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:36:33,682 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:36:33,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:33,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:33,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:33,739 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 [2022-11-16 19:36:33,746 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 [2022-11-16 19:36:33,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:33,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:33,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:33,757 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 [2022-11-16 19:36:33,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:33,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:33,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:33,768 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 [2022-11-16 19:36:33,777 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 [2022-11-16 19:36:33,797 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 [2022-11-16 19:36:33,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:33,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:33,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:33,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:33,829 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 [2022-11-16 19:36:33,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:33,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:33,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:33,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:33,846 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 [2022-11-16 19:36:33,920 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 19:36:33,921 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 [2022-11-16 19:36:33,937 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 [2022-11-16 19:36:33,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:33,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:33,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:33,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:33,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:33,959 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:33,960 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:33,999 INFO L321 Elim1Store]: treesize reduction 54, result has 14.3 percent of original size [2022-11-16 19:36:33,999 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 [2022-11-16 19:36:34,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:34,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:34,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:34,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:34,072 INFO L321 Elim1Store]: treesize reduction 91, result has 22.2 percent of original size [2022-11-16 19:36:34,072 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 [2022-11-16 19:36:34,097 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 [2022-11-16 19:36:34,108 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 [2022-11-16 19:36:34,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:34,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:34,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:34,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:34,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:34,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:34,154 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:34,165 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-16 19:36:34,166 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 [2022-11-16 19:36:34,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:34,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:34,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:34,189 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:34,221 INFO L321 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2022-11-16 19:36:34,221 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 [2022-11-16 19:36:34,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:34,237 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 [2022-11-16 19:36:34,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:34,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:34,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:34,276 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 [2022-11-16 19:36:34,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:34,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:34,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:34,293 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 [2022-11-16 19:36:34,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:34,431 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:34,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:34,433 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:34,434 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:34,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:34,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:34,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:34,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:34,954 INFO L321 Elim1Store]: treesize reduction 393, result has 15.8 percent of original size [2022-11-16 19:36:34,955 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 [2022-11-16 19:36:35,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:35,008 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:35,017 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 19:36:35,017 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 [2022-11-16 19:36:35,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:35,047 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:35,049 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:35,051 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:35,210 INFO L321 Elim1Store]: treesize reduction 396, result has 13.0 percent of original size [2022-11-16 19:36:35,211 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 [2022-11-16 19:36:35,321 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-16 19:36:35,322 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 [2022-11-16 19:36:35,369 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-16 19:36:35,370 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 [2022-11-16 19:36:35,401 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:35,444 INFO L321 Elim1Store]: treesize reduction 122, result has 12.2 percent of original size [2022-11-16 19:36:35,445 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 [2022-11-16 19:36:35,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:35,467 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:35,475 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 19:36:35,475 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 [2022-11-16 19:36:35,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:35,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:35,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:35,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:35,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:35,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:35,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:35,732 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:35,740 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:35,804 INFO L321 Elim1Store]: treesize reduction 193, result has 6.3 percent of original size [2022-11-16 19:36:35,805 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 [2022-11-16 19:36:35,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:35,824 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:35,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:35,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:35,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:35,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:35,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:35,832 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:35,854 INFO L321 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2022-11-16 19:36:35,855 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 [2022-11-16 19:36:35,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:35,875 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:35,876 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:35,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:35,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:35,940 INFO L321 Elim1Store]: treesize reduction 80, result has 15.8 percent of original size [2022-11-16 19:36:35,940 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 [2022-11-16 19:36:35,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:35,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:35,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:35,962 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:35,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:35,966 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:36,047 INFO L321 Elim1Store]: treesize reduction 212, result has 15.9 percent of original size [2022-11-16 19:36:36,047 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 [2022-11-16 19:36:36,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:36,068 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:36,095 INFO L321 Elim1Store]: treesize reduction 94, result has 21.0 percent of original size [2022-11-16 19:36:36,095 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 [2022-11-16 19:36:36,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:36,402 INFO L321 Elim1Store]: treesize reduction 106, result has 32.1 percent of original size [2022-11-16 19:36:36,402 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 [2022-11-16 19:36:36,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:36,493 INFO L321 Elim1Store]: treesize reduction 88, result has 32.3 percent of original size [2022-11-16 19:36:36,494 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 [2022-11-16 19:36:36,531 INFO L321 Elim1Store]: treesize reduction 33, result has 38.9 percent of original size [2022-11-16 19:36:36,531 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 [2022-11-16 19:36:36,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:36,540 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 [2022-11-16 19:36:36,570 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 [2022-11-16 19:36:36,580 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 [2022-11-16 19:36:36,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:36,619 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 [2022-11-16 19:36:36,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:36,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:36,792 INFO L321 Elim1Store]: treesize reduction 186, result has 23.1 percent of original size [2022-11-16 19:36:36,792 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 [2022-11-16 19:36:36,893 INFO L321 Elim1Store]: treesize reduction 113, result has 14.4 percent of original size [2022-11-16 19:36:36,893 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 [2022-11-16 19:36:37,036 INFO L321 Elim1Store]: treesize reduction 112, result has 37.1 percent of original size [2022-11-16 19:36:37,036 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 [2022-11-16 19:36:38,070 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 [2022-11-16 19:36:38,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:38,221 INFO L321 Elim1Store]: treesize reduction 106, result has 32.1 percent of original size [2022-11-16 19:36:38,221 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 [2022-11-16 19:36:38,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:38,311 INFO L321 Elim1Store]: treesize reduction 88, result has 32.3 percent of original size [2022-11-16 19:36:38,311 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 [2022-11-16 19:36:38,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:38,373 INFO L321 Elim1Store]: treesize reduction 54, result has 46.5 percent of original size [2022-11-16 19:36:38,373 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 [2022-11-16 19:36:38,397 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 [2022-11-16 19:36:38,439 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 [2022-11-16 19:36:38,615 INFO L321 Elim1Store]: treesize reduction 186, result has 23.1 percent of original size [2022-11-16 19:36:38,615 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 [2022-11-16 19:36:38,749 INFO L321 Elim1Store]: treesize reduction 113, result has 14.4 percent of original size [2022-11-16 19:36:38,750 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 [2022-11-16 19:36:38,888 INFO L321 Elim1Store]: treesize reduction 112, result has 37.1 percent of original size [2022-11-16 19:36:38,888 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 [2022-11-16 19:36:40,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:40,120 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 [2022-11-16 19:36:40,129 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:40,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:40,131 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 [2022-11-16 19:36:40,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:40,147 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 [2022-11-16 19:36:40,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:40,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:40,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:40,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:40,262 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:40,432 INFO L321 Elim1Store]: treesize reduction 230, result has 32.0 percent of original size [2022-11-16 19:36:40,432 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 [2022-11-16 19:36:40,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:40,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:40,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:40,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:40,450 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:40,553 INFO L321 Elim1Store]: treesize reduction 134, result has 34.3 percent of original size [2022-11-16 19:36:40,553 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 [2022-11-16 19:36:50,356 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 [2022-11-16 19:36:50,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:50,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:50,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:50,462 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 [2022-11-16 19:36:50,500 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 [2022-11-16 19:36:51,468 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 [2022-11-16 19:36:51,475 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 [2022-11-16 19:36:51,483 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 [2022-11-16 19:36:51,577 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 [2022-11-16 19:36:51,584 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 [2022-11-16 19:36:51,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:51,608 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:51,793 INFO L321 Elim1Store]: treesize reduction 106, result has 32.1 percent of original size [2022-11-16 19:36:51,794 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 [2022-11-16 19:36:51,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:51,808 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:51,922 INFO L321 Elim1Store]: treesize reduction 88, result has 32.3 percent of original size [2022-11-16 19:36:51,922 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 [2022-11-16 19:36:51,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:51,951 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 [2022-11-16 19:36:51,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:52,014 INFO L321 Elim1Store]: treesize reduction 56, result has 46.7 percent of original size [2022-11-16 19:36:52,014 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 [2022-11-16 19:36:52,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:52,109 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:52,148 INFO L321 Elim1Store]: treesize reduction 17, result has 43.3 percent of original size [2022-11-16 19:36:52,149 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 [2022-11-16 19:36:52,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:52,201 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:52,328 INFO L321 Elim1Store]: treesize reduction 121, result has 17.1 percent of original size [2022-11-16 19:36:52,328 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 [2022-11-16 19:36:52,351 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:52,564 INFO L321 Elim1Store]: treesize reduction 148, result has 22.9 percent of original size [2022-11-16 19:36:52,564 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 [2022-11-16 19:36:52,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:52,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:52,611 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:52,661 INFO L321 Elim1Store]: treesize reduction 133, result has 12.5 percent of original size [2022-11-16 19:36:52,661 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 [2022-11-16 19:36:52,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:36:52,686 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:36:52,783 INFO L321 Elim1Store]: treesize reduction 132, result has 33.3 percent of original size [2022-11-16 19:36:52,784 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 [2022-11-16 19:37:07,550 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 [2022-11-16 19:37:07,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:37:07,559 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:37:07,729 INFO L321 Elim1Store]: treesize reduction 106, result has 32.1 percent of original size [2022-11-16 19:37:07,729 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 [2022-11-16 19:37:07,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:37:07,741 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:37:07,824 INFO L321 Elim1Store]: treesize reduction 88, result has 32.3 percent of original size [2022-11-16 19:37:07,824 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 [2022-11-16 19:37:07,867 INFO L321 Elim1Store]: treesize reduction 33, result has 38.9 percent of original size [2022-11-16 19:37:07,867 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 [2022-11-16 19:37:07,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:37:07,876 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 [2022-11-16 19:37:07,907 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 [2022-11-16 19:37:07,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:37:07,954 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 [2022-11-16 19:37:07,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:37:07,996 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:37:08,401 INFO L321 Elim1Store]: treesize reduction 209, result has 29.9 percent of original size [2022-11-16 19:37:08,402 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 [2022-11-16 19:37:08,433 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:37:08,527 INFO L321 Elim1Store]: treesize reduction 113, result has 14.4 percent of original size [2022-11-16 19:37:08,528 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 [2022-11-16 19:37:08,548 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:37:08,700 INFO L321 Elim1Store]: treesize reduction 108, result has 39.3 percent of original size [2022-11-16 19:37:08,700 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 [2022-11-16 19:37:21,387 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 [2022-11-16 19:37:21,393 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 [2022-11-16 19:37:21,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:37:21,402 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:37:21,530 INFO L321 Elim1Store]: treesize reduction 106, result has 32.1 percent of original size [2022-11-16 19:37:21,530 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 [2022-11-16 19:37:21,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:37:21,540 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:37:21,621 INFO L321 Elim1Store]: treesize reduction 88, result has 32.3 percent of original size [2022-11-16 19:37:21,621 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 [2022-11-16 19:37:21,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:37:21,702 INFO L321 Elim1Store]: treesize reduction 54, result has 46.5 percent of original size [2022-11-16 19:37:21,703 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 [2022-11-16 19:37:21,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:37:21,765 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 [2022-11-16 19:37:21,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:37:21,808 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:37:21,962 INFO L321 Elim1Store]: treesize reduction 154, result has 14.0 percent of original size [2022-11-16 19:37:21,963 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 [2022-11-16 19:37:21,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:37:21,993 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:37:22,264 INFO L321 Elim1Store]: treesize reduction 187, result has 24.6 percent of original size [2022-11-16 19:37:22,265 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 [2022-11-16 19:37:22,287 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:37:22,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:37:22,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:37:22,384 INFO L321 Elim1Store]: treesize reduction 113, result has 14.4 percent of original size [2022-11-16 19:37:22,385 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 [2022-11-16 19:37:22,404 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:37:22,552 INFO L321 Elim1Store]: treesize reduction 107, result has 39.9 percent of original size [2022-11-16 19:37:22,553 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 [2022-11-16 19:37:25,385 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-16 19:37:25,386 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 [2022-11-16 19:37:25,413 INFO L321 Elim1Store]: treesize reduction 49, result has 23.4 percent of original size [2022-11-16 19:37:25,413 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 [2022-11-16 19:37:25,447 INFO L321 Elim1Store]: treesize reduction 51, result has 45.7 percent of original size [2022-11-16 19:37:25,447 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 [2022-11-16 19:37:25,513 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 [2022-11-16 19:37:25,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:37:25,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:37:25,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:37:25,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:37:25,527 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:37:25,680 INFO L321 Elim1Store]: treesize reduction 230, result has 32.0 percent of original size [2022-11-16 19:37:25,680 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 [2022-11-16 19:37:25,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:37:25,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:37:25,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:37:25,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:37:25,699 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:37:25,799 INFO L321 Elim1Store]: treesize reduction 134, result has 34.3 percent of original size [2022-11-16 19:37:25,799 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 [2022-11-16 19:37:26,542 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 [2022-11-16 19:37:26,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:37:26,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:37:26,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:37:26,594 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 [2022-11-16 19:37:26,968 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 [2022-11-16 19:37:26,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:37:26,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:37:26,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:37:26,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:37:28,413 INFO L321 Elim1Store]: treesize reduction 1482, result has 13.2 percent of original size [2022-11-16 19:37:28,413 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 [2022-11-16 19:37:28,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:37:28,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:37:28,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:37:28,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:37:29,712 INFO L321 Elim1Store]: treesize reduction 1996, result has 11.6 percent of original size [2022-11-16 19:37:29,713 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 [2022-11-16 19:38:21,662 WARN L233 SmtUtils]: Spent 5.31s on a formula simplification that was a NOOP. DAG size: 1169 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 19:39:06,495 WARN L233 SmtUtils]: Spent 6.56s 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) [2022-11-16 19:42:10,278 WARN L233 SmtUtils]: Spent 55.04s 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) [2022-11-16 19:42:30,921 WARN L233 SmtUtils]: Spent 6.98s 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) [2022-11-16 19:44:03,428 WARN L233 SmtUtils]: Spent 11.76s 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) [2022-11-16 19:44:20,624 WARN L233 SmtUtils]: Spent 5.63s 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) [2022-11-16 19:44:40,571 WARN L233 SmtUtils]: Spent 11.06s 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) [2022-11-16 19:46:16,408 WARN L233 SmtUtils]: Spent 5.45s 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) [2022-11-16 19:49:16,031 WARN L233 SmtUtils]: Spent 8.53s 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)