./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V --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 b9bf0bad0cbe69b5d3c479fc9571d5ea3a755c149f856a4942bf9e49854dfec3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:46:03,497 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:46:03,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:46:03,540 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:46:03,541 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:46:03,543 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:46:03,545 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:46:03,548 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:46:03,550 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:46:03,552 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:46:03,554 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:46:03,555 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:46:03,556 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:46:03,558 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:46:03,560 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:46:03,562 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:46:03,564 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:46:03,565 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:46:03,568 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:46:03,571 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:46:03,574 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:46:03,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:46:03,578 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:46:03,579 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:46:03,584 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:46:03,584 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:46:03,585 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:46:03,587 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:46:03,588 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:46:03,589 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:46:03,590 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:46:03,591 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:46:03,592 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:46:03,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:46:03,595 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:46:03,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:46:03,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:46:03,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:46:03,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:46:03,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:46:03,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:46:03,603 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-23 02:46:03,634 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:46:03,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:46:03,635 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:46:03,635 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:46:03,636 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:46:03,636 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:46:03,636 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:46:03,637 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:46:03,637 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:46:03,637 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:46:03,637 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:46:03,638 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:46:03,638 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:46:03,638 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:46:03,639 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:46:03,639 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:46:03,639 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:46:03,639 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:46:03,640 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:46:03,641 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:46:03,641 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 02:46:03,641 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:46:03,641 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:46:03,642 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:46:03,642 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:46:03,642 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:46:03,642 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:46:03,643 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-23 02:46:03,643 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:46:03,643 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:46:03,644 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:46:03,644 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:46:03,644 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:46:03,644 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:46:03,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:46:03,645 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:46:03,645 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:46:03,646 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:46:03,646 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:46:03,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:46:03,646 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:46:03,647 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:46:03,647 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:46:03,647 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9bf0bad0cbe69b5d3c479fc9571d5ea3a755c149f856a4942bf9e49854dfec3 [2021-11-23 02:46:03,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:46:03,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:46:03,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:46:03,987 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:46:03,988 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:46:03,989 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-1.i [2021-11-23 02:46:04,120 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/data/bf68775e3/8dcbcc64b9814f2796fd653741df446c/FLAG063c5e603 [2021-11-23 02:46:04,783 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:46:04,785 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-1.i [2021-11-23 02:46:04,804 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/data/bf68775e3/8dcbcc64b9814f2796fd653741df446c/FLAG063c5e603 [2021-11-23 02:46:04,989 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/data/bf68775e3/8dcbcc64b9814f2796fd653741df446c [2021-11-23 02:46:04,992 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:46:04,996 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:46:05,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:46:05,002 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:46:05,006 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:46:05,007 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:46:04" (1/1) ... [2021-11-23 02:46:05,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50ada214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:05, skipping insertion in model container [2021-11-23 02:46:05,008 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:46:04" (1/1) ... [2021-11-23 02:46:05,018 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:46:05,090 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:46:05,639 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-1.i[33021,33034] [2021-11-23 02:46:05,884 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:46:05,902 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:46:05,966 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-1.i[33021,33034] [2021-11-23 02:46:06,090 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:46:06,141 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:46:06,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:06 WrapperNode [2021-11-23 02:46:06,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:46:06,144 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:46:06,144 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:46:06,144 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:46:06,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:06" (1/1) ... [2021-11-23 02:46:06,201 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:06" (1/1) ... [2021-11-23 02:46:06,302 INFO L137 Inliner]: procedures = 177, calls = 349, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1159 [2021-11-23 02:46:06,302 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:46:06,303 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:46:06,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:46:06,304 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:46:06,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:06" (1/1) ... [2021-11-23 02:46:06,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:06" (1/1) ... [2021-11-23 02:46:06,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:06" (1/1) ... [2021-11-23 02:46:06,343 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:06" (1/1) ... [2021-11-23 02:46:06,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:06" (1/1) ... [2021-11-23 02:46:06,441 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:06" (1/1) ... [2021-11-23 02:46:06,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:06" (1/1) ... [2021-11-23 02:46:06,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:46:06,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:46:06,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:46:06,462 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:46:06,463 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:06" (1/1) ... [2021-11-23 02:46:06,473 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:46:06,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:46:06,502 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:46:06,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:46:06,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:46:06,564 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 02:46:06,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 02:46:06,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:46:06,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 02:46:06,565 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 02:46:06,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:46:06,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:46:06,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:46:06,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:46:06,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:46:06,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:46:06,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:46:06,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:46:06,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:46:06,903 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:46:06,905 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:46:08,294 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:46:08,766 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:46:08,766 INFO L301 CfgBuilder]: Removed 60 assume(true) statements. [2021-11-23 02:46:08,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:46:08 BoogieIcfgContainer [2021-11-23 02:46:08,770 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:46:08,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:46:08,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:46:08,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:46:08,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:46:04" (1/3) ... [2021-11-23 02:46:08,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43585759 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:46:08, skipping insertion in model container [2021-11-23 02:46:08,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:06" (2/3) ... [2021-11-23 02:46:08,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43585759 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:46:08, skipping insertion in model container [2021-11-23 02:46:08,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:46:08" (3/3) ... [2021-11-23 02:46:08,781 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test4-1.i [2021-11-23 02:46:08,788 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:46:08,788 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-23 02:46:08,852 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:46:08,861 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:46:08,862 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-23 02:46:08,888 INFO L276 IsEmpty]: Start isEmpty. Operand has 135 states, 110 states have (on average 1.809090909090909) internal successors, (199), 126 states have internal predecessors, (199), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-23 02:46:08,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-23 02:46:08,892 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:46:08,893 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-23 02:46:08,894 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 02:46:08,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:46:08,931 INFO L85 PathProgramCache]: Analyzing trace with hash 894004, now seen corresponding path program 1 times [2021-11-23 02:46:08,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:46:08,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473280556] [2021-11-23 02:46:08,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:08,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:46:09,079 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:46:09,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [906996115] [2021-11-23 02:46:09,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:09,081 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:46:09,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:46:09,085 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:46:09,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:46:09,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:46:09,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:46:09,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:46:09,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:46:09,385 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:46:09,385 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:46:09,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473280556] [2021-11-23 02:46:09,386 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:46:09,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906996115] [2021-11-23 02:46:09,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [906996115] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:46:09,388 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:46:09,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-23 02:46:09,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882483534] [2021-11-23 02:46:09,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:46:09,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:46:09,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:46:09,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:46:09,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:46:09,449 INFO L87 Difference]: Start difference. First operand has 135 states, 110 states have (on average 1.809090909090909) internal successors, (199), 126 states have internal predecessors, (199), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-11-23 02:46:11,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:46:11,308 INFO L93 Difference]: Finished difference Result 368 states and 640 transitions. [2021-11-23 02:46:11,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:46:11,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2021-11-23 02:46:11,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:46:11,332 INFO L225 Difference]: With dead ends: 368 [2021-11-23 02:46:11,332 INFO L226 Difference]: Without dead ends: 233 [2021-11-23 02:46:11,337 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:46:11,341 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 102 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:46:11,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 308 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-23 02:46:11,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2021-11-23 02:46:11,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 135. [2021-11-23 02:46:11,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 112 states have (on average 1.2410714285714286) internal successors, (139), 126 states have internal predecessors, (139), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-23 02:46:11,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 171 transitions. [2021-11-23 02:46:11,427 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 171 transitions. Word has length 3 [2021-11-23 02:46:11,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:46:11,428 INFO L470 AbstractCegarLoop]: Abstraction has 135 states and 171 transitions. [2021-11-23 02:46:11,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-11-23 02:46:11,428 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 171 transitions. [2021-11-23 02:46:11,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 02:46:11,432 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:46:11,433 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:46:11,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 02:46:11,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-23 02:46:11,661 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 02:46:11,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:46:11,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1485228930, now seen corresponding path program 1 times [2021-11-23 02:46:11,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:46:11,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814134379] [2021-11-23 02:46:11,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:11,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:46:11,718 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:46:11,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [960446626] [2021-11-23 02:46:11,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:11,723 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:46:11,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:46:11,726 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:46:11,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 02:46:12,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:46:12,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:46:12,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:46:12,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:46:12,283 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:46:12,288 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:46:12,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814134379] [2021-11-23 02:46:12,288 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:46:12,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960446626] [2021-11-23 02:46:12,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960446626] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:46:12,289 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:46:12,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:46:12,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962686480] [2021-11-23 02:46:12,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:46:12,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:46:12,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:46:12,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:46:12,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:46:12,294 INFO L87 Difference]: Start difference. First operand 135 states and 171 transitions. Second operand has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 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) [2021-11-23 02:46:15,606 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:46:17,308 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:46:18,869 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:46:18,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:46:18,870 INFO L93 Difference]: Finished difference Result 233 states and 285 transitions. [2021-11-23 02:46:18,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:46:18,894 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 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) Word has length 48 [2021-11-23 02:46:18,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:46:18,899 INFO L225 Difference]: With dead ends: 233 [2021-11-23 02:46:18,901 INFO L226 Difference]: Without dead ends: 232 [2021-11-23 02:46:18,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:46:18,903 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 59 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:46:18,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 447 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2021-11-23 02:46:18,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2021-11-23 02:46:18,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 230. [2021-11-23 02:46:18,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 201 states have (on average 1.1840796019900497) internal successors, (238), 215 states have internal predecessors, (238), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-23 02:46:18,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 282 transitions. [2021-11-23 02:46:18,938 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 282 transitions. Word has length 48 [2021-11-23 02:46:18,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:46:18,939 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 282 transitions. [2021-11-23 02:46:18,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 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) [2021-11-23 02:46:18,940 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 282 transitions. [2021-11-23 02:46:18,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-23 02:46:18,943 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:46:18,943 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:46:18,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 02:46:19,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:46:19,161 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 02:46:19,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:46:19,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1202544191, now seen corresponding path program 1 times [2021-11-23 02:46:19,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:46:19,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758610961] [2021-11-23 02:46:19,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:19,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:46:19,192 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:46:19,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1587039611] [2021-11-23 02:46:19,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:19,198 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:46:19,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:46:19,200 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:46:19,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 02:46:19,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:46:19,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:46:19,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:46:19,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:46:19,679 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:46:19,679 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:46:19,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758610961] [2021-11-23 02:46:19,680 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:46:19,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587039611] [2021-11-23 02:46:19,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587039611] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:46:19,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:46:19,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:46:19,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828086138] [2021-11-23 02:46:19,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:46:19,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:46:19,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:46:19,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:46:19,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:46:19,684 INFO L87 Difference]: Start difference. First operand 230 states and 282 transitions. Second operand has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 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) [2021-11-23 02:46:22,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:46:22,200 INFO L93 Difference]: Finished difference Result 230 states and 282 transitions. [2021-11-23 02:46:22,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:46:22,213 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 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) Word has length 49 [2021-11-23 02:46:22,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:46:22,217 INFO L225 Difference]: With dead ends: 230 [2021-11-23 02:46:22,217 INFO L226 Difference]: Without dead ends: 229 [2021-11-23 02:46:22,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:46:22,219 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 86 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:46:22,220 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 304 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-11-23 02:46:22,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2021-11-23 02:46:22,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2021-11-23 02:46:22,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 201 states have (on average 1.1791044776119404) internal successors, (237), 214 states have internal predecessors, (237), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-23 02:46:22,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 281 transitions. [2021-11-23 02:46:22,255 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 281 transitions. Word has length 49 [2021-11-23 02:46:22,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:46:22,256 INFO L470 AbstractCegarLoop]: Abstraction has 229 states and 281 transitions. [2021-11-23 02:46:22,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 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) [2021-11-23 02:46:22,256 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 281 transitions. [2021-11-23 02:46:22,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-23 02:46:22,259 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:46:22,260 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:46:22,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-23 02:46:22,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:46:22,473 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 02:46:22,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:46:22,473 INFO L85 PathProgramCache]: Analyzing trace with hash 298795953, now seen corresponding path program 1 times [2021-11-23 02:46:22,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:46:22,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997755106] [2021-11-23 02:46:22,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:22,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:46:22,497 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:46:22,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2038790545] [2021-11-23 02:46:22,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:22,498 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:46:22,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:46:22,511 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:46:22,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 02:46:22,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:46:22,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 02:46:22,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:46:23,179 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:46:23,179 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:46:23,179 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:46:23,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997755106] [2021-11-23 02:46:23,183 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:46:23,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038790545] [2021-11-23 02:46:23,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2038790545] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:46:23,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:46:23,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:46:23,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369555013] [2021-11-23 02:46:23,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:46:23,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:46:23,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:46:23,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:46:23,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:46:23,192 INFO L87 Difference]: Start difference. First operand 229 states and 281 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 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) [2021-11-23 02:46:25,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:46:25,432 INFO L93 Difference]: Finished difference Result 384 states and 476 transitions. [2021-11-23 02:46:25,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:46:25,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 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 51 [2021-11-23 02:46:25,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:46:25,442 INFO L225 Difference]: With dead ends: 384 [2021-11-23 02:46:25,443 INFO L226 Difference]: Without dead ends: 227 [2021-11-23 02:46:25,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:46:25,446 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 38 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:46:25,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 289 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-23 02:46:25,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-11-23 02:46:25,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2021-11-23 02:46:25,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 199 states have (on average 1.1758793969849246) internal successors, (234), 212 states have internal predecessors, (234), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-23 02:46:25,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 278 transitions. [2021-11-23 02:46:25,473 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 278 transitions. Word has length 51 [2021-11-23 02:46:25,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:46:25,474 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 278 transitions. [2021-11-23 02:46:25,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 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) [2021-11-23 02:46:25,474 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 278 transitions. [2021-11-23 02:46:25,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-23 02:46:25,478 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:46:25,478 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:46:25,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 02:46:25,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-11-23 02:46:25,692 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 02:46:25,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:46:25,693 INFO L85 PathProgramCache]: Analyzing trace with hash 122534312, now seen corresponding path program 1 times [2021-11-23 02:46:25,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:46:25,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793206005] [2021-11-23 02:46:25,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:25,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:46:25,748 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:46:25,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [392923087] [2021-11-23 02:46:25,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:25,749 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:46:25,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:46:25,756 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:46:25,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 02:46:26,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:46:26,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 02:46:26,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:46:26,315 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 02:46:26,315 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:46:26,315 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:46:26,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793206005] [2021-11-23 02:46:26,316 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:46:26,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392923087] [2021-11-23 02:46:26,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392923087] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:46:26,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:46:26,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:46:26,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921769637] [2021-11-23 02:46:26,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:46:26,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:46:26,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:46:26,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:46:26,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:46:26,322 INFO L87 Difference]: Start difference. First operand 227 states and 278 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:46:27,927 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:46:29,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:46:30,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:46:30,373 INFO L93 Difference]: Finished difference Result 426 states and 524 transitions. [2021-11-23 02:46:30,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:46:30,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 64 [2021-11-23 02:46:30,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:46:30,390 INFO L225 Difference]: With dead ends: 426 [2021-11-23 02:46:30,390 INFO L226 Difference]: Without dead ends: 225 [2021-11-23 02:46:30,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:46:30,393 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 11 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:46:30,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 286 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-11-23 02:46:30,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2021-11-23 02:46:30,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2021-11-23 02:46:30,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 197 states have (on average 1.1725888324873097) internal successors, (231), 210 states have internal predecessors, (231), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-23 02:46:30,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 275 transitions. [2021-11-23 02:46:30,421 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 275 transitions. Word has length 64 [2021-11-23 02:46:30,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:46:30,421 INFO L470 AbstractCegarLoop]: Abstraction has 225 states and 275 transitions. [2021-11-23 02:46:30,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:46:30,437 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 275 transitions. [2021-11-23 02:46:30,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-23 02:46:30,467 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:46:30,467 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:46:30,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 02:46:30,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:46:30,689 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 02:46:30,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:46:30,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1762473051, now seen corresponding path program 1 times [2021-11-23 02:46:30,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:46:30,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196437350] [2021-11-23 02:46:30,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:30,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:46:30,722 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:46:30,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1056465747] [2021-11-23 02:46:30,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:30,723 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:46:30,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:46:30,725 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:46:30,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 02:46:34,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:46:34,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 02:46:34,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:46:34,333 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 02:46:34,333 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:46:34,333 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:46:34,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196437350] [2021-11-23 02:46:34,334 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:46:34,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056465747] [2021-11-23 02:46:34,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1056465747] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:46:34,334 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:46:34,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:46:34,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523656765] [2021-11-23 02:46:34,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:46:34,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:46:34,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:46:34,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:46:34,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:46:34,337 INFO L87 Difference]: Start difference. First operand 225 states and 275 transitions. Second operand has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-23 02:46:38,499 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:46:38,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:46:38,501 INFO L93 Difference]: Finished difference Result 432 states and 542 transitions. [2021-11-23 02:46:38,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:46:38,522 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 77 [2021-11-23 02:46:38,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:46:38,525 INFO L225 Difference]: With dead ends: 432 [2021-11-23 02:46:38,525 INFO L226 Difference]: Without dead ends: 227 [2021-11-23 02:46:38,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:46:38,527 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 1 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:46:38,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 434 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2021-11-23 02:46:38,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-11-23 02:46:38,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2021-11-23 02:46:38,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 198 states have (on average 1.1767676767676767) internal successors, (233), 212 states have internal predecessors, (233), 22 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (26), 13 states have call predecessors, (26), 22 states have call successors, (26) [2021-11-23 02:46:38,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 281 transitions. [2021-11-23 02:46:38,552 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 281 transitions. Word has length 77 [2021-11-23 02:46:38,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:46:38,553 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 281 transitions. [2021-11-23 02:46:38,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-23 02:46:38,553 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 281 transitions. [2021-11-23 02:46:38,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-23 02:46:38,556 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:46:38,556 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:46:38,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-23 02:46:38,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:46:38,773 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 02:46:38,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:46:38,773 INFO L85 PathProgramCache]: Analyzing trace with hash -211946721, now seen corresponding path program 1 times [2021-11-23 02:46:38,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:46:38,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082050461] [2021-11-23 02:46:38,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:38,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:46:38,811 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:46:38,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [314466595] [2021-11-23 02:46:38,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:38,820 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:46:38,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:46:38,821 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:46:38,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531e8c24-23ae-4962-a86b-384f1b1dfd2e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-23 02:46:40,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:46:40,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 02:46:40,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:46:40,598 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 28 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:46:40,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:46:40,880 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 02:46:40,880 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:46:40,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082050461] [2021-11-23 02:46:40,880 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:46:40,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314466595] [2021-11-23 02:46:40,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [314466595] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:46:40,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1274324285] [2021-11-23 02:46:40,909 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2021-11-23 02:46:40,909 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:46:40,915 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:46:40,922 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:46:40,922 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:46:41,383 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-23 02:46:41,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:46:41,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 [2021-11-23 02:46:41,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 [2021-11-23 02:46:41,440 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-23 02:46:41,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 26 treesize of output 32 [2021-11-23 02:46:41,496 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 02:46:41,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:46:41,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 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 [2021-11-23 02:46:41,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 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 [2021-11-23 02:46:41,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:41,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-23 02:46:42,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 02:46:42,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 02:46:42,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 70 treesize of output 67 [2021-11-23 02:46:42,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-23 02:46:42,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-23 02:46:42,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-23 02:46:42,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,231 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 19 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 78 [2021-11-23 02:46:42,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 70 treesize of output 69 [2021-11-23 02:46:42,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 100 treesize of output 105 [2021-11-23 02:46:42,427 INFO L354 Elim1Store]: treesize reduction 130, result has 28.2 percent of original size [2021-11-23 02:46:42,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 117 treesize of output 150 [2021-11-23 02:46:42,483 INFO L354 Elim1Store]: treesize reduction 78, result has 17.0 percent of original size [2021-11-23 02:46:42,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 135 treesize of output 143 [2021-11-23 02:46:42,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 41 treesize of output 46 [2021-11-23 02:46:42,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 02:46:42,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 02:46:42,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:46:42,744 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-23 02:46:42,745 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 88 [2021-11-23 02:46:42,780 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-23 02:46:42,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 91 [2021-11-23 02:46:42,814 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-23 02:46:42,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 94 [2021-11-23 02:46:42,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-23 02:46:42,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-23 02:46:42,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-23 02:46:42,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:42,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-23 02:46:43,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:43,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:43,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:43,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:43,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:43,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:43,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:43,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 51 treesize of output 21 [2021-11-23 02:46:43,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:43,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:43,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:43,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:43,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:43,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:43,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2021-11-23 02:46:43,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:43,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:43,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:43,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:43,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:43,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:43,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-23 02:46:43,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:43,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:43,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:43,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:43,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:43,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:43,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2021-11-23 02:46:43,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:43,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:43,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:43,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:43,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:43,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:43,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:43,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 21 [2021-11-23 02:46:52,754 WARN L227 SmtUtils]: Spent 9.33s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 02:46:52,755 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-23 02:46:52,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2853 treesize of output 2330 [2021-11-23 02:46:52,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:06,815 WARN L227 SmtUtils]: Spent 13.97s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 02:47:06,816 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-23 02:47:06,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2954 treesize of output 2672 [2021-11-23 02:47:19,751 WARN L227 SmtUtils]: Spent 12.81s on a formula simplification. DAG size of input: 252 DAG size of output: 143 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 02:47:19,752 INFO L354 Elim1Store]: treesize reduction 2662, result has 30.3 percent of original size [2021-11-23 02:47:19,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 2858 treesize of output 2688 [2021-11-23 02:47:21,265 INFO L354 Elim1Store]: treesize reduction 80, result has 20.8 percent of original size [2021-11-23 02:47:21,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 case distinctions, treesize of input 25956 treesize of output 25967 [2021-11-23 02:47:22,428 INFO L354 Elim1Store]: treesize reduction 142, result has 15.5 percent of original size [2021-11-23 02:47:22,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 25955 treesize of output 25967 [2021-11-23 02:47:23,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:23,372 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-23 02:47:23,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 20 [2021-11-23 02:47:23,429 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:23,549 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:23,582 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:23,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:24,050 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:47:24,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 53 treesize of output 63 [2021-11-23 02:47:24,176 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:24,224 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:24,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:24,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 15 [2021-11-23 02:47:24,409 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:24,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:24,626 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-23 02:47:24,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 36 treesize of output 20 [2021-11-23 02:47:24,667 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:24,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:24,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 15 [2021-11-23 02:47:25,043 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:25,078 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:25,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:25,540 INFO L354 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2021-11-23 02:47:25,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 38 treesize of output 32 [2021-11-23 02:47:25,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:25,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:25,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:25,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 47 [2021-11-23 02:47:25,926 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:26,861 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:47:26,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:26,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:26,897 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:47:26,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:26,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:26,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:26,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:26,978 INFO L244 Elim1Store]: Index analysis took 118 ms [2021-11-23 02:47:26,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3577 treesize of output 3127 [2021-11-23 02:47:27,201 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:47:27,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:27,228 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:47:27,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:27,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:27,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:27,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:27,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:27,324 INFO L244 Elim1Store]: Index analysis took 123 ms [2021-11-23 02:47:27,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3689 treesize of output 3227 [2021-11-23 02:47:27,458 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:47:27,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:27,483 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:47:27,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:27,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:27,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:27,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:27,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:27,570 INFO L244 Elim1Store]: Index analysis took 112 ms [2021-11-23 02:47:27,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3589 treesize of output 3133 [2021-11-23 02:47:28,017 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:47:28,070 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:47:28,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:28,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:28,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:28,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:28,153 INFO L244 Elim1Store]: Index analysis took 136 ms [2021-11-23 02:47:28,358 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:47:28,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 3577 treesize of output 3197 [2021-11-23 02:47:28,771 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:28,859 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:28,937 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:47:28,974 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:47:28,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:29,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:29,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:29,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:29,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:29,091 INFO L244 Elim1Store]: Index analysis took 154 ms [2021-11-23 02:47:29,235 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:47:29,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 3689 treesize of output 3279 [2021-11-23 02:47:29,446 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:47:29,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:29,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:29,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:29,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:29,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:29,671 INFO L244 Elim1Store]: Index analysis took 225 ms [2021-11-23 02:47:29,690 INFO L354 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2021-11-23 02:47:29,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 3589 treesize of output 3133 [2021-11-23 02:47:30,396 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:47:30,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:30,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:30,486 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:47:30,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:30,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:30,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:30,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:30,648 INFO L244 Elim1Store]: Index analysis took 252 ms [2021-11-23 02:47:30,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3577 treesize of output 3127 [2021-11-23 02:47:30,853 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:30,947 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:31,091 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:47:31,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:31,123 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:47:31,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:31,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:31,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:31,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:31,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:31,219 INFO L244 Elim1Store]: Index analysis took 128 ms [2021-11-23 02:47:31,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3689 treesize of output 3227 [2021-11-23 02:47:31,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:31,412 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:47:31,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:31,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:31,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:31,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:31,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:31,502 INFO L244 Elim1Store]: Index analysis took 109 ms [2021-11-23 02:47:31,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3589 treesize of output 3133 [2021-11-23 02:47:32,069 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:32,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:32,446 INFO L244 Elim1Store]: Index analysis took 252 ms [2021-11-23 02:47:35,416 INFO L354 Elim1Store]: treesize reduction 480, result has 74.4 percent of original size [2021-11-23 02:47:35,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 3698 treesize of output 4622 [2021-11-23 02:47:36,214 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:36,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:36,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:36,753 INFO L244 Elim1Store]: Index analysis took 106 ms [2021-11-23 02:47:38,431 INFO L354 Elim1Store]: treesize reduction 470, result has 74.2 percent of original size [2021-11-23 02:47:38,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 3598 treesize of output 4488 [2021-11-23 02:47:39,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:39,689 INFO L244 Elim1Store]: Index analysis took 170 ms [2021-11-23 02:47:40,019 INFO L354 Elim1Store]: treesize reduction 1848, result has 0.1 percent of original size [2021-11-23 02:47:40,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 3586 treesize of output 3130 [2021-11-23 02:47:42,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:42,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:42,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:42,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:42,415 INFO L244 Elim1Store]: Index analysis took 273 ms [2021-11-23 02:47:47,636 INFO L354 Elim1Store]: treesize reduction 1554, result has 60.0 percent of original size [2021-11-23 02:47:47,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 7 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 95710 treesize of output 96552 [2021-11-23 02:51:46,269 WARN L227 SmtUtils]: Spent 5.34s on a formula simplification that was a NOOP. DAG size: 2560 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 02:57:30,549 WARN L227 SmtUtils]: Spent 7.83s on a formula simplification that was a NOOP. DAG size: 2914 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 02:57:45,438 WARN L227 SmtUtils]: Spent 7.48s on a formula simplification that was a NOOP. DAG size: 2912 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)